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-rw-r--r--src/org/traccar/ServerManager.java12
-rw-r--r--src/org/traccar/protocol/MeitrackFrameDecoder.java49
-rw-r--r--src/org/traccar/protocol/MeitrackProtocolDecoder.java110
3 files changed, 158 insertions, 13 deletions
diff --git a/src/org/traccar/ServerManager.java b/src/org/traccar/ServerManager.java
index 1a3cf0a00..6d65dad18 100644
--- a/src/org/traccar/ServerManager.java
+++ b/src/org/traccar/ServerManager.java
@@ -519,17 +519,15 @@ public class ServerManager {
private void initMeitrackServer(String protocol) throws SQLException {
if (isProtocolEnabled(properties, protocol)) {
- serverList.add(new TrackerServer(this, new ServerBootstrap(), protocol) {
+ TrackerServer server = new TrackerServer(this, new ServerBootstrap(), protocol) {
@Override
protected void addSpecificHandlers(ChannelPipeline pipeline) {
- 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("frameDecoder", new MeitrackFrameDecoder());
pipeline.addLast("objectDecoder", new MeitrackProtocolDecoder(ServerManager.this));
}
- });
+ };
+ server.setEndianness(ByteOrder.LITTLE_ENDIAN);
+ serverList.add(server);
}
}
diff --git a/src/org/traccar/protocol/MeitrackFrameDecoder.java b/src/org/traccar/protocol/MeitrackFrameDecoder.java
new file mode 100644
index 000000000..f7dda10e2
--- /dev/null
+++ b/src/org/traccar/protocol/MeitrackFrameDecoder.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2014 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 MeitrackFrameDecoder extends FrameDecoder {
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx,
+ Channel channel,
+ ChannelBuffer buf) throws Exception {
+
+ if (buf.readableBytes() < 10) {
+ return null;
+ }
+
+ Integer index = ChannelBufferTools.find(buf, 0, buf.readableBytes(), ",");
+ if (index != null)
+ {
+ int length = index + Integer.valueOf(buf.toString(3, index - 3, Charset.defaultCharset()));
+ if (buf.readableBytes() >= length) {
+ return buf.readBytes(length);
+ }
+ }
+
+ return null;
+ }
+
+}
diff --git a/src/org/traccar/protocol/MeitrackProtocolDecoder.java b/src/org/traccar/protocol/MeitrackProtocolDecoder.java
index e2f31b207..ab12d510b 100644
--- a/src/org/traccar/protocol/MeitrackProtocolDecoder.java
+++ b/src/org/traccar/protocol/MeitrackProtocolDecoder.java
@@ -15,14 +15,20 @@
*/
package org.traccar.protocol;
+import java.nio.charset.Charset;
import java.util.Calendar;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.List;
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;
@@ -61,13 +67,10 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
"(\\p{XDigit}+)," + // Power
".*"); // TODO: parse other stuff
- @Override
- protected Object decode(
- ChannelHandlerContext ctx, Channel channel, Object msg)
- throws Exception {
+ private Position decodeRegularMessage(ChannelBuffer buf) {
// Parse message
- String sentence = (String) msg;
+ String sentence = buf.toString(Charset.defaultCharset());
Matcher parser = pattern.matcher(sentence);
if (!parser.matches()) {
return null;
@@ -79,7 +82,7 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
Integer index = 1;
- // Get device by IMEI
+ // Identification
String imei = parser.group(index++);
try {
position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
@@ -149,4 +152,99 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
return position;
}
+ private List<Position> decodeBinaryMessage(ChannelBuffer buf) {
+ List<Position> positions = new LinkedList<Position>();
+
+ Integer index = ChannelBufferTools.find(buf, 0, buf.readableBytes(), ",");
+
+ // Identification
+ long deviceId;
+ String imei = buf.toString(index + 1, 15, Charset.defaultCharset());
+ try {
+ deviceId = getDataManager().getDeviceByImei(imei).getId();
+ } catch(Exception error) {
+ Log.warning("Unknown device - " + imei);
+ return null;
+ }
+
+ buf.skipBytes(index + 1 + 15 + 1 + 3 + 1 + 2 + 2 + 4);
+
+ while (buf.readableBytes() >= 0x34) {
+
+ Position position = new Position();
+ ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter("meitrack");
+ position.setDeviceId(deviceId);
+
+ // Event
+ extendedInfo.set("event", buf.readUnsignedByte());
+
+ // Location
+ position.setLatitude(buf.readInt() * 0.000001);
+ position.setLongitude(buf.readInt() * 0.000001);
+
+ // Time (946684800 - timestamp for 2000-01-01)
+ position.setTime(new Date((946684800 + buf.readUnsignedInt()) * 1000));
+
+ // Validity
+ position.setValid(buf.readUnsignedByte() == 1);
+
+ // Satellites
+ extendedInfo.set("satellites", buf.readUnsignedByte());
+
+ // GSM Signal
+ extendedInfo.set("gsm", buf.readUnsignedByte());
+
+ // Speed
+ position.setSpeed(buf.readUnsignedShort() * 0.539957);
+
+ // Course
+ position.setCourse((double) buf.readUnsignedShort());
+
+ // HDOP
+ extendedInfo.set("hdop", buf.readUnsignedShort() * 0.1);
+
+ // Altitude
+ position.setAltitude((double) buf.readUnsignedShort());
+
+ // Other
+ extendedInfo.set("milage", buf.readUnsignedInt());
+ extendedInfo.set("runtime", buf.readUnsignedInt());
+ extendedInfo.set("cell",
+ buf.readUnsignedShort() + "|" + buf.readUnsignedShort() + "|" +
+ buf.readUnsignedShort() + "|" + buf.readUnsignedShort());
+ extendedInfo.set("state", buf.readUnsignedShort());
+
+ // ADC
+ extendedInfo.set("adc1", buf.readUnsignedShort());
+ extendedInfo.set("battery", buf.readUnsignedShort() * 0.01);
+ extendedInfo.set("power", buf.readUnsignedShort());
+
+ buf.readUnsignedInt(); // geo-fence
+
+ position.setExtendedInfo(extendedInfo.toString());
+ positions.add(position);
+ }
+
+ return positions;
+ }
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, Object msg)
+ throws Exception {
+
+ ChannelBuffer buf = (ChannelBuffer) msg;
+
+ // Find type
+ Integer index = ChannelBufferTools.find(buf, 0, buf.readableBytes(), ",");
+ index = ChannelBufferTools.find(buf, index + 1, buf.readableBytes(), ",");
+
+ String type = buf.toString(index + 1, 3, Charset.defaultCharset());
+ if (type.equals("CCC")) {
+ return decodeBinaryMessage(buf);
+ } else {
+ return decodeRegularMessage(buf);
+ }
+ }
+
}
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