From 8b4dc809a91bcd124ae087988aa79ceaeff1fd36 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sun, 4 Nov 2012 21:24:17 +1300
Subject: Release 1.4

---
 src/org/traccar/protocol/Pt502ProtocolDecoder.java | 130 +++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 src/org/traccar/protocol/Pt502ProtocolDecoder.java

(limited to 'src/org/traccar')

diff --git a/src/org/traccar/protocol/Pt502ProtocolDecoder.java b/src/org/traccar/protocol/Pt502ProtocolDecoder.java
new file mode 100644
index 000000000..a010f936f
--- /dev/null
+++ b/src/org/traccar/protocol/Pt502ProtocolDecoder.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2012 Anton Tananaev (anton.tananaev@gmail.com)
+ *                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.helper.Log;
+import org.traccar.model.DataManager;
+import org.traccar.model.Position;
+
+/**
+ * PT502 tracker protocol decoder
+ */
+public class Pt502ProtocolDecoder extends GenericProtocolDecoder {
+
+    /**
+     * Initialize
+     */
+    public Pt502ProtocolDecoder(DataManager dataManager) {
+        super(dataManager);
+    }
+    /**
+     * Regular expressions pattern
+     */
+    //$POS,6094,205523.000,A,1013.6223,N,06728.4248,W,0.0,99.3,011112,,,A/00000,00000/0/23895000//
+    static private Pattern pattern = Pattern.compile(
+            "\\$POS," +                         // Data Frame start
+            "(\\d+)," +                         // Id
+            "(\\d{2})(\\d{2})(\\d{2})\\.(\\d{3})," + // Time (HHMMSS.SSS)
+            "([AV])," +                         // Validity
+            "(\\d{2})(\\d{2}\\.\\d{4})," +      // Latitude (DDMM.MMMM)
+            "([NS])," +
+            "(\\d{3})(\\d{2}\\.\\d{4})," +      // Longitude (DDDMM.MMMM)
+            "([EW])," +
+            "(\\d+\\.\\d+)," +                  // Speed
+            "(\\d+\\.\\d+)," +                  // Course (or Distance???)
+            "(\\d{2})(\\d{2})(\\d{2})," +       // Date
+            ".*");
+
+    /*
+     * 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()) {
+            Log.getLogger().info("Parsing error");
+            return null;
+        }
+
+        // Create new position
+        Position position = new Position();
+        StringBuilder extendedInfo = new StringBuilder("<protocol>pt502</protocol>");
+
+        Integer index = 1;
+
+        // Get device by IMEI
+        String id = parser.group(index++);
+        position.setDeviceId(getDataManager().getDeviceByImei(id).getId());
+
+        // Time
+        Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+        time.clear();
+        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++)));
+        time.set(Calendar.MILLISECOND, Integer.valueOf(parser.group(index++)));
+
+        // Validity
+        position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false);
+
+        // 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);
+
+        // Altitude
+        position.setAltitude(0.0);
+
+        // Speed
+        position.setSpeed(Double.valueOf(parser.group(index++)));
+        position.setCourse(Double.valueOf(parser.group(index++)));
+
+        // Date
+        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++)));
+        position.setTime(time.getTime());
+
+        // Extended info
+        position.setExtendedInfo(extendedInfo.toString());
+
+        return position;
+    }
+}
-- 
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