/* * Copyright 2017 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.helper.Parser; import org.traccar.helper.PatternBuilder; import org.traccar.helper.UnitsConverter; import org.traccar.model.Position; import java.net.SocketAddress; import java.util.LinkedList; import java.util.List; import java.util.regex.Pattern; public class M2cProtocolDecoder extends BaseProtocolDecoder { public M2cProtocolDecoder(M2cProtocol protocol) { super(protocol); } private static final Pattern PATTERN = new PatternBuilder() .text("#M2C,") .expression("[^,]+,") // model .expression("[^,]+,") // firmware .number("d+,") // protocol .number("(d+),") // imei .number("(d+),") // index .expression("([LH]),") // archive .number("d+,") // priority .number("(d+),") // event .number("(dd)(dd)(dd),") // date (yymmdd) .number("(dd)(dd)(dd),") // time (hhmmss) .number("(-?d+.d+),") // latitude .number("(-?d+.d+),") // longitude .number("(-?d+),") // altitude .number("(d+),") // course .number("(d+.d+),") // speed .number("(d+),") // satellites .number("(d+),") // odometer .number("(d+),") // input .number("(d+),") // output .number("(d+),") // power .number("(d+),") // battery .number("(d+),") // adc 1 .number("(d+),") // adc 2 .number("(d+.?d*),") // temperature .any() .compile(); private Position decodePosition(Channel channel, SocketAddress remoteAddress, String line) { Parser parser = new Parser(PATTERN, line); 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_INDEX, parser.nextInt()); if (parser.next().equals("H")) { position.set(Position.KEY_ARCHIVE, true); } position.set(Position.KEY_EVENT, parser.nextInt()); position.setValid(true); position.setTime(parser.nextDateTime()); position.setLatitude(parser.nextDouble()); position.setLongitude(parser.nextDouble()); position.setAltitude(parser.nextInt()); position.setCourse(parser.nextInt()); position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble())); position.set(Position.KEY_SATELLITES, parser.nextInt()); position.set(Position.KEY_ODOMETER, parser.nextLong()); position.set(Position.KEY_INPUT, parser.nextInt()); position.set(Position.KEY_OUTPUT, parser.nextInt()); position.set(Position.KEY_POWER, parser.nextInt() * 0.001); position.set(Position.KEY_BATTERY, parser.nextInt() * 0.001); position.set(Position.PREFIX_ADC + 1, parser.nextInt()); position.set(Position.PREFIX_ADC + 2, parser.nextInt()); position.set(Position.PREFIX_TEMP + 1, parser.nextDouble()); return position; } @Override protected Object decode( Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { String sentence = (String) msg; sentence = sentence.substring(1); // remove start symbol List<Position> positions = new LinkedList<>(); for (String line : sentence.split("\r\n")) { if (!line.isEmpty()) { Position position = decodePosition(channel, remoteAddress, line); if (position != null) { positions.add(position); } } } return positions; } }