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/*
* Copyright 2015 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.net.SocketAddress;
import java.util.Date;
import java.util.LinkedList;
import java.util.List;
import java.util.regex.Pattern;
import org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.helper.BitUtil;
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;
public class GoSafeProtocolDecoder extends BaseProtocolDecoder {
public GoSafeProtocolDecoder(GoSafeProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("*GS") // header
.number("d+,") // protocol version
.number("(d+),") // imei
.number("(dd)(dd)(dd)") // time
.number("(dd)(dd)(dd),") // date
.expression("(.*)#?") // data
.compile();
private static final Pattern PATTERN_ITEM = new PatternBuilder()
.number("(x+)?,") // event
.groupBegin()
.text("SYS:")
.expression("[^,]*,")
.groupEnd("?")
.groupBegin()
.text("GPS:")
.expression("([AV]);") // validity
.number("(d+);") // satellites
.number("([NS])(d+.d+);") // latitude
.number("([EW])(d+.d+);") // longitude
.number("(d+)?;") // speed
.number("(d+);") // course
.number("(d+);") // altitude
.number("(d+.d+)") // hdop
.number("(?:;d+.d+)?") // vdop
.expression(",?")
.groupEnd()
.groupBegin()
.text("GSM:").expression("[^,]*,?")
.groupEnd("?")
.groupBegin()
.text("COT:")
.number("(d+)") // odometer
.number("(?:;d+:d+:d+)?") // engine hours
.expression(",?")
.groupEnd("?")
.groupBegin()
.text("ADC:")
.number("(d+.d+);") // power
.number("(d+.d+),?") // battery
.groupEnd("?")
.groupBegin()
.text("DTT:")
.number("(x+);") // status
.expression("[^;]*;")
.number("x+;") // geo-fence 0-119
.number("x+;") // geo-fence 120-155
.number("x+,?") // event status
.groupEnd("?")
.groupBegin()
.text("ETD:").expression("[^,]*,?")
.groupEnd("?")
.groupBegin()
.text("OBD:")
.number("(x+),?")
.groupEnd("?")
.groupBegin()
.text("FUL:").expression("[^,]*,?")
.groupEnd("?")
.groupBegin()
.text("TRU:").expression("[^,]*,?")
.groupEnd("?")
.compile();
private Position decodePosition(Parser parser, Date time) {
Position position = new Position();
position.setDeviceId(getDeviceId());
position.setTime(time);
position.set(Event.KEY_EVENT, parser.next());
position.setValid(parser.next().equals("A"));
position.set(Event.KEY_SATELLITES, parser.next());
position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
position.setSpeed(parser.nextDouble());
position.setCourse(parser.nextDouble());
position.setAltitude(parser.nextDouble());
position.set(Event.KEY_HDOP, parser.next());
position.set(Event.KEY_ODOMETER, parser.next());
position.set(Event.KEY_POWER, parser.next());
position.set(Event.KEY_BATTERY, parser.next());
String status = parser.next();
if (status != null) {
position.set(Event.KEY_IGNITION, BitUtil.check(Integer.parseInt(status, 16), 13));
position.set(Event.KEY_STATUS, status);
}
if (parser.hasNext()) {
position.set("obd", parser.next());
}
return position;
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
if (channel != null) {
channel.write("1234");
}
Parser parser = new Parser(PATTERN, (String) msg);
if (!parser.matches()) {
return null;
}
if (!identify(parser.next(), channel, remoteAddress)) {
return null;
}
DateBuilder dateBuilder = new DateBuilder()
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt())
.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
List<Position> positions = new LinkedList<>();
Parser itemParser = new Parser(PATTERN_ITEM, parser.next());
while (itemParser.find()) {
positions.add(decodePosition(itemParser, dateBuilder.getDate()));
}
return positions;
}
}
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