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Diffstat (limited to 'src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java108
1 files changed, 108 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java
new file mode 100644
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+++ b/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2014 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2014 Rohit
+ *
+ * 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.Protocol;
+import org.traccar.helper.DateBuilder;
+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 CarTrackProtocolDecoder extends BaseProtocolDecoder {
+
+ public CarTrackProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN = new PatternBuilder()
+ .text("$$") // header
+ .number("(d+)") // device id
+ .text("?").expression("*")
+ .text("&A")
+ .number("(dddd)") // command
+ .text("&B")
+ .number("(dd)(dd)(dd).(ddd),") // time (hhmmss.sss)
+ .expression("([AV]),") // validity
+ .number("(dd)(dd.dddd),") // latitude
+ .expression("([NS]),")
+ .number("(ddd)(dd.dddd),") // longitude
+ .expression("([EW]),")
+ .number("(d+.d*)?,") // speed
+ .number("(d+.d*)?,") // course
+ .number("(dd)(dd)(dd)") // date (ddmmyy)
+ .any()
+ .expression("&C([^&]*)") // io
+ .expression("&D([^&]*)") // odometer
+ .expression("&E([^&]*)") // alarm
+ .expression("&Y([^&]*)").optional() // adc
+ .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(getProtocolName());
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.set(Position.KEY_COMMAND, parser.next());
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
+
+ position.setValid(parser.next().equals("A"));
+ position.setLatitude(parser.nextCoordinate());
+ position.setLongitude(parser.nextCoordinate());
+ position.setSpeed(parser.nextDouble(0));
+ position.setCourse(parser.nextDouble(0));
+
+ dateBuilder.setDateReverse(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
+ position.setTime(dateBuilder.getDate());
+
+ position.set(Position.PREFIX_IO + 1, parser.next());
+
+ String odometer = parser.next();
+ odometer = odometer.replace(":", "A");
+ odometer = odometer.replace(";", "B");
+ odometer = odometer.replace("<", "C");
+ odometer = odometer.replace("=", "D");
+ odometer = odometer.replace(">", "E");
+ odometer = odometer.replace("?", "F");
+ position.set(Position.KEY_ODOMETER, Integer.parseInt(odometer, 16));
+
+ parser.next(); // there is no meaningful alarms
+ position.set(Position.PREFIX_ADC + 1, parser.next());
+
+ return position;
+ }
+
+}