1 files changed, 152 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/WialonProtocolDecoder.java b/src/org/traccar/protocol/WialonProtocolDecoder.java
new file mode 100644
index 000000000..c3ea94624
--- /dev/null
+++ b/src/org/traccar/protocol/WialonProtocolDecoder.java
@@ -0,0 +1,152 @@
+/*
+ * Copyright 2013 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.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.BaseProtocolDecoder;
+import org.traccar.ServerManager;
+import org.traccar.helper.Log;
+import org.traccar.model.Position;
+
+public class WialonProtocolDecoder extends BaseProtocolDecoder {
+
+    private Long deviceId;
+
+    public WialonProtocolDecoder(ServerManager serverManager) {
+        super(serverManager);
+    }
+
+    static private Pattern pattern = Pattern.compile(
+            "#S?D#" +
+            "(\\d{2})(\\d{2})(\\d{2});" +  // Date (DDMMYY)
+            "(\\d{2})(\\d{2})(\\d{2});" +  // Time (HHMMSS)
+            "(\\d{2})(\\d{2}\\.\\d+);" +   // Latitude (DDMM.MMMM)
+            "([NS]);" +
+            "(\\d{3})(\\d{2}\\.\\d+);" +   // Longitude (DDDMM.MMMM)
+            "([EW]);" +
+            "(\\d+);" +                    // Speed
+            "(\\d+);" +                    // Course
+            "(\\d+);" +                    // Altitude
+            "(\\d+)" +                     // Satellites
+            ".*");                         // Full format
+
+    private void sendResponse(Channel channel, String prefix, Integer number) {
+        if (channel != null) {
+            StringBuilder response = new StringBuilder(prefix);
+            if (number != null) {
+                response.append(number);
+            }
+            response.append("\r\n");
+            channel.write(response.toString());
+        }
+    }
+
+    @Override
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        String sentence = (String) msg;
+
+        // Detect device ID
+        if (sentence.startsWith("#L#")) {
+            String imei = sentence.substring(3, sentence.indexOf(';'));
+            try {
+                deviceId = getDataManager().getDeviceByImei(imei).getId();
+                sendResponse(channel, "#AL#", 1);
+            } catch(Exception error) {
+                Log.warning("Unknown device - " + imei);
+            }
+        }
+
+        // Heartbeat
+        else if (sentence.startsWith("#P#")) {
+            sendResponse(channel, "#AP#", null);
+        }
+        
+        // Parse message
+        else if ((sentence.startsWith("#SD#") || sentence.startsWith("#D#")) && deviceId != null) {
+
+            // Parse message
+            Matcher parser = pattern.matcher(sentence);
+            if (!parser.matches()) {
+                return null;
+            }
+
+            // Create new position
+            Position position = new Position();
+            StringBuilder extendedInfo = new StringBuilder("<protocol>wialon</protocol>");
+            position.setDeviceId(deviceId);
+
+            Integer index = 1;
+
+            // Date and Time
+            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.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());
+
+            // Latitude
+            Double latitude = Double.valueOf(parser.group(index++));
+            latitude += Double.valueOf(parser.group(index++)) / 60;
+            if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
+            position.setLatitude(latitude);
+
+            // Longitude
+            Double lonlitude = Double.valueOf(parser.group(index++));
+            lonlitude += Double.valueOf(parser.group(index++)) / 60;
+            if (parser.group(index++).compareTo("W") == 0) lonlitude = -lonlitude;
+            position.setLongitude(lonlitude);
+
+            // Speed
+            position.setSpeed(Double.valueOf(parser.group(index++)));
+
+            // Course
+            position.setCourse(Double.valueOf(parser.group(index++)));
+
+            // Altitude
+            position.setAltitude(Double.valueOf(parser.group(index++)));
+            
+            // Satellites
+            int satellites = Integer.valueOf(parser.group(index++));
+            position.setValid(satellites >= 3);
+            extendedInfo.append("<satellites>");
+            extendedInfo.append(satellites);
+            extendedInfo.append("</satellites>");
+            
+            // Extended info
+            position.setExtendedInfo(extendedInfo.toString());
+
+            // Send response
+            sendResponse(channel, "#AD#", 1);
+
+            return position;
+        }
+
+        return null;
+    }
+
+}