13 files changed, 2063 insertions, 0 deletions

diff --git a/src/org/traccar/DataManager.java b/src/org/traccar/DataManager.java
new file mode 100644
index 000000000..c2ba588cd
--- /dev/null
+++ b/src/org/traccar/DataManager.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar;
+
+import java.util.List;
+
+/**
+ * Data manager
+ */
+public interface DataManager {
+
+    /**
+     * Read device list
+     */
+    public List getDevices() throws Exception;
+
+    /**
+     * Get device by imei
+     */
+    public Device getDeviceByImei(String imei) throws Exception;
+
+    /**
+     * Write position
+     */
+    public void setPosition(Position position) throws Exception;
+
+}
diff --git a/src/org/traccar/Device.java b/src/org/traccar/Device.java
new file mode 100644
index 000000000..ad952bac8
--- /dev/null
+++ b/src/org/traccar/Device.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar;
+
+/**
+ * Device
+ */
+public class Device {
+
+    /**
+     * Id
+     */
+    private Long id;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long newId) {
+        id = newId;
+    }
+
+    /**
+     * International mobile equipment identity (IMEI)
+     */
+    private String imei;
+
+    public String getImei() {
+        return imei;
+    }
+
+    public void setImei(String newImei) {
+        imei = newImei;
+    }
+
+}
diff --git a/src/org/traccar/Position.java b/src/org/traccar/Position.java
new file mode 100644
index 000000000..29451482d
--- /dev/null
+++ b/src/org/traccar/Position.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar;
+
+import java.util.Date;
+
+/**
+ * Position information
+ */
+public class Position {
+
+    /**
+     * Id
+     */
+    private Long id;
+    
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long newId) {
+        id = newId;
+    }
+
+    /**
+     * Device
+     */
+    private Long deviceId;
+
+    public Long getDeviceId() {
+        return deviceId;
+    }
+
+    public void setDeviceId(Long newDeviceId) {
+        deviceId = newDeviceId;
+    }
+
+    /**
+     * Time (UTC)
+     */
+    private Date time;
+
+    public Date getTime() {
+        return time;
+    }
+
+    public void setTime(Date newTime) {
+        time = newTime;
+    }
+
+    /**
+     * Validity flag
+     */
+    private Boolean valid;
+
+    public Boolean getValid() {
+        return valid;
+    }
+
+    public void setValid(Boolean newValid) {
+        valid = newValid;
+    }
+
+    /**
+     * Latitude
+     */
+    private Double latitude;
+
+    public Double getLatitude() {
+        return latitude;
+    }
+
+    public void setLatitude(Double newLatitude) {
+        latitude = newLatitude;
+    }
+
+    /**
+     * Longitude
+     */
+    private Double longitude;
+
+    public Double getLongitude() {
+        return longitude;
+    }
+
+    public void setLongitude(Double newLongitude) {
+        longitude = newLongitude;
+    }
+    
+    /**
+     * Altitude
+     */
+    private Double altitude;
+    
+    public Double getAltitude() {
+        return altitude;
+    }
+
+    public void setAltitude(Double newAltitude) {
+        altitude = newAltitude;
+    }
+
+    /**
+     * Speed (knots)
+     */
+    private Double speed;
+
+    public Double getSpeed() {
+        return speed;
+    }
+
+    public void setSpeed(Double newSpeed) {
+        speed = newSpeed;
+    }
+
+    /**
+     * Course
+     */
+    private Double course;
+
+    public Double getCourse() {
+        return course;
+    }
+
+    public void setCourse(Double newCourse) {
+        course = newCourse;
+    }
+
+}
diff --git a/src/org/traccar/Server.java b/src/org/traccar/Server.java
new file mode 100644
index 000000000..7dd2a5990
--- /dev/null
+++ b/src/org/traccar/Server.java
@@ -0,0 +1,529 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar;
+
+import java.util.Map;
+import java.util.HashMap;
+import java.util.List;
+import java.util.LinkedList;
+import java.util.Properties;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.sql.DriverManager;
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.logging.Logger;
+import java.util.logging.FileHandler;
+import java.util.logging.Formatter;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+import org.traccar.helper.NamedParameterStatement;
+import org.jboss.netty.handler.codec.string.StringDecoder;
+import org.jboss.netty.handler.codec.string.StringEncoder;
+import org.jboss.netty.handler.codec.frame.DelimiterBasedFrameDecoder;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.jboss.netty.handler.logging.LoggingHandler;
+import org.traccar.protocol.xexun.XexunFrameDecoder;
+import org.traccar.protocol.xexun.XexunProtocolDecoder;
+import org.traccar.protocol.gps103.Gps103ProtocolDecoder;
+import org.traccar.protocol.tk103.Tk103ProtocolDecoder;
+import org.traccar.protocol.gl200.Gl200ProtocolDecoder;
+import org.traccar.protocol.t55.T55ProtocolDecoder;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.channel.ChannelPipeline;
+import org.jboss.netty.channel.ChannelPipelineFactory;
+import org.jboss.netty.channel.ChannelStateEvent;
+import org.jboss.netty.channel.Channels;
+import org.jboss.netty.channel.SimpleChannelHandler;
+
+/**
+ * Server
+ */
+public class Server implements DataManager {
+
+    /**
+     * Server list
+     */
+    private List serverList;
+
+    private boolean loggerEnable;
+
+    public Server() {
+        serverList = new LinkedList();
+        loggerEnable = false;
+    }
+    
+    public boolean isLoggerEnabled() {
+        return loggerEnable;
+    }
+
+    /**
+     * Init
+     */
+    public void init(String[] arguments)
+            throws IOException, ClassNotFoundException, SQLException {
+
+        // Load properties
+        Properties properties = new Properties();
+        if (arguments.length > 0) {
+            properties.loadFromXML(new FileInputStream(arguments[0]));
+        }
+
+        initDatabase(properties);
+        initLogger(properties);
+
+        initXexunServer(properties);
+        initGps103Server(properties);
+        initTk103Server(properties);
+        initGl200Server(properties);
+        initT55Server(properties);
+    }
+
+    /**
+     * Database connection
+     */
+    private Connection connection;
+
+    private NamedParameterStatement selectDevice;
+
+    private NamedParameterStatement insertPosition;
+
+    /**
+     * Init database
+     */
+    private void initDatabase(Properties properties)
+            throws ClassNotFoundException, SQLException {
+
+        // Load driver
+        String driver = properties.getProperty("database.driver");
+        if (driver != null) {
+            Class.forName(driver);
+        }
+
+        // Connect database
+        String url = properties.getProperty("database.url");
+        String user = properties.getProperty("database.user");
+        String password = properties.getProperty("database.password");
+
+        if (user != null && password != null) {
+            connection = DriverManager.getConnection(url, user, password);
+        } else {
+            connection = DriverManager.getConnection(url);
+        }
+
+        // Init statements
+        String selectDeviceQuery = properties.getProperty("database.selectDevice");
