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/*
* Copyright 2020 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 io.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.NetworkMessage;
import org.traccar.Protocol;
import org.traccar.helper.BitUtil;
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 MobilogixProtocolDecoder extends BaseProtocolDecoder {
public MobilogixProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("[")
.number("(dddd)-(dd)-(dd) ") // date (yyyymmdd)
.number("(dd):(dd):(dd),") // time (hhmmss)
.number("Td,") // type
.number("d+,") // device type
.expression("[^,]+,") // protocol version
.expression("([^,]+),") // serial number
.number("(xx),") // status
.number("(d+.d+),") // battery
.number("(d)") // valid
.number("(d)") // rssi
.number("(d),") // satellites
.number("(-?d+.d+),") // latitude
.number("(-?d+.d+),") // longitude
.number("(d+.?d*),") // speed
.number("(d+.?d*)") // course
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
String type = sentence.substring(21, 21 + 2);
if (channel != null) {
String time = sentence.substring(1, 20);
String response;
if (type.equals("T1")) {
response = String.format("[%s,S1,1]", time);
} else {
response = String.format("[%s,S%c]", time, type.charAt(1));
}
channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
}
Parser parser = new Parser(PATTERN, (String) msg);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
position.setTime(parser.nextDateTime());
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession == null) {
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
int status = parser.nextHexInt();
position.set(Position.KEY_IGNITION, BitUtil.check(status, 2));
position.set(Position.KEY_MOTION, BitUtil.check(status, 3));
position.set(Position.KEY_STATUS, status);
position.set(Position.KEY_BATTERY, parser.nextDouble());
position.setValid(parser.nextInt() > 0);
position.set(Position.KEY_RSSI, parser.nextInt());
position.set(Position.KEY_SATELLITES, parser.nextInt());
position.setLatitude(parser.nextDouble());
position.setLongitude(parser.nextDouble());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
position.setCourse(parser.nextDouble());
return position;
}
}
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