From 67e2c8f8e0f8753e919e653fc2bca9cfb9939ff2 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Tue, 23 Jun 2015 14:04:52 +1200
Subject: Start MXT protocol implementation

---
 src/org/traccar/protocol/MxtProtocolDecoder.java | 93 ++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/org/traccar/protocol/MxtProtocolDecoder.java

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

diff --git a/src/org/traccar/protocol/MxtProtocolDecoder.java b/src/org/traccar/protocol/MxtProtocolDecoder.java
new file mode 100644
index 000000000..014033be4
--- /dev/null
+++ b/src/org/traccar/protocol/MxtProtocolDecoder.java
@@ -0,0 +1,93 @@
+/*
+ * 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.buffer.ChannelBuffer;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.helper.ChannelBufferTools;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import java.util.Date;
+
+public class MxtProtocolDecoder extends BaseProtocolDecoder {
+
+    public MxtProtocolDecoder(String protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        ChannelBuffer buf = (ChannelBuffer) msg;
+
+        /*buf.readByte(); // header
+        buf.readUnsignedByte(); // version
+        buf.readUnsignedByte(); // type
+
+        // Create new position
+        Position position = new Position();
+        position.setProtocol(getProtocol());
+
+        // Get device id
+        String imei = ChannelBufferTools.readHexString(buf, 16).substring(1);
+        if (!identify(imei)) {
+            return null;
+        }
+        position.setDeviceId(getDeviceId());
+
+        // Time
+        long seconds = buf.readUnsignedInt() & 0x7fffffffl;
+        seconds += 946684800l; // 2000-01-01 00:00
+        position.setTime(new Date(seconds * 1000));
+        
+        boolean hasLocation = false;
+
+        while (buf.readableBytes() > 3) {
+
+            short type = buf.readUnsignedByte();
+            short length = buf.readUnsignedByte();
+
+            switch (type) {
+
+                case DATA_GPS:
+                    hasLocation = true;
+                    position.setValid(true);
+                    position.setLatitude(buf.readInt() / 1000000.0);
+                    position.setLongitude(buf.readInt() / 1000000.0);
+                    position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort()));
+                    position.setCourse(buf.readUnsignedShort());
+                    position.set(Event.KEY_HDOP, buf.readUnsignedShort());
+                    break;
+
+                default:
+                    buf.skipBytes(length);
+                    break;
+            }
+        }
+
+        if (hasLocation) {
+            return position;
+        }*/
+        return null;
+    }
+
+}
-- 
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