+        if (selectDeviceQuery != null) {
+            selectDevice = new NamedParameterStatement(connection, selectDeviceQuery);
+        }
+
+        String insertPositionQuery = properties.getProperty("database.insertPosition");
+        if (insertPositionQuery != null) {
+            insertPosition = new NamedParameterStatement(connection, insertPositionQuery);
+        }
+    }
+
+    /**
+     * Devices
+     */
+    private Map devices;
+
+    public synchronized List getDevices() throws SQLException {
+
+        List deviceList = new LinkedList();
+
+        ResultSet result = selectDevice.executeQuery();
+        while (result.next()) {
+            Device device = new Device();
+            device.setId(result.getLong("id"));
+            device.setImei(result.getString("imei"));
+            deviceList.add(device);
+        }
+
+        return deviceList;
+    }
+
+    public Device getDeviceByImei(String imei) throws SQLException {
+
+        // Init device list
+        if (devices == null) {
+            devices = new HashMap();
+
+            List deviceList = getDevices();
+
+            for (Object device: deviceList) {
+                devices.put(((Device) device).getImei(), device);
+            }
+        }
+
+        return (Device) devices.get(imei);
+    }
+
+    public synchronized void setPosition(Position position) throws SQLException {
+
+        insertPosition.setLong("device_id", position.getDeviceId());
+        insertPosition.setTimestamp("time", position.getTime());
+        insertPosition.setBoolean("valid", position.getValid());
+        insertPosition.setDouble("altitude", position.getAltitude());
+        insertPosition.setDouble("latitude", position.getLatitude());
+        insertPosition.setDouble("longitude", position.getLongitude());
+        insertPosition.setDouble("speed", position.getSpeed());
+        insertPosition.setDouble("course", position.getCourse());
+
+        insertPosition.executeUpdate();
+    }
+    
+    /**
+     * Init logger
+     */
+    public void initLogger(Properties properties) throws IOException {
+
+        loggerEnable = Boolean.valueOf(properties.getProperty("logger.enable"));
+
+        if (loggerEnable) {
+
+            Logger logger = Logger.getLogger("logger");
+            String fileName = properties.getProperty("logger.file");
+            if (fileName != null) {
+
+                FileHandler file = new FileHandler(fileName, true);
+
+                file.setFormatter(new Formatter() {
+                    private final String LINE_SEPARATOR =
+                            System.getProperty("line.separator", "\n");
+                    
+                    private final DateFormat dateFormat =
+                            new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
+
+                    public String format(LogRecord record) {
+                        String line = dateFormat.format(new Date(record.getMillis()));
+                        line += " - ";
+                        line += formatMessage(record);
+                        line += LINE_SEPARATOR;
+                        return line;
+                    }
+                });
+
+                logger.setLevel(Level.ALL);
+                logger.addHandler(file);
+            }
+        }
+    }
+
+    /**
+     * Open channel handler
+     */
+    protected class OpenChannelHandler extends SimpleChannelHandler {
+
+        private TrackerServer server;
+
+        public OpenChannelHandler(TrackerServer server) {
+            this.server = server;
+        }
+
+        @Override
+        public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e) {
+            server.getChannelGroup().add(e.getChannel());
+        }
+    }
+
+    /**
+     * Xexun pipeline factory
+     */
+    protected class XexunPipelineFactory implements ChannelPipelineFactory {
+
+        private TrackerServer server;
+        private Server serverCreator;
+        private Integer resetDelay;
+        
+        public XexunPipelineFactory(
+                TrackerServer server, Server serverCreator, Integer resetDelay) {
+            this.server = server;
+            this.serverCreator = serverCreator;
+            this.resetDelay = resetDelay;
+        }
+        
+        public ChannelPipeline getPipeline() {
+            ChannelPipeline pipeline = Channels.pipeline();
+            pipeline.addLast("openHandler", new OpenChannelHandler(server));
+            if (serverCreator.isLoggerEnabled()) {
+                pipeline.addLast("logger", new LoggingHandler("logger"));
+            }
+            pipeline.addLast("frameDecoder", new XexunFrameDecoder());
+            pipeline.addLast("stringDecoder", new StringDecoder());
+            pipeline.addLast("objectDecoder", new XexunProtocolDecoder(serverCreator, resetDelay));
+            pipeline.addLast("handler", new TrackerEventHandler(serverCreator));            
+            return pipeline;
+        }
+    }
+    
+    /**
+     * Init Xexun server
+     */
+    public void initXexunServer(Properties properties) throws SQLException {
+
+        boolean enable = Boolean.valueOf(properties.getProperty("xexun.enable"));
+        if (enable) {
+
+            TrackerServer server = new TrackerServer(
+                    Integer.valueOf(properties.getProperty("xexun.port")));
+
+            String resetDelay = properties.getProperty("xexun.resetDelay");
+            server.setPipelineFactory(new XexunPipelineFactory(
+                    server, this, (resetDelay == null) ? 0 : Integer.valueOf(resetDelay)));
+
+            serverList.add(server);
+        }
+    }
+
+    /**
+     * Gps103 pipeline factory
+     */
+    protected class Gps103PipelineFactory implements ChannelPipelineFactory {
+
+        private TrackerServer server;
+        private Server serverCreator;
+        private Integer resetDelay;
+        
+        public Gps103PipelineFactory(
+                TrackerServer server, Server serverCreator, Integer resetDelay) {
+            this.server = server;
+            this.serverCreator = serverCreator;
+            this.resetDelay = resetDelay;
+        }
+        
+        public ChannelPipeline getPipeline() {
+            ChannelPipeline pipeline = Channels.pipeline();
+            pipeline.addLast("openHandler", new OpenChannelHandler(server));
+            if (serverCreator.isLoggerEnabled()) {
+                pipeline.addLast("logger", new LoggingHandler("logger"));
+            }
+            byte delimiter[] = { (byte) ';' };
+            pipeline.addLast("frameDecoder",
+                    new DelimiterBasedFrameDecoder(1024, ChannelBuffers.wrappedBuffer(delimiter)));
+            pipeline.addLast("stringDecoder", new StringDecoder());
+            pipeline.addLast("stringEncoder", new StringEncoder());
+            pipeline.addLast("objectDecoder", new Gps103ProtocolDecoder(serverCreator, resetDelay));
+            pipeline.addLast("handler", new TrackerEventHandler(serverCreator));            
+            return pipeline;
+        }
+    }
+    
+    /**
+     * Init Gps103 server
+     */
+    public void initGps103Server(Properties properties) throws SQLException {
+
