/* * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com) * * 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 java.net.SocketAddress; import java.util.Date; import java.util.LinkedList; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.jboss.netty.channel.Channel; import org.traccar.BaseProtocolDecoder; import org.traccar.helper.BitUtil; import org.traccar.helper.DateBuilder; import org.traccar.helper.PatternBuilder; import org.traccar.model.Event; import org.traccar.model.Position; public class GoSafeProtocolDecoder extends BaseProtocolDecoder { public GoSafeProtocolDecoder(GoSafeProtocol protocol) { super(protocol); } private static final Pattern PATTERN = new PatternBuilder() .txt("*GS") // header .num("d+,") // protocol version .num("(d+),") // imei .num("(dd)(dd)(dd)") // time .num("(dd)(dd)(dd),") // date .xpr("(.*)#?") // data .compile(); private static final Pattern PATTERN_ITEM = new PatternBuilder() .num("(x+)?,") // event .groupBegin() .txt("SYS:") .nxt(",") .groupEnd(true) .groupBegin() .txt("GPS:") .xpr("([AV]);") // validity .num("(d+);") // satellites .num("([NS])(d+.d+);") // latitude .num("([EW])(d+.d+);") // longitude .num("(d+);") // speed .num("(d+);") // course .num("(d+);") // altitude .num("(d+.d+)") // hdop .opn(";d+.d+") // vdop .xpr(",?") .groupEnd(false) .groupBegin() .txt("COT:") .num("(d+)") // odometer .opn(";d+:d+:d+") // engine hours .xpr(",?") .groupEnd(false) .groupBegin() .txt("ADC:") .num("(d+.d+);") // power .num("(d+.d+),?") // battery .groupEnd(true) .groupBegin() .txt("DTT:") .num("(x+);") // status .nxt(";") .num("x+;") // geo-fence 0-119 .num("x+;") // geo-fence 120-155 .num("x+,?") // event status .groupEnd(true) .groupBegin() .txt("ETD:").not(",").xpr(",?") .groupEnd(true) .groupBegin() .txt("OBD:").not(",").xpr(",?") .groupEnd(true) .groupBegin() .txt("FUL:").not(",").xpr(",?") .groupEnd(true) .groupBegin() .txt("TRU:").not(",").xpr(",?") .groupEnd(true) .compile(); private Position decodePosition(Matcher parser, Date time) { Position position = new Position(); position.setDeviceId(getDeviceId()); position.setTime(time); Integer index = 1; position.set(Event.KEY_EVENT, parser.group(index++)); // Validity position.setValid(parser.group(index++).equals("A")); position.set(Event.KEY_SATELLITES, parser.group(index++)); // Latitude String hemisphere = parser.group(index++); Double latitude = Double.parseDouble(parser.group(index++)); if (hemisphere.equals("S")) latitude = -latitude; position.setLatitude(latitude); // Longitude hemisphere = parser.group(index++); Double longitude = Double.parseDouble(parser.group(index++)); if (hemisphere.equals("W")) longitude = -longitude; position.setLongitude(longitude); // Other position.setSpeed(Double.parseDouble(parser.group(index++))); position.setCourse(Double.parseDouble(parser.group(index++))); position.setAltitude(Double.parseDouble(parser.group(index++))); position.set(Event.KEY_HDOP, parser.group(index++)); position.set(Event.KEY_ODOMETER, parser.group(index++)); position.set(Event.KEY_POWER, parser.group(index++)); position.set(Event.KEY_BATTERY, parser.group(index++)); String status = parser.group(index++); if (status != null) { position.set(Event.KEY_IGNITION, BitUtil.check(Integer.parseInt(status, 16), 13)); position.set(Event.KEY_STATUS, status); } return position; } @Override protected Object decode( Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { String sentence = (String) msg; if (channel != null) { channel.write("1234"); } Matcher parser = PATTERN.matcher(sentence); if (!parser.matches()) { return null; } Integer index = 1; if (!identify(parser.group(index++), channel, remoteAddress)) { return null; } DateBuilder dateBuilder = new DateBuilder() .setTime(parser.group(index++), parser.group(index++), parser.group(index++)) .setDateReverse(parser.group(index++), parser.group(index++), parser.group(index++)); List<Position> positions = new LinkedList<>(); Matcher itemParser = PATTERN_ITEM.matcher(parser.group(index++)); while (itemParser.find()) { positions.add(decodePosition(itemParser, dateBuilder.getDate())); } return positions; } }