From 8f62b5da5664ef4294387763d328df92784b50e4 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sun, 1 Jun 2014 20:37:44 +1200
Subject: Implement Box protocol

---
 src/org/traccar/protocol/BoxProtocolDecoder.java | 122 +++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 src/org/traccar/protocol/BoxProtocolDecoder.java

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

diff --git a/src/org/traccar/protocol/BoxProtocolDecoder.java b/src/org/traccar/protocol/BoxProtocolDecoder.java
new file mode 100644
index 000000000..239b0aac5
--- /dev/null
+++ b/src/org/traccar/protocol/BoxProtocolDecoder.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2014 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 BoxProtocolDecoder extends BaseProtocolDecoder {
+    
+    private Long deviceId;
+
+    public BoxProtocolDecoder(ServerManager serverManager) {
+        super(serverManager);
+    }
+
+    private static final Pattern pattern = Pattern.compile(
+            "L," +
+            "(\\d{2})(\\d{2})(\\d{2})" +  // Date
+            "(\\d{2})(\\d{2})(\\d{2})," + // Time
+            "G," +
+            "(-?\\d+\\.\\d+)," +          // Latitude
+            "(-?\\d+\\.\\d+)," +          // Longitude
+            "(\\d+\\.?\\d*)," +           // Speed
+            "(\\d+\\.?\\d*)," +           // Course
+            "(\\d+)," +                   // Distance
+            "(\\d+)," +                   // Event
+            "(\\d+)" +                    // Status
+            ".*");
+
+    @Override
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        String sentence = (String) msg;
+        
+        if (sentence.startsWith("H,")) {
+            
+            int index = sentence.indexOf(',', 2) + 1;
+            String id = sentence.substring(index, sentence.indexOf(',', index));
+
+            try {
+                deviceId = getDataManager().getDeviceByImei(id).getId();
+            } catch(Exception error) {
+                Log.warning("Unknown device - " + id);
+            }
+        }
+        
+        else if (sentence.startsWith("L,")) {
+
+            // Parse message
+            Matcher parser = pattern.matcher(sentence);
+            if (!parser.matches()) {
+                return null;
+            }
+
+            // Create new position
+            Position position = new Position();
+            position.setDeviceId(deviceId);
+            ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter("box");
+
+            Integer index = 1;
+
+            // Time
+            Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+            time.clear();
+            time.set(Calendar.YEAR, 2000 + 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_OF_DAY, 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());
+
+            // Location
+            position.setLatitude(Double.valueOf(parser.group(index++)));
+            position.setLongitude(Double.valueOf(parser.group(index++)));
+            position.setSpeed(Double.valueOf(parser.group(index++)));
+            position.setCourse(Double.valueOf(parser.group(index++)));
+            position.setAltitude(0.0);
+            
+            // Distance
+            extendedInfo.set("milage", parser.group(index++));
+            
+            // Event
+            extendedInfo.set("event", parser.group(index++));
+            
+            // Status
+            int status = Integer.valueOf(parser.group(index++));
+            position.setValid((status & 0x04) == 0);
+            extendedInfo.set("status", status);
+
+            position.setExtendedInfo(extendedInfo.toString());
+            return position;
+        }
+        
+        return null;
+    }
+
+}
-- 
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