+        boolean enable = Boolean.valueOf(properties.getProperty("gps103.enable"));
+        if (enable) {
+
+            TrackerServer server = new TrackerServer(
+                    Integer.valueOf(properties.getProperty("gps103.port")));
+
+            String resetDelay = properties.getProperty("gps103.resetDelay");
+            server.setPipelineFactory(new Gps103PipelineFactory(
+                    server, this, (resetDelay == null) ? 0 : Integer.valueOf(resetDelay)));
+
+            serverList.add(server);
+        }
+    }
+
+    /**
+     * Tk103 pipeline factory
+     */
+    protected class Tk103PipelineFactory implements ChannelPipelineFactory {
+
+        private TrackerServer server;
+        private Server serverCreator;
+        private Integer resetDelay;
+        
+        public Tk103PipelineFactory(
+                TrackerServer server, Server serverCreator, Integer resetDelay) {
+            this.server = server;
+            this.serverCreator = serverCreator;
+            this.resetDelay = resetDelay;
+        }
+        
+        public ChannelPipeline getPipeline() {
+            ChannelPipeline pipeline = Channels.pipeline();
+            pipeline.addLast("openHandler", new OpenChannelHandler(server));
+            if (serverCreator.isLoggerEnabled()) {
+                pipeline.addLast("logger", new LoggingHandler("logger"));
+            }
+            byte delimiter[] = { (byte) ')' };
+            pipeline.addLast("frameDecoder",
+                    new DelimiterBasedFrameDecoder(1024, ChannelBuffers.wrappedBuffer(delimiter)));
+            pipeline.addLast("stringDecoder", new StringDecoder());
+            pipeline.addLast("stringEncoder", new StringEncoder());
+            pipeline.addLast("objectDecoder", new Tk103ProtocolDecoder(serverCreator, resetDelay));
+            pipeline.addLast("handler", new TrackerEventHandler(serverCreator));            
+            return pipeline;
+        }
+    }    
+    
+    /**
+     * Init Tk103 server
+     */
+    public void initTk103Server(Properties properties) throws SQLException {
+
+        boolean enable = Boolean.valueOf(properties.getProperty("tk103.enable"));
+        if (enable) {
+
+            TrackerServer server = new TrackerServer(
+                    Integer.valueOf(properties.getProperty("tk103.port")));
+
+            String resetDelay = properties.getProperty("tk103.resetDelay");
+            server.setPipelineFactory(new Tk103PipelineFactory(
+                    server, this, (resetDelay == null) ? 0 : Integer.valueOf(resetDelay)));
+
+            serverList.add(server);
+        }
+    }
+
+    /**
+     * Gl200 pipeline factory
+     */
+    protected class Gl200PipelineFactory implements ChannelPipelineFactory {
+
+        private TrackerServer server;
+        private Server serverCreator;
+        private Integer resetDelay;
+        
+        public Gl200PipelineFactory(
+                TrackerServer server, Server serverCreator, Integer resetDelay) {
+            this.server = server;
+            this.serverCreator = serverCreator;
+            this.resetDelay = resetDelay;
+        }
+        
+        public ChannelPipeline getPipeline() {
+            ChannelPipeline pipeline = Channels.pipeline();
+            pipeline.addLast("openHandler", new OpenChannelHandler(server));
+            if (serverCreator.isLoggerEnabled()) {
+                pipeline.addLast("logger", new LoggingHandler("logger"));
+            }
+            byte delimiter[] = { (byte) '$' };
+            pipeline.addLast("frameDecoder",
+                    new DelimiterBasedFrameDecoder(1024, ChannelBuffers.wrappedBuffer(delimiter)));
+            pipeline.addLast("stringDecoder", new StringDecoder());
+            pipeline.addLast("stringEncoder", new StringEncoder());
+            pipeline.addLast("objectDecoder", new Gl200ProtocolDecoder(serverCreator, resetDelay));
+            pipeline.addLast("handler", new TrackerEventHandler(serverCreator));
+            return pipeline;
+        }
+    }    
+    
+    /**
+     * Init Gl200 server
+     */
+    public void initGl200Server(Properties properties) throws SQLException {
+
+        boolean enable = Boolean.valueOf(properties.getProperty("gl200.enable"));
+        if (enable) {
+
+            TrackerServer server = new TrackerServer(
+                    Integer.valueOf(properties.getProperty("gl200.port")));
+
+            String resetDelay = properties.getProperty("gl200.resetDelay");
+            server.setPipelineFactory(new Gl200PipelineFactory(
+                    server, this, (resetDelay == null) ? 0 : Integer.valueOf(resetDelay)));
+
+            serverList.add(server);
+        }
+    }
+    
+    /**
+     * T55 pipeline factory
+     */
+    protected class T55PipelineFactory implements ChannelPipelineFactory {
+
+        private TrackerServer server;
+        private Server serverCreator;
+        private Integer resetDelay;
+        
+        public T55PipelineFactory(
+                TrackerServer server, Server serverCreator, Integer resetDelay) {
+            this.server = server;
+            this.serverCreator = serverCreator;
+            this.resetDelay = resetDelay;
+        }
+        
+        public ChannelPipeline getPipeline() {
+            ChannelPipeline pipeline = Channels.pipeline();
+            pipeline.addLast("openHandler", new OpenChannelHandler(server));
+            if (serverCreator.isLoggerEnabled()) {
+                pipeline.addLast("logger", new LoggingHandler("logger"));
+            }
+            byte delimiter[] = { (byte) '\r', (byte) '\n' };
+            pipeline.addLast("frameDecoder",
+                    new DelimiterBasedFrameDecoder(1024, ChannelBuffers.wrappedBuffer(delimiter)));
+            pipeline.addLast("stringDecoder", new StringDecoder());
+            pipeline.addLast("stringEncoder", new StringEncoder());
+            pipeline.addLast("objectDecoder", new T55ProtocolDecoder(serverCreator, resetDelay));
+            pipeline.addLast("handler", new TrackerEventHandler(serverCreator));
+            return pipeline;
+        }
+    }    
+    
+    /**
+     * Init T55 server
+     */
+    public void initT55Server(Properties properties) throws SQLException {
+
+        boolean enable = Boolean.valueOf(properties.getProperty("t55.enable"));
+        if (enable) {
+
+            TrackerServer server = new TrackerServer(
+                    Integer.valueOf(properties.getProperty("t55.port")));
+
+            String resetDelay = properties.getProperty("t55.resetDelay");
+            server.setPipelineFactory(new T55PipelineFactory(
+                    server, this, (resetDelay == null) ? 0 : Integer.valueOf(resetDelay)));
+
+            serverList.add(server);
+        }
+    }
+
+    /**
+     * Start
+     */
+    public void start() {
+        for (Object server: serverList) {
+            ((TrackerServer) server).start();
+        }
+    }
+
+    /**
+     * Stop
+     */
+    public void stop() {
+        for (Object server: serverList) {
+            ((TrackerServer) server).stop();
+        }
+    }
+
+    /**
+     * Destroy
+     */
+    public void destroy() {
+        serverList.clear();
+    }
+
+}
