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/*
* Copyright 2016 - 2019 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.session.DeviceSession;
import org.traccar.NetworkMessage;
import org.traccar.Protocol;
import org.traccar.helper.Checksum;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.ObdDecoder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
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 L100ProtocolDecoder extends BaseProtocolDecoder {
public L100ProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("ATL")
.expression(",[^,]+,").optional()
.number("(d{15}),") // imei
.text("$GPRMC,")
.number("(dd)(dd)(dd)") // time (hhmmss.sss)
.number(".(ddd)").optional()
.expression(",([AV]),") // validity
.number("(d+)(dd.d+),") // latitude
.expression("([NS]),")
.number("(d+)(dd.d+),") // longitude
.expression("([EW]),")
.number("(d+.?d*)?,") // speed
.number("(d+.?d*)?,") // course
.number("(dd)(dd)(dd),") // date (ddmmyy)
.any()
.text("#")
.number("([01]+),") // io status
.number("(d+.?d*|N.C),") // adc
.expression("[^,]*,") // reserved
.expression("[^,]*,") // reserved
.number("(d+.?d*),") // odometer
.number("(d+.?d*),") // temperature
.number("(d+.?d*),") // battery
.number("(d+),") // rssi
.number("(d+),") // mcc
.number("(d+),") // mnc
.number("(x+),") // lac
.number("(x+)") // cid
.any()
.text("ATL")
.compile();
private static final Pattern PATTERN_OBD_LOCATION = new PatternBuilder()
.expression("[LH],") // archive
.text("ATL,")
.number("(d{15}),") // imei
.number("(d+),") // type
.number("(d+),") // index
.groupBegin()
.number("(dd)(dd)(dd),") // time (hhmmss)
.number("(dd)(dd)(dd),") // date (ddmmyy)
.expression("([AV]),") // validity
.number("(d+.d+);([NS]),") // latitude
.number("(d+.d+);([EW]),") // longitude
.number("(d+),") // speed
.number("(d+),") // course
.number("(d+.d+),") // odometer
.number("(d+.d+),") // battery
.number("(d+),") // rssi
.number("(d+),") // mcc
.number("(d+),") // mnc
.number("(d+),") // lac
.number("(x+),") // cid
.number("#(d)(d)(d)(d),") // status
.number("(d),") // overspeed
.text("ATL,")
.groupEnd("?")
.compile();
private static final Pattern PATTERN_OBD_DATA = new PatternBuilder()
.expression("[LH],") // archive
.text("ATLOBD,")
.number("(d{15}),") // imei
.number("d+,") // type
.number("d+,") // index
.number("(dd)(dd)(dd),") // time (hhmmss)
.number("(dd)(dd)(dd),") // date (ddmmyy)
.expression("[^,]+,") // obd protocol
.expression("(.+)") // data
.compile();
private static final Pattern PATTERN_NEW = new PatternBuilder()
.groupBegin()
.text("ATL,")
.expression("[LH],") // archive
.number("(d{15}),") // imei
.groupEnd("?")
