Initialer Stand von AIS nach BSMD portiert, bisher ohne Testing

AIS/bsmd.AISService/AIS/AIS.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Text;
+
+// ship details suchbar hier: http://www.itu.int/cgi-bin/htsh/mars/ship_search.sh
+
+namespace bsmd.AISService.AIS
+{
+    public abstract class AIS
+    {        
+        protected const double ERAD = 6378.135;
+        protected const double DE2RA = 0.01745329252;
+        protected const double AVG_ERAD = 6371.0;
+
+
+        #region enumerations
+
+        public enum Status
+        {
+            OK,
+            UNKNOWN_TYPE,
+            UNSUPPORTED,
+            ILLEGAL_ARGUMENT,
+            PARSE_ERROR
+        }
+
+        public enum AISType
+        {
+            AIS_NONE = 0,
+            POSITION_REPORT,
+            POSITION_REPORT_ASSIGNED,
+            POSITION_REPORT_SPECIAL,
+            BASE_STATION_REPORT,
+            STATIC_VOYAGE_DATA,
+            BINARY_ADDR_MSG,
+            BINARY_ACK,
+            BINARY_BCAST,
+            SAR_AIRCRAFT,
+            UTC_INQUIRY,
+            UTC_RESPONSE,
+            SAFETY_RELATED_MSG,
+            SAFETY_RELATED_ACK,
+            SAFETY_RELATED_BCAST,
+            INTERROGATION,
+            ASSIGN_MODE_CMD,
+            DGNSS_BCAST,
+            POSITION_REPORT_B_EQUIP,
+            POSITION_REPORT_B_EQUIP_EXT,
+            DATA_LINK_MAN,
+            AIDS_TO_NAV_REPORT,
+            CHANNEL_MNGNT,
+            GROUP_ASSIGNMENT,
+            CLASS_B_STATIC_DATA
+        };
+
+        #endregion
+
+        #region private members
+
+        private AISType type = AISType.AIS_NONE;
+        protected int userId;
+        protected string data;
+        private string station;
+
+        #endregion
+
+        #region Properties
+
+        public AISType MessageType
+        {
+            get { return this.type; }
+        }
+
+        public int MMSI
+        {
+            get { return this.userId; }
+        }
+
+        public string Station
+        {
+            get { return this.station; }
+            set { this.station = value; }
+        }
+
+        #endregion
+
+        #region abstract method signatures
+
+        protected abstract Status Decode();
+
+        #endregion
+
+        #region static methods
+
+        internal static AIS Decode(string data, ref Status status)
+        {
+            AIS result = null;
+
+            if (data == null || data.Length == 0)
+            {
+                status = Status.ILLEGAL_ARGUMENT;
+                return null;
+            }
+
+            BitArray bits = AIS.DecodeChar(data[0]);            
+            int type = AIS.GetInt(bits, 0, 5);            
+
+            result = AIS.CreateMessage(type);
+            if (result != null)
+            {
+                result.data = data;
+                status = result.Decode();
+            }
+            else
+            {
+                status = Status.UNSUPPORTED;
+            }
+
+            return result;
+        }        
+
+        /// <summary>
+        /// Factory method to create messages based on the message type
+        /// </summary>
+        protected static AIS CreateMessage(int type)    
+        {
+            AIS result = null;
+
+            switch (type)
+            {
+                case 1:
+                    result = new AIS_PosReport();
+                    result.type = AISType.POSITION_REPORT;
+                    break;
+                case 2:
+                    result = new AIS_PosReport();
+                    result.type = AISType.POSITION_REPORT_ASSIGNED;
+                    break;
+                case 3:
+                    result = new AIS_PosReport();
+                    result.type = AISType.POSITION_REPORT_SPECIAL;
+                    break;
+
+                case 5:
+                    result = new AIS_StaticData();
+                    result.type = AISType.STATIC_VOYAGE_DATA;
+                    break;
+
+                case 18:
+                    result = new AIS_ClassB();
+                    result.type = AISType.POSITION_REPORT_B_EQUIP;
+                    break;
+
+                case 19:
+                    result = new AIS_ClassBExt();
+                    result.type = AISType.POSITION_REPORT_B_EQUIP_EXT;
+                    break;
+
+                case 24:
+                    result = new AIS_ClassBStatic();
+                    result.type = AISType.CLASS_B_STATIC_DATA;
+                    break;
+
+                default:
+                    break;
+            }
+
+            return result;
+        }
+
+        #region static helpers
+
+        protected static BitArray DecodeChar(char c)
+        {
+            Byte b = Convert.ToByte(c);
+            return DecodeByte(b);
+        }
+
+        protected static BitArray DecodeByte(byte c)
+        {
+            c += 40;
+            if (c > 128) c += 32;
+            else c += 40;
+
+            c &= 63;            
+
+            BitArray b = new BitArray(6);
+            
+            for (int i = 0; i < 6; i++)
+            {
+                b[i] = ((c >> (5-i)) & 1) == 1;
+            }
+
+            return b;
+        }
+
+        protected static BitArray DecodeBinary(string data)
+        {
+            BitArray result = new BitArray(data.Length * 6, false);
+
+            for (int i = 0; i < data.Length; i++)
+            {
+                BitArray charBits = DecodeChar(data[i]);
+
+                for (int j = 0; j < charBits.Count; j++)
+                    result[i * 6 + j] = charBits[j];
+                
+            }
+
+            return result;
+        }
+
+        protected static int GetInt(BitArray bits, int lo, int hi)
+        {
+            int result = 0;
+            int test = 1;
+
+            for (int i = hi; i >= lo; i--, test <<= 1)
+            {
+                if (bits[i]) result |= test;
+            }
+            return result;
+        }
+
+        protected static char GetAISChar(int val)
+        {
+            if(val < 32) return Convert.ToChar(val + 64);
+            if(val < 64) return Convert.ToChar(val);
+            return ' ';
+        }
+
+        #endregion
+
+        #region public static helpers        
+
+        /// <summary>
+        /// mehr dazu hier:
+        /// http://www.codeguru.com/cpp/cpp/algorithms/general/article.php/c5115/
+        /// </summary>
+        public static double GetDistance(double lat1, double lon1, double lat2, double lon2)
+        {
+            lat1 *= AIS.DE2RA;
+            lon1 *= AIS.DE2RA;
+            lat2 *= AIS.DE2RA;
+            lon2 *= AIS.DE2RA;
+            double d = Math.Sin(lat1) * Math.Sin(lat2) + Math.Cos(lat1) * Math.Cos(lat2) * Math.Cos(lon1 -lon2);
+            return (AIS.AVG_ERAD * Math.Acos(d));
+        }
+
+
+        #endregion
+
+        #endregion
+
+        #region overrides
+
+        public override string ToString()
+        {
+            return Enum.GetName(typeof(AIS.AISType), this.MessageType);
+        }
+
+        #endregion
+
+    }
+}

AIS/bsmd.AISService/AIS/AIS_ClassB.cs

@@ -0,0 +1,128 @@
+using System;
+using System.Collections;
+using System.Text;
+using System.Diagnostics;
+
+namespace bsmd.AISService.AIS
+{
+    public class AIS_ClassB : AIS
+    {
+        #region private members
+
+        private int repeatIndicator;        
+        private int reserved;
+        private int sog;
+        private int accuracy;
+        private int longitude;
+        private int latitude;
+        private int cog;
+        private int trueHeading;
+        private int utcTimestampSecs;
+        private DateTime timestamp;
+        private int reservedRegional;
+        private int spare;
+        private int assignedModeFlag;
+        private int raimFlag;
+        private int commStateSelectedFlag;
+        private int commState;
+
+        #endregion
+
+        #region Properties
+
+        public int CogVal { get { return this.cog; } }
+        public int SogVal { get { return this.sog; } }
+        public int LatitudeVal { get { return this.latitude; } }
+        public int LongitudeVal { get { return this.longitude; } }
+
+        public string DBTimestamp
+        {
+            get
+            {
+                return string.Format("{0}-{1}-{2} {3}:{4}:{5}",
+                   this.timestamp.Year, this.timestamp.Month, this.timestamp.Day,
+                   this.timestamp.Hour, this.timestamp.Minute, this.timestamp.Second);
+            }
+        }
+        
+
+
+        public double Cog
+        {
+            get { return this.cog / 10.0f; }
+        }
+
+        public double Sog
+        {
+            get { return this.sog / 10.0f; }
+        }
+
+        public double Latitude
+        {
+            get { return this.latitude / 600000.0f; }
+        }
+
+        public double Longitude
+        {
+            get { return this.longitude / 600000.0f; }
+        }
+
+        public DateTime Timestamp
+        {
+            get { return this.timestamp; }
+        }
+
+        public int? TrueHeading
+        {
+            get
+            {
+                if (this.trueHeading == 511) return null;
+                return this.trueHeading;
+            }
+        }
+
+        #endregion
+
+        protected override AIS.Status Decode()
+        {
+            BitArray bits = AIS.DecodeBinary(this.data);
+            Status result = Status.OK;
+
+            try
+            {
+                int type = AIS.GetInt(bits, 0, 5);
+                if (type != 18)
+                {
+                    result = Status.ILLEGAL_ARGUMENT;
+                }
+                else
+                {
+                    this.repeatIndicator = AIS.GetInt(bits, 6, 7);
+                    this.userId = AIS.GetInt(bits, 8, 37);
+                    this.reserved = AIS.GetInt(bits, 38, 45);
+                    this.sog = AIS.GetInt(bits, 46, 55);
+                    this.accuracy = AIS.GetInt(bits, 56, 56);
+                    this.longitude = AIS.GetInt(bits, 57, 84);
+                    this.latitude = AIS.GetInt(bits, 85, 111);
+                    this.cog = AIS.GetInt(bits, 112, 123);
+                    this.trueHeading = AIS.GetInt(bits, 124, 132);
+                    this.utcTimestampSecs = AIS.GetInt(bits, 133,138);
+                    this.timestamp = DateTime.Now;
+                    this.reservedRegional = AIS.GetInt(bits, 139, 140);
+                    this.spare = AIS.GetInt(bits, 141, 145);
+                    this.assignedModeFlag = AIS.GetInt(bits, 146, 146);
+                    this.raimFlag = AIS.GetInt(bits, 147, 147);
+                    this.commStateSelectedFlag = AIS.GetInt(bits, 148, 148);
+                    this.commState = AIS.GetInt(bits, 149, 167);
+                }
+            }
+            catch (Exception e)
+            {
+                Trace.WriteLine(string.Format("Error decoding AIS class B posreport: {0}", e.Message));
+                result = Status.PARSE_ERROR;
+            }
+
+            return result;
+        }
+    }
+}

AIS/bsmd.AISService/AIS/AIS_ClassBExt.cs

@@ -0,0 +1,130 @@
+using System;
+using System.Collections;
+using System.Text;
+using System.Diagnostics;
+
+namespace bsmd.AISService.AIS
+{
+    /// <summary>
+    /// Diese Nachricht wird normalerweise von Class B Geräten nicht verschickt.
+    /// Sie wird nur als Antwort auf einen sog. "Base station poll" gesendet.
+    /// Wir lesen sie trotzdem ;)
+    /// </summary>
+    // Todo
+    public class AIS_ClassBExt : AIS
+    {
+        #region private members
+
+        private int repeatIndicator;        
+        private int spare1;
+        private int sog;
+        private int accuracy;
+        private int longitude;
+        private int latitude;
+        private int cog;
+        private int trueHeading;
+        private int utcTimestampSecond;
+        private DateTime timestamp;
+        private int spare2;
+        private string name;
+        private int shipType;
+        private int dimension;
+        private int typeofDevice;
+        private int raimFlag;
+        private int dte;
+        private int assignedMode;
+        private int spare3;
+
+        #endregion
+
+        #region Properties
+
+        public string Name
+        {
+            get { return this.name; }
+        }
+
+        public DateTime Timestamp
+        {
+            get { return this.timestamp; }
+        }
+
+        public double Latitude
+        {
+            get { return this.latitude / 600000.0f; }
+        }
+
+        public double Longitude
+        {
+            get { return this.longitude / 600000.0f; }
+        }
+
+        public int TrueHeading
+        {
+            get { return this.trueHeading; }
+        }
+
+        public double Cog
+        {
+            get { return (double)this.cog / 10.0f; }
+        }
+
+        #endregion
+
+        protected override AIS.Status Decode()
+        {
+            BitArray bits = AIS.DecodeBinary(this.data);
+            Status result = Status.OK;
+
+            try
+            {
+                int type = AIS.GetInt(bits, 0, 5);
+                if (type != 19)
+                {
+                    result = Status.ILLEGAL_ARGUMENT;
+                }
+                else
+                {
+                    this.repeatIndicator = AIS.GetInt(bits, 6, 7);
+                    this.userId = AIS.GetInt(bits, 8, 37);
+                    this.spare1 = AIS.GetInt(bits, 38, 45);
+                    this.sog = AIS.GetInt(bits, 46, 55);
+                    this.accuracy = AIS.GetInt(bits, 56, 56);
+                    this.longitude = AIS.GetInt(bits, 57, 84);
+                    this.latitude = AIS.GetInt(bits, 85, 111);
+                    this.cog = AIS.GetInt(bits, 112, 123);
+                    this.trueHeading = AIS.GetInt(bits, 124, 132);
+                    this.utcTimestampSecond = AIS.GetInt(bits, 133, 138);
+                    this.timestamp = DateTime.Now;
+                    this.spare2 = AIS.GetInt(bits, 139, 142);
+
+                    StringBuilder sb_name = new StringBuilder(20);
+                    for (int i = 0; i < 20; i++)
+                    {
+                        int cval = AIS.GetInt(bits, 143 + (6 * i), 148 + (6 * i));
+                        char ch = AIS.GetAISChar(cval);
+                        if (ch == '@') ch = ' ';
+                        sb_name.Append(ch);
+                    }
+                    this.name = sb_name.ToString().Trim();
+
+                    this.shipType = AIS.GetInt(bits, 263, 270);
+                    this.dimension = AIS.GetInt(bits, 271, 300);
+                    this.typeofDevice = AIS.GetInt(bits, 301, 304);
+                    this.raimFlag = AIS.GetInt(bits, 305, 305);
+                    this.dte = AIS.GetInt(bits, 306, 306);
+                    this.assignedMode = AIS.GetInt(bits, 307, 307);
+                    this.spare3 = AIS.GetInt(bits, 308, 311);
+                }
+            }
+
+            catch (Exception e)
+            {
+                Trace.WriteLine(string.Format("Error decoding AIS class B Ext posreport: {0}", e.Message));
+                result = Status.PARSE_ERROR;
+            }
+
+            return result;
+        }
+    }
+}

AIS/bsmd.AISService/AIS/AIS_ClassBStatic.cs

@@ -0,0 +1,130 @@
+using System;
+using System.Collections;
+using System.Text;
+using System.Diagnostics;
+
+namespace bsmd.AISService.AIS
+{
+    public class AIS_ClassBStatic : AIS
+    {
+        #region private members
+
+        private int repeatIndicator;        
+        private int partNumber;
+        private string name;
+        private int shipType;
+        private string vendorId;
+        private string callsign;
+        private int dimension;
+        private int spare;
+
+        #endregion
+
+        #region Properties        
+
+        public bool IsPartA
+        {
+            get { return this.partNumber == 0; }
+        }
+
+        public bool IsPartB
+        {
+            get { return this.partNumber == 1; }
+        }
+
+        public string Name
+        {
+            get { return this.name; }
+        }
+
+        public string ShipType
+        {
+            get { return AIS_StaticData.GetShipType(this.shipType); }
+        }
+
+        public string VendorId
+        {
+            get { return this.vendorId; }
+        }
+
+        public string Callsign
+        {
+            get { return this.callsign; }
+        }
+
+        public int ShipTypeVal
+        {
+            get { return this.shipType; }
+        }    
+
+        // Todo: Dimensions..          
+
+        #endregion
+
+        protected override AIS.Status Decode()
+        {
+            BitArray bits = AIS.DecodeBinary(this.data);
+            Status result = Status.OK;
+
+            try
+            {
+                int type = AIS.GetInt(bits, 0, 5);
+                if (type != 24)
+                {
+                    result = Status.ILLEGAL_ARGUMENT;
+                }
+                else
+                {
+                    this.repeatIndicator = AIS.GetInt(bits, 6, 7);
+                    this.userId = AIS.GetInt(bits, 8, 37);
+                    this.partNumber = AIS.GetInt(bits, 38, 39);
+                    if (this.IsPartA)
+                    {
+                        StringBuilder sb_name = new StringBuilder(20);
+                        for (int i = 0; i < 20; i++)
+                        {
+                            int cval = AIS.GetInt(bits, 40 + (6 * i), 45 + (6 * i));
+                            char ch = AIS.GetAISChar(cval);
+                            if (ch == '@') ch = ' ';
+                            sb_name.Append(ch);
+                        }
+                        this.name = sb_name.ToString().Trim();
+                    }
+                    else
+                    {
+                        this.shipType = AIS.GetInt(bits, 40, 47);
+
+                        StringBuilder sb_vendor = new StringBuilder(7);
+                        for (int i = 0; i < 7; i++)
+                        {
+                            int cval = AIS.GetInt(bits, 48 + (6 * i), 53 + (6 * i));
+                            char ch = AIS.GetAISChar(cval);
+                            if (ch == '@') ch = ' ';
+                            sb_vendor.Append(ch);
+                        }
+                        this.vendorId = sb_vendor.ToString().Trim();
+
+                        StringBuilder sb_callsign = new StringBuilder(7);
+                        for (int i = 0; i < 7; i++)
+                        {
+                            int cval = AIS.GetInt(bits, 90 + (6 * i), 95 + (6 * i));
+                            char ch = AIS.GetAISChar(cval);
+                            if (ch == '@') ch = ' ';
+                            sb_callsign.Append(ch);
+                        }
+                        this.callsign = sb_callsign.ToString().Trim();
+                        this.dimension = AIS.GetInt(bits, 141, 161);
+                        this.spare = AIS.GetInt(bits, 162, 167);
+                    }
+                }
+            }
+            catch (Exception e)
+            {
+                Trace.WriteLine(string.Format("Error decoding AIS class B static data: {0}", e.Message));
+                result = Status.PARSE_ERROR;
+            }
+
+            return result;
+        }
+    }
+}

