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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.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.regex.Pattern;
public class AquilaProtocolDecoder extends BaseProtocolDecoder {
public AquilaProtocolDecoder(AquilaProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("$$")
.expression("[^,]*,") // client
.number("(d+),") // device serial number
.number("(d+),") // event
.number("(-?d+.d+),") // latitude
.number("(-?d+.d+),") // longitude
.number("(dd)(dd)(dd)") // date (yymmdd)
.number("(dd)(dd)(dd),") // time (hhmmss)
.expression("([AV]),") // validity
.number("(d+),") // gsm
.number("(d+),") // speed
.number("(d+),") // distance
.number("d+,") // driver code
.number("(d+),") // fuel
.number("([01]),") // io 1
.number("[01],") // case open switch
.number("[01],") // over speed start
.number("[01],") // over speed end
.number("(?:d+,){3}") // reserved
.number("([01]),") // power status
.number("([01]),") // io 2
.number("d+,") // reserved
.number("([01]),") // ignition
.number("[01],") // ignition off event
.number("(?:d+,){7}") // reserved
.number("[01],") // corner packet
.number("(?:d+,){8}") // reserved
.number("([01]),") // course bit 0
.number("([01]),") // course bit 1
.number("([01]),") // course bit 2
.number("([01]),") // course bit 3
.text("*")
.number("(xx)") // checksum
.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());
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession == null) {
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
position.set(Position.KEY_EVENT, parser.nextInt());
position.setLatitude(parser.nextDouble());
position.setLongitude(parser.nextDouble());
DateBuilder dateBuilder = new DateBuilder()
.setDate(parser.nextInt(), parser.nextInt(), parser.nextInt())
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
position.setValid(parser.next().equals("A"));
position.set(Position.KEY_GSM, parser.nextInt());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
position.set(Position.KEY_ODOMETER, parser.next());
position.set(Position.KEY_FUEL, parser.next());
position.set(Position.PREFIX_IO + 1, parser.next());
position.set(Position.KEY_CHARGE, parser.next());
position.set(Position.PREFIX_IO + 2, parser.next());
position.set(Position.KEY_IGNITION, parser.nextInt() == 1);
int course = (parser.nextInt() << 3) + (parser.nextInt() << 2) + (parser.nextInt() << 1) + parser.nextInt();
if (course > 0 && course <= 8) {
position.setCourse((course - 1) * 45);
}
return position;
}
}
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