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/*
* Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
* Copyright 2018 Andrey Kunitsyn (andrey@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.events;
import io.netty.channel.ChannelHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import org.traccar.helper.model.AttributeUtil;
import org.traccar.helper.model.PositionUtil;
import org.traccar.model.Device;
import org.traccar.model.Event;
import org.traccar.model.Geofence;
import org.traccar.model.Position;
import org.traccar.session.cache.CacheManager;
import org.traccar.session.state.OverspeedProcessor;
import org.traccar.session.state.OverspeedState;
import org.traccar.storage.Storage;
import org.traccar.storage.StorageException;
import org.traccar.storage.query.Columns;
import org.traccar.storage.query.Condition;
import org.traccar.storage.query.Request;
import javax.inject.Inject;
import javax.inject.Singleton;
import java.util.Collections;
import java.util.Map;
@Singleton
@ChannelHandler.Sharable
public class OverspeedEventHandler extends BaseEventHandler {
private static final Logger LOGGER = LoggerFactory.getLogger(OverspeedEventHandler.class);
private final CacheManager cacheManager;
private final Storage storage;
private final long minimalDuration;
private final boolean preferLowest;
@Inject
public OverspeedEventHandler(
Config config, CacheManager cacheManager, Storage storage) {
this.cacheManager = cacheManager;
this.storage = storage;
minimalDuration = config.getLong(Keys.EVENT_OVERSPEED_MINIMAL_DURATION) * 1000;
preferLowest = config.getBoolean(Keys.EVENT_OVERSPEED_PREFER_LOWEST);
}
@Override
protected Map<Event, Position> analyzePosition(Position position) {
long deviceId = position.getDeviceId();
Device device = cacheManager.getObject(Device.class, position.getDeviceId());
if (device == null) {
return null;
}
if (!PositionUtil.isLatest(cacheManager, position) || !position.getValid()) {
return null;
}
double speedLimit = AttributeUtil.lookup(cacheManager, Keys.EVENT_OVERSPEED_LIMIT, deviceId);
double positionSpeedLimit = position.getDouble(Position.KEY_SPEED_LIMIT);
if (positionSpeedLimit > 0) {
speedLimit = positionSpeedLimit;
}
double geofenceSpeedLimit = 0;
long overspeedGeofenceId = 0;
if (position.getGeofenceIds() != null) {
for (long geofenceId : position.getGeofenceIds()) {
Geofence geofence = cacheManager.getObject(Geofence.class, geofenceId);
if (geofence != null) {
double currentSpeedLimit = geofence.getDouble(Keys.EVENT_OVERSPEED_LIMIT.getKey());
if (currentSpeedLimit > 0 && geofenceSpeedLimit == 0
|| preferLowest && currentSpeedLimit < geofenceSpeedLimit
|| !preferLowest && currentSpeedLimit > geofenceSpeedLimit) {
geofenceSpeedLimit = currentSpeedLimit;
overspeedGeofenceId = geofenceId;
}
}
}
}
if (geofenceSpeedLimit > 0) {
speedLimit = geofenceSpeedLimit;
}
if (speedLimit == 0) {
return null;
}
OverspeedState state = OverspeedState.fromDevice(device);
OverspeedProcessor.updateState(state, position, speedLimit, minimalDuration, overspeedGeofenceId);
if (state.isChanged()) {
state.toDevice(device);
try {
storage.updateObject(device, new Request(
new Columns.Include("overspeedState", "overspeedTime", "overspeedGeofenceId"),
new Condition.Equals("id", device.getId())));
} catch (StorageException e) {
LOGGER.warn("Update device overspeed error", e);
}
}
return state.getEvent() != null ? Collections.singletonMap(state.getEvent(), position) : null;
}
}
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