AIS/bsmd.AISService/AIS/AIS_Configuration.cs

@@ -0,0 +1,162 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+using System.Reflection;
+using System.Xml;
+using System.Xml.Serialization;
+
+namespace bsmd.AISService.AIS
+{
+    [Serializable]
+    public class AIS_Configuration
+    {
+        private string filename;
+        private string dbConnectionString;        
+        private int dbUpdateInterval = 500; // milliseconds
+        private int dbMinPosReportTimeDifference = 120; // seconds
+        private int stationIsOfflineTimeDifferenceSecs = 180; // seconds
+        private int targetStaleMins = 31; // minutes
+
+        public List<SerialPort> SerialPorts = new List<SerialPort>();
+        public List<TelnetConnection> TelnetConnections = new List<TelnetConnection>();
+
+        #region Properties
+
+        public string Configuration_Path
+        {
+            get { return this.filename; }
+            set { this.filename = value; }
+        }
+
+        public string DBConnectionString
+        {
+            get { return this.dbConnectionString; }
+            set { this.dbConnectionString = value; }
+        }     
+
+        /// <summary>
+        /// timer interval for database updates
+        /// </summary>
+        public int DBUpdateInterval
+        {
+            get { return this.dbUpdateInterval; }
+            set { this.dbUpdateInterval = value; }
+        }
+
+        /// <summary>
+        /// minimum amount of minutes between two position reports to be
+        /// written to database
+        /// </summary>
+        public int DBMinPosReportTimeDifference
+        {
+            get { return this.dbMinPosReportTimeDifference; }
+            set { this.dbMinPosReportTimeDifference = value; }
+        }
+
+        /// <summary>
+        /// number of seconds after which a station is marked offline since
+        /// sending the last pos report
+        /// </summary>
+        public int StationIsOfflineTimeDifferenceSecs
+        {
+            get { return this.stationIsOfflineTimeDifferenceSecs; }
+            set { this.stationIsOfflineTimeDifferenceSecs = value; }
+        }
+
+        /// <summary>
+        /// if last update is older than this value then the target ist removed from
+        /// the current target queue (target went offline or out of range)
+        /// </summary>
+        public int TargetStaleMins
+        {
+            get { return this.targetStaleMins; }
+            set { this.targetStaleMins = value; }
+        }
+
+        /// <summary>
+        /// Root path to where Viewer stores OSM tiles
+        /// </summary>
+        public string TilePath { get; set; }
+
+        /// <summary>
+        /// full path to logfile
+        /// </summary>
+        public string LogfilePath { get; set; }
+
+        /// <summary>
+        /// outputs assembly version
+        /// </summary>
+        public static string VersionInfo
+        {
+            get
+            {
+                Version version = Assembly.GetExecutingAssembly().GetName().Version;
+                return version.ToString();
+            }
+        }
+
+        #endregion
+
+        #region Load/Save
+
+        public static AIS_Configuration Load(string filename)
+        {
+            if (!File.Exists(filename)) return null;
+
+            // Create an instance of the XmlSerializer specifying type and namespace.
+            XmlSerializer serializer = new XmlSerializer(typeof(AIS_Configuration));
+
+            // A FileStream is needed to read the XML document.
+            FileStream fs = new FileStream(filename, FileMode.Open);
+            XmlReader reader = new XmlTextReader(fs);
+
+            AIS_Configuration configuration = serializer.Deserialize(reader) as AIS_Configuration;
+            reader.Close();
+            configuration.filename = filename;
+
+
+            return configuration;
+        }
+
+        public bool Save()
+        {
+            bool retval = true;
+            try
+            {
+                XmlSerializer serializer = new XmlSerializer(typeof(AIS_Configuration));
+                Stream fs = new FileStream(this.filename, FileMode.Create);
+                XmlWriter writer = new XmlTextWriter(fs, new UTF8Encoding());                
+                serializer.Serialize(writer, this);
+                writer.Close();
+            }
+            catch (Exception e)
+            {
+                System.Diagnostics.Debug.Write("Error during Serialize: " + e.ToString());
+                retval = false;
+            }
+            return retval;
+        }
+
+        #endregion        
+
+        #region internal classes
+
+        public class SerialPort
+        {
+            public string station;
+            public string ComPort;
+            public int BaudRate = 9600;
+            public bool enabled = false;
+        }
+
+        public class TelnetConnection
+        {
+            public string ipAddress;
+            public int port;
+        }
+
+        #endregion
+
+    }
+}

AIS/bsmd.AISService/AIS/AIS_Decoder.cs

@@ -0,0 +1,194 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Text;
+
+namespace bsmd.AISService.AIS
+{
+
+    /// <summary>
+    /// Diese Klasse setzt fragmentierte AIS Telegramme wieder zusammen und decodiert sie
+    /// </summary>
+    public class AIS_Decoder
+    {
+
+        public delegate void AISMessageHandler(AIS message);
+        public event AISMessageHandler AISMessageReceived;
+
+        #region class AISQueueElement
+
+        public class AISQueueElement
+        {
+            public int seq_nr;
+            public int total_nr;
+            public int? id;
+            public string data;
+            public string station;
+        }
+
+        #endregion
+
+        #region private members
+
+        private Queue<AISQueueElement> inputDataQueue = new Queue<AISQueueElement>();
+        private Thread decodingThread;
+        private bool runDecoder = true;
+        private int sleepMS = 250;
+        private Dictionary<int, List<AISQueueElement>> fragmentDict = new Dictionary<int, List<AISQueueElement>>();
+
+        #endregion
+
+        #region Properties
+
+        public int QueueSize
+        {
+            get { return this.inputDataQueue.Count; }
+        }
+
+        #endregion
+
+        #region public methods
+
+        public void Decode(string data, int seq_nr, int total_nr, int? id, string station)
+        {
+            lock (this.inputDataQueue)
+            {
+                AISQueueElement element = new AISQueueElement();
+                element.data = data;
+                element.seq_nr = seq_nr;
+                element.total_nr = total_nr;
+                element.id = id;
+                element.station = station;
+
+                this.inputDataQueue.Enqueue(element);
+            }        
+        }        
+
+        public void Start()
+        {
+            this.decodingThread = new Thread(new ThreadStart(this.Run));
+            this.decodingThread.Start();
+        }
+
+        public void Stop()
+        {
+            this.runDecoder = false;
+            if((this.decodingThread != null) &&
+                (this.decodingThread.ThreadState == ThreadState.Running))
+                this.decodingThread.Join();
+            this.inputDataQueue.Clear(); // discard unread elements
+        }
+
+        #endregion
+
+        /// <summary>
+        /// Thread worker method
+        /// </summary>
+        protected void Run()
+        {
+            while (this.runDecoder)
+            {
+                AISQueueElement inputData = null;
+
+                lock (this.inputDataQueue)
+                {
+                    if (this.inputDataQueue.Count > 0)
+                    {
+                        inputData = this.inputDataQueue.Dequeue();
+                    }
+                }
+
+                if (inputData == null)
+                    Thread.Sleep(this.sleepMS);
+                else
+                {
+                    string aisRawData = null;
+                    if (inputData.total_nr == 1)
+                    {
+                        aisRawData = inputData.data;
+                    }
+                    else
+                    {
+                        int id = inputData.id ?? -1;
+
+                        if (!this.fragmentDict.ContainsKey(id))
+                            this.fragmentDict.Add(id, new List<AISQueueElement>());
+                        this.fragmentDict[id].Add(inputData);
+                        
+                        // sind alle Fragmente vorhanden?
+                        if (AIS_Decoder.FragmentsComplete(this.fragmentDict[id]))
+                        {
+                            // Fragmente zusammensetzen
+                            aisRawData = AIS_Decoder.ConcatenateFragments(this.fragmentDict[id]);
+                            this.fragmentDict.Remove(id);
+                        }
+
+                    }
+
+                    if (aisRawData != null)
+                    {
+                        AIS.Status status = AIS.Status.OK;
+                        AIS message = AIS.Decode(aisRawData, ref status);      
+                        if (status == AIS.Status.OK)
+                        {
+                            message.Station = inputData.station;
+                            this.OnAISMessageReceived(message);
+                        }
+                    }
+
+                }
+            }
+        }
+
+        #region private helpers
+
+        /// <summary>
+        /// check to see if all fragments are available
+        /// </summary>
+        private static bool FragmentsComplete(List<AISQueueElement> elements)
+        {
+            if (elements == null || elements.Count == 0) return false;
+            int num = elements[0].total_nr;
+            
+            for (int i = 1; i <= num; i++)
+            {
+                bool foundElements = false;
+                for (int j = 0; j < elements.Count; j++)
+                {
+                    if (elements[j].seq_nr == i)
+                        foundElements = true;
+                }
+                if (!foundElements) return false; // etwas fehlt noch
+            }
+            return true;
+        }
+
+        /// <summary>
+        /// assembles message fragments. Care must be taken since fragments can appear
+        /// out of order
+        /// </summary>
+        private static string ConcatenateFragments(List<AISQueueElement> elements)
+        {
+            if (elements == null || elements.Count == 0) return string.Empty;
+            int num = elements[0].total_nr;
+            StringBuilder sb = new StringBuilder();
+
+            for (int i = 1; i <= num; i++)
+            {
+                for (int j = 0; j < elements.Count; j++)
+                    if (elements[j].seq_nr == i)
+                        sb.Append(elements[j].data);
+            }
+            return sb.ToString();
+        }
+
+        #endregion
+
+        protected void OnAISMessageReceived(AIS message)
+        {
+            if (this.AISMessageReceived != null)
+                this.AISMessageReceived(message);
+        }
+
+    }
+}

AIS/bsmd.AISService/AIS/AIS_PosReport.cs

@@ -0,0 +1,187 @@
+using System;
+using System.Collections;
+using System.Diagnostics;
+using System.Text;
+
+namespace bsmd.AISService.AIS
+{
+    public class AIS_PosReport : AIS
+    {        
+        private int navstatus;
+        private int rot;
+        private int sog;
+        private int accur;
+        private int longitude;
+        private int latitude;
+        private int cog;
+        private int trueheading;
+        private DateTime timestamp;
+        private int utcTimeSecond;
+        private int reserved;
+        private int spare;
+        private int raim;
+        private int commstate;        
+
+        #region Properties
+
+        public int NavStatusVal { get { return this.navstatus; } }
+        public int ROTVal { get { return this.rot; } }
+        public int SOGVal { get { return this.sog; } }
+        public int COGVal { get { return this.cog; } }
+        public int Accuracy { get { return this.accur; } }
+        public int LatitudeVal { get { return this.latitude; } }
+        public int LongitudeVal { get { return this.longitude; } }
+        public string DBTimestamp
+        {
+            get
+            {
+                return string.Format("{0}-{1}-{2} {3}:{4}:{5}",
+                    this.timestamp.Year, this.timestamp.Month, this.timestamp.Day,
+                    this.timestamp.Hour, this.timestamp.Minute, this.timestamp.Second);
+            }
+        }           
+
+        public double SOG
+        {
+            get
+            {
+                return ((double)this.sog) / 10.0f;
+            }
+        }
+
+        public double COG
+        {
+            get
+            {
+                return ((double)this.cog) / 10.0f;
+            }
+        }
+
+        public int ROT
+        {
+            get
+            {
+                return (int)((double)(this.rot * this.rot) / 22.401289);
+            }
+        }
+
+        public double Latitude
+        {
+            get
+            {
+                return ((double)this.latitude) / 600000.0f;
+            }
+        }
+
+        public double Longitude
+        {
+            get
+            {
+                return ((double)this.longitude) / 600000.0f;
+            }
+        }
+
+
+        public string NavStatus
+        {
+            get { return GetNavStatus(this.navstatus); }
+        }
+
+        public DateTime Timestamp
+        {
+            get { return this.timestamp; }
+        }
+
+        public int? TrueHeading
+        {
+            get
+            {
+                if (this.trueheading == 511) return null;
+                return this.trueheading;
+            }
+        }
+
+        #endregion
+
+        #region static methods
+
+        public static string GetNavStatus(int navstatus)
+        {
+            switch (navstatus)
+            {
+                case 0:
+                    return "under way using engine";
+                case 1:
+                    return "at anchor";
+                case 2:
+                    return "not under command";
+                case 3:
+                    return "restricted manoeuvrability";
+                case 4:
+                    return "contrained by her draught";
+                case 5:
+                    return "moored";
+                case 6:
+                    return "aground";
+                case 7:
+                    return "engaged in fishing";
+                case 8:
+                    return "under way sailing";
+                case 9:
+                    return "reserved for future amendment of Navigational Status for HSC";
+                case 10:
+                    return "reserved for future amendment of Navigational Status for WIG";
+                case 11:
+                case 12:
+                case 13:
+                case 14:
+                    return "reserved for future use";
+                default:
+                    return "not defined";
+            }
+        }
+
+        #endregion
+
+        #region overrides
+
+        protected override Status Decode()
+        {
+            Status result = Status.OK;
+            BitArray bits = AIS.DecodeBinary(this.data);
+
+            try
+            {
+                this.userId = AIS.GetInt(bits, 8, 37);
+                this.navstatus = AIS.GetInt(bits, 38, 41);
+                this.rot = AIS.GetInt(bits, 42, 49);
+                this.sog = AIS.GetInt(bits, 50, 59);
+                this.accur = AIS.GetInt(bits, 60, 60);
+                this.longitude = AIS.GetInt(bits, 61, 88);
+                this.latitude = AIS.GetInt(bits, 89, 115);
+                this.cog = AIS.GetInt(bits, 116, 127);
+                this.trueheading = AIS.GetInt(bits, 128, 136);
+                this.utcTimeSecond = AIS.GetInt(bits, 137, 142);
+                this.reserved = AIS.GetInt(bits, 143, 146);
+                this.spare = AIS.GetInt(bits, 147, 147);
+                this.raim = AIS.GetInt(bits, 148, 148);
+                this.commstate = AIS.GetInt(bits, 149, 167);
+            }
+            catch (Exception e)
+            {
+                Trace.WriteLine(string.Format("Error decoding AIS pos report: {0}", e.Message));
+                result = Status.PARSE_ERROR;
+            }
+
+            this.timestamp = DateTime.Now;
+            return result;
+        }
+
+        public override string ToString()
+        {
+            return string.Format("{0} - MMSI {1}", base.ToString(), this.MMSI);
+        }
+
+        #endregion
+    }
+}

