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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.Position;
public class WondexProtocolDecoder extends BaseProtocolDecoder {
public WondexProtocolDecoder(ServerManager serverManager) {
super(serverManager);
}
/**
* Regular expressions pattern
*/
static private Pattern pattern = Pattern.compile(
"[^\\d]*" + // Header
"(\\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+)," + // Speed
"(\\d+)," + // Course
"(\\d+)," + // Altitude
"(\\d+)," + // Satellites
"(\\d+),?" + // Event
"(\\d+\\.\\d+)?,?" + // Milage
"(\\d+)?,?" + // Input
"(\\d+\\.\\d+)?,?" + // ADC1
"(\\d+\\.\\d+)?,?" + // ADC2
"(\\d+)?"); // Output
@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();
StringBuilder extendedInfo = new StringBuilder("<protocol>wondex</protocol>");
int index = 1;
// Device identifier
String id = parser.group(index++);
try {
position.setDeviceId(getDataManager().getDeviceByImei(id).getId());
} catch(Exception error) {
Log.warning("Unknown device - " + id);
return null;
}
// 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());
// Position data
position.setLongitude(Double.valueOf(parser.group(index++)));
position.setLatitude(Double.valueOf(parser.group(index++)));
position.setSpeed(Double.valueOf(parser.group(index++)) * 0.539957);
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.append("<satellites>").append(satellites).append("</satellites>");
// Event
extendedInfo.append("<event>");
extendedInfo.append(parser.group(index++));
extendedInfo.append("</event>");
// Milage
String milage = parser.group(index++);
if (milage != null) {
extendedInfo.append("<milage>").append(milage).append("</milage>");
}
// Input
String input = parser.group(index++);
if (input != null) {
extendedInfo.append("<input>").append(input).append("</input>");
}
// ADC
String adc1 = parser.group(index++);
if (adc1 != null) {
extendedInfo.append("<adc1>").append(adc1).append("</adc1>");
}
String adc2 = parser.group(index++);
if (adc2 != null) {
extendedInfo.append("<adc2>").append(adc2).append("</adc2>");
}
// Output
String output = parser.group(index++);
if (output != null) {
extendedInfo.append("<output>").append(output).append("</output>");
}
position.setExtendedInfo(extendedInfo.toString());
return position;
}
}
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