Support TianQIN protocol

3 files changed, 158 insertions, 16 deletions

diff --git a/src/org/traccar/ServerManager.java b/src/org/traccar/ServerManager.java
index 95f8c7b58..d149e3ea8 100644
--- a/src/org/traccar/ServerManager.java
+++ b/src/org/traccar/ServerManager.java
@@ -401,10 +401,7 @@ public class ServerManager {
             serverList.add(new TrackerServer(this, new ServerBootstrap(), protocol) {
                 @Override
                 protected void addSpecificHandlers(ChannelPipeline pipeline) {
-                    byte delimiter[] = { (byte) '#' };
-                    pipeline.addLast("frameDecoder",
-                            new DelimiterBasedFrameDecoder(1024, ChannelBuffers.wrappedBuffer(delimiter)));
-                    pipeline.addLast("stringDecoder", new StringDecoder());
+                    pipeline.addLast("frameDecoder", new H02FrameDecoder());
                     pipeline.addLast("objectDecoder", new H02ProtocolDecoder(ServerManager.this));
                 }
             });
diff --git a/src/org/traccar/protocol/H02FrameDecoder.java b/src/org/traccar/protocol/H02FrameDecoder.java
new file mode 100644
index 000000000..ef28e9986
--- /dev/null
+++ b/src/org/traccar/protocol/H02FrameDecoder.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2013 Anton Tananaev (anton.tananaev@gmail.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.protocol;
+
+import java.nio.charset.Charset;
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.frame.FrameDecoder;
+import org.traccar.helper.ChannelBufferTools;
+
+public class H02FrameDecoder extends FrameDecoder {
+    
+    private static final int MESSAGE_LENGTH = 32;
+
+    @Override
+    protected Object decode(
+            ChannelHandlerContext ctx,
+            Channel channel,
+            ChannelBuffer buf) throws Exception {
+        
+        String marker = buf.toString(buf.readerIndex(), 1, Charset.defaultCharset());
+        if (marker.equals("*")) {
+
+            // Return text message
+            Integer index = ChannelBufferTools.find(buf, buf.readerIndex(), buf.readableBytes(), "#");
+            if (index != null) {
+                return buf.readBytes(index + 1 - buf.readerIndex());
+            }
+            
+        } else if (marker.equals("$")) {
+
+            // Return binary message
+            if (buf.readableBytes() >= MESSAGE_LENGTH) {
+                return buf.readBytes(MESSAGE_LENGTH);
+            }
+            
+        }
+
+        return null;
+    }
+
+}
diff --git a/src/org/traccar/protocol/H02ProtocolDecoder.java b/src/org/traccar/protocol/H02ProtocolDecoder.java
index b997d5e28..7bf589bef 100644
--- a/src/org/traccar/protocol/H02ProtocolDecoder.java
+++ b/src/org/traccar/protocol/H02ProtocolDecoder.java
@@ -15,14 +15,17 @@
  */
 package org.traccar.protocol;
 