AIS/bsmd.AISService/AIS/AIS_QueueManager.cs

@@ -0,0 +1,218 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Timers;
+using System.Diagnostics;
+
+namespace bsmd.AISService.AIS
+{ 
+    /// <summary>
+    /// Hier laufen die Fäden zusammen. Diese Klasse enthält alle Objekte und kann direkt von
+    /// Konsolen / services und Windowsprogrammen verwendet werden
+    /// </summary>
+public class AIS_QueueManager
+    {
+
+        public delegate void AISQueueChangedHandler(AIS_Target target);
+        public event AISQueueChangedHandler AISQueueChanged;
+        public event AISQueueChangedHandler DBUpdateRequired;
+
+        private Dictionary<int, AIS_Target> activeTargets = new Dictionary<int, AIS_Target>();
+        private List<AIS_Target> activeTargetList = new List<AIS_Target>();
+        private List<AIS_Target> databaseTargets = new List<AIS_Target>();
+        private List<AIS_Target> watchkeeperTargets = new List<AIS_Target>();
+        private AIS_Configuration configuration;
+        private List<SerialDataHandler> serialHandlerList = new List<SerialDataHandler>();
+        private List<TelnetDataHandler> telnetHandlerList = new List<TelnetDataHandler>();
+        private List<AIS_Target> dbUpdateQueue = new List<AIS_Target>();
+        private Timer dbUpdateTimer = new Timer();
+        private bool isStarted = false;
+
+        #region Construction
+
+        public AIS_QueueManager(AIS_Configuration configuration, List<Serial_IO> serialIOs, List<AIS_Telnet> ais_Telnets)
+        {
+            this.configuration = configuration;
+
+            foreach (Serial_IO serialIO in serialIOs)
+            {                
+                AIS_Decoder decoder = new AIS_Decoder();
+                decoder.AISMessageReceived += new AIS_Decoder.AISMessageHandler(this.decoder_AISMessageReceived);
+                SerialDataHandler handler = new SerialDataHandler(serialIO, decoder);
+                this.serialHandlerList.Add(handler);
+            }
+
+            foreach (AIS_Telnet aisTelnet in ais_Telnets)
+            {                
+                AIS_Decoder decoder = new AIS_Decoder();
+                decoder.AISMessageReceived += new AIS_Decoder.AISMessageHandler(this.decoder_AISMessageReceived);
+                TelnetDataHandler tdn = new TelnetDataHandler(aisTelnet, decoder);
+                this.telnetHandlerList.Add(tdn);
+            }
+
+            AIS_Target.dbUpdateInterval = new TimeSpan(0, 0, configuration.DBMinPosReportTimeDifference);
+            this.dbUpdateTimer.Interval = configuration.DBUpdateInterval;
+            this.dbUpdateTimer.Elapsed += new ElapsedEventHandler(dbUpdateTimer_Elapsed);
+        }
+
+        #endregion
+
+        #region Properties
+
+        public List<AIS_Target> ActiveTargets
+        {
+            get
+            {
+                return this.activeTargetList;
+            }
+        }
+
+        public bool IsStarted
+        {
+            get { return this.isStarted; }
+        }
+
+        #endregion
+
+        #region event handler
+
+        void dbUpdateTimer_Elapsed(object sender, ElapsedEventArgs e)
+        {
+            while (this.dbUpdateQueue.Count > 0)
+            {
+                AIS_Target currentTarget = null;
+                lock (this.dbUpdateQueue)
+                {
+                    // Trace.WriteLine(string.Format("Update queue size: {0}", this.dbUpdateQueue.Count));
+                    currentTarget = this.dbUpdateQueue[0];
+                    this.dbUpdateQueue.RemoveAt(0);
+                }
+                this.OnDBUpdateRequired(currentTarget);                
+            }
+
+            // remove stale targets
+            lock (this.activeTargetList)
+            {
+                
+                for(int i=0;i<this.activeTargetList.Count; i++)
+                {
+                    if (!this.activeTargetList[i].LastUpdate.HasValue)
+                        continue;
+
+                    int diffmin = (int) (DateTime.Now - this.activeTargetList[i].LastUpdate.Value).TotalMinutes;
+
+                    if (diffmin > this.configuration.TargetStaleMins)
+                    {
+                        this.activeTargetList.RemoveAt(i);
+                        i--;
+                    }
+                }
+            }
+
+        }
+
+        void decoder_AISMessageReceived(AIS message)
+        {
+            lock (this.activeTargets)
+            {
+                // Trace.WriteLine(string.Format("Queue manager: AIS message received, queue size: {0}", activeTargets.Count));
+                if (!this.activeTargets.ContainsKey(message.MMSI))
+                {
+                    AIS_Target target = new AIS_Target(message.MMSI);
+                    this.activeTargets.Add(message.MMSI, target);
+                    lock (this.activeTargetList)
+                    {
+                        this.activeTargetList.Add(target);
+                    }
+                }
+
+                this.activeTargets[message.MMSI].Update(message);
+                this.OnAISQueueChanged(this.activeTargets[message.MMSI]);
+
+                if (this.activeTargets[message.MMSI].UpdateDB)
+                {
+                    lock (this.dbUpdateQueue)
+                    {
+                        if (!this.dbUpdateQueue.Contains(this.activeTargets[message.MMSI]))
+                            this.dbUpdateQueue.Add(this.activeTargets[message.MMSI]);
+                    }
+                }                
+            }
+        }
+
+        #endregion
+
+        #region public methods
+
+        public bool Start(ref string message)
+        {
+            bool retval = true;
+            if (this.isStarted)
+            {
+                message = "Queue manager already started";
+                return true;
+            }
+
+            foreach (SerialDataHandler sdh in this.serialHandlerList)
+            {
+                string messagePart = "";
+                retval &= sdh.Start(ref messagePart);
+                if (!retval)
+                    message += messagePart + Environment.NewLine;
+                if(retval) sdh.AIS_Decoder.Start();
+            }
+
+            foreach (TelnetDataHandler tdh in this.telnetHandlerList)
+            {
+                string messagePart = "";
+                retval &= tdh.Start(ref messagePart);
+                if (!retval)
+                    message += messagePart + Environment.NewLine;
+                if (retval) tdh.AIS_Decoder.Start();
+            }
+
+            if (retval) 
+                this.dbUpdateTimer.Start();
+
+            if (retval) this.isStarted = true;
+
+            return retval;
+        }
+
+        public void Stop()
+        {
+            if (this.isStarted)
+            {
+                foreach (SerialDataHandler sdh in this.serialHandlerList)
+                {
+                    sdh.Stop();
+                    sdh.AIS_Decoder.Stop();
+                }
+                foreach (TelnetDataHandler tdh in this.telnetHandlerList)
+                {
+                    tdh.Stop();
+                    tdh.AIS_Decoder.Stop();
+                }
+                this.dbUpdateTimer.Stop();
+                this.isStarted = false;
+            }
+        }
+
+        #endregion
+
+        #region OnEvent methods
+
+        protected void OnAISQueueChanged(AIS_Target target)
+        {
+            if (this.AISQueueChanged != null) this.AISQueueChanged(target);
+        }
+
+        protected void OnDBUpdateRequired(AIS_Target target)
+        {
+            if (this.DBUpdateRequired != null) this.DBUpdateRequired(target);
+        }
+
+        #endregion
+
+    }
+}

AIS/bsmd.AISService/AIS/AIS_StaticData.cs

@@ -0,0 +1,381 @@
+using System;
+using System.Collections;
+using System.Diagnostics;
+using System.Text;
+
+namespace bsmd.AISService.AIS
+{
+    public class AIS_StaticData : AIS
+    {
+        #region private members
+        
+        private int ais_version;
+        private int imoNumber;
+        private string callsign;
+        private string name;
+        private int shiptype;
+        private int dimension;
+        private int a;
+        private int b;
+        private int c;
+        private int d;
+
+        private int typeofdevice;
+        private int etamonth;
+        private int etaday;
+        private int etahour;
+        private int etaminute;
+        private DateTime? eta;
+
+        private int maxpresetstaticdraught;
+        private string destination;
+        private int dte;
+        private int spare;
+
+        #endregion
+
+        #region Properties        
+
+        public int ShipTypeVal { get { return this.shiptype; } }
+
+        public string Callsign
+        {
+            get { return this.callsign; }
+        }
+
+        public string Name
+        {
+            get { return this.name; }
+        }
+
+        public DateTime? ETA
+        {
+            get { return this.eta; }
+        }
+
+        public string Destination
+        {
+            get { return this.destination; }
+        }   
+
+        public int IMONumber
+        {
+            get { return this.imoNumber; }
+        }
+
+        public string DeviceName
+        {
+            get
+            {
+                switch (typeofdevice)
+                {
+                    case 1:
+                        return "GPS";                        
+                    case 2:
+                        return "GLONASS";                        
+                    case 3:
+                        return "Combined GPS/GLONASS";                        
+                    case 4:
+                        return "Loran-C";                        
+                    case 5:
+                        return "Chayka";
+                    case 6:
+                        return "Integrated Navigation System";                        
+                    case 7:
+                        return "surveyed";                        
+                    case 8:
+                        return "Galileo";                        
+                    default:
+                        return "undefined";
+                }
+            }
+        }
+
+        public int Draught
+        {
+            get { return this.maxpresetstaticdraught; }
+        }
+
+        public int Breadth
+        {
+            get
+            {
+                return this.c + this.d;
+            }
+        }
+
+        public int Length
+        {
+            get
+            {
+                return this.a + this.b;
+            }
+        }
+
+        public string ShipType
+        {
+            get
+            {
+                return AIS_StaticData.GetShipType(this.shiptype);
+            }
+        }
+
+        public string DBETA
+        {
+            get
+            {
+                if (this.eta.HasValue)
+                {
+                    return string.Format("{0}-{1}-{2} {3}:{4}:{5}",
+                        this.eta.Value.Year, this.eta.Value.Month, this.eta.Value.Day,
+                        this.eta.Value.Hour, this.eta.Value.Minute, this.eta.Value.Second);
+                }
+                else
+                    return "";
+            }
+        }
+
+
+        #endregion
+
+        #region abstract method implementation
+
+        protected override Status Decode()
+        {
+            BitArray bits = AIS.DecodeBinary(this.data);
+            Status result = Status.OK;
+            
+
+            try
+            {
+                int type = AIS.GetInt(bits, 0, 5);
+                if (type != 5)
+                {
+                    result = Status.ILLEGAL_ARGUMENT;
+                }
+                else
+                {
+                    this.userId = AIS.GetInt(bits, 6, 37);
+                    this.ais_version = AIS.GetInt(bits, 38, 39);
+                    this.imoNumber = AIS.GetInt(bits, 40, 69);
+
+                    StringBuilder sb_callsign = new StringBuilder(7);
+                    for (int i = 0; i < 7; i++)
+                    {
+                        int cval = AIS.GetInt(bits, 70 + (6 * i), 75 + (6 * i));
+                        char ch = AIS.GetAISChar(cval);
+                        if (ch == '@') ch = ' ';
+                        sb_callsign.Append(ch);
+                    }
+                    this.callsign = sb_callsign.ToString().Trim();
+
+                    StringBuilder sb_name = new StringBuilder(20);
+                    for (int i = 0; i < 20; i++)
+                    {                        
+                        int cval = AIS.GetInt(bits, 112 + (6 * i), 117 + (6 * i));
+                        char ch = AIS.GetAISChar(cval);
+                        if (ch == '@') ch = ' ';
+                        sb_name.Append(ch);
+                    }
+                    this.name = sb_name.ToString().Trim();
+
+                    this.shiptype = AIS.GetInt(bits, 232, 239);
+                    this.dimension = AIS.GetInt(bits, 240, 269);
+                    this.a = AIS.GetInt(bits, 240, 248);
+                    this.b = AIS.GetInt(bits, 249, 257);
+                    this.c = AIS.GetInt(bits, 258, 263);
+                    this.d = AIS.GetInt(bits, 264, 269);
+                    this.typeofdevice = AIS.GetInt(bits, 270, 273);
+                    this.etamonth = AIS.GetInt(bits, 274, 277);
+                    this.etaday = AIS.GetInt(bits, 278, 282);
+                    this.etahour = AIS.GetInt(bits, 283, 287);
+                    this.etaminute = AIS.GetInt(bits, 288, 293);
+                    try
+                    {
+                        if ((this.etahour < 24) && (this.etaday > 0) && (this.etaminute < 60) && (this.etamonth > 0))
+                        {
+                            this.eta = new DateTime(DateTime.Now.Year, this.etamonth, this.etaday, this.etahour, this.etaminute, 0);
+                        }
+                    }
+                    catch(Exception) { 
+                        Trace.WriteLine("ERROR creating ETA timestamp");
+                    }
+                    this.maxpresetstaticdraught = AIS.GetInt(bits, 294, 301);
+
+                    StringBuilder sb_destination = new StringBuilder(20);
+                    for (int i = 0; i < 20; i++)
+                    {
+                        int cval = AIS.GetInt(bits, 302 + (6 * i), 307 + (6 * i));
+                        char ch = AIS.GetAISChar(cval);
+                        if (ch == '@') ch = ' ';
+                        sb_destination.Append(ch);
+                    }
+                    this.destination = sb_destination.ToString().Trim();
+
+                    this.dte = AIS.GetInt(bits, 422, 422);
+                    this.spare = AIS.GetInt(bits, 423, 423);
+
+                }
+            }
+            catch (Exception e)
+            {
+                Trace.WriteLine(string.Format("Error decoding AIS static data: {0}", e.Message));
+                result = Status.PARSE_ERROR;
+            }
+            return result;
+        }
+
+        public override string ToString()
+        {
+            return string.Format("{0} - {1} [{2}]", base.ToString(), this.MMSI, this.Name);
+        }
+
+        #endregion
+
+        #region public static methods
+
+        public static AIS_Target.Type GetShipTypeSimple(int shiptype)
+        {
+            switch (shiptype)
+            {
+                case 50:
+                case 51:
+                case 52:
+                case 53:
+                case 54:
+                case 55:
+                case 56:
+                case 57:
+                    return AIS_Target.Type.TUG;
+                default:
+                    int d1 = shiptype / 10;
+                    switch (d1)
+                    {
+                        case 2:
+                            return AIS_Target.Type.WIG;
+                        case 3:
+                            return AIS_Target.Type.OTHER;
+                        case 4:
+                            return AIS_Target.Type.HSC;
+                        case 6:
+                            return AIS_Target.Type.PASSENGER;
+                        case 7:
+                            return AIS_Target.Type.CARGO;
+                        case 8:
+                            return AIS_Target.Type.TANKER;                        
+                    }
+                    return AIS_Target.Type.OTHER;                    
+            }
+        }
+
+        public static string GetShipType(int shiptype)
+        {
+            if (shiptype > 199) return "preserved for future use";
+            if (shiptype > 99) return "preserved for regional use";
+            int dig1, dig2;
+            switch (shiptype)
+            {
+                case 50:
+                    return "Pilot vessel";
+                case 51:
+                    return "SAR vessel";
+                case 52:
+                    return "Tug";
+                case 53:
+                    return "Port tender";
+                case 54:
+                    return "Vessel with anti-pollution facility or equipment";
+                case 55:
+                    return "Law enforcment vessel";
+                case 56:
+                    return "Spare [local vessel]";
+                case 57:
+                    return "Spare [local vessel]";
+                case 58:
+                    return "Medical transport";
+                case 59:
+                    return "Ship according to Resolution No. 18 (Mob-83)";
+                default:
+                    {
+                        string comb = "";
+                        dig1 = shiptype / 10;
+                        dig2 = shiptype % 10;
+                        switch (dig1)
+                        {
+                            case 1:
+                                comb += "reserved for future use";
+                                break;
+                            case 2:
+                                comb += "WIG";
+                                break;
+                            case 3:
+                                comb += "Vessel";
+                                switch (dig2)
+                                {
+                                    case 0:
+                                        comb += " Fishing"; break;
+                                    case 1:
+                                        comb += " Towing"; break;
+                                    case 2:
+                                        comb += " Towing and length of tow exceeds 200m or breadth exceeds 25m"; break;
+                                    case 3:
+                                        comb += " Engaged in dredging or underwater operations"; break;
+                                    case 4:
+                                        comb += " Engaged in diving operations"; break;
+                                    case 5:
+                                        comb += " Engaged in military operations"; break;
+                                    case 6:
+                                        comb += " Sailing"; break;
+                                    case 7:
+                                        comb += " Pleasure craft"; break;
+                                    default:
+                                        comb += " reserved for future use";
+                                        break;
+                                }
+                                return comb;
+                            case 4:
+                                comb += "HSC";
+                                break;
+                            case 6:
+                                comb += "Passenger ship";
+                                break;
+                            case 7:
+                                comb += "Cargo ship";
+                                break;
+                            case 8:
+                                comb += "Tanker";
+                                break;
+                            default:
+                            case 9:
+                                comb += "other";
+                                break;
+                        }
+                        switch (dig2)
+                        {
+                            case 0: break;
+                            case 1:
+                                comb += " carrying DG, HS or MP IMO hazard or pollutant category A"; break;
+                            case 2:
+                                comb += " carrying DG, HS or MP IMO hazard or pollutant category B"; break;
+                            case 3:
+                                comb += " carrying DG, HS or MP IMO hazard or pollutant category C"; break;
+                            case 4:
+                                comb += " carrying DG, HS or MP IMO hazard or pollutant category D"; break;
+                            case 5:
+                            case 6:
+                            case 7:
+                            case 8:
+                                comb += " reserved for future use"; break;
+                            case 9:
+                                comb += " no additional information"; break;
+                        }
+                        return comb;
+                    }
+            }
+        }
+
+
+        #endregion
+
+    }
+}