diff --git a/src/org/traccar/TrackerEventHandler.java b/src/org/traccar/TrackerEventHandler.java
new file mode 100644
index 000000000..78be1b340
--- /dev/null
+++ b/src/org/traccar/TrackerEventHandler.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar;
+
+import org.jboss.netty.channel.SimpleChannelHandler;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.channel.ExceptionEvent;
+import org.jboss.netty.channel.MessageEvent;
+import org.jboss.netty.channel.ChannelHandler;
+
+/**
+ * Tracker message handler
+ */
+@ChannelHandler.Sharable
+public class TrackerEventHandler extends SimpleChannelHandler {
+
+    /**
+     * Data manager
+     */
+    private DataManager dataManager;
+
+    TrackerEventHandler(DataManager newDataManager) {
+        super();
+        dataManager = newDataManager;
+    }
+
+    @Override
+    public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) {
+
+        if (e.getMessage() instanceof Position) {
+            
+            Position position = (Position) e.getMessage();
+            
+            if (position == null) {
+                System.out.println("null message");
+            } else {
+                System.out.println(
+                        "id: " + position.getId() +
+                        ", deviceId: " + position.getDeviceId() +
+                        ", valid: " + position.getValid() +
+                        ", time: " + position.getTime() +
+                        ", latitude: " + position.getLatitude() +
+                        ", longitude: " + position.getLongitude() +
+                        ", altitude: " + position.getAltitude() +
+                        ", speed: " + position.getSpeed() +
+                        ", course: " + position.getCourse());
+            }
+
+            // Write position to database
+            try {
+                dataManager.setPosition(position);
+            } catch (Exception error) {
+                System.out.println(error.getMessage());
+            }
+        }
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) {
+        e.getChannel().close();
+    }
+
+}
diff --git a/src/org/traccar/TrackerServer.java b/src/org/traccar/TrackerServer.java
new file mode 100644
index 000000000..20beaec5e
--- /dev/null
+++ b/src/org/traccar/TrackerServer.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar;
+
+import java.net.InetSocketAddress;
+import java.util.concurrent.Executors;
+import org.jboss.netty.bootstrap.ServerBootstrap;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
+import org.jboss.netty.channel.group.ChannelGroup;
+import org.jboss.netty.channel.group.DefaultChannelGroup;
+import org.jboss.netty.channel.group.ChannelGroupFuture;
+
+/**
+ * Tracker server
+ */
+public class TrackerServer extends ServerBootstrap {
+
+    /**
+     * Initialization
+     */
+    private void init(Integer port, Integer threadPoolSize) {
+        
+        setPort(port);
+
+        // Create channel factory
+        setFactory(new NioServerSocketChannelFactory(
+                Executors.newCachedThreadPool(),
+                Executors.newCachedThreadPool()));
+    }
+
+    public TrackerServer(Integer port) {
+        init(port, 1);
+    }
+
+    /**
+     * Server port
+     */
+    private Integer port;
+
+    public Integer getPort() {
+        return port;
+    }
+
+    private void setPort(Integer newPort) {
+        port = newPort;
+    }
+
+    /**
+     * Opened channels
+     */
+    private ChannelGroup allChannels = new DefaultChannelGroup();
+
+    public ChannelGroup getChannelGroup() {
+        return allChannels;
+    }
+    
+    /**
+     * Start server
+     */
+    public void start() {
+        Channel channel = bind(new InetSocketAddress(getPort()));
+        getChannelGroup().add(channel);
+    }
+    
+    /**
+     * Stop server
+     */
+    public void stop() {
+        ChannelGroupFuture future = getChannelGroup().close();
+        future.awaitUninterruptibly();
+        getFactory().releaseExternalResources();
+    }
+
+}
diff --git a/src/org/traccar/helper/NamedParameterStatement.java b/src/org/traccar/helper/NamedParameterStatement.java
new file mode 100644
index 000000000..4e5ffc4fc
--- /dev/null
+++ b/src/org/traccar/helper/NamedParameterStatement.java
@@ -0,0 +1,158 @@
+package net.sourceforge.opentracking.helper;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Timestamp;
+
+import java.util.Map;
+import java.util.HashMap;
+import java.util.List;
+import java.util.LinkedList;
+import java.util.Date;
+
+public class NamedParameterStatement {
+
+    /**
+     * Native statement
+     */
+    private final PreparedStatement statement;
+
+    /**
+     * Index mapping
+     */
+    private final Map indexMap;
+
+    /**
+     * Initialize statement
+     */
+    public NamedParameterStatement(Connection connection, String query)
+            throws SQLException {
+
+        indexMap = new HashMap();
+        String parsedQuery = parse(query, indexMap);
+        statement = connection.prepareStatement(parsedQuery);
+    }
+
+    /**
+     * Parse query
+     */
+    static final String parse(String query, Map paramMap) {
+
+        int length = query.length();
+        StringBuffer parsedQuery = new StringBuffer(length);
+        boolean inSingleQuote = false;
+        boolean inDoubleQuote = false;
+        int index = 1;
+
+        for(int i = 0; i < length; i++) {
+
+            char c = query.charAt(i);
+
+            // String end
+            if (inSingleQuote) {
+                if (c == '\'') inSingleQuote = false;
+            } else if (inDoubleQuote) {
+                if (c == '"') inDoubleQuote = false;
+            } else {
+
+                // String begin
+                if (c == '\'') {
+                    inSingleQuote = true;
+                } else if (c == '"') {
+                    inDoubleQuote = true;
+                } else if (c == ':' && i + 1 < length &&
+                        Character.isJavaIdentifierStart(query.charAt(i + 1))) {
+
+                    // Identifier name
+                    int j = i + 2;
+                    while (j < length && Character.isJavaIdentifierPart(query.charAt(j))) j++;
+
+                    String name = query.substring(i + 1, j);
+                    c = '?';
+                    i += name.length();
+
+                    // Add to list
+                    List indexList = (List) paramMap.get(name);
+                    if (indexList == null) {
+                        indexList = new LinkedList();
+                        paramMap.put(name, indexList);
+                    }
+                    indexList.add(new Integer(index));
+
+                    index++;
+                }
+            }
+
+            parsedQuery.append(c);
+        }
+
+        return parsedQuery.toString();
+    }
+
+    /**
+     * Execute query with result
+     */
+    public ResultSet executeQuery() throws SQLException {
+        return statement.executeQuery();
+    }
+
+
+    /**
+     * Executes query without result
+     */
+    public int executeUpdate() throws SQLException {
+        return statement.executeUpdate();
+    }
+
+    /**
+     * Immediately closes the statement
+     */
+    public void close() throws SQLException {
