From 5060907d594f54287e9cbd402c1d8804151fcede Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sun, 4 Aug 2013 21:02:29 +1200
Subject: Created new Suntech decoder (fix #345)

---
 .../traccar/protocol/SuntechProtocolDecoder.java   | 114 +++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 src/org/traccar/protocol/SuntechProtocolDecoder.java

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

diff --git a/src/org/traccar/protocol/SuntechProtocolDecoder.java b/src/org/traccar/protocol/SuntechProtocolDecoder.java
new file mode 100644
index 000000000..bd7b882cd
--- /dev/null
+++ b/src/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -0,0 +1,114 @@
+/*
+ * 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.ExtendedInfoFormatter;
+import org.traccar.model.Position;
+
+public class SuntechProtocolDecoder extends BaseProtocolDecoder {
+
+    public SuntechProtocolDecoder(ServerManager serverManager) {
+        super(serverManager);
+    }
+
+    static private Pattern pattern = Pattern.compile(
+            "S.\\d{3}(?:\\w{3})?;" +       // Header
+            "(?:[^;]+;)?" +
+            "(\\d{6});" +                  // Device ID
+            "(\\d+);" +                    // Version
+            "(\\d{4})(\\d{2})(\\d{2});" +  // Date (YYYYMMDD)
+            "(\\d{2}):(\\d{2}):(\\d{2});" + // Time (HH:MM:SS)
+            "(?:(\\p{XDigit}+);)?" +       // Cell
+            "([-\\+]\\d{2}.\\d+);" +       // Latitude
+            "([-\\+]\\d{3}.\\d+);" +       // Longitude
+            "(\\d{3}.\\d{3});" +           // Speed
+            "(\\d{3}.\\d{2});" +           // Course
+            ".*");                         // Full format
+
+    @Override
+    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();
+        ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter("suntech");
+        int index = 1;
+
+        // Identifier
+        String imei = parser.group(index++);
+        try {
+            position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
+        } catch(Exception error) {
+            Log.warning("Unknown device - " + imei);
+            return null;
+        }
+        
+        // Version
+        extendedInfo.set("version", parser.group(index++));
+
+        // Date and Time
+        Calendar time = Calendar.getInstance(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.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());
+        
+        // Cell
+        extendedInfo.set("cell", parser.group(index++));
+
+        // Coordinates
+        position.setLatitude(Double.valueOf(parser.group(index++)));
+        position.setLongitude(Double.valueOf(parser.group(index++)));
+        position.setValid(true); // wrong?
+
+        // Speed
+        position.setSpeed(Double.valueOf(parser.group(index++)) * 0.539957);
+
+        // Course
+        position.setCourse(Double.valueOf(parser.group(index++)));
+
+        // Altitude
+        position.setAltitude(0.0);
+
+        // Extended info
+        position.setExtendedInfo(extendedInfo.toString());
+
+        return position;
+    }
+
+}
-- 
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