AIS/bsmd.AISService/AIS/AIS_Target.cs

@@ -0,0 +1,327 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace bsmd.AISService.AIS
+{
+    public class AIS_Target
+    {
+
+        #region private members
+
+        public static TimeSpan dbUpdateInterval = new TimeSpan(0, 2, 0); // neue Position in DB schreiben (min Interval)
+        private int mmsi;
+        private bool isClassB = false;
+        private bool? isWatchkeeper = null;        
+        private DateTime? lastUpdate;
+        private bool updateDB = false;
+        private string name;
+        private string station;
+        private string lastDBName;
+        private string callSign;
+        private bool selected = false;
+
+        private AIS staticInfo;
+        private AIS posReport;
+        private AIS lastAdditionalData;        
+
+        private AIS_Target.Type type = Type.OTHER;
+        private AIS_Target.NavStatus navStatus = AIS_Target.NavStatus.UNKNOWN;
+
+        #endregion
+
+        #region public defs
+
+        
+
+        public enum Type
+        {
+            PASSENGER,
+            CARGO,
+            TANKER,
+            HSC,
+            WIG,
+            TUG,
+            YACHT,
+            OTHER
+        }
+
+        /// <summary>
+        /// vereinfacht
+        /// </summary>
+        public enum NavStatus
+        {
+            UNKNOWN,
+            UNDERWAY,
+            MOORED
+        }
+
+        #endregion
+
+        #region Construction
+
+        public AIS_Target(int mmsi)
+        {
+            this.mmsi = mmsi;
+        }
+
+        #endregion
+
+        #region Properties        
+
+        public bool UpdateDB
+        {
+            get { return this.updateDB; }
+            set { this.updateDB = value; }
+        }
+
+        public int MMSI
+        {
+            get { return this.mmsi; }
+        }
+
+        public DateTime? LastUpdate
+        {
+            get { return this.lastUpdate; }
+        }
+
+        public string Name
+        {
+            get {
+                if ((this.name == null) || (this.name.Length == 0))
+                    return this.LastDBName;
+                return this.name; 
+            }
+            set { this.name = value; }
+        }
+
+        public string Callsign
+        {
+            get { return this.callSign; }
+            set { this.callSign = value; }
+        }
+
+        public string LastDBName
+        {
+            get { return this.lastDBName; }
+            set { this.lastDBName = value; }
+        }
+
+        public string ReceivedFrom
+        {
+            get { return this.station; }            
+        }
+
+        public AIS LastPosReport
+        {
+            get { return this.posReport; }
+        }
+
+        public AIS LastStaticData
+        {
+            get { return this.staticInfo; }
+        }
+
+        public double? Latitude
+        {
+            get
+            {
+                if (this.LastPosReport == null) return null;
+                if (this.LastPosReport is AIS_PosReport)
+                    return ((AIS_PosReport)this.LastPosReport).Latitude;
+                if (this.LastPosReport is AIS_ClassB)
+                    return ((AIS_ClassB)this.LastPosReport).Latitude;
+                if (this.LastPosReport is AIS_ClassBExt)
+                    return ((AIS_ClassBExt)this.LastPosReport).Latitude;
+                return null;
+            }
+        }
+
+        public Type TargetType
+        {
+            get { return this.type; }
+            set { this.type = value; }
+        }
+
+        public NavStatus TargetNavStatus
+        {
+            get { return this.navStatus; }
+        }
+
+        public double? Longitude
+        {
+            get
+            {
+                if (this.LastPosReport == null) return null;
+                if (this.LastPosReport is AIS_PosReport)
+                    return ((AIS_PosReport)this.LastPosReport).Longitude;
+                if (this.LastPosReport is AIS_ClassB)
+                    return ((AIS_ClassB)this.LastPosReport).Longitude;
+                if (this.LastPosReport is AIS_ClassBExt)
+                    return ((AIS_ClassBExt)this.LastPosReport).Longitude;
+                return null;
+            }
+        }
+
+        public bool? IsClassB
+        {
+            get
+            {
+                return this.isClassB;                
+            }
+        }
+
+        public int? Heading
+        {
+            get
+            {
+                if (this.LastPosReport == null) return null;
+                if (this.LastPosReport is AIS_PosReport)
+                    return ((AIS_PosReport)this.LastPosReport).TrueHeading;
+                if (this.LastPosReport is AIS_ClassB)
+                    return ((AIS_ClassB)this.LastPosReport).TrueHeading;
+                if (this.LastPosReport is AIS_ClassBExt)
+                    return ((AIS_ClassBExt)this.LastPosReport).TrueHeading;
+                return null;
+            }
+        }
+
+        public int? COG
+        {
+            get
+            {
+                if (this.LastPosReport == null) return null;
+                if (this.LastPosReport is AIS_PosReport)
+                    return (int)((AIS_PosReport)this.LastPosReport).COG;
+                if (this.LastPosReport is AIS_ClassB)
+                    return (int)((AIS_ClassB)this.LastPosReport).Cog;
+                if (this.LastPosReport is AIS_ClassBExt)
+                    return (int) ((AIS_ClassBExt)this.LastPosReport).Cog;
+                return null;
+            }
+        }
+
+        public bool? IsWatchkeeperShip
+        {
+            get { return this.isWatchkeeper; }
+            set { this.isWatchkeeper = value; }
+        }
+
+        public bool Selected
+        {
+            get { return this.selected; }
+            set { this.selected = value; }
+        }
+
+        public string Station
+        {
+            get { return this.station; }
+            set { this.station = value; }
+        }
+
+        #endregion
+
+        #region public methods       
+
+        public static AIS_Target.NavStatus GetCurrentNavstatus(int status)
+        {
+            AIS_Target.NavStatus result = NavStatus.UNKNOWN;
+            switch (status)
+            {
+                case 0:
+                case 8:
+                    result = NavStatus.UNDERWAY;
+                    break;
+                default:
+                    result = NavStatus.MOORED;
+                    break;
+            }
+            return result;
+        }
+
+        public void Update(AIS message)
+        {
+            this.station = message.Station;
+
+            switch (message.MessageType)
+            {
+                case AIS.AISType.POSITION_REPORT:
+                case AIS.AISType.POSITION_REPORT_ASSIGNED:
+                case AIS.AISType.POSITION_REPORT_SPECIAL:                
+                    if ((this.lastUpdate.HasValue &&
+                        (((AIS_PosReport)message).Timestamp - this.lastUpdate.Value) > AIS_Target.dbUpdateInterval)
+                        || (!this.lastUpdate.HasValue))
+                    {
+                        this.updateDB = true;
+                        this.lastUpdate = ((AIS_PosReport)message).Timestamp;
+                    }
+                    this.posReport = message;
+                    this.navStatus = AIS_Target.GetCurrentNavstatus(((AIS_PosReport)message).NavStatusVal);
+                    // System.Diagnostics.Trace.WriteLine(string.Format("pos report at {0}", this.lastUpdate));
+                    break;
+                case AIS.AISType.POSITION_REPORT_B_EQUIP:
+                    if ((this.lastUpdate.HasValue &&
+                        (((AIS_ClassB)message).Timestamp - this.lastUpdate.Value) > AIS_Target.dbUpdateInterval)
+                        || (!this.lastUpdate.HasValue))
+                    {
+                        this.updateDB = true;
+                        this.lastUpdate = ((AIS_ClassB)message).Timestamp;
+                        this.isClassB = true;
+                        this.type = Type.YACHT;
+                        this.navStatus = NavStatus.UNDERWAY;
+                    }
+                    this.posReport = message;                    
+                    break;
+                case AIS.AISType.POSITION_REPORT_B_EQUIP_EXT:
+                    if ((this.lastUpdate.HasValue &&
+                        (((AIS_ClassBExt)message).Timestamp - this.lastUpdate.Value) > AIS_Target.dbUpdateInterval)
+                        || (!this.lastUpdate.HasValue))
+                    {
+                        this.updateDB = true;
+                        this.lastUpdate = ((AIS_ClassBExt)message).Timestamp;
+                        this.isClassB = true;
+                        this.type = Type.YACHT;
+                        this.navStatus = NavStatus.UNDERWAY;
+                    }                    
+                    this.posReport = message;
+                    break;                    
+                case AIS.AISType.STATIC_VOYAGE_DATA:
+                    this.staticInfo = message;
+                    this.name = ((AIS_StaticData)message).Name;
+                    this.callSign = ((AIS_StaticData)message).Callsign;
+                    this.type = AIS_StaticData.GetShipTypeSimple(((AIS_StaticData)message).ShipTypeVal);                   
+
+                    break;
+                case AIS.AISType.CLASS_B_STATIC_DATA:
+                    if (((AIS_ClassBStatic)message).IsPartA)
+                    {
+                        this.name = ((AIS_ClassBStatic)message).Name;
+                    }
+                    else
+                    {
+                        this.callSign = ((AIS_ClassBStatic)message).Callsign;                        
+                    }
+                    this.staticInfo = message;                                        
+                    this.type = Type.YACHT;
+                    this.isClassB = true;                    
+                    break;
+                default:
+                    this.lastAdditionalData = message;
+                    break;
+            }            
+
+        }
+
+        #endregion
+
+        #region overrides
+
+        public override string ToString()
+        {
+            return string.Format("{0} [{1}]", this.Name, this.MMSI);
+        }
+
+        #endregion
+
+    }
+}

AIS/bsmd.AISService/AIS/AIS_Target_Comparer.cs

@@ -0,0 +1,104 @@
+using System;
+using System.ComponentModel;
+using System.Collections.Generic;
+using System.Text;
+
+namespace bsmd.AISService.AIS
+{
+    public class AIS_Target_Comparer : IComparer<AIS_Target>
+    {
+        private SortPropertyEnum sortProperty = SortPropertyEnum.NAME;
+        private ListSortDirection sortDirection = ListSortDirection.Ascending;
+
+        public enum SortPropertyEnum
+        {
+            NONE,
+            MMSI,
+            NAME,
+            CALLSIGN,
+            LASTUPDATE,
+            STATION
+        }
+
+        #region Properties
+
+        public ListSortDirection SortDirection
+        {
+            get { return this.sortDirection; }
+            set { this.sortDirection = value; }
+        }
+
+        public SortPropertyEnum SortProperty
+        {
+            get { return this.sortProperty; }
+            set { this.sortProperty = value; }
+        }
+
+        #endregion
+
+
+        #region IComparer<AIS_Target> Members
+
+        public int Compare(AIS_Target x, AIS_Target y)
+        {
+            switch (this.sortProperty)
+            {
+                case SortPropertyEnum.NONE:
+                    return 0;
+                case SortPropertyEnum.NAME:
+                    {
+                        string xName = x.LastDBName;
+                        if (xName == null) xName = "";
+                        string yName = y.LastDBName;
+                        if (yName == null) yName = "";
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return xName.CompareTo(yName);
+                        else
+                            return yName.CompareTo(xName);
+                    }
+                case SortPropertyEnum.CALLSIGN:
+                    {
+                        string xCallsign = x.Callsign;
+                        if (xCallsign == null) xCallsign = "";
+                        string yCallsign = y.Callsign;
+                        if (yCallsign == null) yCallsign = "";
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return xCallsign.CompareTo(yCallsign);
+                        else
+                            return yCallsign.CompareTo(xCallsign);
+                    }
+                case SortPropertyEnum.LASTUPDATE:
+                    {
+                        DateTime xTime = x.LastUpdate ?? DateTime.MinValue;
+                        DateTime yTime = y.LastUpdate ?? DateTime.MinValue;
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return xTime.CompareTo(yTime);
+                        else
+                            return yTime.CompareTo(xTime);
+                    }
+                case SortPropertyEnum.MMSI:
+                    {
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return x.MMSI.CompareTo(y.MMSI);
+                        else
+                            return y.MMSI.CompareTo(x.MMSI);
+                    }
+                case SortPropertyEnum.STATION:
+                    {
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return x.ReceivedFrom.CompareTo(y.ReceivedFrom);
+                        else
+                            return y.ReceivedFrom.CompareTo(x.ReceivedFrom);
+                    }
+                    
+                default:
+                    return 0;
+            }
+
+
+
+        }
+
+        #endregion
+    }
+}

AIS/bsmd.AISService/AIS/AIS_Telnet.cs

@@ -0,0 +1,150 @@
+//
+//  Class:			AIS_Telnet
+//	Current CLR:	4.0.30319.296
+//	System:			Microsoft Visual Studio 10.0
+//	Author:			dani
+// 	Created:		3/16/2013 12:58:03 PM
+//
+//	Copyright (c) 2013 Informatikbüro Daniel Schick. All rights reserved.
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using System.Net.Sockets;
+
+namespace bsmd.AISService.AIS
+{
+    public class AIS_Telnet
+    {
+
+        #region private fields
+
+        private const int BFSIZE = 1024;
+
+        private NetworkStream tcpStream;
+        private TcpClient tcpSocket;
+        private string currentString = "";
+        private string hostname;
+        private int port;
+        private DateTime? lastRead;
+
+        #endregion
+
+        public AIS_Telnet(string theHostname, int thePort)
+        {
+            this.port = thePort;
+            this.hostname = theHostname;
+            this.Connect();            
+        }
+
+        #region Properties
+
+        public bool IsConnected
+        {
+            get { return tcpSocket.Connected; }
+        }
+
+        public string Hostname { get { return this.hostname; } }
+
+        public int Port { get { return this.port; } }
+
+        public string StationName { get; set; }
+
+        #endregion
+
+        #region public methods
+
+        private string ReadCurrentUptoNewline()
+        {
+            int newlineIndex = currentString.IndexOf('\n');
+            string result = this.currentString.Substring(0, newlineIndex);
+            if (currentString.Length > (newlineIndex + 1))
+                currentString = currentString.Substring(newlineIndex + 1);
+            else
+                currentString = "";
+            return result;
+        }
+
+        public string ReadLine()
+        {
+
+            string result = "";
+            if (currentString.IndexOf('\n') >= 0)
+                return ReadCurrentUptoNewline();
+
+
+            byte[] inputBuffer = new byte[1024];
+
+            if ((tcpSocket == null) || (!tcpSocket.Connected) || !this.tcpStream.CanRead)
+                this.Connect();
+            if ((tcpSocket == null) || !tcpSocket.Connected)
+            {
+                System.Threading.Thread.Sleep(30000); // wait 5 mins if connect is unsuccessful
+                return result;
+            }
+            if (this.tcpStream.DataAvailable)
+            {
+                try
+                {
+                    int bytesRead = this.tcpStream.Read(inputBuffer, 0, 1024);
+                    if (bytesRead > 0)
+                    {
+                        this.lastRead = DateTime.Now;
+                        this.currentString += Encoding.ASCII.GetString(inputBuffer, 0, bytesRead);
+                        if (currentString.IndexOf('\n') >= 0)
+                            return ReadCurrentUptoNewline();
+                        if (this.currentString.Length > 1024) this.currentString = ""; // truncate to avoid overflow for wrong client data flow
+                    }
+                }
+                catch (Exception ex)
+                {
+                    System.Diagnostics.Trace.WriteLine(string.Format("exception reading from tcp stream: {0}", ex.Message));
+                    result = "";
+                }
+            }
+            else
+            {
+                // wenn die Verbindung wegkracht ist immer noch connected true, aber DataAvailable false
+                // es gibt anscheinend keinen richtig guten Workaround. Hard case: Nach einer Stunde Inaktivität schließt der Client hier die
+                // Verbindung und versucht reconnects. Das bekommt der LS100PortProxy aber nicht immer mit.. Folge sind dann die "stehengebliebenen"
+                // Verbindungen
+                if (lastRead == null) lastRead = DateTime.Now;
+                if ((DateTime.Now - lastRead.Value).TotalSeconds > 600)
+                {
+                    this.tcpSocket.Close();
+                    this.tcpSocket = null;
+                    System.Diagnostics.Trace.WriteLine("closing inactive TcpClient");
+                    this.lastRead = DateTime.Now; // reset timer
+                }
+            }
+
+            return result;
+        }
+
+        public void Close()
+        {
+            if (this.tcpStream != null) this.tcpStream.Close();
+            this.tcpSocket.Close();    
+            this.tcpStream.Dispose();
+        }
+
+        #endregion                
+
+        public void Connect()
+        {
+            try
+            {
+                if ((this.tcpSocket != null) && (this.tcpSocket.Connected)) return;
+                this.tcpSocket = new TcpClient(this.hostname, this.port);
+                this.tcpStream = tcpSocket.GetStream();                             
+                System.Diagnostics.Trace.WriteLine(string.Format("TCP stream connected ({0}:{1})", this.hostname, this.port));
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Trace.WriteLine(
+                    string.Format("AIS_Telnet: cannot connect to ({0}:{1}) : {2}", this.hostname, this.port, ex.Message));
+            }
+        }
+    }
+}