+import java.nio.charset.Charset;
 import java.util.Calendar;
 import java.util.TimeZone;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import org.jboss.netty.buffer.ChannelBuffer;
 import org.jboss.netty.channel.Channel;
 import org.jboss.netty.channel.ChannelHandlerContext;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.ServerManager;
+import org.traccar.helper.ChannelBufferTools;
 import org.traccar.helper.Log;
 import org.traccar.model.ExtendedInfoFormatter;
 import org.traccar.model.Position;
@@ -32,14 +35,83 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
     public H02ProtocolDecoder(ServerManager serverManager) {
         super(serverManager);
     }
+    
+    private static double readCoordinate(ChannelBuffer buf, boolean lon) {
+        
+        int degrees = ChannelBufferTools.readHexInteger(buf, 2);
+        if (lon) {
+            degrees = degrees * 10 + (buf.getByte(buf.readerIndex()) >> 4);
+        }
+        
+        double result = 0;
+        if (lon) {
+            result = buf.readUnsignedByte() & 0x0f;
+        }
+        result = result * 10 + ChannelBufferTools.readHexInteger(buf, lon ? 5 : 6) * 0.0001;
+        
+        result /= 60;
+        result += degrees;
+
+        return result;
+    }
+    
+    private Position decodeBinary(ChannelBuffer buf) {
+        
+        // Create new position
+        Position position = new Position();
+        ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter("h02");
+        
+        buf.readByte(); // marker
+
+        // Identification
+        String id = String.valueOf(
+                (buf.readUnsignedInt() << 8) + buf.readUnsignedByte());
+        try {
+            position.setDeviceId(getDataManager().getDeviceByImei(id).getId());
+        } catch(Exception error) {
+            Log.warning("Unknown device - " + id);
+            return null;
+        }
+        
+        // Time
+        Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+        time.clear();
+        time.set(Calendar.HOUR, ChannelBufferTools.readHexInteger(buf, 2));
+        time.set(Calendar.MINUTE, ChannelBufferTools.readHexInteger(buf, 2));
+        time.set(Calendar.SECOND, ChannelBufferTools.readHexInteger(buf, 2));
+        time.set(Calendar.DAY_OF_MONTH, ChannelBufferTools.readHexInteger(buf, 2));
+        time.set(Calendar.MONTH, ChannelBufferTools.readHexInteger(buf, 2) - 1);
+        time.set(Calendar.YEAR, 2000 + ChannelBufferTools.readHexInteger(buf, 2));
+        position.setTime(time.getTime());
+        
+        // Location
+        double latitude = readCoordinate(buf, false);
+        int x = buf.readByte(); // reserved
+        double longitude = readCoordinate(buf, true);
+        int flags = buf.readUnsignedByte() & 0x0f;
+        position.setValid((flags & 0x02) != 0);
+        if ((flags & 0x04) == 0) latitude = -latitude;
+        if ((flags & 0x08) == 0) longitude = -longitude;
+        position.setLatitude(latitude);
+        position.setLongitude(longitude);
+        position.setAltitude(0.0);
+
+        // Speed and course
+        position.setSpeed((double) ChannelBufferTools.readHexInteger(buf, 3));
+        position.setCourse((buf.readUnsignedByte() & 0x0f) * 100.0 + ChannelBufferTools.readHexInteger(buf, 2));
+        
+        // Status
+        extendedInfo.set("status", ChannelBufferTools.readHexString(buf, 8));
+        
+        position.setExtendedInfo(extendedInfo.toString());
+        return position;
+    }
 
-    /**
-     * Regular expressions pattern
-     */
     static private Pattern pattern = Pattern.compile(
-    	    "\\*HQ," +
+    	    "\\*..," +                          // Manufacturer
             "(\\d+)," +                         // IMEI
             "V\\d," +                           // Version?
+            ".*" +
             "(\\d{2})(\\d{2})(\\d{2})," +       // Time (HHMMSS)
             "([AV])," +                         // Validity
             "(\\d+)(\\d{2}.\\d{4})," +          // Latitude (DDMM.MMMM)
@@ -49,15 +121,12 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
             "(\\d+.\\d+)," +                    // Speed
             "(\\d+.\\d+)?," +                   // Course
             "(\\d{2})(\\d{2})(\\d{2})," +       // Date (DDMMYY)
+            "(\\p{XDigit}{8})" +                // Status
             ".*");
-
-    @Override
-    protected Object decode(
-            ChannelHandlerContext ctx, Channel channel, Object msg)
-            throws Exception {
+    
+    private Position decodeText(String sentence) {
 
         // Parse message
-        String sentence = (String) msg;
         Matcher parser = pattern.matcher(sentence);
         if (!parser.matches()) {
             return null;
@@ -119,11 +188,31 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
         time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
         time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
         position.setTime(time.getTime());
+        
+        // Status
+        extendedInfo.set("status", parser.group(index++));
 
-        // Extended info
         position.setExtendedInfo(extendedInfo.toString());
-
         return position;
     }
 
+    @Override
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+        
+        ChannelBuffer buf = (ChannelBuffer) msg;
+        String marker = buf.toString(0, 1, Charset.defaultCharset());
+        
+        // TODO X mode?
+
+        if (marker.equals("*")) {
+            return decodeText(buf.toString(Charset.defaultCharset()));
+        } else if (marker.equals("$")) {
+            return decodeBinary(buf);
+        }
+
+        return null;
+    }
+
 }