Merge pull request #65 from hackerunet/master

EV601 GPS Support

src/org/traccar/protocol/Ev603ProtocolDecoder.java

@@ -0,0 +1,129 @@
+/*
+ * Copyright 2012 Anton Tananaev (anton.tananaev@gmail.com)
+ * Enhancement done by Luis Parada (luis.parada@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.TimeZone;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.traccar.GenericProtocolDecoder;
+import org.traccar.model.DataManager;
+import org.traccar.model.Position;
+
+/**
+ *
+ * Ev603 Protocol Decoder
+ */
+public class Ev603ProtocolDecoder extends GenericProtocolDecoder{
+    
+    /**
+     * Initialize
+     */
+    public Ev603ProtocolDecoder(DataManager dataManager, Integer resetDelay) {
+        super(dataManager, resetDelay);
+    }
+    
+    /**
+     * Regular expressions pattern
+     */
+    static private Pattern pattern = Pattern.compile(
+            "!A," +                              // Start Character
+            "([\\d]{2})\\/([\\d]{2})\\/([\\d]{2})," +   // Date dd/mm/YY
+            "([\\d]{2}):([\\d]{2}):([\\d]{2})," +       // Time hh:mm:ss
+            "(-?[\\d]{2})([\\d]{2}.[\\d]{4})," +  // Latitude (DDMM.MMMM)
+            "(-?[\\d]{3})([\\d]{2}.[\\d]{4})," +  // Longitude (DDDMM.MMMM)
+            "([\\d]+.[\\d]{2})," +              // Speed
+            "([\\d]{2-3}+.[\\d]{1-3})," +       // degrees
+            ".*");
+    
+    static private Pattern deviceImei = Pattern.compile("([\\d]+);");
+
+    /**
+     * 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();
+        StringBuilder extendedInfo = new StringBuilder("<protocol>ev603</protocol>");
+
+        // Get imei from First message
+        if (sentence.contains("!1,")) {
+            Matcher imeiparser = deviceImei.matcher(sentence);
+            if (!imeiparser.matches()){
+                return null;
+            }else{
+                String imei = imeiparser.group(1);
+                position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
+            }
+        }
+        
+        Integer index = 1;
+
+        // Date
+        Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+        time.clear();
+        time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
+        time.set(Calendar.YEAR, 2000 + 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());
+
+        // Validity
+        position.setValid(true);
+
+        // Latitude
+        Double latitude = Double.valueOf(parser.group(index++));
+        latitude += Double.valueOf(parser.group(index++)) / 60;
+        position.setLatitude(latitude);
+
+        // Longitude
+        Double lonlitude = Double.valueOf(parser.group(index++));
+        lonlitude += Double.valueOf(parser.group(index++)) / 60;
+        position.setLongitude(lonlitude);
+
+        // Altitude
+        position.setAltitude(0.0);
+
+        // Speed
+        position.setSpeed(Double.valueOf(parser.group(index++)));
+        position.setCourse(0.0);
+
+        // Extended info
+        extendedInfo.append("<course>");
+        extendedInfo.append(parser.group(index++));
+        extendedInfo.append("</course>");
+
+        return position;
+    }
+}