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-rw-r--r--src/org/traccar/protocol/Gt02ProtocolDecoder.java4
-rw-r--r--src/org/traccar/protocol/Gt06ProtocolDecoder.java171
-rw-r--r--src/org/traccar/protocol/MeiligaoProtocolDecoder.java4
3 files changed, 173 insertions, 6 deletions
diff --git a/src/org/traccar/protocol/Gt02ProtocolDecoder.java b/src/org/traccar/protocol/Gt02ProtocolDecoder.java
index f6d6d576b..69d54cb5b 100644
--- a/src/org/traccar/protocol/Gt02ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gt02ProtocolDecoder.java
@@ -17,8 +17,6 @@ package org.traccar.protocol;
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.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
@@ -116,7 +114,7 @@ public class Gt02ProtocolDecoder extends GenericProtocolDecoder {
// Speed
position.setSpeed((double) buf.readUnsignedByte());
- // Speed
+ // Course
position.setCourse((double) buf.readUnsignedShort());
buf.skipBytes(3); // reserved
diff --git a/src/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
new file mode 100644
index 000000000..1daf6c4ec
--- /dev/null
+++ b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -0,0 +1,171 @@
+/*
+ * Copyright 2012 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.util.Calendar;
+import java.util.TimeZone;
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.traccar.GenericProtocolDecoder;
+import org.traccar.helper.Crc;
+import org.traccar.helper.Log;
+import org.traccar.model.DataManager;
+import org.traccar.model.Position;
+
+/**
+ * T55 tracker protocol decoder
+ */
+public class Gt06ProtocolDecoder extends GenericProtocolDecoder {
+
+ private Long deviceId;
+
+ /**
+ * Initialize
+ */
+ public Gt06ProtocolDecoder(DataManager dataManager) {
+ super(dataManager);
+ }
+
+ private String readImei(ChannelBuffer buf) {
+ int b = buf.readUnsignedByte();
+ StringBuilder imei = new StringBuilder();
+ imei.append(b & 0x0F);
+ for (int i = 0; i < 7; i++) {
+ b = buf.readUnsignedByte();
+ imei.append((b & 0xF0) >> 4);
+ imei.append(b & 0x0F);
+ }
+ return imei.toString();
+ }
+
+ private static final int MSG_LOGIN = 0x01;
+ private static final int MSG_DATA = 0x12;
+ private static final int MSG_HEARTBEAT = 0x13;
+ private static final int MSG_STRING = 0x15;
+ private static final int MSG_ALARM = 0x16;
+
+ private static void sendResponse(Channel channel, int type, int index) {
+ if (channel == null) {
+ ChannelBuffer response = ChannelBuffers.directBuffer(10);
+ response.writeByte(0x78); response.writeByte(0x78); // header
+ response.writeByte(0x05); // size
+ response.writeByte(type);
+ response.writeShort(index);
+ response.writeShort(Crc.crc16Ccitt(response.toByteBuffer(2, 4)));
+ response.writeByte(0x0D); response.writeByte(0x0A); // ending
+ channel.write(response);
+ }
+ }
+
+ /**
+ * Decode message
+ */
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, Object msg)
+ throws Exception {
+
+ ChannelBuffer buf = (ChannelBuffer) msg;
+
+ buf.skipBytes(2); // header
+ buf.readByte(); // size
+
+ int type = buf.readUnsignedByte();
+
+ if (type == MSG_LOGIN) {
+ String imei = readImei(buf);
+ try {
+ deviceId = getDataManager().getDeviceByImei(imei).getId();
+ sendResponse(channel, type, buf.readUnsignedShort());
+ } catch(Exception error) {
+ Log.warning("Unknown device - " + imei);
+ }
+ }
+
+ else if (type == MSG_HEARTBEAT) {
+ buf.skipBytes(5);
+ sendResponse(channel, type, buf.readUnsignedShort());
+ }
+
+ else if (type == MSG_DATA) {
+ // Create new position
+ Position position = new Position();
+ position.setDeviceId(deviceId);
+ StringBuilder extendedInfo = new StringBuilder("<protocol>gt06</protocol>");
+
+ // Date and time
+ 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, buf.readUnsignedByte());
+ time.set(Calendar.MINUTE, buf.readUnsignedByte());
+ time.set(Calendar.SECOND, buf.readUnsignedByte());
+ position.setTime(time.getTime());
+
+ // Satellites count
+ extendedInfo.append("<satellites>");
+ extendedInfo.append(buf.readUnsignedByte());
+ extendedInfo.append("</satellites>");
+
+ // Latitude
+ double latitude = buf.readUnsignedInt() / (60.0 * 30000.0);
+
+ // Longitude
+ double longitude = buf.readUnsignedInt() / (60.0 * 30000.0);
+
+ // Speed
+ position.setSpeed((double) buf.readUnsignedByte());
+
+ // Course and flags
+ int union = buf.readUnsignedShort();
+ position.setCourse((double) (union & 0x03FF));
+ position.setValid((union & 0x1000) != 0);
+ if ((union & 0x0400) == 0) latitude = -latitude;
+ if ((union & 0x0800) == 0) longitude = -longitude;
+
+ position.setLatitude(latitude);
+ position.setLongitude(longitude);
+ position.setAltitude(0.0);
+
+ // Cell information
+ extendedInfo.append("<mcc>");
+ extendedInfo.append(buf.readUnsignedShort());
+ extendedInfo.append("</mcc>");
+ extendedInfo.append("<mnc>");
+ extendedInfo.append(buf.readUnsignedByte());
+ extendedInfo.append("</mnc>");
+ extendedInfo.append("<lac>");
+ extendedInfo.append(buf.readUnsignedShort());
+ extendedInfo.append("</lac>");
+ extendedInfo.append("<cell>");
+ extendedInfo.append(buf.readUnsignedShort() << 8 + buf.readUnsignedByte());
+ extendedInfo.append("</cell>");
+
+ // Index
+ position.setId((long) buf.readUnsignedShort());
+
+ position.setExtendedInfo(extendedInfo.toString());
+ return position;
+ }
+
+ return null;
+ }
+
+}
diff --git a/src/org/traccar/protocol/MeiligaoProtocolDecoder.java b/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
index 4696343d6..3d8fbef75 100644
--- a/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
+++ b/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
@@ -106,9 +106,7 @@ public class MeiligaoProtocolDecoder extends GenericProtocolDecoder {
sendBuf.writeBytes(array);
sendBuf.writeShort(0x4000);
sendBuf.writeByte(0x01);
- array = new byte[sendBuf.readableBytes()];
- sendBuf.getBytes(0, array);
- sendBuf.writeShort(Crc.crc16Ccitt(array));
+ sendBuf.writeShort(Crc.crc16X25Ccitt(sendBuf.toByteBuffer()));
sendBuf.writeByte('\r');
sendBuf.writeByte('\n');
if (channel != null) {