+        statement.close();
+    }
+
+    public void setInt(String name, int value) throws SQLException {
+
+        List indexList = (List) indexMap.get(name);
+        if (indexList != null) for (Object index: indexList) {
+            statement.setInt((Integer) index, value);
+        }
+    }
+
+    public void setLong(String name, long value) throws SQLException {
+
+        List indexList = (List) indexMap.get(name);
+        if (indexList != null) for (Object index: indexList) {
+            statement.setLong((Integer) index, value);
+        }
+    }
+
+    public void setBoolean(String name, boolean value) throws SQLException {
+
+        List indexList = (List) indexMap.get(name);
+        if (indexList != null) for (Object index: indexList) {
+            statement.setBoolean((Integer) index, value);
+        }
+    }
+
+    public void setDouble(String name, double value) throws SQLException {
+
+        List indexList = (List) indexMap.get(name);
+        if (indexList != null) for (Object index: indexList) {
+            statement.setDouble((Integer) index, value);
+        }
+    }
+
+    public void setTimestamp(String name, Date value) throws SQLException {
+
+        List indexList = (List) indexMap.get(name);
+        if (indexList != null) for (Object index: indexList) {
+            statement.setTimestamp(
+                    (Integer) index,
+                    new Timestamp(value.getTime()));
+        }
+    }
+
+}
diff --git a/src/org/traccar/protocol/gl200/Gl200ProtocolDecoder.java b/src/org/traccar/protocol/gl200/Gl200ProtocolDecoder.java
new file mode 100644
index 000000000..6d0e0a8d9
--- /dev/null
+++ b/src/org/traccar/protocol/gl200/Gl200ProtocolDecoder.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sourceforge.opentracking.protocol.gl200;
+
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.TimeZone;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.oneone.OneToOneDecoder;
+import net.sourceforge.opentracking.Position;
+import net.sourceforge.opentracking.DataManager;
+import org.jboss.netty.channel.ChannelEvent;
+import org.jboss.netty.channel.ChannelState;
+import org.jboss.netty.channel.ChannelStateEvent;
+
+/**
+ * GL200 tracker protocol decoder
+ */
+public class Gl200ProtocolDecoder extends OneToOneDecoder {
+
+    /**
+     * Data manager
+     */
+    private DataManager dataManager;
+
+    /**
+     * Reset connection delay
+     */
+    private Integer resetDelay;
+
+    /**
+     * Init device table
+     */
+    public Gl200ProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+        this.dataManager = dataManager;
+        this.resetDelay = resetDelay;
+    }
+
+    /**
+     * Regular expressions pattern
+     */
+    static private Pattern pattern = Pattern.compile(
+            "\\+RESP:GT...," +
+            "\\d{6}," +                         // Protocol version
+            "(\\d{15})," +                      // IMEI
+            "[^,]*," +                          // Device name
+            "\\d," +                            // Report ID
+            "\\d," +                            // Report type
+            "\\d*," +                           // Number
+            "(\\d*)," +                         // GPS accuracy
+            "(\\d+.\\d)," +                     // Speed
+            "(\\d+)," +                         // Course
+            "(-?\\d+.\\d)," +                   // Altitude
+            "(-?\\d+.\\d+)," +                  // Longitude
+            "(-?\\d+.\\d+)," +                  // Latitude
+            "(\\d{4})(\\d{2})(\\d{2})" +        // Date (YYYYMMDD)
+            "(\\d{2})(\\d{2})(\\d{2})," +       // Time (HHMMSS)
+            "[^$]*");
+
+    /**
+     * Decode message
+     */
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        String sentence = (String) msg;
+
+        // Parse message
+        Matcher parser = pattern.matcher(sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        // Create new position
+        Position position = new Position();
+
+        Integer index = 1;
+
+        // Get device by IMEI
+        String imei = parser.group(index++);
+        position.setDeviceId(dataManager.getDeviceByImei(imei).getId());
+        
+        // Validity
+        position.setValid(Integer.valueOf(parser.group(index++)) == 0 ? false : true);
+        
+        // Position info
+        position.setSpeed(Double.valueOf(parser.group(index++)));
+        position.setCourse(Double.valueOf(parser.group(index++)));
+        position.setAltitude(Double.valueOf(parser.group(index++)));
+        position.setLongitude(Double.valueOf(parser.group(index++)));
+        position.setLatitude(Double.valueOf(parser.group(index++)));
+        
+        // Date
+        Calendar time = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
+        time.clear();
+        time.set(Calendar.YEAR, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
+        time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
+
+        // Time
+        time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
+        position.setTime(time.getTime());
+
+        return position;
+    }
+
+    /**
+     * Disconnect channel
+     */
+    class DisconnectTask extends TimerTask {
+        private Channel channel;
+        
+        public DisconnectTask(Channel channel) {
+            this.channel = channel;
+        }
+        
+        public void run() {
+            channel.disconnect();
+        } 
+    }
+
+    /**
+     * Handle connect event
+     */
+    @Override
+    public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent evt) throws Exception {
+        super.handleUpstream(ctx, evt);
+
+        if (evt instanceof ChannelStateEvent) {
+            ChannelStateEvent event = (ChannelStateEvent) evt;
+
+            if (event.getState() == ChannelState.CONNECTED && event.getValue() != null && resetDelay != 0) {
+                new Timer().schedule(new DisconnectTask(evt.getChannel()), resetDelay);
+            }
+        }
+    }
+
+}
diff --git a/src/org/traccar/protocol/gps103/Gps103ProtocolDecoder.java b/src/org/traccar/protocol/gps103/Gps103ProtocolDecoder.java
new file mode 100644
index 000000000..85e29cc0e
--- /dev/null
+++ b/src/org/traccar/protocol/gps103/Gps103ProtocolDecoder.java
@@ -0,0 +1,180 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sourceforge.opentracking.protocol.gps103;
+
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.TimeZone;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.oneone.OneToOneDecoder;
+import net.sourceforge.opentracking.Position;
+import net.sourceforge.opentracking.DataManager;
+import org.jboss.netty.channel.ChannelEvent;
+import org.jboss.netty.channel.ChannelState;
+import org.jboss.netty.channel.ChannelStateEvent;
+
+/**
+ * Gps 103 tracker protocol decoder
+ */
+public class Gps103ProtocolDecoder extends OneToOneDecoder {
+
+    /**
+     * Data manager
+     */
+    private DataManager dataManager;
+
+    /**
+     * Reset connection delay
+     */
+    private Integer resetDelay;
+
+    /**
+     * Init device table
+     */
+    public Gps103ProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+        this.dataManager = dataManager;
+        this.resetDelay = resetDelay;
