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authorAnton Tananaev <anton.tananaev@gmail.com>2013-01-30 21:24:36 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2013-01-30 21:24:36 +1300
commit9695184ea5d6bafd521d815e4dd994ca61f04558 (patch)
tree5f995dd28b2c6140eed0a15f70d5c1877ecb3133 /src
parent7881ce7a3dd49b29b3a97781233beffcac08d07d (diff)
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Workaround for meiligao protocol (fix #130)
Diffstat (limited to 'src')
-rw-r--r--src/org/traccar/ServerManager.java2
-rw-r--r--src/org/traccar/protocol/MeiligaoFrameDecoder.java50
-rw-r--r--src/org/traccar/protocol/MeiligaoProtocolDecoder.java18
3 files changed, 52 insertions, 18 deletions
diff --git a/src/org/traccar/ServerManager.java b/src/org/traccar/ServerManager.java
index 2fb9f3f6b..aa30bab30 100644
--- a/src/org/traccar/ServerManager.java
+++ b/src/org/traccar/ServerManager.java
@@ -369,7 +369,7 @@ public class ServerManager {
serverList.add(new TrackerServer(this, new ServerBootstrap(), protocol) {
@Override
protected void addSpecificHandlers(ChannelPipeline pipeline) {
- pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(1024, 2, 2, -4, 4));
+ pipeline.addLast("frameDecoder", new MeiligaoFrameDecoder());
pipeline.addLast("objectDecoder", new MeiligaoProtocolDecoder(ServerManager.this));
}
});
diff --git a/src/org/traccar/protocol/MeiligaoFrameDecoder.java b/src/org/traccar/protocol/MeiligaoFrameDecoder.java
new file mode 100644
index 000000000..ad1db6c89
--- /dev/null
+++ b/src/org/traccar/protocol/MeiligaoFrameDecoder.java
@@ -0,0 +1,50 @@
+/*
+ * 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 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;
+
+public class MeiligaoFrameDecoder extends FrameDecoder {
+
+ private static final int MESSAGE_HEADER = 4;
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx,
+ Channel channel,
+ ChannelBuffer buf) throws Exception {
+
+ // Strip not '$' (0x24) bytes from the beginning
+ while (buf.readable() && buf.getUnsignedByte(buf.readerIndex()) != 0x24) {
+ buf.readByte();
+ }
+
+ // Check length and return buffer
+ if (buf.readableBytes() >= MESSAGE_HEADER) {
+ int length = buf.getUnsignedShort(buf.readerIndex() + 2);
+ if (buf.readableBytes() >= length) {
+ buf.skipBytes(MESSAGE_HEADER);
+ return buf.readBytes(length - MESSAGE_HEADER);
+ }
+ }
+
+ return null;
+ }
+
+}
diff --git a/src/org/traccar/protocol/MeiligaoProtocolDecoder.java b/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
index 98e4b5ef1..f40d64b26 100644
--- a/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
+++ b/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
@@ -29,18 +29,10 @@ import org.traccar.BaseProtocolDecoder;
import org.traccar.ServerManager;
import org.traccar.helper.Crc;
import org.traccar.helper.Log;
-import org.traccar.model.DataManager;
-import org.traccar.model.Device;
import org.traccar.model.Position;
-/**
- * Meiligao protocol decoder
- */
public class MeiligaoProtocolDecoder extends BaseProtocolDecoder {
- /**
- * Initialize
- */
public MeiligaoProtocolDecoder(ServerManager serverManager) {
super(serverManager);
}
@@ -48,10 +40,6 @@ public class MeiligaoProtocolDecoder extends BaseProtocolDecoder {
/**
* Regular expressions pattern
*/
- // | HDOP | Altitude | State | AD| BASE ID | CSQ | Journey
- //"191020.000,A,2438.1016,S,02553.3551,E,0.00,,150113,,,A*69 |1.7|1009|"
- //"020600.930,A,2309.2051,N,11318.8449,E,0.00,0.00,090710,,,A*6A|2.6|96.7|0000|0000,3FFF|000000000"
- //"155422.000,V,2230.7623,N,11403.4218,E,0.00,0,060211,,*1A |0.0|26 |0000|0000,0000|0000000000000000|63|00000000"
static private Pattern pattern = Pattern.compile(
"(\\d{2})(\\d{2})(\\d{2})\\.(\\d{3})," + // Time (HHMMSS.SSS)
"([AV])," + // Validity
@@ -142,13 +130,9 @@ public class MeiligaoProtocolDecoder extends BaseProtocolDecoder {
StringBuilder extendedInfo = new StringBuilder("<protocol>meiligao</protocol>");
// Get device by id
- // TODO: change imei to unique id
String id = getId(buf);
try {
- DataManager dm = getDataManager();
- Device d = dm.getDeviceByImei(id);
- d.getId();
- //position.setDeviceId(getDataManager().getDeviceByImei(id).getId());
+ position.setDeviceId(getDataManager().getDeviceByImei(id).getId());
} catch(Exception error) {
Log.warning("Unknown device - " + id);
return null;