package fr.ifremer.quadrige2.core.service.technical;
   
   /*-
    * #%L
    * Quadrige2 Core :: Quadrige2 Core Shared
    * $Id:$
    * $HeadURL:$
    * %%
    * Copyright (C) 2017 Ifremer
   * %%
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or
   * (at your option) any later version.
   * 
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   * 
   * You should have received a copy of the GNU Affero General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   * #L%
   */
  
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.springframework.cache.Cache;
  import org.springframework.cache.CacheManager;
  import org.springframework.context.annotation.Lazy;
  import org.springframework.stereotype.Component;
  
  import javax.annotation.Resource;
  
  /**
   * <p>CacheServiceImpl class.</p>
   *
   */
  @Component(value = "cacheService")
  @Lazy
  public class CacheServiceImpl implements CacheService {
      /** Logger. */
      private static final Log logger =
              LogFactory.getLog(CacheServiceImpl.class);
  
      @Resource(name = "cacheManager")
      private CacheManager cacheManager;
  
      @Resource(name = "ehcache")
      private net.sf.ehcache.CacheManager ehCacheManager;
  
      /** {@inheritDoc} */
      @Override
      public void clearAllCaches() {
          logger.info("Clearing all caches...");
          for (String cacheName : cacheManager.getCacheNames()) {
              Cache cache = cacheManager.getCache(cacheName);
              cache.clear();
          }
  
          ehCacheManager.clearAll();
      }
  
      /** {@inheritDoc} */
      @Override
      public void clearCache(String cacheName) {
          logger.info("Clearing cache " + cacheName + "...");
          Cache cache = cacheManager.getCache(cacheName);
          if (cache != null) {
              cache.clear();
              return;
          }
  
          net.sf.ehcache.Cache ehCache = ehCacheManager.getCache(cacheName);
          if (ehCache != null) {
              ehCache.removeAll();
              return;
          }
  
          logger.warn("Unable to clear cache. Cache with name '" + cacheName + "' could not found.");
      }
  
      /** {@inheritDoc} */
      @Override
      public Cache getCache(String cacheName) {
          Cache cache = cacheManager.getCache(cacheName);
          if (cache == null) {
              net.sf.ehcache.Cache ehCache = ehCacheManager.getCache(cacheName);
              if (ehCache != null) {
                  logger.warn("Asking for a spring cache with name '" + cacheName + "', but correspond to a EhCache instance. WIll return null.");
              }
          }
          return cache;
      }
  }