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/*
* Copyright 2014 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 java.net.SocketAddress;
import java.util.Calendar;
import java.util.TimeZone;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.helper.*;
import org.traccar.model.Event;
import org.traccar.model.Position;
public class VisiontekProtocolDecoder extends BaseProtocolDecoder {
public VisiontekProtocolDecoder(VisiontekProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("$1,")
.expression("([^,]+),") // identifier
.number("(d+),").optional() // imei
.number("(dd),(dd),(dd),") // date
.number("(dd),(dd),(dd),") // time
.groupBegin()
.number("(dd)(dd).?(d+)([NS]),") // latitude
.number("(ddd)(dd).?(d+)([EW]),") // longitude
.or()
.number("(dd.d+)([NS]),") // latitude
.number("(ddd.d+)([EW]),") // longitude
.groupEnd()
.number("(d+.?d+),") // speed
.number("(d+),") // course
.groupBegin()
.groupBegin()
.number("(d+),") // altitude
.number("(d+),") // satellites
.groupEnd("?")
.number("(d+),") // odometer
.groupBegin()
.number("(d),") // ignition
.number("(d),") // input 1
.number("(d),") // input 2
.number("(d),") // immobilizer
.number("(d),") // external battery status
.number("(d+),") // gsm
.groupEnd("?")
.groupEnd("?")
.any()
.expression("([AV])") // validity
.number(",(d{10})").optional() // rfid
.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;
}
Position position = new Position();
position.setProtocol(getProtocolName());
String id = parser.next();
String imei = parser.next();
if (!identify(id, channel, null, false) && (imei == null || !identify(imei, channel))) {
return null;
}
position.setDeviceId(getDeviceId());
DateBuilder dateBuilder = new DateBuilder()
.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt())
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
if (parser.hasNext(8)) {
position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN_HEM));
position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN_HEM));
}
if (parser.hasNext(4)) {
position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
}
position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(
parser.next().replace(".", "")) / 10));
position.setCourse(parser.nextDouble());
position.setAltitude(parser.nextDouble());
position.set(Event.KEY_SATELLITES, parser.next());
position.set(Event.KEY_ODOMETER, parser.next());
position.set(Event.KEY_IGNITION, parser.next());
position.set(Event.PREFIX_IO + 1, parser.next());
position.set(Event.PREFIX_IO + 2, parser.next());
position.set("immobilizer", parser.next());
position.set(Event.KEY_POWER, parser.next());
position.set(Event.KEY_GSM, parser.next());
position.setValid(parser.next().equals("A"));
position.set(Event.KEY_RFID, parser.next());
return position;
}
}
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