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authorAnton Tananaev <anton.tananaev@gmail.com>2013-02-13 20:41:08 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2013-02-13 20:41:08 +1300
commit82965326887d0867f8edf29e638630c2ee85423c (patch)
treeb9b85b2ceadff02bc4b2ee6b5fe4de76ec486f08 /src/org/traccar/protocol/SyrusProtocolDecoder.java
parent6271b433cdada9b94b93db7f30bf8f8d7efe4b52 (diff)
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Added Syrus protocol (fix #133)
Diffstat (limited to 'src/org/traccar/protocol/SyrusProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/SyrusProtocolDecoder.java148
1 files changed, 148 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/SyrusProtocolDecoder.java b/src/org/traccar/protocol/SyrusProtocolDecoder.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.util.Calendar;
+import java.util.Date;
+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.Position;
+
+public class SyrusProtocolDecoder extends BaseProtocolDecoder {
+
+ public SyrusProtocolDecoder(ServerManager serverManager) {
+ super(serverManager);
+ }
+
+ /**
+ * Regular expressions pattern
+ */
+ //"REV691615354941+3570173+1397742703203212;ID=Test"
+ static private Pattern pattern = Pattern.compile(
+ "REV" + // Type
+ "\\d{2}" + // Event index
+ "(\\d{4})" + // Week
+ "(\\d)" + // Day
+ "(\\d{5})" + // Seconds
+ "([\\+\\-]\\d{2})(\\d{5})" + // Latitude
+ "([\\+\\-]\\d{3})(\\d{5})" + // Longitude
+ "(\\d{3})" + // Speed
+ "(\\d{3})" + // Course
+ "\\d" + // Fix mode
+ "(\\d)" + // Fix age
+ ".*");
+
+ private Date getTime(long week, long day, long seconds) {
+ Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+ time.clear();
+ time.set(Calendar.YEAR, 1980);
+ time.set(Calendar.MONTH, 0);
+ time.set(Calendar.DAY_OF_MONTH, 6);
+
+ long millis = time.getTimeInMillis();
+ millis += ((week * 7 + day) * 24 * 60 * 60 + seconds) * 1000;
+
+ return new Date(millis);
+ }
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, Object msg)
+ throws Exception {
+
+ String sentence = (String) msg;
+
+ // Find message start
+ int beginIndex = sentence.indexOf('>');
+ if (beginIndex != -1) {
+ sentence = sentence.substring(beginIndex + 1);
+ }
+
+ // Find device ID
+ Long deviceId = null;
+ beginIndex = sentence.indexOf(";ID=");
+ if (beginIndex != -1) {
+ beginIndex += 4;
+ int endIndex = sentence.indexOf(';', beginIndex);
+ if (endIndex == -1) {
+ endIndex = sentence.length();
+ }
+
+ // Find device in database
+ String id = sentence.substring(beginIndex, endIndex);
+ try {
+ deviceId = getDataManager().getDeviceByImei(id).getId();
+ } catch(Exception error) {
+ Log.warning("Unknown device - " + id);
+ return null;
+ }
+
+ // Send response
+ if (channel != null) {
+ channel.write(id);
+ }
+ }
+
+ // Parse message
+ Matcher parser = pattern.matcher(sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ // Create new position
+ Position position = new Position();
+ StringBuilder extendedInfo = new StringBuilder("<protocol>syrus</protocol>");
+ position.setDeviceId(deviceId);
+
+ Integer index = 1;
+
+ // Time
+ int week = Integer.valueOf(parser.group(index++));
+ int day = Integer.valueOf(parser.group(index++));
+ int seconds = Integer.valueOf(parser.group(index++));
+ position.setTime(getTime(week, day, seconds));
+
+ // Latitude
+ String latitude = parser.group(index) + '.' + parser.group(index + 1);
+ index += 2;
+ position.setLatitude(Double.valueOf(latitude));
+
+ // Latitude
+ String longitude = parser.group(index) + '.' + parser.group(index + 1);
+ index += 2;
+ position.setLongitude(Double.valueOf(longitude));
+
+ // Altitude
+ position.setAltitude(0.0);
+
+ // Speed and Course
+ position.setSpeed(Double.valueOf(parser.group(index++)) * 0.868976);
+ position.setCourse(Double.valueOf(parser.group(index++)));
+
+ // Validity
+ position.setValid(Integer.valueOf(parser.group(index++)) == 2);
+
+ position.setExtendedInfo(extendedInfo.toString());
+ return position;
+ }
+
+}