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/*
* Copyright 2015 - 2024 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 org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import org.traccar.database.StatisticsManager;
import org.traccar.geolocation.GeolocationProvider;
import org.traccar.model.Position;
import org.traccar.session.cache.CacheManager;
public class GeolocationHandler extends BasePositionHandler {
private static final Logger LOGGER = LoggerFactory.getLogger(GeolocationHandler.class);
private final GeolocationProvider geolocationProvider;
private final CacheManager cacheManager;
private final StatisticsManager statisticsManager;
private final boolean processInvalidPositions;
private final boolean reuse;
private final boolean requireWifi;
public GeolocationHandler(
Config config, GeolocationProvider geolocationProvider, CacheManager cacheManager,
StatisticsManager statisticsManager) {
this.geolocationProvider = geolocationProvider;
this.cacheManager = cacheManager;
this.statisticsManager = statisticsManager;
processInvalidPositions = config.getBoolean(Keys.GEOLOCATION_PROCESS_INVALID_POSITIONS);
reuse = config.getBoolean(Keys.GEOLOCATION_REUSE);
requireWifi = config.getBoolean(Keys.GEOLOCATION_REQUIRE_WIFI);
}
@Override
public void handlePosition(Position position, Callback callback) {
if ((position.getOutdated() || processInvalidPositions && !position.getValid())
&& position.getNetwork() != null
&& (!requireWifi || position.getNetwork().getWifiAccessPoints() != null)) {
if (reuse) {
Position lastPosition = cacheManager.getPosition(position.getDeviceId());
if (lastPosition != null && position.getNetwork().equals(lastPosition.getNetwork())) {
updatePosition(
position, lastPosition.getLatitude(), lastPosition.getLongitude(),
lastPosition.getAccuracy());
callback.processed(position);
return;
}
}
if (statisticsManager != null) {
statisticsManager.registerGeolocationRequest();
}
geolocationProvider.getLocation(position.getNetwork(),
new GeolocationProvider.LocationProviderCallback() {
@Override
public void onSuccess(double latitude, double longitude, double accuracy) {
updatePosition(position, latitude, longitude, accuracy);
callback.processed(position);
}
@Override
public void onFailure(Throwable e) {
LOGGER.warn("Geolocation network error", e);
callback.processed(position);
}
});
} else {
callback.processed(position);
}
}
private void updatePosition(Position position, 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);
}
}
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