+    }
+
+    /**
+     * Regular expressions pattern
+     */
+    static private Pattern pattern = Pattern.compile(
+            "imei:" +
+            "([\\d]+)," +                       // IMEI
+            "[^,]+," +
+            "(\\d{2})(\\d{2})(\\d{2})[\\d]+," + // Date
+            "[+]?[\\d]*," +
+            "[FL]," +                           // F - full / L - low
+            "([\\d]{2})([\\d]{2})([\\d]{2}).([\\d]{3})," + // Time (HHMMSS.SSS)
+            "([AV])," +                         // Validity
+            "([\\d]{2})([\\d]{2}.[\\d]{4})," +  // Latitude (DDMM.MMMM)
+            "([NS])," +
+            "([\\d]{3})([\\d]{2}.[\\d]{4})," +  // Longitude (DDDMM.MMMM)
+            "([EW])," +
+            "([\\d]+.[\\d]{2})," +              // Speed
+            ".*");
+
+    /**
+     * Decode message
+     */
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        String sentence = (String) msg;
+
+        // Send response #1
+        if (sentence.contains("##")) {
+            channel.write("LOAD");
+        }
+        
+        // Send response #2
+        if (sentence.length() == 15 && Character.isDigit(sentence.charAt(0))) {
+            channel.write("ON");
+        }
+
+        // Parse message
+        Matcher parser = pattern.matcher(sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        // Create new position
+        Position position = new Position();
+
+        Integer index = 1;
+
+        // Get device by IMEI
+        String imei = parser.group(index++);
+        position.setDeviceId(dataManager.getDeviceByImei(imei).getId());
+        
+        // Date
+        Calendar time = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
+        time.clear();
+        time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
+        time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
+
+        // Time
+        time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MILLISECOND, Integer.valueOf(parser.group(index++)));
+        position.setTime(time.getTime());
+
+        // Validity
+        position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false);
+
+        // Latitude
+        Double latitude = Double.valueOf(parser.group(index++));
+        latitude += Double.valueOf(parser.group(index++)) / 60;
+        if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
+        position.setLatitude(latitude);
+
+        // Longitude
+        Double lonlitude = Double.valueOf(parser.group(index++));
+        lonlitude += Double.valueOf(parser.group(index++)) / 60;
+        if (parser.group(index++).compareTo("W") == 0) lonlitude = -lonlitude;
+        position.setLongitude(lonlitude);
+        
+        // Altitude
+        position.setAltitude(0.0);
+
+        // Speed
+        position.setSpeed(Double.valueOf(parser.group(index++)));
+        position.setCourse(0.0);
+
+        return position;
+    }
+
+    /**
+     * Disconnect channel
+     */
+    class DisconnectTask extends TimerTask {
+        private Channel channel;
+        
+        public DisconnectTask(Channel channel) {
+            this.channel = channel;
+        }
+        
+        public void run() {
+            channel.disconnect();
+        } 
+    }
+
+    /**
+     * Handle connect event
+     */
+    @Override
+    public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent evt) throws Exception {
+        super.handleUpstream(ctx, evt);
+
+        if (evt instanceof ChannelStateEvent) {
+            ChannelStateEvent event = (ChannelStateEvent) evt;
+
+            if (event.getState() == ChannelState.CONNECTED && event.getValue() != null && resetDelay != 0) {
+                new Timer().schedule(new DisconnectTask(evt.getChannel()), resetDelay);
+            }
+        }
+    }
+
+}
diff --git a/src/org/traccar/protocol/t55/T55ProtocolDecoder.java b/src/org/traccar/protocol/t55/T55ProtocolDecoder.java
new file mode 100644
index 000000000..01954b474
--- /dev/null
+++ b/src/org/traccar/protocol/t55/T55ProtocolDecoder.java
@@ -0,0 +1,200 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sourceforge.opentracking.protocol.t55;
+
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.TimeZone;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.oneone.OneToOneDecoder;
+import net.sourceforge.opentracking.Position;
+import net.sourceforge.opentracking.DataManager;
+import org.jboss.netty.channel.ChannelEvent;
+import org.jboss.netty.channel.ChannelState;
+import org.jboss.netty.channel.ChannelStateEvent;
+
+/**
+ * Gps 103 tracker protocol decoder
+ */
+public class T55ProtocolDecoder extends OneToOneDecoder {
+
+    /**
+     * Data manager
+     */
+    private DataManager dataManager;
+
+    /**
+     * Reset connection delay
+     */
+    private Integer resetDelay;
+    
+    /**
+     * Device ID
+     */
+    private Long deviceId;
+
+    /**
+     * Init device table
+     */
+    public T55ProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+        this.dataManager = dataManager;
+        this.resetDelay = resetDelay;
+    }
+
+    /**
+     * Regular expressions pattern
+     */
+    static private Pattern pattern = Pattern.compile(
+            "\\$GPRMC," +
+            "(\\d{2})(\\d{2})(\\d{2}).(\\d{3})," + // Time (HHMMSS.SSS)
+            "([AV])," +                  // Validity
+            "(\\d{2})(\\d{2}.\\d{4})," + // Latitude (DDMM.MMMM)
+            "([NS])," +
+            "(\\d{3})(\\d{2}.\\d{4})," + // Longitude (DDDMM.MMMM)
+            "([EW])," +
+            "(\\d+.\\d{2})?," +           // Speed
+            "(\\d+.\\d{2})?," +           // Course
+            "(\\d{2})(\\d{2})(\\d{2})" + // Date (DDMMYY)
+            ".+");                     // Other (Checksumm)
+
+    /**
+     * Decode message
+     */
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        String sentence = (String) msg;
+        
+        //System.out.println(sentence);
+
+        // Detect device ID
+        if (sentence.contains("$PGID")) {
+            String imei = sentence.substring(6, 6 + 15);
+            deviceId = dataManager.getDeviceByImei(imei).getId();
+        }
+
+        // Parse message
+        else if (sentence.contains("$GPRMC") && deviceId != null) {
+
+            // Send response
+            if (channel != null) {
+                channel.write("OK1\r\n");
+            }
+
+            // Parse message
+            Matcher parser = pattern.matcher(sentence);
+            if (!parser.matches()) {
+                return null;
+            }
+            
+            // Create new position
+            Position position = new Position();
+            position.setDeviceId(deviceId);
+            
+            Integer index = 1;
+
+            // Time
+            Calendar time = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
+            time.clear();
+            time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
+            time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
+            time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
+            index += 1; // Skip milliseconds
+            position.setTime(time.getTime());
+        
+            // Validity
