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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.Date;
import java.util.List;
import java.util.Map;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelFutureListener;
import org.jboss.netty.channel.ChannelHandlerContext;
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.ServerManager;
import org.traccar.helper.Log;
import org.traccar.model.ExtendedInfoFormatter;
import org.traccar.model.Position;
public class OsmAndProtocolDecoder extends BaseProtocolDecoder {
public OsmAndProtocolDecoder(ServerManager serverManager) {
super(serverManager);
}
@Override
protected Object decode(
ChannelHandlerContext ctx, Channel channel, Object msg)
throws Exception {
HttpRequest request = (HttpRequest) msg;
QueryStringDecoder decoder = new QueryStringDecoder(request.getUri());
Map<String, List<String>> params = decoder.getParameters();
// Create new position
Position position = new Position();
ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter("osmand");
// Identification
String id = params.get(params.containsKey("id") ? "id" : "deviceid").get(0);
try {
position.setDeviceId(getDataManager().getDeviceByImei(id).getId());
} catch(Exception error) {
Log.warning("Unknown device - " + id);
}
// Decode position
position.setValid(true);
if (params.containsKey("timestamp")) {
position.setTime(new Date(Long.valueOf(params.get("timestamp").get(0)) * 1000));
} else {
position.setTime(new Date());
}
position.setLatitude(Double.valueOf(params.get("lat").get(0)));
position.setLongitude(Double.valueOf(params.get("lon").get(0)));
// Optional parameters
if (params.containsKey("speed")) {
position.setSpeed(Double.valueOf(params.get("speed").get(0)));
} else {
position.setSpeed(0.0);
}
if (params.containsKey("bearing")) {
position.setCourse(Double.valueOf(params.get("bearing").get(0)));
} else if (params.containsKey("heading")) {
position.setCourse(Double.valueOf(params.get("heading").get(0)));
} else {
position.setCourse(0.0);
}
if (params.containsKey("altitude")) {
position.setAltitude(Double.valueOf(params.get("altitude").get(0)));
} else {
position.setAltitude(0.0);
}
if (params.containsKey("hdop")) {
extendedInfo.set("hdop", params.get("hdop").get(0));
}
if (params.containsKey("vacc")) {
extendedInfo.set("vacc", params.get("vacc").get(0));
}
if (params.containsKey("hacc")) {
extendedInfo.set("hacc", params.get("hacc").get(0));
}
position.setExtendedInfo(extendedInfo.toString());
// Send response
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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