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author | Alex Wilson <alex@uq.edu.au> | 2012-08-17 15:12:34 +1000 |
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committer | Alex Wilson <alex@uq.edu.au> | 2012-08-17 15:12:34 +1000 |
commit | 2778c38fbaf71727e4cd5cfa5c2a386f8bbf1cfb (patch) | |
tree | 3d7cd47fa6ce2efe5f7380e5e034c79644aa738f /src/org/traccar/protocol/MaxonProtocolDecoder.java | |
parent | ce0bc3fe3087e6be439ca874d61b056006001029 (diff) | |
download | traccar-server-2778c38fbaf71727e4cd5cfa5c2a386f8bbf1cfb.tar.gz traccar-server-2778c38fbaf71727e4cd5cfa5c2a386f8bbf1cfb.tar.bz2 traccar-server-2778c38fbaf71727e4cd5cfa5c2a386f8bbf1cfb.zip |
Add new MaxonProtocolDecoder class
Diffstat (limited to 'src/org/traccar/protocol/MaxonProtocolDecoder.java')
-rw-r--r-- | src/org/traccar/protocol/MaxonProtocolDecoder.java | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/MaxonProtocolDecoder.java b/src/org/traccar/protocol/MaxonProtocolDecoder.java new file mode 100644 index 000000000..7e26c9c19 --- /dev/null +++ b/src/org/traccar/protocol/MaxonProtocolDecoder.java @@ -0,0 +1,154 @@ +/* + * Copyright 2012 Alex Wilson <alex@uq.edu.au> + * + * 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.GenericProtocolDecoder; +import org.traccar.model.DataManager; +import org.traccar.model.Position; + +/** + * Maxon Datamax GPS send protocol (NMEA + GPFID) + * As seen in the MA100-1010 router + * + * It sends its identity after the GPRMC sentence, and with the type + * GPFID. + */ +public class MaxonProtocolDecoder extends GenericProtocolDecoder { + + /** + * Device ID + */ + private Position position = null; + + /** + * Initialize + */ + public MaxonProtocolDecoder(DataManager dataManager, Integer resetDelay) { + super(dataManager, resetDelay); + } + + /** + * Regular expressions pattern + */ + static private Pattern pattern = Pattern.compile( + "\\$GPRMC," + + "(\\d{2})(\\d{2})(\\d{2}).(\\d{2})," + // Time (HHMMSS.SSS) + "([AV])," + // Validity + "(\\d{2})(\\d{2}.\\d{5})," + // Latitude (DDMM.MMMMM) + "([NS])," + + "(\\d{3})(\\d{2}.\\d{5})," + // Longitude (DDDMM.MMMMM) + "([EW])," + + "(\\d+.\\d{3})?," + // Speed + "(\\d+.\\d{2})?," + // Course + "(\\d{2})(\\d{2})(\\d{2})" + // Date (DDMMYY) + ".+"); // Other (Checksumm) + + static private Pattern gpfidPattern = Pattern.compile( + "\\$GPFID,(\\d+)$" + ); + + /** + * Decode message" + */ + protected Object decode( + ChannelHandlerContext ctx, Channel channel, Object msg) + throws Exception { + + String sentence = (String) msg; + + // Detect device ID + // Parse message + if (sentence.contains("$GPRMC")) { + + // Parse message + Matcher parser = pattern.matcher(sentence); + if (!parser.matches()) { + return null; + } + + // Create new position + position = new Position(); + + 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); + + } else if (sentence.contains("$GPFID") && position != null) { + Matcher parser = gpfidPattern.matcher(sentence); + + if (parser.matches()) { + String imei = parser.group(1); + position.setDeviceId(getDataManager().getDeviceByImei(imei).getId()); + return position; + } + } + + return null; + } + +} |