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/*
* Copyright 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.NetworkMessage;
import org.traccar.helper.BitUtil;
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 MilesmateProtocolDecoder extends BaseProtocolDecoder {
public MilesmateProtocolDecoder(MilesmateProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("ApiString={")
.number("A:(d+),") // imei
.number("B:(d+.d+),") // battery
.number("C:(d+.d+),") // adc
.number("D:(dd)(dd)(dd),") // time (hhmmss)
.number("E:(dd)(dd.d+)([NS]),") // latitude
.number("F:(ddd)(dd.d+)([EW]),") // longitude
.number("G:(d+.d+),") // speed
.number("H:(dd)(dd)(dd),") // date (ddmmyy)
.expression("I:[GL],") // location source
.number("J:([01]{8}),") // flags
.number("K:([01]{7})") // flags
.expression("([AV]),") // validity
.number("L:d{4},") // pin
.number("M:(d+.d+)") // course
.text("}")
.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;
}
if (channel != null) {
channel.writeAndFlush(new NetworkMessage("+##Received OK\n", remoteAddress));
}
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession == null) {
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
position.set(Position.KEY_BATTERY, parser.nextDouble());
position.set(Position.PREFIX_ADC + 1, parser.nextDouble());
DateBuilder dateBuilder = new DateBuilder()
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
int flags = parser.nextBinInt();
position.set(Position.KEY_IGNITION, BitUtil.check(flags, 8 - 1));
position.set(Position.KEY_ALARM, BitUtil.check(flags, 8 - 2) ? Position.ALARM_SOS : null);
position.set(Position.KEY_CHARGE, BitUtil.check(flags, 8 - 6));
position.set(Position.KEY_ALARM, BitUtil.check(flags, 8 - 8) ? Position.ALARM_OVERSPEED : null);
flags = parser.nextBinInt() << 1;
position.set(Position.KEY_BLOCKED, BitUtil.check(flags, 8 - 1));
position.set(Position.KEY_ALARM, BitUtil.check(flags, 8 - 2) ? Position.ALARM_TOW : null);
position.setValid(parser.next().equals("A"));
position.setCourse(parser.nextDouble());
return position;
}
}
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