Start GlobalSat decoder

1 files changed, 178 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/GlobalSatProtocolDecoder.java b/src/org/traccar/protocol/GlobalSatProtocolDecoder.java
new file mode 100644
index 000000000..f4aa94110
--- /dev/null
+++ b/src/org/traccar/protocol/GlobalSatProtocolDecoder.java
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+/*
+ * 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.sql.ResultSet;
+import java.util.Calendar;
+import java.util.Properties;
+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.AdvancedConnection;
+import org.traccar.helper.Log;
+import org.traccar.helper.NamedParameterStatement;
+import org.traccar.model.Position;
+
+public class GlobalSatProtocolDecoder extends BaseProtocolDecoder {
+
+    private String format0;
+    private String format1;
+
+    public GlobalSatProtocolDecoder(ServerManager serverManager) {
+        super(serverManager);
+
+        // Initialize format strings
+        Properties p = getServerManager().getProperties();
+        if (p.contains("globalsat.format0")) {
+            format0 = p.getProperty("globalsat.format0");
+        } else {
+            format0 = "TSPRXAB27GHKLMnaicz*U!";
+        }
+        if (p.contains("globalsat.format1")) {
+            format1 = p.getProperty("globalsat.format1");
+        } else {
+            format1 = "SARY*U!";
+        }
+    }
+
+    /**
+     * Regular expressions pattern
+     */
+    /*static private Pattern pattern = Pattern.compile(
+            "\\$GPRMC," +
+            "(\\d{2})(\\d{2})(\\d{2})\\.(\\d+)," + // Time (HHMMSS.SSS)
+            "([AV])," +                    // Validity
+            "(\\d{2})(\\d{2}\\.\\d+)," +   // Latitude (DDMM.MMMM)
+            "([NS])," +
+            "(\\d{3})(\\d{2}\\.\\d+)," +   // Longitude (DDDMM.MMMM)
+            "([EW])," +
+            "(\\d+\\.?\\d*)?," +           // Speed
+            "(\\d+\\.?\\d*)?," +           // Course
+            "(\\d{2})(\\d{2})(\\d{2})" +   // Date (DDMMYY)
+            ".+");                         // Other (Checksumm)*/
+
+    // TODO: Acknowledgement
+    
+    @Override
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, Object msg)
+            throws Exception {
+
+        String sentence = (String) msg;
+
+        // Message type
+        String format;
+        if (sentence.startsWith("GSr")) {
+            format = format0;
+        } else if (sentence.startsWith("GSh")) {
+            format = format1;
+        } else {
+            return null;
+        }
+
+        // TODO: check that message contains required parameters
+        
+        
+
+        // Detect device ID
+        /*if (sentence.contains("$PGID")) {
+            String imei = sentence.substring(6, sentence.length() - 3);
+            try {
+                deviceId = getDataManager().getDeviceByImei(imei).getId();
+            } catch(Exception error) {
+                Log.warning("Unknown device - " + imei);
+            }
+        }
+
+        // Parse message
+        else if (sentence.contains("$GPRMC") && deviceId != null) {
+
+            // Send response
+            if (channel != null) {
+                channel.write("OK1\r\n");
+            }
+
+            // Parse message
+            Matcher parser = pattern.matcher(sentence);
+            if (!parser.matches()) {
+                return null;
+            }
+
+            // Create new position
+            Position position = new Position();
+            position.setDeviceId(deviceId);
+
+            Integer index = 1;
+
+            // 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++)));
+            index += 1; // Skip milliseconds
+
+            // 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);
+
+            // Speed
+            String speed = parser.group(index++);
+            if (speed != null) {
+                position.setSpeed(Double.valueOf(speed));
+            } else {
+                position.setSpeed(0.0);
+            }
+
+            // Course
+            String course = parser.group(index++);
+            if (course != null) {
+                position.setCourse(Double.valueOf(course));
+            } else {
+                position.setCourse(0.0);
+            }
+
+            // 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());
+
+            // Altitude
+            position.setAltitude(0.0);
+
+            return position;
+        }*/
+
+        return null;
+    }
+
+}