AIS/bsmd.AISService/AIS/NMEA.cs

@@ -0,0 +1,116 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace bsmd.AISService.AIS
+{
+    internal abstract class NMEA
+    {
+        protected string type = "";
+        protected string data;
+        protected string[] elements = null;        
+
+        public enum Status
+        {
+            OK,
+            UNKNOWN_TYPE,
+            CHECKSUM,
+            ILLEGAL_ARGUMENT
+        }
+
+        protected abstract void Decode();
+
+        public static NMEA Decode(string data, ref Status status)
+        {
+            try
+            {
+                if (data == null)
+                {
+                    status = Status.ILLEGAL_ARGUMENT;
+                    return null;
+                }
+
+                if (data[0] != '$' && data[0] != '!')
+                {
+                    status = Status.ILLEGAL_ARGUMENT;
+                    return null; // no NMEA sentence
+                }
+
+                string[] elements = data.Trim().Substring(1).Split(',');
+
+                NMEA sentence = NMEA.CreateNMEAElement(elements[0]);
+                if (sentence == null)
+                {
+                    status = Status.UNKNOWN_TYPE;
+                    return null;
+                }
+
+                sentence.elements = elements;
+                sentence.data = data.Trim(); ;
+
+                if (!sentence.IsChecksumOK)
+                {
+                    status = Status.CHECKSUM;
+                    return null;
+                }
+
+                sentence.Decode();
+
+                return sentence;
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Trace.WriteLine(string.Format("Error decoding sentence: {0}, {1}", ex.Message, ex.StackTrace));
+                return null;
+            }                
+        }
+
+        /// <summary>
+        /// Factory method for nmea types
+        /// </summary>
+        protected static NMEA CreateNMEAElement(string type)
+        {
+            NMEA result = null;
+
+            switch (type.ToUpper())
+            {
+                case "AIVDM":
+                    result = new NMEA_AIS_Sentence();
+                    break;
+
+                case "PNMLS":
+                    result = new NMEA_PNMLS_Sentence();
+                    break;
+
+                default:
+                    break;
+            }
+
+            if (result != null)
+                result.type = type.ToUpper();
+
+            return result;
+        }
+
+        protected bool IsChecksumOK
+        {
+            get
+            {
+                return this.data.Substring(this.data.IndexOf('*') + 1) == this.CalculateChecksum();
+
+            }
+        }
+
+        private string CalculateChecksum()
+        {
+            int checksum = Convert.ToByte(this.data[1]);
+            for (int i = 2; i < this.data.IndexOf('*'); i++)
+            {
+                checksum ^= Convert.ToByte(this.data[i]);
+            }
+            return checksum.ToString("X2");
+        }
+
+
+    }
+}

AIS/bsmd.AISService/AIS/NMEA_AIS_Sentence.cs

@@ -0,0 +1,86 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace bsmd.AISService.AIS
+{
+    internal class NMEA_AIS_Sentence : NMEA
+    {
+        private int total_sentence_nr;
+        private int msg_sentence_nr;
+        private int? seq_message_ident;
+        private string ais_channel_nr;
+        private string ais_message;
+        private int fillbits;
+
+        #region Properties
+
+        /// <summary>
+        /// 1-based total number of sentences for this ais message
+        /// </summary>
+        public int Total_Sentence_Nr
+        {
+            get { return this.total_sentence_nr; }
+        }
+
+        /// <summary>
+        /// 1-based fragment number of sentences
+        /// </summary>
+        public int Msg_Sentence_Nr
+        {
+            get { return this.msg_sentence_nr; }
+        }
+
+        /// <summary>
+        /// sequential message id for multi-sentence messages (can be empty)
+        /// </summary>
+        public int? Seq_Message_Ident
+        {
+            get { return this.seq_message_ident; }
+        }
+
+        /// <summary>
+        /// 'A' = 161.975Mhz (87B),
+        /// 'B' = 162.025Mhz (88B)
+        /// </summary>
+        public string AIS_Channel_nr
+        {
+            get { return this.ais_channel_nr; }
+        }
+
+        /// <summary>
+        /// AIS message data
+        /// </summary>
+        public string AIS_Message
+        {
+            get { return this.ais_message; }
+        }
+
+        public int FillBits
+        {
+            get { return this.fillbits; }
+        }            
+
+        #endregion
+
+        protected override void Decode()
+        {
+            this.total_sentence_nr = Convert.ToInt32(this.elements[1]);
+            this.msg_sentence_nr = Convert.ToInt32(this.elements[2]);
+            if (this.elements[3].Length > 0)
+                this.seq_message_ident = Convert.ToInt32(this.elements[3]);
+            this.ais_channel_nr = this.elements[4];
+            this.ais_message = this.elements[5];
+            try
+            {
+                string fillbits_string = this.elements[6].Substring(0, this.elements[6].IndexOf('*'));
+                if(!Int32.TryParse(fillbits_string, out this.fillbits))
+                    System.Diagnostics.Trace.WriteLine("AIS_Sentence.Decode(): fillbits are no integer");                
+            }
+            catch (ArgumentOutOfRangeException)
+            {
+                System.Diagnostics.Trace.WriteLine("AIS_Sentence.Decode(): split() problem, trouble decoding fillbits");
+            }
+        }
+    }
+}

AIS/bsmd.AISService/AIS/NMEA_PNMLS_Sentence.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Diagnostics;
+
+namespace bsmd.AISService.AIS
+{
+    /// <summary>
+    /// NMEA PNMLS sentence
+    /// sentence shows signal level for preceding message
+    /// </summary>
+    class NMEA_PNMLS_Sentence : NMEA
+    {
+        private int signal_level;
+        private int detection_threshold;
+        private int interval;
+
+        #region Properties
+
+        public int Signal_Level
+        {
+            get { return this.signal_level; }
+        }
+
+        public int Detection_Threshold
+        {
+            get { return this.detection_threshold; }
+        }
+
+        public int Interval
+        {
+            get { return this.interval; }
+        }
+
+        #endregion
+
+        #region decode func
+
+        protected override void Decode()
+        {
+            try
+            {
+                this.signal_level = Convert.ToInt32(this.elements[1]);
+                this.detection_threshold = Convert.ToInt32(this.elements[2]);
+
+                string interval_string = this.elements[3].Substring(0, this.elements[3].IndexOf('*'));
+                this.interval = Convert.ToInt32(interval_string);
+            }
+            catch (FormatException)
+            {
+                Trace.WriteLine("NMEA [PNMLS] input format error");
+            }
+        }
+
+        #endregion
+
+    }
+}

AIS/bsmd.AISService/AIS/SerialDataHandler.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Diagnostics;
+
+namespace bsmd.AISService.AIS
+{
+    public class SerialDataHandler
+    {
+        private Serial_IO serial_IO;        
+        private AIS_Decoder decoder;
+
+        public SerialDataHandler(Serial_IO io, AIS_Decoder decoder)
+        {
+            this.serial_IO = io;
+            this.decoder = decoder;
+            this.serial_IO.LineRead += new Serial_IO.LineReadHandler(serial_IO_LineRead);
+        }
+
+        public Serial_IO Serial_IO
+        {
+            get { return this.serial_IO; }
+        }
+
+        public AIS_Decoder AIS_Decoder
+        {
+            get { return this.decoder; }
+        }
+
+        public bool Start(ref string message)
+        {
+            return this.serial_IO.Open(ref message);
+        }
+
+        public void Stop()
+        {
+            this.serial_IO.Close();
+        }
+
+        protected void serial_IO_LineRead(string data)
+        {
+            NMEA.Status nmea_Status = NMEA.Status.OK;
+            if (data == null || data.Length == 0) return;
+
+            NMEA decodedSentence = NMEA.Decode(data, ref nmea_Status);
+            if (decodedSentence != null)
+            {
+                if (decodedSentence is NMEA_AIS_Sentence)
+                {
+                    NMEA_AIS_Sentence aisSentence = decodedSentence as NMEA_AIS_Sentence;
+                    this.decoder.Decode(aisSentence.AIS_Message, aisSentence.Msg_Sentence_Nr,
+                        aisSentence.Total_Sentence_Nr, aisSentence.Seq_Message_Ident, this.Serial_IO.StationName);
+                }
+            }
+            else
+            {                
+                Trace.WriteLine("Serial data handler: NMEA decoder returned null sentence");
+            }
+        }
+
+        public override string ToString()
+        {
+            return string.Format("Serial AIS Receiver {0} on {1}", 
+                this.serial_IO.StationName,
+                this.serial_IO.ComPort);
+        }
+
+    }
+}

AIS/bsmd.AISService/AIS/Serial_IO.cs

@@ -0,0 +1,117 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO.Ports;
+using System.Threading;
+
+namespace bsmd.AISService.AIS
+{
+    public class Serial_IO
+    {
+        #region private fields
+        private string stationName;
+        private SerialPort port;
+        private bool runReader = true;        
+        private Thread readerThread = null;
+        #endregion
+
+        // event fired if input line is available
+        public delegate void LineReadHandler(string data);
+        public event LineReadHandler LineRead;
+
+
+        public Serial_IO()
+        {            
+            this.port = new SerialPort();
+        }
+        
+        public bool Open(ref string message)
+        {
+            bool retval = true;
+            try
+            {
+                this.port.Open();
+            }
+            catch (Exception ex)
+            {
+                message = ex.Message;
+                retval = false;
+            }
+            if (retval)
+            {
+                this.readerThread = new Thread(new ThreadStart(this.Read));
+                this.runReader = true;
+                this.readerThread.Start();
+            }
+            return retval;
+        }
+
+        public void Close()
+        {
+            this.runReader = false;
+            if(readerThread != null)
+                if(readerThread.ThreadState == ThreadState.Running)
+                    this.readerThread.Join();
+            if (this.port.IsOpen)
+            {
+                this.port.BaseStream.Flush();
+                this.port.Close();
+            }
+        }
+
+        public string[] GetComPorts()
+        {            
+            return SerialPort.GetPortNames();
+        }
+
+        #region Properties
+
+        public int BaudRate
+        {
+            get { return this.port.BaudRate; }
+            set { this.port.BaudRate = value; }
+        }
+
+        public string ComPort
+        {
+            get { return this.port.PortName; }
+            set { this.port.PortName = value; }
+        }
+
+        public string StationName
+        {
+            get { return this.stationName; }
+            set { this.stationName = value; }
+        }
+
+        #endregion
+
+        #region protected methods
+
+        protected void Read()
+        {
+            while (runReader)
+            {
+                try
+                {
+                    string line = this.port.ReadLine();                    
+                    this.OnInputLineRead(line);                    
+                    //System.Diagnostics.Trace.WriteLine(line);
+                }
+                catch (Exception) { }
+            }
+        }
+
+        protected void OnInputLineRead(string line)
+        {
+            if (this.LineRead != null)
+                this.LineRead(line);
+        }
+
+        #endregion
+
+    }
+
+
+
+}

AIS/bsmd.AISService/AIS/TelnetDataHandler.cs

@@ -0,0 +1,112 @@
+//
+//  Class:			TelnetDataHandler
+//	Current CLR:	4.0.30319.296
+//	System:			Microsoft Visual Studio 10.0
+//	Author:			dani
+// 	Created:		3/16/2013 2:12:35 PM
+//
+//	Copyright (c) 2013 Informatikbüro Daniel Schick. All rights reserved.
+
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Diagnostics;
+
+namespace bsmd.AISService.AIS
+{
+    public class TelnetDataHandler
+    {
+        AIS_Telnet aisTelnet;
+        AIS_Decoder decoder;
+        Thread readerThread;
+        bool requestStop;
+
+        public TelnetDataHandler(AIS_Telnet telnetConnection, AIS_Decoder aisDecoder)
+        {
+            this.aisTelnet = telnetConnection;
+            this.decoder = aisDecoder;
+        }
+
+        public AIS_Decoder AIS_Decoder
+        {
+            get { return this.decoder; }
+        }
+
+        public override string ToString()
+        {
+            return string.Format("Telnet AIS Receiver {0}:{1}",
+                this.aisTelnet.Hostname,
+                this.aisTelnet.Port);
+        }
+
+        public bool Start(ref string message)
+        {
+            if (readerThread != null) return true; // already running
+            try
+            {
+                this.readerThread = new Thread(new ThreadStart(this.ReaderThread));
+                readerThread.Start();
+                this.requestStop = false;
+                message = "reader thread started";
+                return true;
+            }
+            catch (Exception ex)
+            {
+                message = ex.Message;
+                return false;
+            }
+        }
+
+        public void Stop()
+        {
+            if (readerThread.IsAlive)
+            {
+                this.requestStop = true;
+                readerThread.Join();
+            }
+            this.readerThread = null;
+        }
+
+        private void ReaderThread()
+        {
+            NMEA.Status nmea_Status = NMEA.Status.OK;
+            System.Diagnostics.Trace.WriteLine("starting telnet reader thread");
+            while (!requestStop)
+            {
+                try
+                {
+
+                    string data = this.aisTelnet.ReadLine();
+                    // Trace.WriteLine(data);
+                    if (data != null && data.Length > 0)
+                    {
+                        NMEA decodedSentence = NMEA.Decode(data, ref nmea_Status);
+                        if (decodedSentence != null)
+                        {
+                            if (decodedSentence is NMEA_AIS_Sentence)
+                            {
+                                NMEA_AIS_Sentence aisSentence = decodedSentence as NMEA_AIS_Sentence;
+                                this.decoder.Decode(aisSentence.AIS_Message, aisSentence.Msg_Sentence_Nr,
+                                    aisSentence.Total_Sentence_Nr, aisSentence.Seq_Message_Ident, this.aisTelnet.StationName);
+                            }
+                        }
+                        else
+                        {
+                            Trace.WriteLine("Serial data handler: NMEA decoder returned null/empty sentence");
+                        }
+                    }
+                }
+                catch (Exception ex)
+                {
+                    var st = new StackTrace(ex, true);
+                    var frame = st.GetFrame(0);
+                    var line = frame.GetFileLineNumber();
+                    Trace.WriteLine(string.Format("Exception in telnet reader thread: {0}, top frame ln {1}", ex.Message, line));
+                    Trace.WriteLine(ex.StackTrace);
+                }
+                Thread.Sleep(100);
+            }
+            aisTelnet.Close();
+        }
+    }
+}

AIS/bsmd.AISService/AISService.Designer.cs

@@ -0,0 +1,37 @@
+namespace bsmd.AISService
+{
+    partial class AISService
+    {
+        /// <summary> 
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Component Designer generated code
+
+        /// <summary> 
+        /// Required method for Designer support - do not modify 
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            components = new System.ComponentModel.Container();
+            this.ServiceName = "Service1";
+        }
+
+        #endregion
+    }
+}

AIS/bsmd.AISService/AISService.cs

@@ -0,0 +1,93 @@
+// Copyright (c) 2008-2018 schick Informatik
+// Description:
+//
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Diagnostics;
+using System.Linq;
+using System.ServiceProcess;
+using System.Text;
+using System.Threading.Tasks;
+
+using bsmd.AISService.AIS;
+using bsmd.AISService.DB;
+
+using log4net;
+using System.IO;
+
+namespace bsmd.AISService
+{
+    public partial class AISService : ServiceBase
+    {
+        private const string config_filename = "ais_config.xml";
+        private ILog _log = LogManager.GetLogger(typeof(AISService));
+        private AIS_QueueManager qManager;
+
+        public AISService()
+        {
+            Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);
+            InitializeComponent();
+        }
+
+        protected override void OnStart(string[] args)
+        {
+            string errorMessage = "";
+
+            this.EventLog.Source = this.ServiceName;
+            this.EventLog.Log = "Application";
+            this.Init(args);
+            if (qManager.Start(ref errorMessage))
+            {
+                this.EventLog.WriteEntry("BSMD AIS Service started.", EventLogEntryType.Information);
+                System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
+                FileVersionInfo fvi = FileVersionInfo.GetVersionInfo(assembly.Location);
+                string version = fvi.FileVersion;
+                _log.InfoFormat("Starting AIS Service. v.{0} -------------- ", version);
+            } else
+            {
+                _log.ErrorFormat("AIS Service start failed: {0}", errorMessage);
+            }
+
+        }
+
+        protected override void OnStop()
+        {
+            this.qManager.Stop();
+        }
+
+        protected void Init(string[] args)
+        {
+            AIS_Configuration configuration = AIS_Configuration.Load(config_filename);
+
+            if (configuration == null)
+            {
+                Console.WriteLine(string.Format("cannot read configuration {0}", config_filename));
+                return;
+            }
+
+            DBConnector dbConnector = new DBConnector();
+            dbConnector.ConnectionString = configuration.DBConnectionString;
+            if (!dbConnector.Open())
+            {
+                Console.WriteLine("Error connecting to database");
+                return;
+            }
+
+            List<AISStation> stationList = AISStation.LoadStations(dbConnector);
+
+            this.qManager = new AIS_QueueManager(configuration, AISStation.CreateSerial_IOs(stationList), AISStation.CreateAIS_Telnets(stationList));
+            qManager.DBUpdateRequired += new AIS_QueueManager.AISQueueChangedHandler(dbConnector.Update);
+            qManager.AISQueueChanged += new AIS_QueueManager.AISQueueChangedHandler(aisDecoder_AISMessageReceived);
+        }
+
+        protected void aisDecoder_AISMessageReceived(AIS_Target target)
+        {
+            Console.WriteLine(string.Format("{0}: {1} Pos:{2} {3} at {4}", target.Station, target.Name, target.Latitude, target.Longitude, target.LastUpdate));
+        }
+
+
+    }
+}