+            position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false);
+            
+            // Latitude
+            Double latitude = Double.valueOf(parser.group(index++));
+            latitude += Double.valueOf(parser.group(index++)) / 60;
+            if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
+            position.setLatitude(latitude);
+
+            // Longitude
+            Double lonlitude = Double.valueOf(parser.group(index++));
+            lonlitude += Double.valueOf(parser.group(index++)) / 60;
+            if (parser.group(index++).compareTo("W") == 0) lonlitude = -lonlitude;
+            position.setLongitude(lonlitude);
+
+            // Speed
+            String speed = parser.group(index++);
+            if (speed != null) {
+                position.setSpeed(Double.valueOf(speed));
+            } else {
+                position.setSpeed(0.0);
+            }
+
+            // Course
+            String course = parser.group(index++);
+            if (course != null) {
+                position.setCourse(Double.valueOf(course));
+            } else {
+                position.setCourse(0.0);
+            }
+            
+            // Date
+            time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
+            time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
+            time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
+            
+            // Altitude
+            position.setAltitude(0.0);
+            
+            return position;
+        }
+
+        return null;
+    }
+
+    /**
+     * Disconnect channel
+     */
+    class DisconnectTask extends TimerTask {
+        private Channel channel;
+
+        public DisconnectTask(Channel channel) {
+            this.channel = channel;
+        }
+
+        public void run() {
+            channel.disconnect();
+        }
+    }
+
+    /**
+     * Handle connect event
+     */
+    @Override
+    public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent evt) throws Exception {
+        super.handleUpstream(ctx, evt);
+
+        if (evt instanceof ChannelStateEvent) {
+            ChannelStateEvent event = (ChannelStateEvent) evt;
+
+            if (event.getState() == ChannelState.CONNECTED && event.getValue() != null && resetDelay != 0) {
+                new Timer().schedule(new DisconnectTask(evt.getChannel()), resetDelay);
+            }
+        }
+    }
+
+}
diff --git a/src/org/traccar/protocol/tk103/Tk103ProtocolDecoder.java b/src/org/traccar/protocol/tk103/Tk103ProtocolDecoder.java
new file mode 100644
index 000000000..12108b121
--- /dev/null
+++ b/src/org/traccar/protocol/tk103/Tk103ProtocolDecoder.java
@@ -0,0 +1,175 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sourceforge.opentracking.protocol.tk103;
+
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.TimeZone;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.oneone.OneToOneDecoder;
+import net.sourceforge.opentracking.Position;
+import net.sourceforge.opentracking.DataManager;
+import org.jboss.netty.channel.ChannelEvent;
+import org.jboss.netty.channel.ChannelState;
+import org.jboss.netty.channel.ChannelStateEvent;
+
+/**
+ * Gps 103 tracker protocol decoder
+ */
+public class Tk103ProtocolDecoder extends OneToOneDecoder {
+
+    /**
+     * Data manager
+     */
+    private DataManager dataManager;
+
+    /**
+     * Reset connection delay
+     */
+    private Integer resetDelay;
+
+    /**
+     * Init device table
+     */
+    public Tk103ProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+        this.dataManager = dataManager;
+        this.resetDelay = resetDelay;
+    }
+
+    /**
+     * Regular expressions pattern
+     */
+    static private Pattern pattern = Pattern.compile(
+            "\\(" +
+            "(\\d+)" +                   // Device ID
+            "(.{4})" +                   // Command
+            "(\\d{15})" +                // IMEI (?)
+            "(\\d{2})(\\d{2})(\\d{2})" + // Date (YYMMDD)
+            "([AV])" +                   // Validity
+            "(\\d{2})(\\d{2}.\\d{4})" +  // Latitude (DDMM.MMMM)
+            "([NS])" +
+            "(\\d{3})(\\d{2}.\\d{4})" +  // Longitude (DDDMM.MMMM)
+            "([EW])" +
+            "(\\d+.\\d)" +               // Speed
+            "(\\d{2})(\\d{2})(\\d{2})" + // Time (HHMMSS)
+            "(\\d+.\\d{2})" +            // Course
+            "(\\d+)" +                   // State
+            ".+");                       // Mileage (?)
+
+    /**
+     * Decode message
+     */
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        String sentence = (String) msg;
+
+        // TODO: Send response (?)
+
+        // Parse message
+        Matcher parser = pattern.matcher(sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        // Create new position
+        Position position = new Position();
+
+        Integer index = 1;
+        index += 2; // Skip Device ID and command
+
+        // Get device by IMEI
+        String imei = parser.group(index++);
+        position.setDeviceId(dataManager.getDeviceByImei(imei).getId());
+
+        // Date
+        Calendar time = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
+        time.clear();
+        time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
+        time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
+
+        // Validity
+        position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false);
+
+        // Latitude
+        Double latitude = Double.valueOf(parser.group(index++));
+        latitude += Double.valueOf(parser.group(index++)) / 60;
+        if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
+        position.setLatitude(latitude);
+
+        // Longitude
+        Double lonlitude = Double.valueOf(parser.group(index++));
+        lonlitude += Double.valueOf(parser.group(index++)) / 60;
+        if (parser.group(index++).compareTo("W") == 0) lonlitude = -lonlitude;
+        position.setLongitude(lonlitude);
+
+        // Altitude
+        position.setAltitude(0.0);
+
+        // Speed
+        position.setSpeed(Double.valueOf(parser.group(index++)));
+
+        // Time
+        time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
+        position.setTime(time.getTime());
+
+        // Course
+        position.setCourse(Double.valueOf(parser.group(index++)));
+
+        return position;
+    }
+
+    /**
+     * Disconnect channel
+     */
+    class DisconnectTask extends TimerTask {
+        private Channel channel;
+
+        public DisconnectTask(Channel channel) {
+            this.channel = channel;
+        }
+
+        public void run() {
+            channel.disconnect();
+        }
+    }
+
+    /**
+     * Handle connect event
+     */
+    @Override
+    public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent evt) throws Exception {
+        super.handleUpstream(ctx, evt);
+
+        if (evt instanceof ChannelStateEvent) {
+            ChannelStateEvent event = (ChannelStateEvent) evt;
+
+            if (event.getState() == ChannelState.CONNECTED && event.getValue() != null && resetDelay != 0) {
+                new Timer().schedule(new DisconnectTask(evt.getChannel()), resetDelay);
+            }
+        }
+    }
