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/*
* Copyright 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.Position;
import java.net.SocketAddress;
import java.util.TimeZone;
import java.util.regex.Pattern;
public class SiwiProtocolDecoder extends BaseProtocolDecoder {
public SiwiProtocolDecoder(SiwiProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("$").expression("[A-Z]+,") // header
.number("(d+),") // device id
.number("d+,") // unit no
.expression("([A-Z]),") // reason
.number("d+,") // command code
.number("[^,]*,") // command value
.expression("([01]),") // ignition
.expression("[01],") // power cut
.expression("[01],") // box open
.number("d+,") // message key
.number("(d+),") // odometer
.number("(d+),") // speed
.number("(d+),") // satellites
.expression("([AV]),") // valid
.number("(-?d+.d+),") // latitude
.number("(-?d+.d+),") // longitude
.number("(-?d+),") // altitude
.number("(d+),") // course
.number("(dd)(dd)(dd),") // time
.number("(dd)(dd)(dd),") // date
.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;
}
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession == null) {
return null;
}
Position position = new Position();
position.setProtocol(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
position.set(Position.KEY_EVENT, parser.next());
position.set(Position.KEY_IGNITION, parser.next().equals("1"));
position.set(Position.KEY_ODOMETER, parser.nextInt());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
position.set(Position.KEY_SATELLITES, parser.nextInt());
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextDouble());
position.setLongitude(parser.nextDouble());
position.setAltitude(parser.nextDouble());
position.setCourse(parser.nextInt());
DateBuilder dateBuilder = new DateBuilder(TimeZone.getTimeZone("IST"))
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt())
.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
return position;
}
}
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