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/*
* Copyright 2017 Anton Tananaev (anton@traccar.org)
*
* 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.DeviceSession;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.util.regex.Pattern;
public class TmgProtocolDecoder extends BaseProtocolDecoder {
public TmgProtocolDecoder(TmgProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("$")
.expression("...,") // type
.expression("[LH],") // history
.number("(d+),") // imei
.number("(dd)(dd)(dddd),") // date
.number("(dd)(dd)(dd),") // time
.number("(d),") // status
.number("(dd)(dd.d+),") // latitude
.expression("([NS]),")
.number("(ddd)(dd.d+),") // longitude
.expression("([EW]),")
.number("(d+.?d*),") // speed
.number("(d+.?d*),") // course
.number("(-?d+.?d*),") // altitude
.number("(d+.d+),") // hdop
.number("(d+),") // satellites
.number("(d+),") // visible satellites
.number("([^,]*),") // operator
.number("(d+),") // rssi
.number("x+,") // cid
.expression("([01]),") // ignition
.number("(d+.?d*),") // battery
.number("(d+.?d*),") // power
.expression("([01]+),") // input
.expression("([01]+),") // output
.expression("[01]+,") // temper status
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
Parser parser = new Parser(PATTERN, (String) msg);
if (!parser.matches()) {
return null;
}
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession == null) {
return null;
}
Position position = new Position();
position.setProtocol(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
DateBuilder dateBuilder = new DateBuilder()
.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt())
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
position.setValid(parser.nextInt() > 0);
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
position.setCourse(parser.nextDouble());
position.setAltitude(parser.nextDouble());
position.set(Position.KEY_HDOP, parser.nextDouble());
position.set(Position.KEY_SATELLITES, parser.nextInt());
position.set(Position.KEY_SATELLITES_VISIBLE, parser.nextInt());
position.set("operator", parser.next());
position.set(Position.KEY_RSSI, parser.nextInt());
position.set(Position.KEY_IGNITION, parser.nextInt() == 1);
position.set(Position.KEY_BATTERY, parser.nextDouble());
position.set(Position.KEY_POWER, parser.nextDouble());
position.set(Position.KEY_INPUT, parser.nextInt(2));
position.set(Position.KEY_OUTPUT, parser.nextInt(2));
return position;
}
}
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