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-rw-r--r--src/org/traccar/protocol/Xt7ProtocolDecoder.java176
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diff --git a/src/org/traccar/protocol/Xt7ProtocolDecoder.java b/src/org/traccar/protocol/Xt7ProtocolDecoder.java
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+/*
+ * 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.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.BaseProtocolDecoder;
+import org.traccar.ServerManager;
+import org.traccar.helper.Log;
+import org.traccar.model.Position;
+
+public class Xt7ProtocolDecoder extends BaseProtocolDecoder {
+
+ public Xt7ProtocolDecoder(ServerManager serverManager) {
+ super(serverManager);
+ }
+
+ static private Pattern pattern = Pattern.compile(
+ "\\$GPRMC," +
+ "(\\d{2})(\\d{2})(\\d{2})\\.(\\d+)," + // Time (HHMMSS.SSS)
+ "([AV])," + // Validity
+ "(\\d{2})(\\d{2}\\.\\d+)," + // Latitude (DDMM.MMMM)
+ "([NS])," +
+ "(\\d{3})(\\d{2}\\.\\d+)," + // Longitude (DDDMM.MMMM)
+ "([EW])," +
+ "(\\d+.\\d+)," + // Speed
+ "(\\d+\\.?\\d*)?," + // Course
+ "(\\d{2})(\\d{2})(\\d{2})" + // Date (DDMMYY)
+ "[^\\*]+\\*[0-9a-fA-F]{2}," +
+ "(\\d+,\\d+)," + // IMSI
+ "([0-9a-fA-F]+,[0-9a-fA-F]+)," + // Cell
+ "(\\d+)," + // Signal quality
+ "(\\d+)," + // Battery
+ "([01]{4})," + // Flags
+ "([01]{4})," + // Sensors
+ "(\\d+)," + // Fuel
+ "(.+)?"); // Alarm
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, Object msg)
+ throws Exception {
+
+ ChannelBuffer buf = (ChannelBuffer) msg;
+
+ buf.skipBytes(3); // STX
+
+ // Create new position
+ Position position = new Position();
+ StringBuilder extendedInfo = new StringBuilder("<protocol>xt7</protocol>");
+
+ // Get device by id
+ String id = buf.readBytes(16).toString(Charset.defaultCharset()).trim();
+ try {
+ position.setDeviceId(getDataManager().getDeviceByImei(id).getId());
+ } catch(Exception error) {
+ Log.warning("Unknown device - " + id);
+ return null;
+ }
+
+ buf.readUnsignedByte(); // command
+ int length = buf.readUnsignedByte();
+
+ // Parse message
+ String sentence = buf.readBytes(length).toString(Charset.defaultCharset());
+ Matcher parser = pattern.matcher(sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ 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++)));
+ time.set(Calendar.MILLISECOND, Integer.valueOf(parser.group(index++)));
+
+ // 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
+ position.setSpeed(Double.valueOf(parser.group(index++)));
+
+ // 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());
+
+ // IMSI
+ extendedInfo.append("<imsi>");
+ extendedInfo.append(parser.group(index++));
+ extendedInfo.append("</imsi>");
+
+ // Cell
+ extendedInfo.append("<cell>");
+ extendedInfo.append(parser.group(index++));
+ extendedInfo.append("</cell>");
+
+ // GSM signal quality
+ extendedInfo.append("<gsm>");
+ extendedInfo.append(parser.group(index++));
+ extendedInfo.append("</gsm>");
+
+ // Battery
+ position.setPower(Double.valueOf(parser.group(index++)));
+
+ // Flags
+ extendedInfo.append("<flags>");
+ extendedInfo.append(parser.group(index++));
+ extendedInfo.append("</flags>");
+
+ // Sensors
+ extendedInfo.append("<sensors>");
+ extendedInfo.append(parser.group(index++));
+ extendedInfo.append("</sensors>");
+
+ // Fuel
+ extendedInfo.append("<fuel>");
+ extendedInfo.append(parser.group(index++));
+ extendedInfo.append("</fuel>");
+
+ // Alarm
+ extendedInfo.append("<alarm>");
+ extendedInfo.append(parser.group(index++));
+ extendedInfo.append("</alarm>");
+
+ // Extended info
+ position.setExtendedInfo(extendedInfo.toString());
+
+ return position;
+ }
+
+}