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/*
* Copyright 2015 - 2020 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.buffer.ByteBuf;
import io.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.Protocol;
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.nio.charset.StandardCharsets;
import java.util.regex.Pattern;
public class ArnaviTextProtocolDecoder extends BaseProtocolDecoder {
public ArnaviTextProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("$AV,")
.number("Vd,") // type
.number("(d+),") // device id
.number("(d+),") // index
.number("(d+),") // power
.number("(d+),") // battery
.number("-?d+,")
.expression("[01],") // movement
.expression("([01]),") // ignition
.number("(d+),") // input
.number("d+,d+,") // input 1
.number("d+,d+,").optional() // input 2
.expression("[01],") // fix type
.number("(d+),") // satellites
.groupBegin()
.number("(d+.d+)?,") // altitude
.number("(?:d+.d+)?,") // geoid height
.groupEnd("?")
.number("(dd)(dd)(dd),") // time (hhmmss)
.number("(dd)(dd.d+)([NS]),") // latitude
.number("(ddd)(dd.d+)([EW]),") // longitude
.number("(d+.d+),") // speed
.number("(d+.d+),") // course
.number("(dd)(dd)(dd)") // date (ddmmyy)
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
ByteBuf buf = (ByteBuf) msg;
Parser parser = new Parser(PATTERN, buf.toString(StandardCharsets.US_ASCII));
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession == null) {
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
position.set(Position.KEY_INDEX, parser.nextInt());
position.set(Position.KEY_POWER, parser.nextInt() * 0.01);
position.set(Position.KEY_BATTERY, parser.nextInt() * 0.01);
position.set(Position.KEY_IGNITION, parser.nextInt() == 1);
position.set(Position.KEY_INPUT, parser.nextInt());
position.set(Position.KEY_SATELLITES, parser.nextInt());
position.setAltitude(parser.nextDouble(0));
DateBuilder dateBuilder = new DateBuilder()
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setValid(true);
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.setSpeed(parser.nextDouble());
position.setCourse(parser.nextDouble());
dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
return position;
}
}
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