Implement GPS Maker protocol

1 files changed, 136 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/GpsMarkerProtocolDecoder.java b/src/org/traccar/protocol/GpsMarkerProtocolDecoder.java
new file mode 100644
index 000000000..0c1bba84c
--- /dev/null
+++ b/src/org/traccar/protocol/GpsMarkerProtocolDecoder.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2015 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 org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.Calendar;
+import java.util.TimeZone;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class GpsMarkerProtocolDecoder extends BaseProtocolDecoder {
+
+    public GpsMarkerProtocolDecoder(GpsMarkerProtocol protocol) {
+        super(protocol);
+    }
+
+    //                         DDMMYYHHMM    GGMMmmmm  GGGMMmmmm
+    //$GM 1   350123456789012 T1005111233   N55516789 E037561234 000 000 3 52 00298
+    //$GM 203 863071014445404 T150715202258 N55481576 E037292753 000 000 4 05 30301
+    private static final Pattern pattern = Pattern.compile(
+            "\\$GM" +
+            "\\d+" +                            // Type
+            "(\\d{15})" +                       // IMEI
+            "T(\\d{2})(\\d{2})(\\d{2})" +       // Date
+            "(\\d{2})(\\d{2})(\\d{2})?" +       // Time
+            "([NS])" +
+            "(\\d{2})(\\d{2}\\d{4})" +          // Latitude
+            "([EW])" +
+            "(\\d{3})(\\d{2}\\d{4})" +          // Longitude
+            "(\\d{3})" +                        // Speed
+            "(\\d{3})" +                        // Course
+            "(\\d)" +                           // Satellites
+            "(\\d{2})" +                        // Battery
+            "(\\d)" +                           // Input
+            "(\\d)" +                           // Output
+            "(\\d{3})" +                        // Temperature
+            ".*");
+
+    private static final Pattern handshakePattern = Pattern.compile("##,imei:(\\d+),A");
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, 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();
+        position.setProtocol(getProtocolName());
+
+        Integer index = 1;
+
+        // Get device by IMEI
+        String imei = parser.group(index++);
+        if (!identify(imei, channel, remoteAddress)) {
+            return null;
+        }
+        position.setDeviceId(getDeviceId());
+
+        // 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_OF_DAY, Integer.valueOf(parser.group(index++)));
+        time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
+        String seconds = parser.group(index++);
+        if (seconds != null) {
+            time.set(Calendar.SECOND, Integer.valueOf(seconds));
+        }
+        position.setTime(time.getTime());
+
+        // Validity
+        position.setValid(true);
+
+        // Latitude
+        String hemisphere = parser.group(index++);
+        Double latitude = Double.valueOf(parser.group(index++));
+        latitude += Double.valueOf(parser.group(index++)) / 600000;
+        if (hemisphere.compareTo("S") == 0) {
+            latitude = -latitude;
+        }
+        position.setLatitude(latitude);
+
+        // Longitude
+        hemisphere = parser.group(index++);
+        Double longitude = Double.valueOf(parser.group(index++));
+        longitude += Double.valueOf(parser.group(index++)) / 600000;
+        if (hemisphere.compareTo("W") == 0) {
+            longitude = -longitude;
+        }
+        position.setLongitude(longitude);
+
+        // Speed
+        position.setSpeed(Double.valueOf(parser.group(index++)));
+
+        // Course
+        position.setCourse(Double.valueOf(parser.group(index++)));
+
+        // Additional data
+        position.set(Event.KEY_SATELLITES, parser.group(index++));
+        position.set(Event.KEY_BATTERY, parser.group(index++));
+        position.set(Event.KEY_INPUT, parser.group(index++));
+        position.set(Event.KEY_OUTPUT, parser.group(index++));
+        position.set(Event.PREFIX_TEMP + 1, parser.group(index++));
+
+        return position;
+    }
+
+}