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/*
* Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
*
* 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 org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Event;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.util.regex.Pattern;
public class TrvProtocolDecoder extends BaseProtocolDecoder {
public TrvProtocolDecoder(TrvProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("TRV")
.number("APdd")
.number("(dd)(dd)(dd)") // date
.expression("([AV])") // validity
.number("(dd)(dd.d+)") // latitude
.expression("([NS])")
.number("(ddd)(dd.d+)") // longitude
.expression("([EW])")
.number("(ddd.d)") // speed
.number("(dd)(dd)(dd)") // time
.number("(ddd.dd)") // course
.number("(ddd)") // gsm
.number("(ddd)") // satellites
.number("(ddd)") // battery
.number("(d)") // acc
.number("dd") // arm status
.number("dd,") // working mode
.number("(d+),") // mcc
.number("(d+),") // mnc
.number("(d+),") // lac
.number("(d+)") // cell
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
String type = sentence.substring(3, 7);
if (channel != null) {
channel.write("B" + type.substring(1)); // response
}
if (type.equals("AP00")) {
identify(sentence.substring(7), channel, remoteAddress);
return null;
}
if (!hasDeviceId()) {
return null;
}
if (type.equals("AP01") || type.equals("AP10")) {
Parser parser = new Parser(PATTERN, sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position();
position.setProtocol(getProtocolName());
position.setDeviceId(getDeviceId());
DateBuilder dateBuilder = new DateBuilder()
.setDate(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
dateBuilder.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
position.setCourse(parser.nextDouble());
position.set(Event.KEY_GSM, parser.nextInt());
position.set(Event.KEY_SATELLITES, parser.nextInt());
position.set(Event.KEY_BATTERY, parser.nextInt());
int acc = parser.nextInt();
if (acc != 0) {
position.set(Event.KEY_IGNITION, acc == 1);
}
position.set(Event.KEY_MCC, parser.nextInt());
position.set(Event.KEY_MNC, parser.nextInt());
position.set(Event.KEY_LAC, parser.nextInt());
position.set(Event.KEY_CID, parser.nextInt());
return position;
}
return null;
}
}
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