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/*
* Copyright 2014 - 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.regex.Pattern;
import org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.helper.BitUtil;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Event;
import org.traccar.model.Position;
public class HaicomProtocolDecoder extends BaseProtocolDecoder {
public HaicomProtocolDecoder(HaicomProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("$GPRS")
.number("(d+),") // IMEI
.expression("([^,]+),") // Version
.number("(dd)(dd)(dd),") // Date
.number("(dd)(dd)(dd),") // Time
.number("(d)") // Flags
.number("(dd)(d{5})") // Latitude (DDMMMMM)
.number("(ddd)(d{5}),") // Longitude (DDDMMMMM)
.number("(d+),") // Speed
.number("(d+),") // Course
.number("(d+),") // Status
.number("(d+)?,") // GPRS counting value
.number("(d+)?,") // GPS power saving counting value
.number("(d+),") // Switch status
.number("(d+)") // Relay status
.expression("(?:[LH]{2})?") // Power status
.number("#V(d+)") // Battery
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
Parser parser = new Parser(PATTERN, (String) msg);
if (!parser.matches()) {
return null;
}
Position position = new Position();
position.setProtocol(getProtocolName());
if (!identify(parser.next(), channel)) {
return null;
}
position.setDeviceId(getDeviceId());
position.set(Event.KEY_VERSION, parser.next());
DateBuilder dateBuilder = new DateBuilder()
.setDate(parser.nextInt(), parser.nextInt(), parser.nextInt())
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
int flags = parser.nextInt();
position.setValid(BitUtil.check(flags, 0));
double latitude = parser.nextDouble() + parser.nextDouble() / 60000;
if (BitUtil.check(flags, 2)) {
position.setLatitude(latitude);
} else {
position.setLatitude(-latitude);
}
double longitude = parser.nextDouble() + parser.nextDouble() / 60000;
if (BitUtil.check(flags, 1)) {
position.setLongitude(longitude);
} else {
position.setLongitude(-longitude);
}
position.setSpeed(parser.nextDouble() / 10);
position.setCourse(parser.nextDouble() / 10);
position.set(Event.KEY_STATUS, parser.next());
position.set(Event.KEY_GSM, parser.next());
position.set(Event.KEY_GPS, parser.next());
position.set(Event.KEY_INPUT, parser.next());
position.set(Event.KEY_OUTPUT, parser.next());
position.set(Event.KEY_BATTERY, parser.nextDouble() / 10);
return position;
}
}
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