AIS/bsmd.AISService/App.config

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <configSections>
+        <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
+            <section name="bsmd.AISService.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
+        </sectionGroup>
+    </configSections>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
+    </startup>
+    <applicationSettings>
+        <bsmd.AISService.Properties.Settings>
+            <setting name="ConnectionString" serializeAs="String">
+                <value />
+            </setting>
+        </bsmd.AISService.Properties.Settings>
+    </applicationSettings>
+</configuration>

AIS/bsmd.AISService/DB/AISPosReport.cs

@@ -0,0 +1,79 @@
+using System;
+using System.Diagnostics;
+using System.Collections.Generic;
+using System.Text;
+
+using bsmd.AISService.AIS;
+
+namespace bsmd.AISService.DB
+{    
+
+    internal class AISPosReport
+    {
+        /// <summary>
+        /// Saves a (class A or B) position report
+        /// </summary>
+        /// <param name="target">target to save</param>
+        /// <returns>id of insert operation (to update hotposition table)</returns>
+        public static int? Save(AIS_Target target, DBConnector con, AISStation aisStation)
+        {
+            if (target.LastPosReport == null) return null;
+            
+            if (target.LastPosReport is AIS_PosReport)
+            {
+                // Trace.WriteLine("saving class A pos report");
+                AIS_PosReport pr = target.LastPosReport as AIS_PosReport;
+
+                if (aisStation != null)
+                {
+                    aisStation.UpdateWithPositionReport(pr.MMSI, pr.Latitude, pr.Longitude, pr.Timestamp);
+                    aisStation.LastPosTimestamp = pr.Timestamp;
+                    aisStation.OnAir = true;
+                }
+
+                string query = string.Format("INSERT INTO aisposreport (mmsi, navstatus, rot, cog, sog, accur, longitude, latitude, heading, timestamp, stationid) VALUES ({0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}, {8}, '{9}', {10})",
+                    pr.MMSI, pr.NavStatusVal, pr.ROTVal, pr.COGVal, pr.SOGVal, pr.Accuracy,
+                    pr.LongitudeVal, pr.LatitudeVal, pr.TrueHeading ?? 511, pr.DBTimestamp, 
+                    (aisStation != null) ? aisStation.Id : 0);
+                
+                con.ExecuteNonQuery(query);
+
+                object result = con.ExecuteScalar("SELECT LAST_INSERT_ID()");
+                if (result == null) return null;
+                int pid = Convert.ToInt32(result);
+                return pid;
+            }
+
+            if (target.LastPosReport is AIS_ClassB)
+            {
+                // Trace.WriteLine("saving class B pos report");
+                AIS_ClassB pr = target.LastPosReport as AIS_ClassB;
+                aisStation.UpdateWithPositionReport(pr.MMSI, pr.Latitude, pr.Longitude, pr.Timestamp);
+
+                string query = string.Format("INSERT INTO aisposreport (mmsi, navstatus, rot, cog, sog, accur, longitude, latitude, heading, timestamp, stationid) VALUES ({0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}, {8}, '{9}', {10})",
+                    pr.MMSI, 0, 0, pr.CogVal, pr.SogVal, 0, pr.LongitudeVal, pr.LatitudeVal,
+                    pr.TrueHeading ?? 511, pr.DBTimestamp, (aisStation != null) ? aisStation.Id : 0);
+
+                con.ExecuteNonQuery(query);
+
+                object result = con.ExecuteScalar("SELECT LAST_INSERT_ID()");
+                if (result == null) return null;
+                int pid = Convert.ToInt32(result);
+                return pid;
+            }
+
+            if (target.LastPosReport is AIS_ClassBExt)
+            {
+                Trace.WriteLine("AIS class B ext not supported (yet)");
+                // TODO: Import ClassB Extended report!
+
+            }
+
+            Trace.WriteLine(string.Format("save pos report: we should not be here.. class type: {0}", target));
+
+            return null;
+        }
+
+
+    }
+}

AIS/bsmd.AISService/DB/AISStaticData.cs

@@ -0,0 +1,521 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Data;
+using System.ComponentModel;
+using System.Diagnostics;
+
+using bsmd.AISService.AIS;
+
+namespace bsmd.AISService.DB
+{    
+
+    public class AISStaticData
+    {
+
+        public enum DisplayStringType
+        {
+            NAME,
+            MMSI,
+            CALLSIGN
+        }
+
+        private const string LoadDBShipsQuery = "SELECT aisposreport.MMSI, aisposreport.timestamp, aisposreport.latitude, aisposreport.longitude, aisposreport.stationid, aisposreport.cog, aisposreport.heading, aisposreport.navstatus, aisstaticdata.callsign, aisstaticdata.name, aisstaticdata.shiptype, aisstaticdata.classb, aisstaticdata.shipdescription FROM aisstaticdata JOIN hotposition ON aisstaticdata.mmsi = hotposition.mmsi JOIN aisposreport ON aisposreport.id = hotposition.pid ORDER BY aisstaticdata.name";
+
+        #region Fields
+
+        private int mmsi;
+        private string name;
+        private string callsign;
+        private DateTime? lastposition;
+        private double? lastLatitude;
+        private double? lastLongitude;
+        private int stationid;
+        private int navstatus;
+        private int shiptype;
+        private string shipdescription;
+        private int cog;
+        private int heading;
+        private bool isClassB;
+        private bool isWatchkeeper;
+        private bool isTimedOut = false;
+        private bool isSelected = false;
+        private static DisplayStringType displayStringType = DisplayStringType.NAME;
+
+        #endregion
+
+        #region Properties
+
+        public int MMSI
+        {
+            get { return this.mmsi; }
+        }
+
+        public string Name
+        {
+            get { return this.name; }
+        }
+
+        public string Callsign
+        {
+            get { return this.callsign; }
+        }
+
+        public DateTime? LastPositionReport
+        {
+            get { return this.lastposition; }
+        }
+
+        public double? LastLatitude
+        {
+            get { return this.lastLatitude; }
+        }
+
+        public double? LastLongitude
+        {
+            get { return this.lastLongitude; }
+        }
+
+        public bool IsClassB
+        {
+            get { return this.isClassB; }
+        }
+
+        public int ShipType
+        {
+            get { return this.shiptype; }
+        }
+
+        public string Description
+        {
+            get { return this.shipdescription; }
+        }
+
+        public bool IsWatchkeeperShip
+        {
+            get { return this.isWatchkeeper; }
+            set { this.isWatchkeeper = value; }
+        }
+
+        public int StationId
+        {
+            get { return this.stationid; }
+        }
+
+        public int Heading
+        {
+            get { return this.heading; }
+        }
+
+        public int COG
+        {
+            get { return this.cog; }
+        }
+
+        public int NavStatus
+        {
+            get { return this.navstatus; }
+        }
+
+        public bool Selected
+        {
+            get { return this.isSelected; }
+            set { this.isSelected = value; }
+        }
+
+        public static DisplayStringType DisplayStringTyp
+        {
+            get { return displayStringType; }
+            set { displayStringType = value; }
+        }
+
+        public bool IsTimedOut
+        {
+            get { return this.isTimedOut; }
+            set { this.isTimedOut = value; }
+        }
+        #endregion
+
+        #region public methods
+
+        public string ToHtmlString()
+        {
+            StringBuilder sb = new StringBuilder();
+
+            sb.Append(string.Format("<em>MMSI</em>: {0} <br />", this.MMSI));
+            sb.Append(string.Format("<em>Name</em>: <span style=\"font-size: bigger\">{0}</span><br />", this.Name));
+            sb.Append(string.Format("Latitude: {0}° <br />", this.LastLatitude.HasValue ? this.LastLatitude.Value.ToString("N3") : "?"));
+            sb.Append(string.Format("Longitude: {0}° <br />", this.LastLongitude.HasValue ? this.LastLongitude.Value.ToString("N3") : "?"));
+            sb.Append(string.Format("Last report: {0} <br />", this.LastPositionReport.HasValue ? this.LastPositionReport.Value.ToString() : "?"));           
+            sb.Append(string.Format("Type: {0} [{1}]<br />", this.Description, this.ShipType));                                
+            sb.Append(string.Format("Navstatus: {0}<br />", this.NavStatus));
+
+            return sb.ToString();
+        }        
+
+        #endregion
+
+        #region overrides
+
+        public override string ToString()
+        {
+            switch (displayStringType)
+            {
+                case DisplayStringType.NAME:
+                    string result = "?";
+                    if (this.name != null && this.name.Length > 0)
+                        result = this.name;                                            
+                    return result;
+                case DisplayStringType.MMSI:
+                    return this.mmsi.ToString();
+                case DisplayStringType.CALLSIGN:
+                    if (this.Callsign == null || this.Callsign.Length == 0)
+                        return "?";
+                    return this.Callsign;
+                default:
+                    return string.Format("{0} - {1}", this.name, this.mmsi);
+            }
+        }
+
+        #endregion
+
+        #region static methods
+
+        #region save a position report
+
+        /// <summary>
+        /// Saves a (class A or B) position report
+        /// </summary>
+        /// <param name="target">target to save</param>
+        /// <returns>id of insert operation (to update hotposition table)</returns>
+        public static int? Save(AIS_Target target, DBConnector con, AISStation aisStation)
+        {
+            if(target.LastStaticData == null) return null;            
+
+            int mmsi = -1;
+            int id = -1;
+
+            if(target.LastStaticData is AIS_StaticData) {                
+                mmsi = ((AIS_StaticData)target.LastStaticData).MMSI;
+            }
+            if(target.LastStaticData is AIS_ClassBStatic) {
+                mmsi = ((AIS_ClassBStatic)target.LastStaticData).MMSI;
+            }
+
+            string query = string.Format("SELECT id FROM aisstaticdata WHERE mmsi={0}", mmsi);            
+            object result = con.ExecuteScalar(query);
+
+            if (result != null) // update
+            {
+                id = Convert.ToInt32(result);
+            }
+          
+            #region Class A
+
+            if (target.LastStaticData is AIS_StaticData)
+            {
+                AIS_StaticData staticData = target.LastStaticData as AIS_StaticData;
+                
+                if (id >= 0)
+                {
+                    if (staticData.ETA.HasValue)
+                    {
+                        query = string.Format("UPDATE aisstaticdata SET imonumber={0}, callsign='{1}', name='{2}', shiptype={3}, typeofdevice='{4}', shipdescription='{5}', eta='{6}', destination='{7}', breadth={8}, length={9}, draught='{10}', stationid={11}, classb=0 WHERE id={12}",
+                            staticData.IMONumber,
+                            staticData.Callsign.Replace("'","''"),
+                            staticData.Name.Replace("'", "''"),
+                            staticData.ShipTypeVal,
+                            staticData.DeviceName,
+                            staticData.ShipType,
+                            staticData.DBETA,
+                            staticData.Destination.Replace("'", "''"),
+                            staticData.Breadth,
+                            staticData.Length,
+                            staticData.Draught,
+                            aisStation.Id,                            
+                            id);
+                    }
+                    else
+                    {
+                        query = string.Format("UPDATE aisstaticdata SET imonumber={0}, callsign='{1}', name='{2}', shiptype={3}, typeofdevice='{4}', shipdescription='{5}', destination='{6}', breadth={7}, length={8}, draught='{9}', stationid={10}, classb=0 WHERE id={11}",
+                            staticData.IMONumber,
+                            staticData.Callsign.Replace("'", "''"),
+                            staticData.Name.Replace("'", "''"),
+                            staticData.ShipTypeVal,
+                            staticData.DeviceName,
+                            staticData.ShipType,                
+                            staticData.Destination.Replace("'", "''"),
+                            staticData.Breadth,
+                            staticData.Length,
+                            staticData.Draught,
+                            aisStation.Id,
+                            id);
+
+                    }                    
+                    con.ExecuteNonQuery(query);
+                }
+                else
+                {
+                    if (staticData.ETA.HasValue)
+                    {
+                        
+                        query = string.Format("INSERT INTO aisstaticdata SET imonumber={0}, callsign='{1}', name='{2}', shiptype={3}, typeofdevice='{4}', shipdescription='{5}', eta='{6}', destination='{7}', breadth={8}, length={9}, draught='{10}', stationid={11}, mmsi={12}, classb=0",
+                            staticData.IMONumber,
+                            staticData.Callsign.Replace("'", "''"),
+                            staticData.Name.Replace("'", "''"),
+                            staticData.ShipTypeVal,
+                            staticData.DeviceName,
+                            staticData.ShipType,
+                            staticData.DBETA,
+                            staticData.Destination.Replace("'", "''"),
+                            staticData.Breadth,
+                            staticData.Length,
+                            staticData.Draught,
+                            aisStation.Id,
+                            staticData.MMSI);                            
+                    }
+                    else
+                    {
+                        query = string.Format("INSERT INTO aisstaticdata SET imonumber={0}, callsign='{1}', name='{2}', shiptype={3}, typeofdevice='{4}', shipdescription='{5}', destination='{6}', breadth={7}, length={8}, draught='{9}', stationid={10}, mmsi={11}, classb=0",
+                            staticData.IMONumber,
+                            staticData.Callsign.Replace("'", "''"),
+                            staticData.Name.Replace("'", "''"),
+                            staticData.ShipTypeVal,
+                            staticData.DeviceName,
+                            staticData.ShipType,                            
+                            staticData.Destination.Replace("'", "''"),
+                            staticData.Breadth,
+                            staticData.Length,
+                            staticData.Draught,
+                            aisStation.Id,
+                            staticData.MMSI);                    
+                    }
+
+                    con.ExecuteNonQuery(query);
+                    
+                    id = Convert.ToInt32(con.ExecuteScalar("SELECT LAST_INSERT_ID()"));
+
+                }
+
+            }
+
+            #endregion
+
+            #region Class B
+
+            if (target.LastStaticData is AIS_ClassBStatic)
+            {
+                AIS_ClassBStatic staticData = target.LastStaticData as AIS_ClassBStatic;
+
+                if (id >= 0) // Update
+                {
+                    query = string.Format("UPDATE aisstaticdata SET stationid={0}, shiptype={1}, classb=1", aisStation.Id, staticData.ShipTypeVal);
+                    if(staticData.Callsign != null) query += string.Format(", callsign='{0}'", staticData.Callsign);
+                    if(staticData.Name != null) query += string.Format(", name='{0}'", staticData.Name);
+                    if(staticData.VendorId != null) query += string.Format(", typeofdevice='{0}'", staticData.VendorId);
+                    if(staticData.ShipType != null) query += string.Format(", shipdescription='{0}'", staticData.ShipType);
+                    query += string.Format(" WHERE id={0}", id);
+
+                    con.ExecuteNonQuery(query);
+                }
+                else // Insert
+                {
+                    query = string.Format("INSERT INTO aisstaticdata SET callsign='{0}', name='{1}', shiptype={2}, typeofdevice='{3}', shipdescription='{4}', stationid={5}, mmsi={6}, classb=1",                            
+                            staticData.Callsign,
+                            staticData.Name,
+                            staticData.ShipTypeVal,
+                            staticData.VendorId,
+                            staticData.ShipType,
+                            aisStation.Id,
+                            staticData.MMSI
+                            );
+
+                    con.ExecuteNonQuery(query);                    
+                    id = Convert.ToInt32(con.ExecuteScalar("SELECT LAST_INSERT_ID()"));
+                }
+            }
+
+            #endregion
+
+            return id;
+        }
+
+        #endregion
+
+        /// <summary>
+        /// Loads shipname for display (until static data has been received)
+        /// </summary>
+        public static string LoadName(int mmsi, DBConnector con)
+        {
+            string query = string.Format("SELECT name FROM aisstaticdata where mmsi={0}", mmsi);
+            string result = con.ExecuteScalar(query) as string;
+            if (result == null) result = "";
+            return result;
+        }
+
+        /// <summary>
+        /// Loads callsign for display (until static data has been received)
+        /// </summary>
+        public static string LoadCallsign(int mmsi, DBConnector con)
+        {
+            string query = string.Format("SELECT callsign FROM aisstaticdata where mmsi={0}", mmsi);            
+            string result = con.ExecuteScalar(query) as string;
+            if (result == null) result = "";
+            return result;
+        }
+
+        /// <summary>
+        /// preload target with data from database until static data has been received
+        /// </summary>
+        /// <param name="target">target to load</param>
+        public static void PreloadTarget(AIS_Target target, DBConnector con)
+        {
+            if (target.MMSI == 0) return;
+            string query = string.Format("SELECT name, callsign, shiptype FROM aisstaticdata where mmsi={0}", target.MMSI);            
+            IDataReader reader = con.ExecuteQuery(query);
+            if (reader.Read())
+            {
+                if (!reader.IsDBNull(0)) target.LastDBName = reader.GetString(0);
+                if (!reader.IsDBNull(1)) target.Callsign = reader.GetString(1);
+                if (!reader.IsDBNull(2))
+                    target.TargetType = AIS_StaticData.GetShipTypeSimple(reader.GetInt32(2));
+            }
+            reader.Close();
+        }
+
+        /// <summary>
+        /// Load all ships that have a position and static data from database
+        /// </summary>
+        public static List<AISStaticData> LoadDBShips(DBConnector con)
+        {
+            List<AISStaticData> result = new List<AISStaticData>();                        
+            IDataReader reader = con.ExecuteQuery(AISStaticData.LoadDBShipsQuery);
+            while (reader.Read())
+            {
+                AISStaticData ship = new AISStaticData();
+                ship.mmsi = reader.GetInt32(0);
+                ship.lastposition = reader.GetDateTime(1);
+                ship.lastLatitude = (double) Math.Round(reader.GetInt32(2) / 600000.0, 4);
+                ship.lastLongitude = (double) Math.Round(reader.GetInt32(3) / 600000.0, 4);
+                ship.stationid = reader.GetInt32(4);
+                ship.cog = reader.GetInt32(5);
+                ship.heading = reader.GetInt32(6);
+                ship.navstatus = reader.GetInt32(7);
+                if(!reader.IsDBNull(8))
+                    ship.callsign = reader.GetString(8);
+                if(!reader.IsDBNull(9))
+                    ship.name = reader.GetString(9);
+                ship.shiptype = reader.GetInt32(10);
+                if (reader.IsDBNull(11)) ship.isClassB = false;
+                else ship.isClassB = reader.GetBoolean(11);
+                ship.shipdescription = reader.GetString(12);
+                result.Add(ship);
+            }
+            reader.Close();
+            Trace.WriteLine(string.Format("AISStaticData: {0} ships loaded from DB", result.Count));
+            return result;
+        }
+       
+        #endregion
+
+    }
+
+    #region Comparer Class for grid
+
+    public class AISStaticData_Comparer : IComparer<AISStaticData>
+    {
+        private SortPropertyEnum sortProperty = SortPropertyEnum.NAME;
+        private ListSortDirection sortDirection = ListSortDirection.Ascending;
+
+        public enum SortPropertyEnum
+        {
+            NONE,
+            MMSI,
+            NAME,
+            CALLSIGN,
+            LASTUPDATE,
+            DESCRIPTION
+        }
+
+        #region Properties
+
+        public ListSortDirection SortDirection
+        {
+            get { return this.sortDirection; }
+            set { this.sortDirection = value; }
+        }
+
+        public SortPropertyEnum SortProperty
+        {
+            get { return this.sortProperty; }
+            set { this.sortProperty = value; }
+        }
+
+        #endregion
+
+        public int Compare(AISStaticData x, AISStaticData y)
+        {
+            switch (this.sortProperty)
+            {
+                case SortPropertyEnum.NONE:
+                    return 0;
+                case SortPropertyEnum.NAME:
+                    {
+                        string xName = x.Name;
+                        if (xName == null) xName = "";
+                        string yName = y.Name;
+                        if (yName == null) yName = "";
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return xName.CompareTo(yName);
+                        else
+                            return yName.CompareTo(xName);
+                    }
+                case SortPropertyEnum.LASTUPDATE:
+                    {
+                        DateTime xTime = x.LastPositionReport ?? DateTime.MinValue;
+                        DateTime yTime = y.LastPositionReport ?? DateTime.MinValue;
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return xTime.CompareTo(yTime);
+                        else
+                            return yTime.CompareTo(xTime);
+                    }
+                case SortPropertyEnum.MMSI:
+                    {
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return x.MMSI.CompareTo(y.MMSI);
+                        else
+                            return y.MMSI.CompareTo(x.MMSI);
+                    }
+                case SortPropertyEnum.CALLSIGN:
+                    {
+                        string xCallsign = x.Callsign;
+                        if (xCallsign == null) xCallsign = "";
+                        string yCallsign = y.Callsign;
+                        if (yCallsign == null) yCallsign = "";
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return xCallsign.CompareTo(yCallsign);
+                        else
+                            return yCallsign.CompareTo(xCallsign);
+                    }
+                case SortPropertyEnum.DESCRIPTION:
+                    {
+                        string xDescription = x.Description;
+                        if (xDescription == null) xDescription = "";
+                        string yDescription = y.Description;
+                        if (yDescription == null) yDescription = "";
+                        if (this.sortDirection == ListSortDirection.Ascending)
+                            return xDescription.CompareTo(yDescription);
+                        else
+                            return yDescription.CompareTo(xDescription);
+                    }
+                default:
+                    return 0;
+            }
+
+
+
+        }
+
+        #endregion
+    }
+}

