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/*
* Copyright 2016 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.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.CellTower;
import org.traccar.model.Network;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.util.regex.Pattern;
public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
public FifotrackProtocolDecoder(FifotrackProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("$$")
.number("d+,") // length
.number("(d+),") // imei
.number("x+,") // index
.expression("[^,]+,") // type
.number("(d+)?,") // alarm
.number("(dd)(dd)(dd)") // date (yymmdd)
.number("(dd)(dd)(dd),") // time (hhmmss)
.number("([AV]),") // validity
.number("(-?d+.d+),") // latitude
.number("(-?d+.d+),") // longitude
.number("(d+),") // speed
.number("(d+),") // course
.number("(-?d+),") // altitude
.number("(d+),") // odometer
.number("d+,") // runtime
.number("(xxxx),") // status
.number("(x+)?,") // input
.number("(x+)?,") // output
.number("(d+)|") // mcc
.number("(d+)|") // mnc
.number("(x+)|") // lac
.number("(x+),") // cid
.number("([x|]+)") // adc
.expression(",([^,]+)") // rfid
.expression(",([^*]+)").optional(2) // sensors
.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_ALARM, parser.next());
position.setTime(parser.nextDateTime());
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextDouble(0));
position.setLongitude(parser.nextDouble(0));
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt(0)));
position.setCourse(parser.nextInt(0));
position.setAltitude(parser.nextInt(0));
position.set(Position.KEY_ODOMETER, parser.nextLong(0));
position.set(Position.KEY_STATUS, parser.nextHexInt(0));
if (parser.hasNext()) {
position.set(Position.KEY_INPUT, parser.nextHexInt(0));
}
if (parser.hasNext()) {
position.set(Position.KEY_OUTPUT, parser.nextHexInt(0));
}
position.setNetwork(new Network(CellTower.from(
parser.nextInt(0), parser.nextInt(0), parser.nextHexInt(0), parser.nextHexInt(0))));
String[] adc = parser.next().split("\\|");
for (int i = 0; i < adc.length; i++) {
position.set(Position.PREFIX_ADC + (i + 1), Integer.parseInt(adc[i], 16));
}
position.set(Position.KEY_RFID, parser.next());
if (parser.hasNext()) {
String[] sensors = parser.next().split("\\|");
for (int i = 0; i < sensors.length; i++) {
position.set(Position.PREFIX_IO + (i + 1), sensors[i]);
}
}
return position;
}
}
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