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/*
* Copyright 2019 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.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.util.LinkedList;
import java.util.List;
import java.util.regex.Pattern;
public class RaceDynamicsProtocolDecoder extends BaseProtocolDecoder {
public RaceDynamicsProtocolDecoder(Protocol protocol) {
super(protocol);
}
public static final int MSG_LOGIN = 12;
public static final int MSG_LOCATION = 15;
private static final Pattern PATTERN_LOGIN = new PatternBuilder()
.text("$GPRMC,")
.number("d+,") // type
.number("d{6},") // date
.number("d{6},") // time
.number("(d{15}),")
.compile();
private static final Pattern PATTERN_LOCATION = new PatternBuilder()
.number("(dd)(dd)(dd),") // time (hhmmss)
.expression("([AV]),") // validity
.number("(dd)(dd.d+),") // latitude
.expression("([NS]),")
.number("(ddd)(dd.d+),") // longitude
.expression("([EW]),")
.number("(d+),") // speed
.number("(dd)(dd)(dd),") // date (ddmmyy)
.number("(-?d+),") // altitude
.number("(d+),") // satellites
.number("([01]),") // ignition
.number("(d+),") // index
.text("%,")
.number("([^,]+),") // ibutton
.number("d+,") // acceleration
.number("d+,") // deceleration
.number("[01],") // cruise control
.number("[01],") // seat belt
.number("[01],") // wrong ibutton
.number("(d+),") // power
.number("[01],") // power status
.number("(d+),") // battery
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
int type = Integer.parseInt(sentence.substring(7, 9));
if (type == MSG_LOGIN) {
Parser parser = new Parser(PATTERN_LOGIN, sentence);
if (parser.matches()) {
getDeviceSession(channel, remoteAddress, parser.next());
if (channel != null) {
channel.writeAndFlush(new NetworkMessage(sentence + "\r\n", remoteAddress));
}
}
} else if (type == MSG_LOCATION) {
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
if (deviceSession == null) {
return null;
}
List<Position> positions = new LinkedList<>();
for (String data : sentence.substring(17, sentence.length() - 3).split(",#,#,")) {
Parser parser = new Parser(PATTERN_LOCATION, data);
if (parser.matches()) {
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
DateBuilder dateBuilder = new DateBuilder()
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.setSpeed(parser.nextDouble());
dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
position.setAltitude(parser.nextInt());
position.set(Position.KEY_SATELLITES, parser.nextInt());
position.set(Position.KEY_IGNITION, parser.nextInt() == 1);
position.set(Position.KEY_INDEX, parser.nextInt());
position.set(Position.KEY_DRIVER_UNIQUE_ID, parser.next());
position.set(Position.KEY_POWER, parser.nextInt() * 0.01);
position.set(Position.KEY_BATTERY, parser.nextInt() * 0.01);
positions.add(position);
}
}
return positions;
}
return null;
}
}
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