001/*
002 *  Copyright 2018 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.core.cache;
017
018import java.util.Collections;
019import java.util.List;
020
021import org.apache.avalon.framework.service.ServiceException;
022import org.apache.avalon.framework.service.ServiceManager;
023
024import org.ametys.core.ObservationConstants;
025import org.ametys.core.observation.Event;
026import org.ametys.core.observation.ObservationManager;
027import org.ametys.core.ui.Callable;
028import org.ametys.core.ui.StaticClientSideElement;
029
030/**
031 * Client side element for the cache buttons
032 */
033public class CacheClientSideElement extends StaticClientSideElement
034{
035    private AbstractCacheManager _cacheManager;
036    private ObservationManager _observationManager;
037
038    @Override
039    public void service(ServiceManager smanager) throws ServiceException
040    {
041        super.service(smanager);
042        _cacheManager = (AbstractCacheManager) smanager.lookup(AbstractCacheManager.ROLE);
043        
044        if (smanager.hasService(ObservationManager.ROLE))
045        {
046            _observationManager = (ObservationManager) smanager.lookup(ObservationManager.ROLE);
047        }
048    }
049
050    /**
051     * clear the cache related to given id
052     * @param ids the list of all caches ids
053     */
054    @Callable
055    public void clearCaches(List<String> ids)
056    {
057        for (String id : ids)
058        {
059            Cache<Object, Object> cache = _cacheManager.get(id);
060            cache.resetCache();
061            
062            if (_observationManager != null)
063            {
064                _observationManager.notify(new Event(ObservationConstants.EVENT_CACHE_RESET, 
065                                                     _currentUserProvider.getUser(), 
066                                                     Collections.singletonMap(ObservationConstants.ARGS_CACHE_ID, id)));
067            }
068        }
069    }
070}