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-rw-r--r--src/org/traccar/protocol/Mta6ProtocolDecoder.java248
-rwxr-xr-xtools/hex.sh2
2 files changed, 249 insertions, 1 deletions
diff --git a/src/org/traccar/protocol/Mta6ProtocolDecoder.java b/src/org/traccar/protocol/Mta6ProtocolDecoder.java
new file mode 100644
index 000000000..39d8f680b
--- /dev/null
+++ b/src/org/traccar/protocol/Mta6ProtocolDecoder.java
@@ -0,0 +1,248 @@
+/*
+ * 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 java.nio.ByteOrder;
+import java.nio.charset.Charset;
+import java.util.Calendar;
+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.buffer.ChannelBuffers;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.http.DefaultHttpResponse;
+import org.jboss.netty.handler.codec.http.HttpHeaders;
+import org.jboss.netty.handler.codec.http.HttpRequest;
+import org.jboss.netty.handler.codec.http.HttpResponse;
+import org.jboss.netty.handler.codec.http.HttpResponseStatus;
+import org.jboss.netty.handler.codec.http.HttpVersion;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.ServerManager;
+import org.traccar.helper.ChannelBufferTools;
+import org.traccar.helper.Log;
+import org.traccar.model.Position;
+
+public class Mta6ProtocolDecoder extends BaseProtocolDecoder {
+
+ public Mta6ProtocolDecoder(ServerManager serverManager) {
+ super(serverManager);
+ }
+
+ private void sendContinue(Channel channel) {
+ HttpResponse response = new DefaultHttpResponse(
+ HttpVersion.HTTP_1_1, HttpResponseStatus.CONTINUE);
+ channel.write(response);
+ }
+
+ private void sendResponse(Channel channel, short packetId, short packetCount) {
+ HttpResponse response = new DefaultHttpResponse(
+ HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
+
+ ChannelBuffer begin = ChannelBuffers.copiedBuffer("#ACK#", Charset.defaultCharset());
+ ChannelBuffer end = ChannelBuffers.directBuffer(3);
+ end.writeByte(packetId);
+ end.writeByte(packetCount);
+ end.writeByte(0);
+
+ response.setContent(ChannelBuffers.wrappedBuffer(begin, end));
+ channel.write(response);
+ }
+
+ private static boolean checkBit(long mask, int bit) {
+ long checkMask = 1 << bit;
+ return (mask & checkMask) == checkMask;
+ }
+
+ private List<Position> parseFormatA(ChannelBuffer buf, long deviceId) {
+ List<Position> positions = new LinkedList<Position>();
+
+ while (buf.readable()) {
+ Position position = new Position();
+ position.setDeviceId(deviceId);
+ StringBuilder extendedInfo = new StringBuilder("<protocol>mta6</protocol>");
+
+ short flags = buf.readUnsignedByte();
+
+ // Skip events
+ short event = buf.readUnsignedByte();
+ if (checkBit(event, 7)) {
+ if (checkBit(event, 6)) {
+ buf.skipBytes(8);
+ } else {
+ while (checkBit(event, 7)) {
+ event = buf.readUnsignedByte();
+ }
+ }
+ }
+
+ position.setLatitude((double) Float.intBitsToFloat(buf.readInt() << 2));
+ position.setLongitude((double) Float.intBitsToFloat(buf.readInt() << 2));
+
+ Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+ time.setTimeInMillis((buf.readUnsignedInt() << 2) * 1000);
+ position.setTime(time.getTime());
+
+ buf.readUnsignedShort(); // week
+
+
+ position.setExtendedInfo(extendedInfo.toString());
+ positions.add(position);
+ }
+
+ return positions;
+ }
+
+ private List<Position> parseFormatB(ChannelBuffer buf, long deviceId) {
+ return null;
+ }
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, Object msg)
+ throws Exception {
+
+ HttpRequest request = (HttpRequest) msg;
+
+ ChannelBuffer buf = request.getContent();
+ int length = buf.readableBytes();
+
+ // Read identifier
+ buf.skipBytes("id=".length());
+ int index = ChannelBufferTools.find(buf, buf.readerIndex(), length, "&");
+ String uniqueId = buf.toString(buf.readerIndex(), index - buf.readerIndex(), Charset.defaultCharset());
+ long deviceId = 0; // FIX FIX FIX
+ /*try {
+ deviceId = getDataManager().getDeviceByImei(uniqueId).getId();
+ } catch(Exception error) {
+ Log.warning("Unknown device - " + uniqueId);
+ return null;
+ }*/
+ buf.skipBytes(uniqueId.length());
+ buf.skipBytes("&bin=".length());
+
+ // Read header
+ short packetId = buf.readUnsignedByte();
+ buf.readUnsignedByte(); // dataOffset
+ short packetCount = buf.readUnsignedByte();
+ buf.readUnsignedByte(); // reserved
+ short parameters = buf.readUnsignedByte(); // TODO: handle timezone
+
+ // Send response
+ if (channel != null) {
+ sendContinue(channel);
+ sendResponse(channel, packetId, packetCount);
+ }
+
+ // Parse data
+ if (packetId == 0x31 || packetId == 0x32 || packetId == 0x36) {
+ return parseFormatA(buf, deviceId);
+ } else if (packetId == 0x34) {
+ return parseFormatB(buf, deviceId);
+ } //else if (0x38 0x4F 0x59)
+
+
+
+ /*String sentence = (String) msg;
+
+ // Detect device ID
+ if (sentence.contains("$PGID")) {
+ String imei = sentence.substring(6, sentence.length() - 3);
+ try {
+ deviceId = getDataManager().getDeviceByImei(imei).getId();
+ } catch(Exception error) {
+ Log.warning("Unknown device - " + imei);
+ }
+ }
+
+ // Parse message
+ else if (sentence.contains("$GPRMC") && deviceId != null) {
+
+ // Send response
+ if (channel != null) {
+ channel.write("OK1\r\n");
+ }
+
+ // Parse message
+ Matcher parser = pattern.matcher(sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ // Create new position
+ Position position = new Position();
+ position.setDeviceId(deviceId);
+
+ Integer index = 1;
+
+ // Time
+ Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+ time.clear();
+ 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++)));
+ index += 1; // Skip milliseconds
+
+ // Validity
+ position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false);
+
+ // 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);
+
+ // 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);
+
+ // Speed
+ String speed = parser.group(index++);
+ if (speed != null) {
+ position.setSpeed(Double.valueOf(speed));
+ } else {
+ position.setSpeed(0.0);
+ }
+
+ // Course
+ String course = parser.group(index++);
+ if (course != null) {
+ position.setCourse(Double.valueOf(course));
+ } else {
+ position.setCourse(0.0);
+ }
+
+ // Date
+ 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++)));
+ position.setTime(time.getTime());
+
+ // Altitude
+ position.setAltitude(0.0);
+
+ return position;
+ }*/
+
+ return null;
+ }
+
+}
diff --git a/tools/hex.sh b/tools/hex.sh
index fb0fa1a23..3727b7c3a 100755
--- a/tools/hex.sh
+++ b/tools/hex.sh
@@ -1 +1 @@
-echo 0a0038006cdc0000336bf6506b89aa27f4299f1a000000008c0a343a120f30303030010000000000000008000000302e70720200000004000973c80f00000000 | perl -ne 's/([0-9a-f]{2})/print chr hex $1/gie' | nc -v -w 10 localhost 5012
+echo 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 | perl -ne 's/([0-9a-f]{2})/print chr hex $1/gie' | nc -v -w 10 localhost 5026
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