diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/ItsProtocolDecoder.java')
| -rw-r--r-- | src/main/java/org/traccar/protocol/ItsProtocolDecoder.java | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java b/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java new file mode 100644 index 000000000..482f34e65 --- /dev/null +++ b/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java @@ -0,0 +1,170 @@ +/* + * Copyright 2018 - 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.DeviceSession; +import org.traccar.NetworkMessage; +import org.traccar.Protocol; +import org.traccar.helper.Parser; +import org.traccar.helper.PatternBuilder; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.Position; + +import java.net.SocketAddress; +import java.util.regex.Pattern; + +public class ItsProtocolDecoder extends BaseProtocolDecoder { + + public ItsProtocolDecoder(Protocol protocol) { + super(protocol); + } + + private static final Pattern PATTERN = new PatternBuilder() + .expression("[^$]*") + .text("$") + .expression(",?[^,]+,") // event + .groupBegin() + .expression("[^,]+,") // vendor + .expression("[^,]+,") // firmware version + .expression("[^,]+,") // type + .number("d+,") + .expression("[LH],") // history + .or() + .expression("[^,]+,") // type + .groupEnd() + .number("(d{15}),") // imei + .groupBegin() + .expression("(..),") // status + .or() + .expression("[^,]*,") // vehicle registration + .number("([01]),") // valid + .groupEnd() + .number("(dd),?(dd),?(dddd),") // date (ddmmyyyy) + .number("(dd),?(dd),?(dd),") // time (hhmmss) + .expression("([AV]),").optional() // valid + .number("(d+.d+),([NS]),") // latitude + .number("(d+.d+),([EW]),") // longitude + .groupBegin() + .number("(d+.?d*),") // speed + .number("(d+.?d*),") // course + .number("(d+),") // satellites + .groupBegin() + .number("(d+.?d*),") // altitude + .number("d+.?d*,") // pdop + .number("d+.?d*,") // hdop + .expression("[^,]*,") + .number("([01]),") // ignition + .number("([01]),") // charging + .number("(d+.?d*),") // power + .number("(d+.?d*),") // battery + .number("[01],") // emergency + .expression("[CO]?,") // tamper + .number("(?:x+,){5}") // main cell + .number("(?:-?x+,){12}") // other cells + .number("([01]{4}),") // inputs + .number("([01]{2}),") // outputs + .groupEnd("?") + .or() + .number("(-?d+.d+),") // altitude + .number("(d+.d+),") // speed + .groupEnd() + .any() + .compile(); + + private String decodeAlarm(String status) { + switch (status) { + case "WD": + case "EA": + return Position.ALARM_SOS; + case "BL": + return Position.ALARM_LOW_BATTERY; + case "HB": + return Position.ALARM_BRAKING; + case "HA": + return Position.ALARM_ACCELERATION; + case "RT": + return Position.ALARM_CORNERING; + case "OS": + return Position.ALARM_OVERSPEED; + default: + return null; + } + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + String sentence = (String) msg; + + if (channel != null && sentence.startsWith("$,01,")) { + channel.writeAndFlush(new NetworkMessage("$,1,*", remoteAddress)); + } + + 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()); + + if (parser.hasNext()) { + position.set(Position.KEY_ALARM, decodeAlarm(parser.next())); + } + + if (parser.hasNext()) { + position.setValid(parser.nextInt() == 1); + } + position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS)); + if (parser.hasNext()) { + position.setValid(parser.next().equals("A")); + } + position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM)); + position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM)); + + if (parser.hasNext(3)) { + position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble())); + position.setCourse(parser.nextDouble()); + position.set(Position.KEY_SATELLITES, parser.nextInt()); + } + + if (parser.hasNext(7)) { + position.setAltitude(parser.nextDouble()); + position.set(Position.KEY_IGNITION, parser.nextInt() > 0); + position.set(Position.KEY_CHARGE, parser.nextInt() > 0); + position.set(Position.KEY_POWER, parser.nextDouble()); + position.set(Position.KEY_BATTERY, parser.nextDouble()); + position.set(Position.KEY_INPUT, parser.nextBinInt()); + position.set(Position.KEY_OUTPUT, parser.nextBinInt()); + } + + if (parser.hasNext(2)) { + position.setAltitude(parser.nextDouble()); + position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble())); + } + + return position; + } + +} |