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authorAnton Tananaev <anton.tananaev@gmail.com>2012-04-26 19:34:10 +0000
committerAnton Tananaev <anton.tananaev@gmail.com>2012-04-26 19:34:10 +0000
commit02c1fb78a8b1681325ec01f49ae6ff6603825243 (patch)
treea851415301ec88a03d492594ba47577f02dc0edd /src/org/traccar/protocol/Avl08ProtocolDecoder.java
parentf0b1e58016632af5514d94b7439af77b9918b643 (diff)
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+/*
+ * 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.GregorianCalendar;
+import java.util.TimeZone;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.traccar.Position;
+import org.traccar.DataManager;
+import org.traccar.Device; // DELME
+import org.traccar.GenericProtocolDecoder;
+
+/**
+ * AVL-08 tracker protocol decoder
+ */
+public class Avl08ProtocolDecoder extends GenericProtocolDecoder {
+
+ /**
+ * Initialize
+ */
+ public Avl08ProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+ super(dataManager, resetDelay);
+ }
+
+ /**
+ * Regular expressions pattern
+ */
+ static private Pattern pattern = Pattern.compile(
+ "\\$\\$.{2}" + // Length
+ "(\\d{15})\\|" + // IMEI
+ "(.{2})" + // Alarm Type
+ "\\$GPRMC," +
+ "(\\d{2})(\\d{2})(\\d{2}).(\\d{3})," + // Time (HHMMSS.SSS)
+ "([AV])," + // Validity
+ "(\\d{2})(\\d{2}.\\d{4})," + // Latitude (DDMM.MMMM)
+ "([NS])," +
+ "(\\d{3})(\\d{2}.\\d{4})," + // Longitude (DDDMM.MMMM)
+ "([EW])," +
+ "(\\d+.\\d{2})?," + // Speed
+ "(\\d+.\\d{2})?," + // Course
+ "(\\d{2})(\\d{2})(\\d{2}),[^\\|]*\\|" + // Date (DDMMYY)
+ "(\\d+.\\d)\\|(\\d+.\\d)\\|(\\d+.\\d)\\|" + // Dilution of precision
+ "(\\d{12})\\|" + // Status
+ "(\\d{14})\\|" + // Clock
+ "(\\d{8})\\|" + // Voltage
+ "(\\d{8})\\|" + // ADC
+ "(.{8})\\|" + // Cell
+ "(.\\d{3})\\|" + // Temperature
+ "(\\d+.\\d{4})\\|" + // Mileage
+ "(\\d{4})\\|" + // Serial
+ "(.{10})?\\|?" + // RFID
+ ".+"); // TODO: Use non-capturing group
+
+ /**
+ * Decode message
+ */
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, Object msg)
+ throws Exception {
+
+ // Parse message
+ String sentence = (String) msg;
+ Matcher parser = pattern.matcher(sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ // Create new position
+ Position position = new Position();
+ String extendedInfo = "<protocol>avl08</protocol>";
+
+ Integer index = 1;
+
+ // Get device by IMEI
+ String imei = parser.group(index++);
+ position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
+
+ // Alarm type
+ extendedInfo += "<alarm>" + parser.group(index++) + "</alarm>";
+
+ // Time
+ Calendar time = new GregorianCalendar(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);
+
+ // Altitude
+ position.setAltitude(0.0);
+
+ // 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());
+
+ // Dilution of precision
+ extendedInfo += "<pdop>" + parser.group(index++).replaceFirst ("^0*(?![\\.$])", "") + "</pdop>";
+ extendedInfo += "<hdop>" + parser.group(index++).replaceFirst ("^0*(?![\\.$])", "") + "</hdop>";
+ extendedInfo += "<vdop>" + parser.group(index++).replaceFirst ("^0*(?![\\.$])", "") + "</vdop>";
+
+ // Status
+ extendedInfo += "<status>" + parser.group(index++) + "</status>";
+
+ // Real time clock
+ extendedInfo += "<clock>" + parser.group(index++) + "</clock>";
+
+ // Voltage
+ String voltage = parser.group(index++);
+ position.setPower(Double.valueOf(voltage.substring(1, 4)) / 100);
+ extendedInfo += "<voltage>" + voltage + "</voltage>";
+
+ // ADC
+ extendedInfo += "<adc>" + parser.group(index++) + "</adc>";
+
+ // Cell
+ extendedInfo += "<cell>" + parser.group(index++) + "</cell>";
+
+ // Temperature
+ extendedInfo += "<temperature>" + parser.group(index++) + "</temperature>";
+
+ // Mileage
+ extendedInfo += "<mileage>" + parser.group(index++) + "</mileage>";
+
+ // Serial
+ extendedInfo += "<serial>" + parser.group(index++).replaceFirst ("^0*", "") + "</serial>";
+
+ // RFID
+ String rfid = parser.group(index++);
+ if (rfid != null) {
+ extendedInfo += "<rfid>" + rfid + "</rfid>";
+ }
+
+ // Extended info
+ position.setExtendedInfo(extendedInfo);
+
+ return position;
+ }
+
+}