1 files changed, 97 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java
new file mode 100644
index 000000000..ae0383e5c
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2012 - 2018 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.NetworkMessage;
+import org.traccar.Protocol;
+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 Gl100ProtocolDecoder extends BaseProtocolDecoder {
+
+    public Gl100ProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("+RESP:")
+            .expression("GT...,")
+            .number("(d{15}),")                  // imei
+            .groupBegin()
+            .number("d+,")                       // number
+            .number("d,")                        // reserved / geofence id
+            .number("d+")                        // reserved / geofence alert // battery
+            .or()
+            .number("[^,]*")                     // calling number
+            .groupEnd(",")
+            .expression("([01]),")               // gps fix
+            .number("(d+.d),")                   // speed
+            .number("(d+),")                     // course
+            .number("(-?d+.d),")                 // altitude
+            .number("d*,")                       // gps accuracy
+            .number("(-?d+.d+),")                // longitude
+            .number("(-?d+.d+),")                // latitude
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd),")             // time (hhmmss)
+            .any()
+            .compile();
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        String sentence = (String) msg;
+
+        if (sentence.contains("AT+GTHBD=") && channel != null) {
+            String response = "+RESP:GTHBD,GPRS ACTIVE,";
+            response += sentence.substring(9, sentence.lastIndexOf(','));
+            response += '\0';
+            channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); // heartbeat response
+        }
+
+        Parser parser = new Parser(PATTERN, sentence);
+        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.setValid(parser.nextInt(0) == 0);
+        position.setSpeed(parser.nextDouble(0));
+        position.setCourse(parser.nextDouble(0));
+        position.setAltitude(parser.nextDouble(0));
+        position.setLongitude(parser.nextDouble(0));
+        position.setLatitude(parser.nextDouble(0));
+
+        position.setTime(parser.nextDateTime());
+
+        return position;
+    }
+
+}