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-rw-r--r--src/org/traccar/protocol/LdplProtocolDecoder.java117
1 files changed, 117 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/LdplProtocolDecoder.java b/src/org/traccar/protocol/LdplProtocolDecoder.java
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+/*
+ * Copyright 2013 - 2014 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.regex.Pattern;
+
+import org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.Parser;
+import org.traccar.helper.Parser.CoordinateFormat;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.model.Position;
+
+public class LdplProtocolDecoder extends BaseProtocolDecoder {
+
+ public LdplProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN = new PatternBuilder()
+ .text("*ID") // start of frame
+ .number("(d+),") // command code
+ .number("(d+),") // imei
+ .number("(dd)(dd)(dd),") // current date
+ .number("(dd)(dd)(dd),") // current time
+ .expression("([A|V]),") // gps fix
+ .number("(dd)(dd).?(d+),([NS]),") // latitude
+ .number("(ddd)(dd).?(d+),([EW]),") // longitude
+ .number("(d{1,3}.dd),") // speed
+ .number("(d{1,3}.dd),") // course
+ .number("(d{1,2}),") // sats
+ .number("(d{1,3}),") // gsm signal strength
+ .expression("([A|N|S]),") // vehicle status
+ .expression("([0|1]),") // main power status
+ .number("(d.dd),") // internal battery voltage
+ .expression("([0|1]),") // sos alert
+ .expression("([0|1]),") // body tamper
+ .expression("([0|1])([0|1]),") // ac status + ign_status
+ .expression("([0|1|2]),") // output1 status
+ .number("(d{1,3}),") // adc1
+ .number("(d{1,3}),") // adc2
+ .expression("([0-9A-Z]{3}),") // software version
+ .expression("([L|R]),") // message type
+ .expression("([0-9A-Z]{4})#") // crc
+ .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());
+ position.set(Position.KEY_TYPE, parser.nextInt());
+
+ if (!identify(parser.next(), channel, remoteAddress)) {
+ return null;
+ }
+ position.setDeviceId(getDeviceId());
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt())
+ .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
+ position.setTime(dateBuilder.getDate());
+
+ if ("A".equals(parser.next())) {
+ position.setValid(true);
+ } else {
+ position.setValid(false);
+ }
+
+ position.setLatitude(parser.nextCoordinate(CoordinateFormat.DEG_MIN_MIN_HEM));
+ position.setLongitude(parser.nextCoordinate(CoordinateFormat.DEG_MIN_MIN_HEM));
+
+ position.setSpeed(parser.nextDouble());
+ position.setCourse(parser.nextDouble());
+
+ position.set(Position.KEY_SATELLITES, parser.nextInt());
+ position.set(Position.KEY_GSM, parser.nextInt());
+ parser.next(); // vehicle status
+ position.set(Position.KEY_POWER, parser.nextInt());
+ position.set(Position.KEY_BATTERY, parser.nextDouble());
+ position.set(Position.KEY_ALARM, parser.nextInt());
+ parser.nextInt(); // body tamper
+ parser.nextInt(); // acStatus
+ position.set(Position.KEY_IGNITION, parser.nextInt());
+ position.set(Position.KEY_OUTPUT, parser.nextInt());
+ position.set(Position.PREFIX_ADC + 1, parser.nextInt());
+ position.set(Position.PREFIX_ADC + 2, parser.nextInt());
+ position.set(Position.KEY_VERSION, parser.next());
+ position.set(Position.KEY_ARCHIVE, parser.next().equals("R"));
+
+ parser.next(); // checksum
+
+ return position;
+ }
+
+}