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/*
* Copyright 2016 - 2018 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 io.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.Protocol;
import org.traccar.helper.BitUtil;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.util.regex.Pattern;
public class AutoGradeProtocolDecoder extends BaseProtocolDecoder {
public AutoGradeProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("(")
.number("d{12}") // index
.number("(d{15})") // imei
.number("(dd)(dd)(dd)") // date (ddmmyy)
.expression("([AV])") // validity
.number("(d+)(dd.d+)([NS])") // latitude
.number("(d+)(dd.d+)([EW])") // longitude
.number("([d.]{5})") // speed
.number("(dd)(dd)(dd)") // time (hhmmss)
.number("([d.]{6})") // course
.expression("(.)") // status
.number("A(xxxx)")
.number("B(xxxx)")
.number("C(xxxx)")
.number("D(xxxx)")
.number("E(xxxx)")
.number("K(xxxx)")
.number("L(xxxx)")
.number("M(xxxx)")
.number("N(xxxx)")
.number("O(xxxx)")
.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(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
DateBuilder dateBuilder = new DateBuilder()
.setDateReverse(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(parser.nextDouble(0));
dateBuilder.setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
position.setTime(dateBuilder.getDate());
position.setCourse(parser.nextDouble(0));
int status = parser.next().charAt(0);
position.set(Position.KEY_STATUS, status);
position.set(Position.KEY_IGNITION, BitUtil.check(status, 0));
for (int i = 1; i <= 5; i++) {
position.set(Position.PREFIX_ADC + i, parser.next());
}
for (int i = 1; i <= 5; i++) {
position.set("can" + i, parser.next());
}
return position;
}
}
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