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/*
* Copyright 2014 - 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.session.DeviceSession;
import org.traccar.Protocol;
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 TelicProtocolDecoder extends BaseProtocolDecoder {
public TelicProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.number("dddd")
.number("(d{6}|d{15})") // device id
.number("(d{1,2}),") // type
.number("d{12},") // event time
.number("d+,")
.number("(dd)(dd)(dd)") // date (ddmmyy)
.number("(dd)(dd)(dd),") // time (hhmmss)
.groupBegin()
.number("(-?d{8,}),") // longitude
.number("(-?d{7,}),") // latitude
.or()
.number("(-?d+),") // longitude
.number("(-?d+),") // latitude
.groupEnd()
.number("(d),") // validity
.number("(d+),") // speed
.number("(d+),") // course
.number("(d+)?,") // satellites
.expression("(?:[^,]*,){7}")
.number("(d+),") // battery
.any()
.compile();
private String decodeAlarm(int eventId) {
return switch (eventId) {
case 1 -> Position.ALARM_POWER_ON;
case 2 -> Position.ALARM_SOS;
case 5 -> Position.ALARM_POWER_OFF;
case 7 -> Position.ALARM_GEOFENCE_ENTER;
case 8 -> Position.ALARM_GEOFENCE_EXIT;
case 22 -> Position.ALARM_LOW_BATTERY;
case 25 -> Position.ALARM_MOVEMENT;
default -> null;
};
}
@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(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
int event = parser.nextInt();
position.set(Position.KEY_EVENT, event);
position.set(Position.KEY_ALARM, decodeAlarm(event));
if (event == 11) {
position.set(Position.KEY_IGNITION, true);
} else if (event == 12) {
position.set(Position.KEY_IGNITION, false);
}
position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
if (parser.hasNext(2)) {
position.setLongitude(parser.nextDouble() / 1000000);
position.setLatitude(parser.nextDouble() / 1000000);
}
if (parser.hasNext(2)) {
position.setLongitude(parser.nextDouble() / 10000);
position.setLatitude(parser.nextDouble() / 10000);
}
position.setValid(parser.nextInt() != 1);
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
position.setCourse(parser.nextDouble());
position.set(Position.KEY_SATELLITES, parser.nextInt());
position.set(Position.KEY_BATTERY, parser.nextInt());
return position;
}
}
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