AIS/bsmd.AISService/DB/AISStation.cs

@@ -0,0 +1,258 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Data;
+using System.Globalization;
+
+using bsmd.AISService.AIS;
+
+namespace bsmd.AISService.DB
+{    
+
+    public class AISStation
+    {
+        #region private members
+
+        private int station_Id;
+        private string name;
+        private bool active;
+        private string comport;
+        private int baudrate;
+        private int telnetPort;
+        private string telnetHost;        
+        private bool onAir = false;
+        private double rangeMax = 0;
+        private double rangeAverage;
+        private double coverage;
+        private double latitude;
+        private double longitude;
+        private string address;
+        private DateTime? lastPosTimestamp;
+        private bool isDirty = false;
+        private Dictionary<int, double> targets = new Dictionary<int, double>();
+
+        #endregion
+
+        #region Properties
+
+        public string Name { get { return this.name; } set { this.name = value; } }
+        public int Id { get { return this.station_Id; } }
+        public bool Active { get { return this.active; } set { this.active = value; } }
+        public string COMPort { get { return this.comport; } set { this.comport = value; } }
+        public int Baudrate { get { return this.baudrate; } set { this.baudrate = value; } }
+        public string TelnetHost { get { return this.telnetHost; } set { this.telnetHost = value; } }
+        public int TelnetPort { get { return this.telnetPort; } set { this.telnetPort = value; } }
+        public bool OnAir { get { return this.onAir; } set { this.onAir = value; } }
+        public double RangeMax { get { return this.rangeMax; } }
+        public double RangeAverage { get { return this.rangeAverage; } }
+        public double Coverage { get { return this.coverage; } }
+        public string CoverageText { get { return string.Format("{0} qkm", this.coverage.ToString("N2")); } }
+        public double Latitude
+        {
+            get { return this.latitude; }
+            set
+            {
+                this.latitude = value;
+                this.isDirty = true;
+                this.rangeMax = 0;
+            }
+        }
+        public double Longitude
+        {
+            get { return this.longitude; }
+            set
+            {
+                this.longitude = value;
+                this.isDirty = true;
+                this.rangeMax = 0;
+            }
+        }
+        public string Address { get { return this.address; } }
+        public bool IsDirty { get { return this.isDirty; } }
+
+        public DateTime? LastPosTimestamp
+        {
+            get { return this.lastPosTimestamp; }
+            set
+            {
+                this.lastPosTimestamp = value;
+            }
+        }
+
+        public int NumTargets
+        {
+            get { return this.targets.Count; }
+        }        
+
+        public Dictionary<int, double> Targets { get { return this.targets; } }
+
+        public bool MustDelete { get; set; }
+
+        #endregion
+
+        #region public methods
+
+        public bool Save(DBConnector con)
+        {
+            string query = string.Format("UPDATE aisstation SET lat={0}, lon={1}, telnetHost='{2}', telnetPort={3}, comPort='{4}', name='{5}', baudrate={6} WHERE id={7}",
+                (int) (this.latitude * 600000), 
+                (int) (this.longitude * 600000), 
+                this.telnetHost,
+                this.telnetPort,
+                this.comport,
+                this.name,
+                this.baudrate,
+                this.station_Id);
+                        
+            if (con.ExecuteNonQuery(query) == 1)
+            {
+                this.isDirty = false;
+                return true;
+            }
+            return false;
+        }
+
+        public void UpdateWithPositionReport(int mmsi, double lat, double lon, DateTime timestamp)
+        {
+
+            double distance = bsmd.AISService.AIS.AIS.GetDistance(this.Latitude, this.Longitude, lat, lon);
+            if (distance > this.rangeMax)
+            {
+                this.rangeMax = distance;
+                this.coverage = Math.PI * this.rangeMax * this.rangeMax;
+            }
+             
+            lock (this.Targets)
+            {
+                if (!this.targets.ContainsKey(mmsi))
+                    this.targets.Add(mmsi, distance);
+                else this.targets[mmsi] = distance;
+            }
+
+            // durchschnittl. Reichweite
+            double sumRange = 0;
+            foreach (int key in this.targets.Keys)
+                sumRange += this.targets[mmsi];
+            this.rangeAverage = sumRange / (double)this.targets.Count;
+
+            if (!this.lastPosTimestamp.HasValue) this.lastPosTimestamp = timestamp;
+            else
+            {
+                if (this.lastPosTimestamp.Value < timestamp)
+                    this.lastPosTimestamp = timestamp;
+            }
+
+        }
+
+        /// <summary>
+        /// clear targets and reset coverage
+        /// </summary>
+        public void ResetStation()
+        {
+            this.targets.Clear();
+            this.coverage = 0;
+            this.rangeAverage = 0;
+            this.rangeMax = 0;
+        }
+
+        /// <summary>
+        /// deletes this station
+        /// </summary>        
+        public void Delete(DBConnector con)
+        {
+            string query = string.Format("DELETE FROM aisstation WHERE id={0}", this.Id);
+            con.ExecuteNonQuery(query);
+        }
+
+        #endregion
+
+        #region static methods
+
+        public static List<AISStation> LoadStations(DBConnector con)
+        {
+            List<AISStation> result = new List<AISStation>();
+            string query = "SELECT id, name, active, lat, lon, address, telnetHost, telnetPort, comPort, baudrate FROM aisstation";                        
+            IDataReader reader = con.ExecuteQuery(query);
+            if (reader == null) return result;
+                
+            while (reader.Read())
+            {
+                AISStation station = new AISStation();
+                station.station_Id = reader.GetInt32(0);
+                station.name = reader.GetString(1);
+                station.active = reader.GetBoolean(2);
+                station.latitude = (double) reader.GetInt32(3) / 600000;
+                station.longitude = (double) reader.GetInt32(4) / 600000;
+                if(!reader.IsDBNull(5))
+                    station.address = reader.GetString(5);
+                if (!reader.IsDBNull(6))
+                    station.telnetHost = reader.GetString(6);
+                if (!reader.IsDBNull(7))
+                    station.telnetPort = reader.GetInt32(7);
+                if (!reader.IsDBNull(8))
+                    station.comport = reader.GetString(8);
+                if (!reader.IsDBNull(9))
+                    station.baudrate = reader.GetInt32(9);
+                result.Add(station);
+            }
+            reader.Close();
+            return result;
+        }
+
+        public static AISStation CreateStation(string name, DBConnector con)
+        {
+            AISStation newStation = new AISStation();
+            newStation.name = name;
+            newStation.active = true;
+            string query = string.Format("INSERT INTO aisstation SET name='{0}',active=1",
+                name);
+            con.ExecuteNonQuery(query);
+            newStation.station_Id = Convert.ToInt32(con.ExecuteScalar("SELECT LAST_INSERT_ID()"));            
+            
+            return newStation;
+        }
+
+        public static List<Serial_IO> CreateSerial_IOs(List<AISStation> stationList)
+        {
+            List<Serial_IO> result = new List<Serial_IO>();
+            foreach (AISStation station in stationList)
+            {
+                if ((station.COMPort != null) && (station.COMPort.Length > 0))
+                {
+                    Serial_IO serialIO = new Serial_IO();
+                    serialIO.BaudRate = (station.Baudrate == 0) ? 9600 : station.Baudrate;
+                    serialIO.ComPort = station.COMPort;
+                    serialIO.StationName = station.Name;
+                    result.Add(serialIO);
+                }
+            }
+            return result;
+        }
+
+        public static List<AIS_Telnet> CreateAIS_Telnets(List<AISStation> stationList)
+        {
+            List<AIS_Telnet> result = new List<AIS_Telnet>();
+            foreach (AISStation station in stationList)
+            {
+                if ((station.TelnetHost != null) && (station.TelnetHost.Length > 0))
+                {
+                    try
+                    {
+                        AIS_Telnet telnet = new AIS_Telnet(station.TelnetHost, station.TelnetPort);
+                        telnet.StationName = station.Name;
+                        result.Add(telnet);
+                    }
+                    catch (Exception ex)
+                    {
+                        System.Diagnostics.Trace.WriteLine(string.Format("AIS_Telnet: cannot connect to host {0} port {1}: {2}", 
+                            station.TelnetHost ?? "", station.TelnetPort, ex.Message));
+                    }                    
+                }
+            }
+            return result;
+        }
+
+        #endregion
+        
+    }
+}

AIS/bsmd.AISService/DB/AISWatchkeeper.cs

@@ -0,0 +1,50 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Data;
+
+using bsmd.AISService.AIS;
+
+namespace bsmd.AISService.DB
+{
+    public class AISWatchkeeper
+    {
+        private static string GetAllWatchkeeperShipsQuery = "SELECT mmsi, name, aktiv, watching, tracking FROM wk_ship";
+        private int mmsi;
+        private string name;
+        private bool aktiv;
+        private bool watching;
+        private bool tracking;
+
+        public int MMSI
+        {
+            get { return this.mmsi; }
+        }
+
+        public bool Aktiv
+        {
+            get { return this.aktiv; }
+        }
+
+        public static List<AISWatchkeeper> GetWatchkeeperShips(DBConnector con)
+        {
+            List<AISWatchkeeper> result = new List<AISWatchkeeper>();            
+            IDataReader reader = con.ExecuteQuery(AISWatchkeeper.GetAllWatchkeeperShipsQuery);
+            if (reader == null) return result;
+            while (reader.Read())
+            {
+                AISWatchkeeper wkShip = new AISWatchkeeper();
+                wkShip.mmsi = reader.GetInt32(0);
+                wkShip.name = reader.GetString(1);
+                wkShip.aktiv = reader.GetBoolean(2);
+                wkShip.watching = reader.GetBoolean(3);
+                wkShip.tracking = reader.GetBoolean(4);
+                result.Add(wkShip);
+            }
+            reader.Close();
+            return result;
+        }
+
+
+    }
+}

