/* * Copyright 2015 - 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.BitUtil; 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.SocketAddress; import java.util.Date; import java.util.LinkedList; import java.util.List; import java.util.regex.Pattern; public class GoSafeProtocolDecoder extends BaseProtocolDecoder { public GoSafeProtocolDecoder(GoSafeProtocol protocol) { super(protocol); } private static final Pattern PATTERN = new PatternBuilder() .text("*GS") // header .number("d+,") // protocol version .number("(d+),") // imei .number("(dd)(dd)(dd)") // time .number("(dd)(dd)(dd),") // date .expression("(.*)#?") // data .compile(); private static final Pattern PATTERN_ITEM = new PatternBuilder() .number("(x+)?,").optional() // event .groupBegin() .text("SYS:") .expression("[^,]*,") .groupEnd("?") .groupBegin() .text("GPS:") .expression("([AV]);") // validity .number("(d+);") // satellites .number("([NS])(d+.d+);") // latitude .number("([EW])(d+.d+);") // longitude .number("(d+)?;") // speed .number("(d+);") // course .number("(d+);") // altitude .number("(d+.d+)") // hdop .number("(?:;d+.d+)?") // vdop .expression(",?") .groupEnd() .groupBegin() .text("GSM:") .number("d+;") // registration .number("d+;") // gsm signal .number("(d+);") // mcc .number("(d+);") // mnc .number("(x+);") // lac .number("(x+);") // cid .number("-d+") // rssi .expression("[^,]*,?") .groupEnd("?") .groupBegin() .text("COT:") .number("(d+)") // odometer .number("(?:;d+:d+:d+)?") // engine hours .expression(",?") .groupEnd("?") .groupBegin() .text("ADC:") .number("(d+.d+);") // power .number("(d+.d+),?") // battery .groupEnd("?") .groupBegin() .text("DTT:") .number("(x+);") // status .expression("[^;]*;") .number("x+;") // geo-fence 0-119 .number("x+;") // geo-fence 120-155 .number("x+,?") // event status .groupEnd("?") .groupBegin() .text("ETD:").expression("[^,]*,?") .groupEnd("?") .groupBegin() .text("OBD:") .number("(x+),?") .groupEnd("?") .groupBegin() .text("FUL:").expression("[^,]*,?") .groupEnd("?") .groupBegin() .text("TRU:").expression("[^,]*,?") .groupEnd("?") .compile(); private static final Pattern PATTERN_OLD = new PatternBuilder() .text("*GS") // header .number("d+,") // protocol version .number("(d+),") // imei .text("GPS:") .number("(dd)(dd)(dd);") // time .number("d;").optional() // fix type .expression("([AV]);") // validity .number("([NS])(d+.d+);") // latitude .number("([EW])(d+.d+);") // longitude .number("(d+)?;") // speed .number("(d+);") // course .number("(d+.?d*)").optional() // hdop .number("(dd)(dd)(dd)") // date .any() .compile(); private Position decodePosition(DeviceSession deviceSession, Parser parser, Date time) { Position position = new Position(); position.setProtocol(getProtocolName()); position.setDeviceId(deviceSession.getDeviceId()); if (time != null) { position.setTime(time); } position.set(Position.KEY_EVENT, parser.next()); position.setValid(parser.next().equals("A")); position.set(Position.KEY_SATELLITES, parser.next()); position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG)); position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG)); position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble())); position.setCourse(parser.nextDouble()); position.setAltitude(parser.nextDouble()); position.set(Position.KEY_HDOP, parser.next()); if (parser.hasNext(4)) { position.set(Position.KEY_MCC, parser.nextInt()); position.set(Position.KEY_MNC, parser.nextInt()); position.set(Position.KEY_LAC, parser.nextInt(16)); position.set(Position.KEY_CID, parser.nextInt(16)); } if (parser.hasNext()) { position.set(Position.KEY_ODOMETER, parser.nextInt()); } position.set(Position.KEY_POWER, parser.next()); position.set(Position.KEY_BATTERY, parser.next()); String status = parser.next(); if (status != null) { position.set(Position.KEY_IGNITION, BitUtil.check(Integer.parseInt(status, 16), 13)); position.set(Position.KEY_STATUS, status); } if (parser.hasNext()) { position.set("obd", parser.next()); } return position; } @Override protected Object decode( Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { if (channel != null) { channel.write("1234"); } String sentence = (String) msg; Pattern pattern = PATTERN; if (sentence.startsWith("*GS02")) { pattern = PATTERN_OLD; } Parser parser = new Parser(pattern, (String) msg); if (!parser.matches()) { return null; } DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next()); if (deviceSession == null) { return null; } if (pattern == PATTERN_OLD) { Position position = new Position(); position.setProtocol(getProtocolName()); position.setDeviceId(deviceSession.getDeviceId()); DateBuilder dateBuilder = new DateBuilder() .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt()); position.setValid(parser.next().equals("A")); position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG)); position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG)); position.setSpeed(parser.nextDouble()); position.setCourse(parser.nextDouble()); position.set(Position.KEY_HDOP, parser.next()); dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt()); position.setTime(dateBuilder.getDate()); return position; } else { Date time = null; if (parser.hasNext(6)) { DateBuilder dateBuilder = new DateBuilder() .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt()) .setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt()); time = dateBuilder.getDate(); } List<Position> positions = new LinkedList<>(); Parser itemParser = new Parser(PATTERN_ITEM, parser.next()); while (itemParser.find()) { positions.add(decodePosition(deviceSession, itemParser, time)); } return positions; } } }