/*
* Copyright 2015 - 2017 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 org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.CellTower;
import org.traccar.model.Network;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.regex.Pattern;
public class TrvProtocolDecoder extends BaseProtocolDecoder {
public TrvProtocolDecoder(TrvProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.expression("[A-Z]{2,3}")
.number("APdd")
.number("(dd)(dd)(dd)") // date (yymmdd)
.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 (hhmmss)
.number("([d.]{6})") // 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();
private static final Pattern PATTERN_HEATRBEAT = new PatternBuilder()
.expression("[A-Z]{2,3}")
.text("CP01,")
.number("(ddd)") // gsm
.number("(ddd)") // gps
.number("(ddd)") // battery
.number("(d)") // acc
.number("(dd)") // arm status
.number("(dd)") // working mode
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
String id = sentence.startsWith("TRV") ? sentence.substring(0, 3) : sentence.substring(0, 2);
String type = sentence.substring(id.length(), id.length() + 4);
if (channel != null) {
if (type.equals("AP00") && id.equals("IW")) {
String time = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());
channel.write(id + (char) (type.charAt(0) + 1) + type.substring(1) + "," + time + ",0#");
} else {
channel.write(id + (char) (type.charAt(0) + 1) + type.substring(1) + "#");
}
}
if (type.equals("AP00")) {
getDeviceSession(channel, remoteAddress, sentence.substring(id.length() + type.length()));
return null;
}
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
if (deviceSession == null) {
return null;
}
if (type.equals("CP01")) {
Parser parser = new Parser(PATTERN_HEATRBEAT, sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position();
position.setProtocol(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
getLastLocation(position, null);
position.set(Position.KEY_RSSI, parser.nextInt(0));
position.set(Position.KEY_SATELLITES, parser.nextInt(0));
position.set(Position.KEY_BATTERY, parser.nextInt(0));
position.set(Position.KEY_IGNITION, parser.nextInt(0) != 0);
position.set("arm", parser.nextInt(0));
position.set("mode", parser.nextInt(0));
return position;
} else 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(deviceSession.getDeviceId());
DateBuilder dateBuilder = new DateBuilder()
.setDate(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble(0)));
dateBuilder.setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
position.setTime(dateBuilder.getDate());
position.setCourse(parser.nextDouble(0));
int rssi = parser.nextInt(0);
position.set(Position.KEY_SATELLITES, parser.nextInt(0));
position.set(Position.KEY_BATTERY, parser.nextInt(0));
int acc = parser.nextInt(0);
if (acc != 0) {
position.set(Position.KEY_IGNITION, acc == 1);
}
position.setNetwork(new Network(CellTower.from(
parser.nextInt(0), parser.nextInt(0), parser.nextInt(0), parser.nextInt(0), rssi)));
return position;
}
return null;
}
}