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/*
* Copyright 2015 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.net.SocketAddress;
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.traccar.BaseProtocolDecoder;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Event;
import org.traccar.model.Position;
public class AquilaProtocolDecoder extends BaseProtocolDecoder {
public AquilaProtocolDecoder(AquilaProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = Pattern.compile(
"\\$\\$" +
"[^,]+," + // Client
"(\\d+)," + // Device serial number
"(\\d+)," + // Event
"(-?\\d+\\.\\d+)," + // Latitude
"(-?\\d+\\.\\d+)," + // Longitude
"(\\d{2})(\\d{2})(\\d{2})" + // Date (YYMMDD)
"(\\d{2})(\\d{2})(\\d{2})," + // Time (HHMMSS)
"([AV])," + // Validity
"(\\d+)," + // GSM
"(\\d+)," + // Speed
"(\\d+)," + // Distance
"\\d+," + // Driver code
"(\\d+)," + // Fuel
"([01])," + // IO 1
"[01]," + // Case open switch
"[01]," + // Over speed start
"[01]," + // Over speed end
"(?:\\d+,){3}" + // Reserved
"([01])," + // Power status
"([01])," + // IO 2
"\\d+," + // Reserved
"([01])," + // Ignition
"[01]," + // Ignition off event
"(?:\\d+,){7}" + // Reserved
"[01]," + // Corner packet
"(?:\\d+,){8}" + // Reserved
"([01])," + // Course bit 0
"([01])," + // Course bit 1
"([01])," + // Course bit 2
"([01])," + // Course bit 3
"\\*(\\p{XDigit}{2})"); // Checksum
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg)
throws Exception {
String sentence = (String) msg;
Matcher parser = PATTERN.matcher(sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position();
position.setProtocol(getProtocolName());
Integer index = 1;
String id = parser.group(index++);
if (!identify(id, channel)) {
return null;
}
position.setDeviceId(getDeviceId());
position.set(Event.KEY_EVENT, Integer.parseInt(parser.group(index++)));
position.setLatitude(Double.parseDouble(parser.group(index++)));
position.setLongitude(Double.parseDouble(parser.group(index++)));
Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
time.clear();
time.set(Calendar.YEAR, 2000 + Integer.parseInt(parser.group(index++)));
time.set(Calendar.MONTH, Integer.parseInt(parser.group(index++)) - 1);
time.set(Calendar.DAY_OF_MONTH, Integer.parseInt(parser.group(index++)));
time.set(Calendar.HOUR_OF_DAY, Integer.parseInt(parser.group(index++)));
time.set(Calendar.MINUTE, Integer.parseInt(parser.group(index++)));
time.set(Calendar.SECOND, Integer.parseInt(parser.group(index++)));
position.setTime(time.getTime());
position.setValid(parser.group(index++).equals("A"));
position.set(Event.KEY_GSM, Integer.parseInt(parser.group(index++)));
position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(parser.group(index++))));
position.set(Event.KEY_ODOMETER, parser.group(index++));
position.set(Event.KEY_FUEL, parser.group(index++));
position.set(Event.PREFIX_IO + 1, parser.group(index++));
position.set(Event.KEY_CHARGE, parser.group(index++));
position.set(Event.PREFIX_IO + 2, parser.group(index++));
position.set(Event.KEY_IGNITION, parser.group(index++).equals("1"));
int course =
(Integer.parseInt(parser.group(index++)) << 3) +
(Integer.parseInt(parser.group(index++)) << 2) +
(Integer.parseInt(parser.group(index++)) << 1) +
(Integer.parseInt(parser.group(index++)));
if (course > 0 && course <= 8) {
position.setCourse((course - 1) * 45);
}
return position;
}
}
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