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/*
* Copyright 2012 - 2022 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.config.Keys;
import org.traccar.helper.model.AttributeUtil;
import org.traccar.session.DeviceSession;
import org.traccar.NetworkMessage;
import org.traccar.Protocol;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.channels.DatagramChannel;
import java.util.Date;
import java.util.regex.Pattern;
public class T55ProtocolDecoder extends BaseProtocolDecoder {
public T55ProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN_GPRMC = new PatternBuilder()
.text("$GPRMC,")
.number("(dd)(dd)(dd).?d*,") // time (hhmmss)
.expression("([AV]),") // validity
.number("(dd)(dd.d+),") // latitude
.expression("([NS]),")
.number("(d{2,3})(dd.d+),") // longitude
.expression("([EW]),")
.number("(d+.?d*)?,") // speed
.number("(d+.?d*)?,") // course
.number("(dd)(dd)(dd),") // date (ddmmyy)
.expression("[^*]+")
.text("*")
.expression("[^,]+")
.number(",(d+)") // satellites
.number(",(d+)") // imei
.expression(",([01])") // ignition
.number(",(d+)") // fuel
.number(",(d+)").optional(7) // battery
.number("((?:,d+)+)?") // parameters
.any()
.compile();
private static final Pattern PATTERN_GPGGA = new PatternBuilder()
.text("$GPGGA,")
.number("(dd)(dd)(dd).?d*,") // time (hhmmss)
.number("(d+)(dd.d+),") // latitude
.expression("([NS]),")
.number("(d+)(dd.d+),") // longitude
.expression("([EW]),")
.any()
.compile();
private static final Pattern PATTERN_GPRMA = new PatternBuilder()
.text("$GPRMA,")
.expression("([AV]),") // validity
.number("(dd)(dd.d+),") // latitude
.expression("([NS]),")
.number("(ddd)(dd.d+),") // longitude
.expression("([EW]),,,")
.number("(d+.?d*)?,") // speed
.number("(d+.?d*)?,") // course
.any()
.compile();
private static final Pattern PATTERN_TRCCR = new PatternBuilder()
.text("$TRCCR,")
.number("(dddd)(dd)(dd)") // date (yyyymmdd)
.number("(dd)(dd)(dd).?d*,") // time (hhmmss)
.expression("([AV]),") // validity
.number("(-?d+.d+),") // latitude
.number("(-?d+.d+),") // longitude
.number("(d+.d+),") // speed
.number("(d+.d+),") // course
.number("(-?d+.d+),") // altitude
.number("(d+.?d*),") // battery
.any()
.compile();
private static final Pattern PATTERN_GPIOP = new PatternBuilder()
.text("$GPIOP,")
.number("[01]{8},") // inputs
.number("[01]{8},") // outputs
.number("d+.d+,") // adc 1
.number("d+.d+,") // adc 2
.number("d+.d+,") // adc 3
.number("d+.d+,") // adc 4
.number("(d+.d+),") // power
.number("(d+.d+)") // battery
.any()
.compile();
private static final Pattern PATTERN_QZE = new PatternBuilder()
.text("QZE,")
.number("(d{15}),") // imei
.number("(d+),") // event
.number("(dd)(dd)(dddd),") // date (mmddyyyy)
.number("(dd)(dd)(dd),") // time (hhmmss)
.number("(-?d+.d+),") // latitude
.number("(-?d+.d+),") // longitude
.number("(d+),") // speed
.number("(d+),") // course
.expression("([AV]),") // validity
.expression("([01])") // ignition
.compile();
private static final Pattern PATTERN_PUBX = new PatternBuilder()
.text("$PUBX,")
.number("(d+),") // index
.number("(dd)(dd)(dd).d+,") // time (hhmmss)
.number("(dd)(dd.d+),([NS]),") // latitude
.number("(ddd)(dd.d+),([EW]),") // longitude
.number("(-?d+.d+),") // altitude
.expression("(..),") // status
.number("(d+.d+),") // horizontal accuracy
.number("d+.d+,") // vertical accuracy
.number("(d+.d+),") // speed
.number("(d+.d+),") // course
.number("-?d+.d+,") // vertical velocity
.expression("[^,]*,") // corrections age
.number("(d+.d+),") // hdop
.number("(d+.d+),") // vdop
.number("d+.d+,") // tdop
.number("(d+),") // satellites
.number("(d+),") // device id
.number("d+")
.text("*")
.number("xx") // checksum
.compile();
private Position position = null;
private Position decodeGprmc(
DeviceSession deviceSession, String sentence, SocketAddress remoteAddress, Channel channel) {
if (deviceSession != null && channel != null && !(channel instanceof DatagramChannel)) {
boolean ack = AttributeUtil.lookup(
getCacheManager(), Keys.PROTOCOL_ACK.withPrefix(getProtocolName()), deviceSession.getDeviceId());
if (ack) {
channel.writeAndFlush(new NetworkMessage("OK1\r\n", remoteAddress));
}
}
Parser parser = new Parser(PATTERN_GPRMC, sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
if (deviceSession != null) {
position.setDeviceId(deviceSession.getDeviceId());
}
DateBuilder dateBuilder = new DateBuilder()
.setTime(parser.nextInt(0), parser.nextInt(0), 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(0), parser.nextInt(0), parser.nextInt(0));
position.setTime(dateBuilder.getDate());
if (parser.hasNext(5)) {
position.set(Position.KEY_SATELLITES, parser.nextInt());
deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession == null) {
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
position.set(Position.KEY_IGNITION, parser.hasNext() && parser.next().equals("1"));
position.set(Position.KEY_FUEL_LEVEL, parser.nextInt(0));
position.set(Position.KEY_BATTERY, parser.nextInt());
}
if (parser.hasNext()) {
String[] parameters = parser.next().split(",");
for (int i = 1; i < parameters.length; i++) {
position.set(Position.PREFIX_IO + i, parameters[i]);
}
}
if (deviceSession != null) {
return position;
} else {
this.position = position; // save position
return null;
}
}
private Position decodeGpgga(DeviceSession deviceSession, String sentence) {
Parser parser = new Parser(PATTERN_GPGGA, sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
DateBuilder dateBuilder = new DateBuilder()
.setCurrentDate()
.setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
position.setTime(dateBuilder.getDate());
position.setValid(true);
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
return position;
}
private Position decodeGprma(DeviceSession deviceSession, String sentence) {
Parser parser = new Parser(PATTERN_GPRMA, sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
position.setTime(new Date());
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.setSpeed(parser.nextDouble(0));
position.setCourse(parser.nextDouble(0));
return position;
}
private Position decodeTrccr(DeviceSession deviceSession, String sentence) {
Parser parser = new Parser(PATTERN_TRCCR, sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
position.setTime(parser.nextDateTime());
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextDouble(0));
position.setLongitude(parser.nextDouble(0));
position.setSpeed(parser.nextDouble(0));
position.setCourse(parser.nextDouble(0));
position.setAltitude(parser.nextDouble(0));
position.set(Position.KEY_BATTERY, parser.nextDouble(0));
return position;
}
private Position decodeGpiop(DeviceSession deviceSession, String sentence) {
Parser parser = new Parser(PATTERN_GPIOP, sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
getLastLocation(position, null);
position.set(Position.KEY_POWER, parser.nextDouble());
position.set(Position.KEY_BATTERY, parser.nextDouble());
return position;
}
private Position decodeQze(Channel channel, SocketAddress remoteAddress, String sentence) {
Parser parser = new Parser(PATTERN_QZE, 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());
position.set(Position.KEY_EVENT, parser.nextInt());
position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
position.setLatitude(parser.nextDouble());
position.setLongitude(parser.nextDouble());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
position.setCourse(parser.nextInt());
position.setValid(parser.next().equals("A"));
position.set(Position.KEY_IGNITION, parser.nextInt() > 0);
return position;
}
private Position decodePubx(Channel channel, SocketAddress remoteAddress, String sentence) {
Parser parser = new Parser(PATTERN_PUBX, sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
position.set(Position.KEY_INDEX, parser.nextInt());
position.setTime(parser.nextDateTime(Parser.DateTimeFormat.HMS));
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.setAltitude(parser.nextDouble());
position.setValid(!parser.next().equals("NF"));
position.setAccuracy(parser.nextDouble());
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
position.setCourse(parser.nextDouble());
position.set(Position.KEY_HDOP, parser.nextDouble());
position.set(Position.KEY_VDOP, parser.nextDouble());
position.set(Position.KEY_SATELLITES, parser.nextInt());
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession != null) {
position.setDeviceId(deviceSession.getDeviceId());
return position;
}
return null;
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
DeviceSession deviceSession;
if (!sentence.startsWith("$") && sentence.contains("$")) {
int index = sentence.indexOf("$");
String id = sentence.substring(0, index);
if (id.endsWith(",")) {
id = id.substring(0, id.length() - 1);
} else if (id.endsWith("/")) {
id = id.substring(id.indexOf('/') + 1, id.length() - 1);
}
deviceSession = getDeviceSession(channel, remoteAddress, id);
sentence = sentence.substring(index);
} else {
deviceSession = getDeviceSession(channel, remoteAddress);
if (deviceSession == null && remoteAddress instanceof InetSocketAddress) {
String host = ((InetSocketAddress) remoteAddress).getHostString();
deviceSession = getDeviceSession(channel, remoteAddress, host);
}
}
if (sentence.startsWith("$PGID")) {
getDeviceSession(channel, remoteAddress, sentence.substring(6, sentence.length() - 3));
} else if (sentence.startsWith("$DEVID")) {
getDeviceSession(channel, remoteAddress, sentence.substring(7, sentence.lastIndexOf('*')));
} else if (sentence.startsWith("$PCPTI")) {
getDeviceSession(channel, remoteAddress, sentence.substring(7, sentence.indexOf(",", 7)));
} else if (sentence.startsWith("IMEI")) {
getDeviceSession(channel, remoteAddress, sentence.substring(5));
} else if (sentence.startsWith("$IMEI")) {
getDeviceSession(channel, remoteAddress, sentence.substring(6));
} else if (sentence.startsWith("$GPFID")) {
deviceSession = getDeviceSession(channel, remoteAddress, sentence.substring(7));
if (deviceSession != null && position != null) {
Position position = this.position;
position.setDeviceId(deviceSession.getDeviceId());
this.position = null;
return position;
}
} else if (sentence.matches("^[0-9A-F]+$")) {
getDeviceSession(channel, remoteAddress, sentence);
} else if (sentence.startsWith("$GPRMC")) {
return decodeGprmc(deviceSession, sentence, remoteAddress, channel);
} else if (sentence.startsWith("$GPGGA") && deviceSession != null) {
return decodeGpgga(deviceSession, sentence);
} else if (sentence.startsWith("$GPRMA") && deviceSession != null) {
return decodeGprma(deviceSession, sentence);
} else if (sentence.startsWith("$TRCCR") && deviceSession != null) {
return decodeTrccr(deviceSession, sentence);
} else if (sentence.startsWith("$GPIOP")) {
return decodeGpiop(deviceSession, sentence);
} else if (sentence.startsWith("QZE")) {
return decodeQze(channel, remoteAddress, sentence);
} else if (sentence.startsWith("$PUBX")) {
return decodePubx(channel, remoteAddress, sentence);
}
return null;
}
}
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