From a228c176c61dcb69815d5667a418f6d77eb40d16 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Wed, 23 Sep 2015 13:11:12 +1200
Subject: Implement GPSMTA app protocol

---
 .../traccar/protocol/GpsmtaProtocolDecoder.java    | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 src/org/traccar/protocol/GpsmtaProtocolDecoder.java

(limited to 'src/org/traccar/protocol/GpsmtaProtocolDecoder.java')

diff --git a/src/org/traccar/protocol/GpsmtaProtocolDecoder.java b/src/org/traccar/protocol/GpsmtaProtocolDecoder.java
new file mode 100644
index 000000000..32648bc5e
--- /dev/null
+++ b/src/org/traccar/protocol/GpsmtaProtocolDecoder.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2015 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 org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.TimeZone;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class GpsmtaProtocolDecoder extends BaseProtocolDecoder {
+
+    public GpsmtaProtocolDecoder(GpsmtaProtocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern pattern = Pattern.compile(
+            "(\\d+) " +                         // UID
+            "(\\d+) " +                         // Time
+            "(\\d+\\.\\d+) " +                  // Latitude
+            "(\\d+\\.\\d+) " +                  // Longitude
+            "(\\d+) " +                         // Speed
+            "(\\d+) " +                         // Course
+            "(\\d+) " +                         // Accuracy
+            "(\\d+) " +                         // Altitude
+            "(\\d+) " +                         // Flags
+            "(\\d+) " +                         // Battery
+            "(\\d+) " +                         // Temperature
+            "(\\d).*");                         // Changing status
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg)
+            throws Exception {
+
+        String sentence = (String) msg;
+
+        Matcher parser = pattern.matcher(sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        Position position = new Position();
+        position.setProtocol(getProtocolName());
+
+        Integer index = 1;
+
+        if (!identify(parser.group(index++), channel, remoteAddress)) {
+            return null;
+        }
+        position.setDeviceId(getDeviceId());
+
+        String time = parser.group(index++);
+        position.setTime(new Date(Long.parseLong(time) * 1000));
+
+        position.setLatitude(Double.parseDouble(parser.group(index++)));
+        position.setLongitude(Double.parseDouble(parser.group(index++)));
+        position.setSpeed(Integer.parseInt(parser.group(index++)));
+        position.setCourse(Integer.parseInt(parser.group(index++)));
+        index++; // accuracy
+        position.setAltitude(Integer.parseInt(parser.group(index++)));
+
+        position.set(Event.KEY_STATUS, Integer.parseInt(parser.group(index++)));
+        position.set(Event.KEY_BATTERY, Integer.parseInt(parser.group(index++)));
+        position.set(Event.PREFIX_TEMP + 1, Integer.parseInt(parser.group(index++)));
+        position.set(Event.KEY_CHARGE, Integer.parseInt(parser.group(index++)) == 1);
+
+        if (channel != null) {
+            channel.write(time, remoteAddress);
+        }
+
+        return position;
+    }
+
+}
-- 
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