Implement TZone protocol

1 files changed, 96 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/TzoneProtocolDecoder.java b/src/org/traccar/protocol/TzoneProtocolDecoder.java
new file mode 100644
index 000000000..f67c9684f
--- /dev/null
+++ b/src/org/traccar/protocol/TzoneProtocolDecoder.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2015 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.net.SocketAddress;
+import java.util.Calendar;
+import java.util.TimeZone;
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.ChannelBufferTools;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+public class TzoneProtocolDecoder extends BaseProtocolDecoder {
+
+    public TzoneProtocolDecoder(TzoneProtocol protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg)
+            throws Exception {
+
+        ChannelBuffer buf = (ChannelBuffer) msg;
+
+        buf.skipBytes(2); // header
+        buf.readUnsignedShort(); // length
+        buf.readUnsignedShort(); // type
+        buf.readUnsignedShort(); // model
+        buf.readUnsignedInt(); // firmware
+        
+        String imei = ChannelBufferTools.readHexString(buf, 16).substring(1);
+        if (!identify(imei, channel)) {
+            return null;
+        }
+        
+        buf.skipBytes(6); // device time
+
+        Position position = new Position();
+        position.setProtocol(getProtocolName());
+        position.setDeviceId(getDeviceId());
+
+        int blockLength = buf.readUnsignedShort();
+        int blockEnd = buf.readerIndex() + blockLength;
+        
+        if (blockLength == 0) {
+            return null;
+        }
+        
+        position.set(Event.KEY_SATELLITES, buf.readUnsignedByte());
+        
+        double lat = buf.readUnsignedInt() / 600000.0;
+        double lon = buf.readUnsignedInt() / 600000.0;
+        
+        Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+        time.clear();
+        time.set(Calendar.YEAR, 2000 + buf.readUnsignedByte());
+        time.set(Calendar.MONTH, buf.readUnsignedByte() - 1);
+        time.set(Calendar.DAY_OF_MONTH, buf.readUnsignedByte());
+        time.set(Calendar.HOUR_OF_DAY, buf.readUnsignedByte());
+        time.set(Calendar.MINUTE, buf.readUnsignedByte());
+        time.set(Calendar.SECOND, buf.readUnsignedByte());
+        position.setTime(time.getTime());
+        
+        position.setSpeed(buf.readUnsignedShort() * 0.01);
+        
+        position.set(Event.KEY_ODOMETER, buf.readUnsignedMedium());
+        
+        int flags = buf.readUnsignedShort();
+        position.setCourse(BitUtil.range(flags, 0, 9));
+        position.setLatitude(BitUtil.check(flags, 10) ? lat : -lat);
+        position.setLongitude(BitUtil.check(flags, 9) ? -lon : lon);
+        position.setValid(BitUtil.check(flags, 11));
+        
+        buf.readerIndex(blockEnd);
+
+        return position;
+    }
+
+}