/* * Copyright 2014 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.Parser; import org.traccar.helper.PatternBuilder; import org.traccar.model.Position; import java.net.SocketAddress; import java.util.regex.Pattern; public class FreedomProtocolDecoder extends BaseProtocolDecoder { public FreedomProtocolDecoder(FreedomProtocol protocol) { super(protocol); } private static final Pattern PATTERN = new PatternBuilder() .text("IMEI,") .number("(d+),") // imei .number("(dddd)/(dd)/(dd), ") // date (yyyy/dd/mm) .number("(dd):(dd):(dd), ") // time (hh:mm:ss) .expression("([NS]), ") .number("Lat:(dd)(d+.d+), ") // latitude .expression("([EW]), ") .number("Lon:(ddd)(d+.d+), ") // longitude .text("Spd:").number("(d+.d+)") // speed .any() .compile(); @Override protected Object decode( Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { Parser parser = new Parser(PATTERN, (String) msg); if (!parser.matches()) { return null; } Position position = new Position(); position.setProtocol(getProtocolName()); DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next()); if (deviceSession == null) { return null; } position.setDeviceId(deviceSession.getDeviceId()); position.setValid(true); position.setTime(parser.nextDateTime()); position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN)); position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN)); position.setSpeed(parser.nextDouble(0)); return position; } }