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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.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 RstProtocolDecoder extends BaseProtocolDecoder {
public RstProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("RST;")
.expression("([AL]);") // archive
.expression("([^,]+);") // model
.expression("(.{5});") // firmware
.number("(d{9});") // serial number
.number("(d+);") // index
.number("(d+);") // type
.number("(dd)-(dd)-(dddd) ") // event date
.number("(dd):(dd):(dd);") // event time
.number("(dd)-(dd)-(dddd) ") // fix date
.number("(dd):(dd):(dd);") // fix time
.number("(-?d+.d+);") // latitude
.number("(-?d+.d+);") // longitude
.number("(d+);") // speed
.number("(d+);") // course
.number("(-?d+);") // altitude
.number("([01]);") // valid
.number("(d+);") // satellites
.number("(d+);") // hdop
.number("(xx);") // inputs 1
.number("(xx);") // inputs 2
.number("(xx);") // inputs 3
.number("(xx);") // outputs 1
.number("(xx);") // outputs 2
.number("(d+.d+);") // power
.number("(d+.d+);") // battery
.number("(d+);") // odometer
.number("(d+);") // rssi
.number("(xx);") // temperature
.number("x{4};") // sensors
.number("(xx);") // status 1
.number("(xx);") // status 2
.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;
}
String archive = parser.next();
String model = parser.next();
String firmware = parser.next();
String serial = parser.next();
parser.nextInt(); // index
parser.nextInt(); // type
if (channel != null && archive.equals("A")) {
String response = "RST;A;" + model + ";" + firmware + ";" + serial + ";1;6;FIM;";
channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
}
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, serial);
if (deviceSession == null) {
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
position.setDeviceTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
position.setFixTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
position.setLatitude(parser.nextDouble());
position.setLongitude(parser.nextDouble());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
position.setCourse(parser.nextInt());
position.setAltitude(parser.nextInt());
position.setValid(parser.nextInt() > 0);
position.set(Position.KEY_SATELLITES, parser.nextInt());
position.set(Position.KEY_HDOP, parser.nextInt());
position.set(Position.PREFIX_IN + 1, parser.nextHexInt());
position.set(Position.PREFIX_IN + 2, parser.nextHexInt());
position.set(Position.PREFIX_IN + 3, parser.nextHexInt());
position.set(Position.PREFIX_OUT + 1, parser.nextHexInt());
position.set(Position.PREFIX_OUT + 2, parser.nextHexInt());
position.set(Position.KEY_POWER, parser.nextDouble());
position.set(Position.KEY_BATTERY, parser.nextDouble());
position.set(Position.KEY_ODOMETER, parser.nextInt());
position.set(Position.KEY_RSSI, parser.nextInt());
position.set(Position.PREFIX_TEMP + 1, (int) parser.nextHexInt().byteValue());
position.set(Position.KEY_STATUS, parser.nextHexInt() << 8 + parser.nextHexInt());
return position;
}
}
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