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authorAnton Tananaev <anton.tananaev@gmail.com>2014-06-02 22:39:48 +1200
committerAnton Tananaev <anton.tananaev@gmail.com>2014-06-02 22:39:48 +1200
commit6ac5e8cef0be902b7067c6d9c4b30c4740d3dffd (patch)
tree135c3ab138f2d0762aafeec1be6c2bb32a47aad4 /src/org/traccar/protocol/FreedomProtocolDecoder.java
parent8f62b5da5664ef4294387763d328df92784b50e4 (diff)
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Implement Freedom protocol
Diffstat (limited to 'src/org/traccar/protocol/FreedomProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/FreedomProtocolDecoder.java112
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diff --git a/src/org/traccar/protocol/FreedomProtocolDecoder.java b/src/org/traccar/protocol/FreedomProtocolDecoder.java
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+/*
+ * 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 FreedomProtocolDecoder extends BaseProtocolDecoder {
+
+ public FreedomProtocolDecoder(ServerManager serverManager) {
+ super(serverManager);
+ }
+
+ private static final Pattern pattern = Pattern.compile(
+ "IMEI," +
+ "(\\d+)," + // IMEI
+ "(\\d{4}).(\\d{2}).(\\d{2}), " + // Date
+ "(\\d{2}):(\\d{2}):(\\d{2}), " + // Time
+ "([NS]), Lat:(\\d{2})(\\d+.\\d+), " + // Latitude
+ "([EW]), Lon:(\\d{3})(\\d+.\\d+), " + // Longitude
+ "Spd:(\\d+.\\d+)" + // Speed
+ ".*");
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, Object msg)
+ throws Exception {
+
+ // Parse message
+ Matcher parser = pattern.matcher((String) msg);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ // Create new position
+ Position position = new Position();
+ ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter("freedom");
+ Integer index = 1;
+
+ // Identification
+ String imei = parser.group(index++);
+ try {
+ position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
+ } catch(Exception error) {
+ Log.warning("Unknown device - " + imei);
+ return null;
+ }
+
+ // Validity
+ position.setValid(true);
+
+ // 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_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());
+
+ // Latitude
+ String hemisphere = parser.group(index++);
+ Double latitude = Double.valueOf(parser.group(index++));
+ latitude += Double.valueOf(parser.group(index++)) / 60;
+ 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++)) / 60;
+ if (hemisphere.compareTo("W") == 0) longitude = -longitude;
+ position.setLongitude(longitude);
+
+ // Altitude
+ position.setAltitude(0.0);
+
+ // Speed
+ position.setSpeed(Double.valueOf(parser.group(index++)));
+
+ // Course
+ position.setCourse(0.0);
+
+ position.setExtendedInfo(extendedInfo.toString());
+ return position;
+ }
+
+}