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-rw-r--r--src/org/traccar/Server.java22
-rw-r--r--src/org/traccar/helper/ChannelBufferTools.java24
-rw-r--r--src/org/traccar/protocol/Jt600FrameDecoder.java57
-rw-r--r--src/org/traccar/protocol/Jt600ProtocolDecoder.java220
4 files changed, 323 insertions, 0 deletions
diff --git a/src/org/traccar/Server.java b/src/org/traccar/Server.java
index f09e15913..140862d8b 100644
--- a/src/org/traccar/Server.java
+++ b/src/org/traccar/Server.java
@@ -100,6 +100,7 @@ public class Server {
initST210Server(properties);
initProgressServer(properties);
initH02Server(properties);
+ initJt600Server(properties);
// Initialize web server
@@ -547,4 +548,25 @@ public class Server {
}
}
+ /**
+ * Init JT600 server
+ */
+ private void initJt600Server(Properties properties) throws SQLException {
+
+ String protocol = "jt600";
+ if (isProtocolEnabled(properties, protocol)) {
+
+ TrackerServer server = new TrackerServer(getProtocolPort(properties, protocol));
+ final Integer resetDelay = getProtocolResetDelay(properties, protocol);
+
+ server.setPipelineFactory(new GenericPipelineFactory(server, dataManager, isLoggerEnabled(), geocoder) {
+ protected void addSpecificHandlers(ChannelPipeline pipeline) {
+ pipeline.addLast("frameDecoder", new Jt600FrameDecoder());
+ pipeline.addLast("objectDecoder", new Jt600ProtocolDecoder(getDataManager(), resetDelay));
+ }
+ });
+
+ serverList.add(server);
+ }
+ }
}
diff --git a/src/org/traccar/helper/ChannelBufferTools.java b/src/org/traccar/helper/ChannelBufferTools.java
index 6df1f7ba2..9139ed7ae 100644
--- a/src/org/traccar/helper/ChannelBufferTools.java
+++ b/src/org/traccar/helper/ChannelBufferTools.java
@@ -52,5 +52,29 @@ public class ChannelBufferTools {
return null;
}
+
+ /**
+ * Convert hex to integer (length in hex digits)
+ */
+ public static int readHexInteger(ChannelBuffer buf, int length) {
+
+ int result = 0;
+
+ for (int i = 0; i < length / 2; i++) {
+ int b = buf.readUnsignedByte();
+ result *= 10;
+ result += b >>> 4;
+ result *= 10;
+ result += b & 0x0f;
+ }
+
+ if (length % 2 == 1) {
+ int b = buf.getUnsignedByte(buf.readerIndex());
+ result *= 10;
+ result += b >>> 4;
+ }
+
+ return result;
+ }
}
diff --git a/src/org/traccar/protocol/Jt600FrameDecoder.java b/src/org/traccar/protocol/Jt600FrameDecoder.java
new file mode 100644
index 000000000..2e2fd228b
--- /dev/null
+++ b/src/org/traccar/protocol/Jt600FrameDecoder.java
@@ -0,0 +1,57 @@
+/*
+ * 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.text.ParseException;
+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 Jt600FrameDecoder extends FrameDecoder {
+
+ private static int MESSAGE_LENGTH = 37;
+
+ protected Object decode(
+ ChannelHandlerContext ctx,
+ Channel channel,
+ ChannelBuffer buf) throws Exception {
+
+ // Message identifier
+ char first = (char) buf.getByte(0);
+ int length = buf.readableBytes();
+
+ if (first == '$') {
+ // Check length
+ if (length >= MESSAGE_LENGTH) {
+ return buf.readBytes(MESSAGE_LENGTH);
+ }
+ } else if (first == '(') {
+ // Find ending
+ Integer endIndex = ChannelBufferTools.find(buf, 0, length, ")");
+ if (endIndex != null) {
+ return buf.readBytes(endIndex + 1);
+ }
+ } else {
+ // Unknown message
+ throw new ParseException(null, 0);
+ }
+
+ return null;
+ }
+
+}
diff --git a/src/org/traccar/protocol/Jt600ProtocolDecoder.java b/src/org/traccar/protocol/Jt600ProtocolDecoder.java
new file mode 100644
index 000000000..8a2be63fb
--- /dev/null
+++ b/src/org/traccar/protocol/Jt600ProtocolDecoder.java
@@ -0,0 +1,220 @@
+/*
+ * 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.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.GenericProtocolDecoder;
+import org.traccar.helper.ChannelBufferTools;
+import org.traccar.model.DataManager;
+import org.traccar.model.Position;
+
+/**
+ * JT600 protocol decoder
+ */
+public class Jt600ProtocolDecoder extends GenericProtocolDecoder {
+
+ /**
+ * Initialize
+ */
+ public Jt600ProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+ super(dataManager, resetDelay);
+ }
+
+ /**
+ * Decode regular message
+ */
+ private Position decodeNormalMessage(ChannelBuffer buf) throws Exception {
+
+ Position position = new Position();
+
+ buf.readByte(); // header
+
+ // Get device by identifier
+ int id = ChannelBufferTools.readHexInteger(buf, 10);
+ position.setDeviceId(getDataManager().getDeviceByImei(String.valueOf(id)).getId());
+
+ buf.readByte(); // protocol version + data type
