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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.DeviceSession;
import org.traccar.NetworkMessage;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.regex.Pattern;
public class Pt60ProtocolDecoder extends BaseProtocolDecoder {
public Pt60ProtocolDecoder(Pt60Protocol protocol) {
super(protocol);
}
public static final int MSG_TRACK = 6;
public static final int MSG_STEP_COUNT = 13;
public static final int MSG_HEART_RATE = 14;
private static final Pattern PATTERN = new PatternBuilder()
.text("@G#@,") // header
.number("Vdd,") // protocol version
.number("(d+),") // type
.number("(d+),") // imei
.number("(d+),") // imsi
.number("(dddd)(dd)(dd)") // date (yyyymmdd)
.number("(dd)(dd)(dd),") // time (hhmmss)
.expression("(.*)") // data
.compile();
private void sendResponse(Channel channel, SocketAddress remoteAddress) {
if (channel != null) {
DateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
channel.write(new NetworkMessage("@G#@,V01,38," + dateFormat.format(new Date()) + ",@R#@", remoteAddress));
}
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
sendResponse(channel, remoteAddress);
Parser parser = new Parser(PATTERN, (String) msg);
if (!parser.matches()) {
return null;
}
int type = parser.nextInt();
if (type != MSG_TRACK && type != MSG_STEP_COUNT && type != MSG_HEART_RATE) {
return null;
}
Position position = new Position(getProtocolName());
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next(), parser.next());
if (deviceSession == null) {
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
position.setDeviceTime(parser.nextDateTime());
String[] values = parser.next().split(",");
if (type == MSG_TRACK) {
position.setValid(true);
position.setFixTime(position.getDeviceTime());
String[] coordinates = values[0].split(";");
position.setLatitude(Double.parseDouble(coordinates[0]));
position.setLongitude(Double.parseDouble(coordinates[1]));
} else {
getLastLocation(position, position.getDeviceTime());
switch (type) {
case MSG_STEP_COUNT:
position.set(Position.KEY_STEPS, Integer.parseInt(values[0]));
break;
case MSG_HEART_RATE:
position.set(Position.KEY_HEART_RATE, Integer.parseInt(values[0]));
position.set(Position.KEY_BATTERY, Integer.parseInt(values[1]));
break;
default:
break;
}
}
return position;
}
}
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