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/*
* Copyright 2012 - 2016 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 org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Event;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.util.regex.Pattern;
public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
public Gps103ProtocolDecoder(Gps103Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("imei:")
.number("(d+),") // imei
.expression("([^,]+),") // alarm
.number("(dd)/?(dd)/?(dd) ?") // local date
.number("(dd):?(dd)(?:dd)?,") // local time
.expression("([^,]+)?,") // rfid
.expression("[FL],") // full / low
.groupBegin()
.number("(dd)(dd)(dd).(d+)") // time utc (hhmmss.sss)
.or()
.number("(?:d{1,5}.d+)?")
.groupEnd()
.text(",")
.expression("([AV]),") // validity
.expression("([NS]),").optional()
.number("(d+)(dd.d+),") // latitude (ddmm.mmmm)
.expression("([NS]),").optional()
.expression("([EW]),").optional()
.number("(d+)(dd.d+),") // longitude (dddmm.mmmm)
.expression("([EW])?,").optional()
.number("(d+.?d*)?,?") // speed
.number("(d+.?d*)?,?") // course
.number("(d+.?d*)?,?") // altitude
.expression("([^,;]+)?,?")
.expression("([^,;]+)?,?")
.expression("([^,;]+)?,?")
.expression("([^,;]+)?,?")
.expression("([^,;]+)?,?")
.any()
.compile();
private static final Pattern PATTERN_NETWORK = new PatternBuilder()
.text("imei:")
.number("(d+),") // imei
.expression("[^,]+,") // alarm
.number("d*,,")
.text("L,,,")
.number("(x+),,") // lac
.number("(x+),,,") // cid
.any()
.compile();
private static final Pattern PATTERN_HANDSHAKE = new PatternBuilder()
.number("##,imei:(d+),A")
.compile();
private static final Pattern PATTERN_OBD = new PatternBuilder()
.text("imei:")
.number("(d+),") // imei
.expression("OBD,") // type
.number("(dd)(dd)(dd)") // date
.number("(dd)(dd)(dd),") // time
.number("(d+),") // odometer
.number("(d+.d+)?,") // fuel instant
.number("(?:d+.d+)?,") // fuel average
.number("(d+),") // hours
.number("(d+),") // speed
.number("d+.?d*%,") // power load
.number("(d+),") // temperature
.number("(d+.?d*%),") // throttle
.number("(d+),") // rpm
.number("(d+.d+),") // battery
.number("[^,]*,") // dtc 1
.number("[^,]*,") // dtc 2
.number("[^,]*,") // dtc 3
.number("[^,]*") // dtc 4
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
// Send response #1
if (sentence.contains("##")) {
if (channel != null) {
channel.write("LOAD", remoteAddress);
Parser handshakeParser = new Parser(PATTERN_HANDSHAKE, sentence);
if (handshakeParser.matches()) {
identify(handshakeParser.next(), channel, remoteAddress);
}
}
return null;
}
// Send response #2
if (Character.isDigit(sentence.charAt(0))) {
if (channel != null) {
channel.write("ON", remoteAddress);
}
int start = sentence.indexOf("imei:");
if (start >= 0) {
sentence = sentence.substring(start);
} else {
return null;
}
}
Position position = new Position();
position.setProtocol(getProtocolName());
Parser parser = new Parser(PATTERN_NETWORK, sentence);
if (parser.matches()) {
if (!identify(parser.next(), channel, remoteAddress)) {
return null;
}
position.setDeviceId(getDeviceId());
getLastLocation(position, null);
position.set(Event.KEY_LAC, parser.nextInt(16));
position.set(Event.KEY_CID, parser.nextInt(16));
return position;
}
parser = new Parser(PATTERN_OBD, sentence);
if (parser.matches()) {
if (!identify(parser.next(), channel, remoteAddress)) {
return null;
}
position.setDeviceId(getDeviceId());
DateBuilder dateBuilder = new DateBuilder()
.setDate(parser.nextInt(), parser.nextInt(), parser.nextInt())
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
getLastLocation(position, dateBuilder.getDate());
position.set(Event.KEY_ODOMETER, parser.nextInt());
position.set(Event.KEY_FUEL, parser.next());
position.set(Event.KEY_HOURS, parser.next());
position.set(Event.KEY_OBD_SPEED, parser.next());
position.set(Event.PREFIX_TEMP + 1, parser.next());
position.set(Event.KEY_THROTTLE, parser.next());
position.set(Event.KEY_RPM, parser.next());
position.set(Event.KEY_BATTERY, parser.next());
return position;
}
parser = new Parser(PATTERN, sentence);
if (!parser.matches()) {
return null;
}
String imei = parser.next();
if (!identify(imei, channel, remoteAddress)) {
return null;
}
position.setDeviceId(getDeviceId());
String alarm = parser.next();
position.set(Event.KEY_ALARM, alarm);
if (channel != null && alarm.equals("help me")) {
channel.write("**,imei:" + imei + ",E;", remoteAddress);
}
DateBuilder dateBuilder = new DateBuilder()
.setDate(parser.nextInt(), parser.nextInt(), parser.nextInt());
int localHours = parser.nextInt();
int localMinutes = parser.nextInt();
String rfid = parser.next();
if (alarm.equals("rfid")) {
position.set(Event.KEY_RFID, rfid);
}
String utcHours = parser.next();
String utcMinutes = parser.next();
dateBuilder.setTime(localHours, localMinutes, parser.nextInt(), parser.nextInt());
// Timezone calculation
if (utcHours != null && utcMinutes != null) {
int deltaMinutes = (localHours - Integer.parseInt(utcHours)) * 60;
deltaMinutes += localMinutes - Integer.parseInt(utcMinutes);
if (deltaMinutes <= -12 * 60) {
deltaMinutes += 24 * 60;
} else if (deltaMinutes > 12 * 60) {
deltaMinutes -= 24 * 60;
}
dateBuilder.addMinute(-deltaMinutes);
}
position.setTime(dateBuilder.getDate());
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN_HEM));
position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN_HEM));
position.setSpeed(parser.nextDouble());
position.setCourse(parser.nextDouble());
position.setAltitude(parser.nextDouble());
for (int i = 1; i <= 5; i++) {
position.set(Event.PREFIX_IO + i, parser.next());
}
return position;
}
}
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