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/*
* Copyright 2012 - 2021 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.handler;
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.config.Config;
import org.traccar.config.Keys;
import org.traccar.geocoder.Geocoder;
import org.traccar.model.Position;
import org.traccar.session.cache.CacheManager;
@ChannelHandler.Sharable
public class GeocoderHandler extends ChannelInboundHandlerAdapter {
private static final Logger LOGGER = LoggerFactory.getLogger(GeocoderHandler.class);
private final Geocoder geocoder;
private final CacheManager cacheManager;
private final boolean ignorePositions;
private final boolean processInvalidPositions;
private final int reuseDistance;
public GeocoderHandler(Config config, Geocoder geocoder, CacheManager cacheManager) {
this.geocoder = geocoder;
this.cacheManager = cacheManager;
ignorePositions = config.getBoolean(Keys.GEOCODER_IGNORE_POSITIONS);
processInvalidPositions = config.getBoolean(Keys.GEOCODER_PROCESS_INVALID_POSITIONS);
reuseDistance = config.getInteger(Keys.GEOCODER_REUSE_DISTANCE, 0);
}
@Override
public void channelRead(final ChannelHandlerContext ctx, Object message) {
if (message instanceof Position && !ignorePositions) {
final Position position = (Position) message;
if (processInvalidPositions || position.getValid()) {
if (reuseDistance != 0) {
Position lastPosition = cacheManager.getPosition(position.getDeviceId());
if (lastPosition != null && lastPosition.getAddress() != null
&& position.getDouble(Position.KEY_DISTANCE) <= reuseDistance) {
position.setAddress(lastPosition.getAddress());
ctx.fireChannelRead(position);
return;
}
}
geocoder.getAddress(position.getLatitude(), position.getLongitude(),
new Geocoder.ReverseGeocoderCallback() {
@Override
public void onSuccess(String address) {
position.setAddress(address);
ctx.fireChannelRead(position);
}
@Override
public void onFailure(Throwable e) {
LOGGER.warn("Geocoding failed", e);
ctx.fireChannelRead(position);
}
});
} else {
ctx.fireChannelRead(position);
}
} else {
ctx.fireChannelRead(message);
}
}
}
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