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/*
* Copyright 2016 - 2018 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.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 MaestroProtocolDecoder extends BaseProtocolDecoder {
public MaestroProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("@")
.number("(d+),") // imei
.number("d+,") // index
.expression("[^,]+,") // profile
.expression("([01]),") // validity
.number("(d+.d+),") // battery
.number("(d+),") // gsm
.expression("([01]),") // starter
.expression("([01]),") // ignition
.number("(dd)/(dd)/(dd),") // date (yy/mm/dd)
.number("(dd):(dd):(dd),") // time (hh:mm:ss)
.number("(-?d+.d+),") // longitude
.number("(-?d+.d+),") // latitude
.number("(d+.?d*),") // altitude
.number("(d+.?d*),") // speed
.number("(d+.?d*),") // course
.number("(d+),") // satellites
.number("(d+.?d*),") // hdop
.number("(d+.?d*)") // odometer
.number(",(d+)").optional() // adc
.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(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
position.setValid(parser.nextInt(0) == 1);
position.set(Position.KEY_BATTERY, parser.nextDouble(0));
position.set(Position.KEY_RSSI, parser.nextInt(0));
position.set(Position.KEY_CHARGE, parser.nextInt(0) == 1);
position.set(Position.KEY_IGNITION, parser.nextInt(0) == 1);
position.setTime(parser.nextDateTime());
position.setLatitude(parser.nextDouble(0));
position.setLongitude(parser.nextDouble(0));
position.setAltitude(parser.nextDouble(0));
position.setSpeed(UnitsConverter.knotsFromMph(parser.nextDouble(0)));
position.setCourse(parser.nextDouble(0));
position.set(Position.KEY_SATELLITES, parser.nextInt(0));
position.set(Position.KEY_HDOP, parser.nextDouble(0));
position.set(Position.KEY_ODOMETER, parser.nextDouble(0) * 1609.34);
if (parser.hasNext()) {
position.set(Position.PREFIX_ADC + 1, parser.nextInt(0));
}
return position;
}
}
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