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/*
* Copyright 2015 Anton Tananaev (anton@traccar.org)
*
* 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 org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelFutureListener;
import org.jboss.netty.handler.codec.http.DefaultHttpResponse;
import org.jboss.netty.handler.codec.http.HttpRequest;
import org.jboss.netty.handler.codec.http.HttpResponse;
import org.jboss.netty.handler.codec.http.HttpResponseStatus;
import org.jboss.netty.handler.codec.http.HttpVersion;
import org.jboss.netty.handler.codec.http.QueryStringDecoder;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.util.regex.Pattern;
public class PathAwayProtocolDecoder extends BaseProtocolDecoder {
public PathAwayProtocolDecoder(PathAwayProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("$PWS,")
.number("d+,") // version
.expression("[^,]*,") // name
.expression("[^,]*,") // icon
.expression("[^,]*,") // color
.number("(dd)(dd)(dd),") // date (ddmmyy)
.number("(dd)(dd)(dd),") // time (hhmmss)
.number("(-?d+.d+),") // latitude
.number("(-?d+.d+),") // longitude
.number("(-?d+.?d*),") // altitude
.number("(-?d+.?d*),") // speed
.number("(-?d+.?d*),") // course
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
HttpRequest request = (HttpRequest) msg;
QueryStringDecoder decoder = new QueryStringDecoder(request.getUri());
DeviceSession deviceSession = getDeviceSession(
channel, remoteAddress, decoder.getParameters().get("UserName").get(0));
if (deviceSession == null) {
return null;
}
Parser parser = new Parser(PATTERN, decoder.getParameters().get("LOC").get(0));
if (!parser.matches()) {
return null;
}
Position position = new Position();
position.setProtocol(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY2_HMS));
position.setValid(true);
position.setLatitude(parser.nextDouble());
position.setLongitude(parser.nextDouble());
position.setAltitude(parser.nextDouble());
position.setSpeed(parser.nextDouble());
position.setCourse(parser.nextDouble());
if (channel != null) {
HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
channel.write(response).addListener(ChannelFutureListener.CLOSE);
}
return position;
}
}
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