+
+ buf.readBytes(2); // length
+
+ // Time
+ Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+ time.clear();
+ 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));
+ time.set(Calendar.HOUR, ChannelBufferTools.readHexInteger(buf, 2));
+ time.set(Calendar.MINUTE, ChannelBufferTools.readHexInteger(buf, 2));
+ time.set(Calendar.SECOND, ChannelBufferTools.readHexInteger(buf, 2));
+ position.setTime(time.getTime());
+
+ // Coordinates
+ int temp = ChannelBufferTools.readHexInteger(buf, 8);
+ double latitude = temp % 1000000;
+ latitude /= 60 * 10000;
+ latitude += temp / 1000000;
+ temp = ChannelBufferTools.readHexInteger(buf, 9);
+ double longitude = temp % 1000000;
+ longitude /= 60 * 10000;
+ longitude += temp / 1000000;
+
+ // Flags
+ byte flags = buf.readByte();
+ position.setValid((flags & 0x1) == 0x1);
+ if ((flags & 0x2) == 0) latitude = -latitude;
+ position.setLatitude(latitude);
+ if ((flags & 0x4) == 0) longitude = -longitude;
+ position.setLongitude(longitude);
+
+ // Speed
+ double speed = ChannelBufferTools.readHexInteger(buf, 2);
+ position.setSpeed(speed);
+
+ // Course
+ double course = buf.readUnsignedByte() * 2;
+ position.setCourse(course);
+
+ buf.readByte(); // number of satellites
+
+ // Course
+ double power = buf.readUnsignedByte();
+ position.setPower(power);
+
+ buf.readByte(); // other flags and sensors
+
+ // Altitude
+ double altitude = buf.readUnsignedShort();
+ position.setAltitude(altitude);
+
+ buf.readUnsignedShort(); // cell id
+ buf.readUnsignedShort(); // lac
+
+ buf.readUnsignedByte(); // gsm signal
+
+ buf.readUnsignedByte(); // message number
+
+ return position;
+ }
+
+ /**
+ * Alert message pattern
+ */
+ static private Pattern pattern = Pattern.compile(
+ "\\(" +
+ "([\\d]+)," + // Id
+ "W01," + // Type
+ "(\\d{3})(\\d{2}.\\d{4})," + // Longitude (DDDMM.MMMM)
+ "([EW])," +
+ "(\\d{2})(\\d{2}.\\d{4})," + // Latitude (DDMM.MMMM)
+ "([NS])," +
+ "([AV])," + // Validity
+ "(\\d{2})(\\d{2})(\\d{2})," + // Date (DDMMYY)
+ "(\\d{2})(\\d{2})(\\d{2})," + // Time (HHMMSS)
+ "(\\d+)," + // Speed (km/h)
+ "(\\d+)," + // Course
+ "(\\d+)," + // Power
+ "(\\d+)," + // GPS signal
+ "(\\d+)," + // GSM signal
+ "(\\d+)," + // Alert Type
+ ".*\\)");
+
+ /**
+ * Decode alert message
+ */
+ private Position decodeAlertMessage(ChannelBuffer buf) throws Exception {
+
+ String message = buf.toString(Charset.defaultCharset());
+
+ // Parse message
+ Matcher parser = pattern.matcher(message);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ // Create new position
+ Position position = new Position();
+ Integer index = 1;
+
+ // Get device by identifier
+ String id = parser.group(index++);
+ position.setDeviceId(getDataManager().getDeviceByImei(id).getId());
+
+ // Longitude
+ Double lonlitude = Double.valueOf(parser.group(index++));
+ lonlitude += Double.valueOf(parser.group(index++)) / 60;
+ if (parser.group(index++).compareTo("W") == 0) lonlitude = -lonlitude;
+ position.setLongitude(lonlitude);
+
+ // Latitude
+ Double latitude = Double.valueOf(parser.group(index++));
+ latitude += Double.valueOf(parser.group(index++)) / 60;
+ if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
+ position.setLatitude(latitude);
+
+ // Validity
+ position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false);
+
+ // Time
+ Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+ time.clear();
+ time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
+ time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
+ time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
+ time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
+ time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
+ time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
+ position.setTime(time.getTime());
+
+ // Speed
+ position.setSpeed(Double.valueOf(parser.group(index++)));
+
+ // Course
+ position.setCourse(Double.valueOf(parser.group(index++)));
+
+ // Power
+ position.setPower(Double.valueOf(parser.group(index++)));
+
+ return position;
+ }
+
+ /**
+ * Decode message
+ */
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, Object msg)
+ throws Exception {
+
+ ChannelBuffer buf = (ChannelBuffer) msg;
+ char first = (char) buf.getByte(0);
+
+ // Check message type
+ if (first == '$') {
+ return decodeNormalMessage(buf);
+ } else if (first == '(') {
+ return decodeAlertMessage(buf);
+ }
+
+ return null;
+ }
+
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 10:58:57 +0000