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/*
* Copyright 2015 - 2016 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 org.jboss.netty.channel.ChannelEvent;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelUpstreamHandler;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.MessageEvent;
import org.traccar.location.LocationProvider;
import org.traccar.model.Position;
public class LocationProviderHandler implements ChannelUpstreamHandler {
private final LocationProvider locationProvider;
private final boolean processInvalidPositions;
public LocationProviderHandler(LocationProvider locationProvider, boolean processInvalidPositions) {
this.locationProvider = locationProvider;
this.processInvalidPositions = processInvalidPositions;
}
@Override
public void handleUpstream(final ChannelHandlerContext ctx, ChannelEvent evt) throws Exception {
if (!(evt instanceof MessageEvent)) {
ctx.sendUpstream(evt);
return;
}
final MessageEvent e = (MessageEvent) evt;
Object message = e.getMessage();
if (message instanceof Position) {
final Position position = (Position) message;
if (position.getOutdated() || processInvalidPositions && !position.getValid()) {
locationProvider.getLocation(position.getAttributes(), new LocationProvider.LocationProviderCallback() {
@Override
public void onSuccess(double latitude, double longitude) {
position.set(Position.KEY_APPROXIMATE, true);
position.setValid(true);
position.setFixTime(position.getDeviceTime());
position.setLatitude(latitude);
position.setLongitude(longitude);
Channels.fireMessageReceived(ctx, position, e.getRemoteAddress());
}
@Override
public void onFailure() {
Channels.fireMessageReceived(ctx, position, e.getRemoteAddress());
}
});
} else {
Channels.fireMessageReceived(ctx, position, e.getRemoteAddress());
}
} else {
Channels.fireMessageReceived(ctx, message, e.getRemoteAddress());
}
}
}
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