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/*
* Copyright 2015 - 2018 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;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.traccar.geolocation.GeolocationProvider;
import org.traccar.model.Position;
@ChannelHandler.Sharable
public class GeolocationHandler extends ChannelInboundHandlerAdapter {
private static final Logger LOGGER = LoggerFactory.getLogger(GeolocationHandler.class);
private final GeolocationProvider geolocationProvider;
private final boolean processInvalidPositions;
public GeolocationHandler(GeolocationProvider geolocationProvider, boolean processInvalidPositions) {
this.geolocationProvider = geolocationProvider;
this.processInvalidPositions = processInvalidPositions;
}
@Override
public void channelRead(final ChannelHandlerContext ctx, Object message) throws Exception {
if (message instanceof Position) {
final Position position = (Position) message;
if ((position.getOutdated() || processInvalidPositions && !position.getValid())
&& position.getNetwork() != null) {
Context.getStatisticsManager().registerGeolocationRequest();
geolocationProvider.getLocation(position.getNetwork(),
new GeolocationProvider.LocationProviderCallback() {
@Override
public void onSuccess(double latitude, double longitude, double accuracy) {
position.set(Position.KEY_APPROXIMATE, true);
position.setValid(true);
position.setFixTime(position.getDeviceTime());
position.setLatitude(latitude);
position.setLongitude(longitude);
position.setAccuracy(accuracy);
position.setAltitude(0);
position.setSpeed(0);
position.setCourse(0);
position.set(Position.KEY_RSSI, 0);
ctx.fireChannelRead(position);
}
@Override
public void onFailure(Throwable e) {
LOGGER.warn(null, e);
ctx.fireChannelRead(position);
}
});
} else {
ctx.fireChannelRead(position);
}
} else {
ctx.fireChannelRead(message);
}
}
}
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