+
+}
diff --git a/src/org/traccar/protocol/xexun/XexunFrameDecoder.java b/src/org/traccar/protocol/xexun/XexunFrameDecoder.java
new file mode 100644
index 000000000..839e5b3ec
--- /dev/null
+++ b/src/org/traccar/protocol/xexun/XexunFrameDecoder.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sourceforge.opentracking.protocol.xexun;
+
+import org.jboss.netty.handler.codec.frame.FrameDecoder;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.buffer.ChannelBuffer;
+
+public class XexunFrameDecoder extends FrameDecoder {
+
+    /**
+     * Find string in network buffer
+     */
+    private static Integer find(
+            ChannelBuffer buf,
+            Integer start,
+            Integer length,
+            String subString) {
+
+        int index = start;
+        boolean match;
+
+        for (; index < length; index++) {
+            match = true;
+
+            for (int i = 0; i < subString.length(); i++) {
+                char c = (char) buf.getByte(index + i);
+                if (c != subString.charAt(i)) {
+                    match = false;
+                    break;
+                }
+            }
+
+            if (match) {
+                return index;
+            }
+        }
+
+        return null;
+    }
+
+    protected Object decode(
+            ChannelHandlerContext ctx,
+            Channel channel,
+            ChannelBuffer buf) throws Exception {
+
+        // Check minimum length
+        int length = buf.readableBytes();
+        if (length < 100) {
+            return null;
+        }
+
+        // Find start
+        Integer beginIndex = find(buf, 0, length, "GPRMC");
+        if (beginIndex == null) {
+            return null;
+        }
+
+        // Find identifier
+        Integer idIndex = find(buf, beginIndex, length, "imei:");
+        if (idIndex == null) {
+            return null;
+        }
+
+        // Find end
+        Integer endIndex = find(buf, idIndex, length, ",");
+        if (endIndex == null) {
+            return null;
+        }
+
+        // Read buffer
+        buf.skipBytes(beginIndex);
+        ChannelBuffer frame = buf.readBytes(endIndex - beginIndex + 1);
+
+        return frame;
+    }
+
+}
diff --git a/src/org/traccar/protocol/xexun/XexunProtocolDecoder.java b/src/org/traccar/protocol/xexun/XexunProtocolDecoder.java
new file mode 100644
index 000000000..872569e1a
--- /dev/null
+++ b/src/org/traccar/protocol/xexun/XexunProtocolDecoder.java
@@ -0,0 +1,175 @@
+/*
+ * Copyright 2010 Anton Tananaev (anton@tananaev.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sourceforge.opentracking.protocol.xexun;
+
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import java.text.ParseException;
+import java.util.TimeZone;
+import java.util.Timer;
+import java.util.TimerTask;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.oneone.OneToOneDecoder;
+import net.sourceforge.opentracking.Position;
+import net.sourceforge.opentracking.DataManager;
+import org.jboss.netty.channel.ChannelEvent;
+import org.jboss.netty.channel.ChannelState;
+import org.jboss.netty.channel.ChannelStateEvent;
+
+/**
+ * Xexun tracker protocol decoder
+ */
+public class XexunProtocolDecoder extends OneToOneDecoder {
+
+    /**
+     * Data manager
+     */
+    private DataManager dataManager;
+
+    /**
+     * Reset connection delay
+     */
+    private Integer resetDelay;
+
+    /**
+     * Init device table
+     */
+    public XexunProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+        this.dataManager = dataManager;
+        this.resetDelay = resetDelay;
+    }
+
+    /**
+     * Regular expressions pattern
+     */
+    static private Pattern pattern = Pattern.compile(
+            "GPRMC," +
+            "([\\d]{2})([\\d]{2})([\\d]{2}).([\\d]{3})," + // Time (HHMMSS.SSS)
+            "([AV])," +                         // Validity
+            "([\\d]{2})([\\d]{2}.[\\d]{4})," +  // Latitude (DDMM.MMMM)
+            "([NS])," +
+            "([\\d]{3})([\\d]{2}.[\\d]{4})," +  // Longitude (DDDMM.MMMM)
+            "([EW])," +
+            "([\\d]+.[\\d]+)," +                // Speed
+            "([\\d]+.[\\d]+)?," +               // Course
+            "([\\d]{2})([\\d]{2})([\\d]{2})," + // Date (DDMMYY)
+            ".*imei:" +
+            "([\\d]+),");                       // IMEI
+
+    /**
+     * Decode message
+     */
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        // Parse message
+        String sentence = (String) msg;
+        Matcher parser = pattern.matcher(sentence);
+        if (!parser.matches()) {
+            throw new ParseException(null, 0);
+        }
+
+        // Create new position
+        Position position = new Position();
+
+        Integer index = 1;
+
+        // Time
+        Calendar time = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
+        time.clear();
+        time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MILLISECOND, Integer.valueOf(parser.group(index++)));
+
+        // Validity
+        position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false);
+
+        // Latitude
+        Double latitude = Double.valueOf(parser.group(index++));
+        latitude += Double.valueOf(parser.group(index++)) / 60;
+        if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
+        position.setLatitude(latitude);
+
+        // Longitude
+        Double lonlitude = Double.valueOf(parser.group(index++));
+        lonlitude += Double.valueOf(parser.group(index++)) / 60;
+        if (parser.group(index++).compareTo("W") == 0) lonlitude = -lonlitude;
+        position.setLongitude(lonlitude);
+
+        // Altitude
+        position.setAltitude(0.0);
+        
+        // Speed
+        position.setSpeed(Double.valueOf(parser.group(index++)));
+
+        // Course
+        String course = parser.group(index++);
+        if (course != null) {
+            position.setCourse(Double.valueOf(course));
+        } else {
+            position.setCourse(0.0);
+        }
+
+        // Date
+        time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
+        time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
+        position.setTime(time.getTime());
+
+        // Get device by IMEI
+        String imei = parser.group(index++);
+        position.setDeviceId(dataManager.getDeviceByImei(imei).getId());
+
+        return position;
+    }
+
+    /**
+     * Disconnect channel
+     */
+    class DisconnectTask extends TimerTask {
+        private Channel channel;
+
+        public DisconnectTask(Channel channel) {
+            this.channel = channel;
+        }
+
+        public void run() {
+            channel.disconnect();
+        }
+    }
+
+    /**
+     * Handle connect event
+     */
+    @Override
+    public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent evt) throws Exception {
+        super.handleUpstream(ctx, evt);
+
+        if (evt instanceof ChannelStateEvent) {
+            ChannelStateEvent event = (ChannelStateEvent) evt;
+
+            if (event.getState() == ChannelState.CONNECTED && event.getValue() != null && resetDelay != 0) {
+                new Timer().schedule(new DisconnectTask(evt.getChannel()), resetDelay);
+            }
+        }
+    }
+
+}