AIS/bsmd.AISService/DB/DBConnector.cs

@@ -0,0 +1,212 @@
+// Copyright (c) 2008-2018 schick Informatik
+// Description: Database connector
+//
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Data;
+using System.Data.SqlClient;
+
+using bsmd.AISService.AIS;
+
+namespace bsmd.AISService.DB
+{   
+
+    public class DBConnector
+    {        
+        private string connectionString;
+        private SqlConnection dbCon = null;
+        private List<AISWatchkeeper> watchkeeperShips = null;
+        private List<AISStaticData> dbShips = null;
+        private Dictionary<string, AISStation> updateStations = null;
+
+        public DBConnector() { }
+
+        #region Properties
+
+        public string ConnectionString
+        {
+            get { return this.connectionString; }
+            set { this.connectionString = value; }
+        }
+
+        public List<AISStaticData> DBShips
+        {
+            get
+            {
+                if (this.dbShips == null)
+                {
+                    lock (this.dbCon)
+                    {
+                        this.dbShips = AISStaticData.LoadDBShips(this);
+                    }
+                }
+                return this.dbShips;
+            }
+            set { this.dbShips = value; }
+        }
+
+        public List<AISWatchkeeper> WatchkeeperShips
+        {
+            get
+            {
+                if (this.watchkeeperShips == null) this.watchkeeperShips = AISWatchkeeper.GetWatchkeeperShips(this);
+                return this.watchkeeperShips;
+            }
+        }
+
+        #endregion
+
+        #region public methods
+
+        public SqlDataReader ExecuteQuery(string query)
+        {
+            if (!this.CheckConnection()) return null;
+
+            SqlCommand cmd = new SqlCommand(query, this.dbCon);
+            return cmd.ExecuteReader();
+        }
+
+        public int ExecuteNonQuery(string query)
+        {
+            if (!this.CheckConnection()) return 0;
+            SqlCommand cmd = new SqlCommand(query, this.dbCon);
+            return cmd.ExecuteNonQuery();
+        }
+
+        public object ExecuteScalar(string query)
+        {
+            if (!this.CheckConnection()) return 0;
+            SqlCommand cmd = new SqlCommand(query, this.dbCon);
+            return cmd.ExecuteScalar();
+        }
+
+        public bool Open()
+        {
+            if (this.dbCon != null && this.dbCon.State == System.Data.ConnectionState.Open) return true;
+            try
+            {
+                this.dbCon = new SqlConnection(this.connectionString);
+                this.dbCon.Open();
+                if (this.dbCon.State == System.Data.ConnectionState.Open)
+                    return true;
+            }
+            catch (SqlException anException)
+            {
+                Trace.WriteLine(string.Format("cannot open SQL DB connection: {0}", anException.Message));
+            }
+            return false;
+        }
+
+        public void Close()
+        {
+            try
+            {
+                if (this.dbCon != null && this.dbCon.State == System.Data.ConnectionState.Open)
+                    this.dbCon.Close();
+            }
+            catch (Exception) { } // egal 
+        }
+
+        public void Update(AIS_Target target)
+        {
+            if (this.dbCon.State != System.Data.ConnectionState.Open) // reopen
+            {
+                this.dbCon.Close();
+                this.dbCon.Open();
+            }
+
+            if (this.updateStations == null)
+            {
+                this.updateStations = new Dictionary<string, AISStation>();
+                Trace.WriteLine("loading stations..");
+                List<AISStation> stations = AISStation.LoadStations(this);
+                Trace.WriteLine(string.Format("{0} stations loaded", stations.Count));
+                foreach (AISStation station in stations)
+                    if (!updateStations.ContainsKey(station.Name))
+                        updateStations.Add(station.Name, station);
+            }
+
+            if (target.LastPosReport != null)
+            {
+                Hotposition hotposition = Hotposition.LoadForMMSI(target.MMSI, this);
+                int? pid = AISPosReport.Save(target, this, updateStations.ContainsKey(target.Station) ? updateStations[target.Station] : null);
+                if (pid.HasValue)
+                {
+                    hotposition.PosReportId = pid.Value;
+                    hotposition.Save(this);
+                }
+            }
+            else
+            {
+                Trace.WriteLine(string.Format("last pos report is null for target {0}", target.MMSI));
+            }
+            if (target.LastStaticData != null)
+            {
+                AISStaticData.Save(target, this, updateStations.ContainsKey(target.Station) ? updateStations[target.Station] : null);
+            }
+            if ((target.Name == null || target.LastDBName == null) && (target.MMSI > 0))
+            {
+                // preload values from DB
+                AISStaticData.PreloadTarget(target, this);
+            }
+
+            target.UpdateDB = false; // reset update flag                
+            // Watchkeeper check
+
+            if (this.watchkeeperShips == null)
+                this.watchkeeperShips = AISWatchkeeper.GetWatchkeeperShips(this);
+
+
+            if (!target.IsWatchkeeperShip.HasValue && this.watchkeeperShips != null)
+            {
+                for (int i = 0; i < this.watchkeeperShips.Count; i++)
+                {
+                    if (this.watchkeeperShips[i].MMSI == target.MMSI) // found it
+                        target.IsWatchkeeperShip = true;
+                }
+
+                if (!target.IsWatchkeeperShip.HasValue) // didn't find it
+                    target.IsWatchkeeperShip = false;
+            }
+
+
+        }
+
+        public void ResetWatchkeeperList()
+        {
+            this.watchkeeperShips = null;
+        }
+
+        public void SaveStation(AISStation station)
+        {
+            station.Save(this);
+        }
+
+        #endregion
+
+        #region private methods
+
+        private bool CheckConnection()
+        {
+            // if connection has been closed, re-open the connection
+            if (this.dbCon.State != System.Data.ConnectionState.Open)
+            {
+                try
+                {
+                    this.dbCon.Close();
+                    this.Open();
+                }
+                catch (SqlException ex)
+                {
+                    System.Diagnostics.Trace.WriteLine(ex.ToString());
+                }
+            }
+            return this.dbCon.State == System.Data.ConnectionState.Open;
+        }
+
+        #endregion
+
+    }
+}

AIS/bsmd.AISService/DB/Hotposition.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Data;
+using System.Data.SqlClient;
+using bsmd.AISService.AIS;
+
+namespace bsmd.AISService.DB
+{
+    internal class Hotposition
+    {
+        private int id;
+        private int mmsi;
+        private int pid;
+
+        public int MMSI
+        {
+            get { return this.mmsi; }
+        }
+
+        public int PosReportId
+        {
+            get { return this.pid; }
+            set { this.pid = value; }
+        }
+
+        public void Save(DBConnector con)
+        {
+            string query = string.Format("UPDATE hotposition SET mmsi={0}, pid={1} WHERE id={2}",
+                this.mmsi, this.pid, this.id);
+            con.ExecuteNonQuery(query);
+        }
+
+        public static Hotposition LoadForMMSI(int mmsi, DBConnector con)
+        {
+            List<Hotposition> results = new List<Hotposition>();
+            string query = string.Format("SELECT id, pid FROM hotposition WHERE mmsi={0}", mmsi);            
+            SqlDataReader reader = con.ExecuteQuery(query);
+            if (reader != null)
+            {
+                while (reader.Read())
+                {
+                    Hotposition hp = new Hotposition();
+                    hp.id = reader.GetInt32(0);
+                    hp.mmsi = mmsi;
+                    if (!reader.IsDBNull(1))
+                        hp.pid = reader.GetInt32(1);
+                    results.Add(hp);
+                }
+                reader.Close();
+            }
+
+            if (results.Count == 0)
+            {
+                // neuen Eintrag erzeugen
+                Hotposition hp = new Hotposition();
+                string insertQuery = string.Format("INSERT INTO hotposition SET mmsi={0}", mmsi);                
+                con.ExecuteNonQuery(insertQuery);
+                
+                object ob = con.ExecuteScalar("SELECT LAST_INSERT_ID()");
+                hp.id = Convert.ToInt32(ob);
+                hp.mmsi = mmsi;
+                return hp;
+            }
+            else if (results.Count == 1)
+            {
+                return results[0];
+            }
+            else
+            {
+                // überschüssige HP's löschen (jeweils nur eins pro MMSI)
+                for (int i = 1; i < results.Count; i++)
+                {
+                    string delQuery = string.Format("DELETE FROM hotposition WHERE id={0}", results[i].id);
+                    con.ExecuteNonQuery(delQuery);
+                }
+
+                return results[0];
+            }
+        }
+
+    }
+}

AIS/bsmd.AISService/Program.cs

@@ -0,0 +1,127 @@
+// Copyright (c) 2008-2018 schick Informatik
+// Description:
+//
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Configuration.Install;
+using System.Linq;
+using System.Reflection;
+using System.ServiceProcess;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace bsmd.AISService
+{
+    static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        public static int Main(string[] args)
+        {
+            if (Environment.UserInteractive)
+            {
+                if (args.Length > 0)
+                {
+                    string arg = args[0].ToLowerInvariant().Substring(0, 2);
+                    switch (arg)
+                    {
+                        case "/i":  // install
+                            return InstallService();
+
+                        case "/u":  // uninstall
+                            return UninstallService();
+
+                        default:  // unknown option
+                            Console.WriteLine("Argument not recognized: {0}", args[0]);
+                            Console.WriteLine(string.Empty);
+                            DisplayUsage();
+                            return 1;
+                    }
+                }
+                else
+                {
+                    DisplayUsage();
+                }
+            }
+            else
+            {
+                ServiceBase[] ServicesToRun;
+                ServicesToRun = new ServiceBase[]
+                {
+                new AISService()
+                };
+                ServiceBase.Run(ServicesToRun);
+            }
+            return 0;
+        }
+
+        private static void DisplayUsage()
+        {
+            //..
+        }
+
+        private static int InstallService()
+        {
+            var service = new AISService();
+
+            try
+            {
+                // perform specific install steps for our queue service.
+                //service.InstallService();
+                
+                // install the service with the Windows Service Control Manager (SCM)
+                ManagedInstallerClass.InstallHelper(new string[] { Assembly.GetExecutingAssembly().Location });
+            }
+            catch (Exception ex)
+            {
+                if (ex.InnerException != null && ex.InnerException.GetType() == typeof(Win32Exception))
+                {
+                    Win32Exception wex = (Win32Exception)ex.InnerException;
+                    Console.WriteLine("Error(0x{0:X}): Service already installed!", wex.ErrorCode);
+                    return wex.ErrorCode;
+                }
+                else
+                {
+                    Console.WriteLine(ex.ToString());
+                    return -1;
+                }
+            }
+
+            return 0;
+        }
+
+        private static int UninstallService()
+        {
+            var service = new AISService();
+
+            try
+            {
+                // perform specific uninstall steps for our queue service
+                //service.UninstallService();
+
+                // uninstall the service from the Windows Service Control Manager (SCM)
+                ManagedInstallerClass.InstallHelper(new string[] { "/u", Assembly.GetExecutingAssembly().Location });
+            }
+            catch (Exception ex)
+            {
+                if (ex.InnerException.GetType() == typeof(Win32Exception))
+                {
+                    Win32Exception wex = (Win32Exception)ex.InnerException;
+                    Console.WriteLine("Error(0x{0:X}): Service not installed!", wex.ErrorCode);
+                    return wex.ErrorCode;
+                }
+                else
+                {
+                    Console.WriteLine(ex.ToString());
+                    return -1;
+                }
+            }
+
+            return 0;
+        }
+
+    }
+}

AIS/bsmd.AISService/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("bsmd.AISService")]
+[assembly: AssemblyDescription("Windows Service zum Einlesen von AIS Daten aus einem TCP/IP Datenstrom")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("schick Informatik")]
+[assembly: AssemblyProduct("bsmd.AISService")]
+[assembly: AssemblyCopyright("Copyright ©  2018")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("a26a6de3-8505-4ec2-9eb5-12e5ebe83b11")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

AIS/bsmd.AISService/Properties/Settings.Designer.cs

@@ -0,0 +1,35 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace bsmd.AISService.Properties {
+    
+    
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "14.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
+        
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+        
+        public static Settings Default {
+            get {
+                return defaultInstance;
+            }
+        }
+        
+        [global::System.Configuration.ApplicationScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("")]
+        public string ConnectionString {
+            get {
+                return ((string)(this["ConnectionString"]));
+            }
+        }
+    }
+}

AIS/bsmd.AISService/Properties/Settings.settings

@@ -0,0 +1,9 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)" GeneratedClassNamespace="bsmd.AISService.Properties" GeneratedClassName="Settings">
+  <Profiles />
+  <Settings>
+    <Setting Name="ConnectionString" Type="System.String" Scope="Application">
+      <Value Profile="(Default)" />
+    </Setting>
+  </Settings>
+</SettingsFile>

AIS/bsmd.AISService/bsmd.AISService.csproj

@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{A26A6DE3-8505-4EC2-9EB5-12E5EBE83B11}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>bsmd.AISService</RootNamespace>
+    <AssemblyName>bsmd.AISService</AssemblyName>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SignAssembly>true</SignAssembly>
+  </PropertyGroup>
+  <PropertyGroup>
+    <AssemblyOriginatorKeyFile>bsmdKey.snk</AssemblyOriginatorKeyFile>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="log4net, Version=2.0.8.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
+      <HintPath>packages\log4net.2.0.8\lib\net45-full\log4net.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Configuration.Install" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Management" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.ServiceProcess" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="AISService.cs">
+      <SubType>Component</SubType>
+    </Compile>
+    <Compile Include="AISService.Designer.cs">
+      <DependentUpon>AISService.cs</DependentUpon>
+    </Compile>
+    <Compile Include="AIS\AIS.cs" />
+    <Compile Include="AIS\AIS_ClassB.cs" />
+    <Compile Include="AIS\AIS_ClassBExt.cs" />
+    <Compile Include="AIS\AIS_ClassBStatic.cs" />
+    <Compile Include="AIS\AIS_Configuration.cs" />
+    <Compile Include="AIS\AIS_Decoder.cs" />
+    <Compile Include="AIS\AIS_PosReport.cs" />
+    <Compile Include="AIS\AIS_QueueManager.cs" />
+    <Compile Include="AIS\AIS_StaticData.cs" />
+    <Compile Include="AIS\AIS_Target.cs" />
+    <Compile Include="AIS\AIS_Target_Comparer.cs" />
+    <Compile Include="AIS\AIS_Telnet.cs" />
+    <Compile Include="AIS\NMEA.cs" />
+    <Compile Include="AIS\NMEA_AIS_Sentence.cs" />
+    <Compile Include="AIS\NMEA_PNMLS_Sentence.cs" />
+    <Compile Include="AIS\SerialDataHandler.cs" />
+    <Compile Include="AIS\Serial_IO.cs" />
+    <Compile Include="AIS\TelnetDataHandler.cs" />
+    <Compile Include="DB\AISPosReport.cs" />
+    <Compile Include="DB\AISStaticData.cs" />
+    <Compile Include="DB\AISStation.cs" />
+    <Compile Include="DB\AISWatchkeeper.cs" />
+    <Compile Include="DB\DBConnector.cs" />
+    <Compile Include="DB\Hotposition.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="ProjectInstaller.cs">
+      <SubType>Component</SubType>
+    </Compile>
+    <Compile Include="ProjectInstaller.Designer.cs">
+      <DependentUpon>ProjectInstaller.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+      <DependentUpon>Settings.settings</DependentUpon>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+    <None Include="bsmd.AISService.licenseheader" />
+    <None Include="bsmdKey.snk" />
+    <None Include="packages.config" />
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="ProjectInstaller.resx">
+      <DependentUpon>ProjectInstaller.cs</DependentUpon>
+    </EmbeddedResource>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

AIS/bsmd.AISService/bsmd.AISService.licenseheader

@@ -0,0 +1,16 @@
+extensions: designer.cs generated.cs
+extensions: .cs .cpp .h
+// Copyright (c) 2008-2018 schick Informatik
+// Description:
+//
+
+extensions: .aspx .ascx
+<%-- 
+Copyright (c) 2008-2018 schick Informatik
+--%>
+extensions: .vb
+'Sample license text.
+extensions:  .xml .config .xsd
+<!--
+Sample license text.
+-->

AIS/bsmd.AISService/bsmd.AISService.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.25123.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "bsmd.AISService", "bsmd.AISService.csproj", "{A26A6DE3-8505-4EC2-9EB5-12E5EBE83B11}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{A26A6DE3-8505-4EC2-9EB5-12E5EBE83B11}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A26A6DE3-8505-4EC2-9EB5-12E5EBE83B11}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A26A6DE3-8505-4EC2-9EB5-12E5EBE83B11}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A26A6DE3-8505-4EC2-9EB5-12E5EBE83B11}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

AIS/bsmd.AISService/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="log4net" version="2.0.8" targetFramework="net452" />
+</packages>

ENI-2/ENI2/ENI2/App.config

@@ -26,12 +26,12 @@
                 <value>1000</value>
             </setting>
             <setting name="LockingServerAddress" serializeAs="String">
-              <value>http://192.168.2.4/LockingService/LockingService.svc</value>
+              <!--value>http://192.168.2.4/LockingService/LockingService.svc</value-->
-              <!--value>http://heupferd/bsmd.LockingService/LockingService.svc</value-->
+              <value>http://heupferd/bsmd.LockingService/LockingService.svc</value>
             </setting>
             <setting name="ConnectionString" serializeAs="String">
-              <value>Data Source=192.168.2.12;Initial Catalog=nsw;Uid=dfuser;Pwd=dfpasswd;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False</value>
+              <!--value>Data Source=192.168.2.12;Initial Catalog=nsw;Uid=dfuser;Pwd=dfpasswd;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False</value-->
-                <!--value>Data Source=(localdb)\Projects;Initial Catalog=nsw;Integrated Security=True;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False</value-->
+                <value>Data Source=(localdb)\Projects;Initial Catalog=nsw;Integrated Security=True;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False</value>
             </setting>
         </ENI2.Properties.Settings>
     </applicationSettings>

nsw/Source/bsmd.ExcelReadService/ExcelReader.cs

@@ -310,8 +310,8 @@ namespace bsmd.ExcelReadService
 
                 if (val.Length == 2)
                 {
-                    this.Conf.ConfirmText(lookup, val, ReadState.OK);
                     val = val.ToUpper();
+                    this.Conf.ConfirmText(lookup, val, ReadState.OK);                    
                 }
             }
             return val;

nsw/Source/bsmd.database/INFO.cs

@@ -196,7 +196,7 @@ namespace bsmd.database
 
         public override void Validate(List<MessageError> errors, List<MessageViolation> violations)
         {
-            if ((PortArea.Length >= 2) && (PortArea.Length <= 4))
+            if ((PortArea != null) && (PortArea.Length >= 2) && (PortArea.Length <= 4))
             {
                 if ((RuleEngine.PortAreaChecker != null) && (this.MessageCore != null))
                     if (!RuleEngine.PortAreaChecker(this.MessageCore.PoC, this.PortArea))
@@ -204,7 +204,8 @@ namespace bsmd.database
             }
             else
             {
-                errors.Add(RuleEngine.CreateError(ValidationCode.PORTAREA, "PortArea", this.PortArea, "INFO", "", this.Tablename));
+                if(this.MessageCore.PoC != "DEHAM")
+                    errors.Add(RuleEngine.CreateError(ValidationCode.PORTAREA, "PortArea", this.PortArea ?? "", "INFO", "", this.Tablename));
             }
         }