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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.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 IntellitracProtocolDecoder extends BaseProtocolDecoder {
public IntellitracProtocolDecoder(ServerManager serverManager) {
super(serverManager);
}
static private Pattern pattern = Pattern.compile(
"(?:.+,)?(\\d+)," + // Device Identifier
"(\\d{4})(\\d{2})(\\d{2})" + // Date (YYYYMMDD)
"(\\d{2})(\\d{2})(\\d{2})," + // Time (HHMMSS)
"(-?\\d+\\.\\d+)," + // Longitude
"(-?\\d+\\.\\d+)," + // Latitude
"(\\d+\\.?\\d*)," + // Speed
"(\\d+\\.?\\d*)," + // Course
"(\\d+\\.?\\d*)," + // Altitude
"(\\d+)," + // Satellites
"(\\d+)," + // Report Identifier
"(\\d+)," + // Input
"(\\d+),?" + // Output
"(\\d+\\.\\d+)?,?" + // ADC1
"(\\d+\\.\\d+)?"); // ADC2
@Override
protected Object decode(
ChannelHandlerContext ctx, Channel channel, 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();
ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter("intellitrac");
Integer index = 1;
// Detect device
String id = parser.group(index++);
try {
position.setDeviceId(getDataManager().getDeviceByImei(id).getId());
} catch(Exception error) {
Log.warning("Unknown device - " + id);
return null;
}
// Date and 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, 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());
// Location data
position.setLongitude(Double.valueOf(parser.group(index++)));
position.setLatitude(Double.valueOf(parser.group(index++)));
position.setSpeed(Double.valueOf(parser.group(index++)));
position.setCourse(Double.valueOf(parser.group(index++)));
position.setAltitude(Double.valueOf(parser.group(index++)));
// Satellites
int satellites = Integer.valueOf(parser.group(index++));
position.setValid(satellites >= 3);
extendedInfo.set("satellites", satellites);
// Report identifier
extendedInfo.set("index", Long.valueOf(parser.group(index++)));
// Input
extendedInfo.set("input", parser.group(index++));
// Output
extendedInfo.set("output", parser.group(index++));
// ADC1
String adc1 = parser.group(index++);
if (adc1 != null) {
extendedInfo.set("adc1", adc1);
}
// ADC2
String adc2 = parser.group(index++);
if (adc2 != null) {
extendedInfo.set("adc2", adc2);
}
position.setExtendedInfo(extendedInfo.toString());
return position;
}
}
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