1 files changed, 113 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/Gl200ProtocolDecoder.java b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
new file mode 100644
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+++ b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
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+/*
+ * Copyright 2012 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.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.TimeZone;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.traccar.Position;
+import org.traccar.DataManager;
+import org.traccar.GenericProtocolDecoder;
+
+/**
+ * GL200 tracker protocol decoder
+ */
+public class Gl200ProtocolDecoder extends GenericProtocolDecoder {
+
+    /**
+     * Initialize
+     */
+    public Gl200ProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+        super(dataManager, resetDelay);
+    }
+
+    /**
+     * Regular expressions pattern
+     */
+    static private Pattern pattern = Pattern.compile(
+            "\\+RESP:GT...," +
+            "\\d{6}," +                         // Protocol version
+            "(\\d{15})," +                      // IMEI
+            "[^,]*," +                          // Device name
+            "(?:(?:\\d," +                      // Report ID / Geo mode
+            "\\d*," +                           // Report type / Geo radius
+            "\\d*)|" +                          // Number / Geo check interval
+            "(?:[^,]*))," +                     // Call number
+            "(\\d*)," +                         // GPS accuracy
+            "(\\d+.\\d)," +                     // Speed
+            "(\\d+)," +                         // Course
+            "(-?\\d+.\\d)," +                   // Altitude
+            "(-?\\d+.\\d+)," +                  // Longitude
+            "(-?\\d+.\\d+)," +                  // Latitude
+            "(\\d{4})(\\d{2})(\\d{2})" +        // Date (YYYYMMDD)
+            "(\\d{2})(\\d{2})(\\d{2})," +       // Time (HHMMSS)
+            ".*");
+
+    /**
+     * Decode message
+     */
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        String sentence = (String) msg;
+        
+        // Parse message
+        Matcher parser = pattern.matcher(sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        // Create new position
+        Position position = new Position();
+
+        Integer index = 1;
+
+        // Get device by IMEI
+        String imei = parser.group(index++);
+        position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
+        
+        // Validity
+        position.setValid(Integer.valueOf(parser.group(index++)) == 0 ? false : true);
+        
+        // Position info
+        position.setSpeed(Double.valueOf(parser.group(index++)));
+        position.setCourse(Double.valueOf(parser.group(index++)));
+        position.setAltitude(Double.valueOf(parser.group(index++)));
+        position.setLongitude(Double.valueOf(parser.group(index++)));
+        position.setLatitude(Double.valueOf(parser.group(index++)));
+        
+        // Date
+        Calendar time = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
+        time.clear();
+        time.set(Calendar.YEAR, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
+        time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
+
+        // Time
+        time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
+        position.setTime(time.getTime());
+
+        return position;
+    }
+
+}