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/*
* Copyright 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.NetworkMessage;
import org.traccar.helper.BitUtil;
import org.traccar.helper.PatternBuilder;
import java.net.SocketAddress;
import java.util.regex.Pattern;
import org.traccar.DeviceSession;
import org.traccar.helper.Parser;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
public class SviasProtocolDecoder extends BaseProtocolDecoder {
public SviasProtocolDecoder(SviasProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("[") // delimiter
.number("d{4},") // hardware version
.number("d{4},") // software version
.number("d+,") // index
.number("(d+),") // imei
.number("d+,") // hour meter
.number("(d+)(dd)(dd),") // date (dmmyy)
.number("(d+)(dd)(dd),") // time (hmmss)
.number("(-?)(d+)(dd)(d{5}),") // latitude
.number("(-?)(d+)(dd)(d{5}),") // longitude
.number("(d+),") // speed
.number("(d+),") // course
.number("(d+),") // odometer
.number("(d+),") // input
.number("(d+),") // output / status
.number("(d),")
.number("(d),")
.number("(d+),") // power
.number("(d+),") // battery level
.number("(d+),") // rssi
.any()
.compile();
@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg)
throws Exception {
if (channel != null) {
channel.writeAndFlush(new NetworkMessage("@", remoteAddress));
}
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());
position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN_MIN));
position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN_MIN));
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble() * 0.01));
position.setCourse(parser.nextDouble() * 0.01);
position.set(Position.KEY_ODOMETER, parser.nextInt() * 100);
int input = parser.nextInt();
int output = parser.nextInt();
position.set(Position.KEY_ALARM, BitUtil.check(input, 0) ? Position.ALARM_SOS : null);
position.set(Position.KEY_IGNITION, BitUtil.check(input, 4));
position.setValid(BitUtil.check(output, 0));
position.set(Position.KEY_POWER, parser.nextInt() * 0.001);
position.set(Position.KEY_BATTERY_LEVEL, parser.nextInt());
position.set(Position.KEY_RSSI, parser.nextInt());
return position;
}
}
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