.expression("([NPT]),") // alarm
.number("(dd)(dd)(dd),") // date (ddmmyy)
.number("(dd)(dd)(dd),") // time (hhmmss)
.expression("([AV]),") // validity
.number("(d+.d+),([NS]),") // latitude
.number("(d+.d+),([EW]),") // longitude
.number("(d+.?d*),") // speed
.expression("(?:GPS|GSM|INV),")
.number("(d+),") // battery
.number("(d+),") // mcc
.number("(d+),") // mnc
.number("(d+),") // lac
.number("(d+)") // cid
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
if (sentence.startsWith("L") || sentence.startsWith("H")) {
if (sentence.startsWith("ATLOBD", 2)) {
return decodeObdData(channel, remoteAddress, sentence);
} else {
return decodeObdLocation(channel, remoteAddress, sentence);
}
} else if (!sentence.contains("$GPRMC")) {
return decodeNew(channel, remoteAddress, sentence);
} else {
return decodeNormal(channel, remoteAddress, sentence);
}
}
private Object decodeNormal(Channel channel, SocketAddress remoteAddress, String sentence) {
Parser parser = new Parser(PATTERN, sentence);
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()
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt(), parser.nextInt(0));
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.setSpeed(parser.nextDouble(0));
position.setCourse(parser.nextDouble(0));
dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
position.set(Position.KEY_STATUS, parser.next());
position.set(Position.PREFIX_ADC + 1, parser.next());
position.set(Position.KEY_ODOMETER, parser.nextDouble());
position.set(Position.PREFIX_TEMP + 1, parser.nextDouble());
position.set(Position.KEY_BATTERY, parser.nextDouble());
int rssi = parser.nextInt();
if (rssi > 0) {
position.setNetwork(new Network(CellTower.from(
parser.nextInt(), parser.nextInt(), parser.nextHexInt(), parser.nextHexInt(), rssi)));
}
if (channel != null) {
channel.writeAndFlush(new NetworkMessage(String.valueOf((char) 0x01), remoteAddress));
}
return position;
}
private Object decodeObdLocation(Channel channel, SocketAddress remoteAddress, String sentence) {
Parser parser = new Parser(PATTERN_OBD_LOCATION, sentence);
if (!parser.matches()) {
return null;
}
String imei = parser.next();
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
if (deviceSession == null) {
return null;
}
int type = parser.nextInt();
int index = parser.nextInt();
if (type == 1) {
if (channel != null) {
String response = "@" + imei + ",00," + index + ",";
response += "*" + (char) Checksum.xor(response);
channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
}
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
position.setTime(parser.nextDateTime(Parser.DateTimeFormat.HMS_DMY));
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
position.setSpeed(parser.nextInt());
position.setCourse(parser.nextInt());
position.set(Position.KEY_ODOMETER, parser.nextDouble() * 1000);
position.set(Position.KEY_BATTERY, parser.nextDouble());
int rssi = parser.nextInt();
position.setNetwork(new Network(CellTower.from(
parser.nextInt(), parser.nextInt(), parser.nextInt(), parser.nextHexInt(), rssi)));
position.set(Position.KEY_IGNITION, parser.nextInt() == 1);
parser.next(); // reserved
switch (parser.nextInt()) {
case 0 -> position.set(Position.KEY_ALARM, Position.ALARM_BRAKING);
case 2 -> position.set(Position.KEY_ALARM, Position.ALARM_ACCELERATION);
case 1 -> position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
}
position.set(Position.KEY_CHARGE, parser.nextInt() == 1);
if (parser.nextInt() == 1) {
position.set(Position.KEY_ALARM, Position.ALARM_OVERSPEED);
}
return position;
}
private Object decodeObdData(Channel channel, SocketAddress remoteAddress, String sentence) {
Parser parser = new Parser(PATTERN_OBD_DATA, sentence);
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());
getLastLocation(position, parser.nextDateTime(Parser.DateTimeFormat.HMS_DMY));
for (String entry : parser.next().split(",")) {
String[] values = entry.split(":");
if (values.length == 2 && values[1].charAt(0) != 'X') {
position.add(ObdDecoder.decodeData(
Integer.parseInt(values[0].substring(2), 16), Integer.parseInt(values[1], 16), true));
}
}
return position;
}
private Object decodeNew(Channel channel, SocketAddress remoteAddress, String sentence) {
Parser parser = new Parser(PATTERN_NEW, sentence);
if (!parser.matches()) {
return null;
}
String imei = parser.next();
DeviceSession deviceSession;
if (imei != null) {
deviceSession = getDeviceSession(channel, remoteAddress, imei);
} else {
deviceSession = getDeviceSession(channel, remoteAddress);
}
if (deviceSession == null) {
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
switch (parser.next()) {
case "P" -> position.set(Position.KEY_ALARM, Position.ALARM_SOS);
case "T" -> position.set(Position.KEY_ALARM, Position.ALARM_TAMPERING);
}
position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
position.setSpeed(parser.nextDouble());
position.set(Position.KEY_BATTERY, parser.nextInt() * 0.001);
position.setNetwork(new Network(CellTower.from(
parser.nextInt(), parser.nextInt(), parser.nextInt(), parser.nextHexInt())));
return position;
}
}
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