/*
    * Copyright 2009 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.ole.sys.batch.service.impl;
  
  import org.kuali.ole.sys.OLEConstants;
  import org.kuali.ole.sys.batch.service.CacheService;
  import org.kuali.ole.sys.service.NonTransactional;
  import org.kuali.rice.core.impl.services.CoreImplServiceLocator;
  import org.springframework.cache.Cache;
  import org.springframework.cache.CacheManager;
  
  /**
   * @see org.kuali.ole.sys.batch.service.CacheService
   */
  @NonTransactional
  public class CacheServiceImpl implements CacheService {
      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(CacheServiceImpl.class);
  
      /**
       * @see org.kuali.ole.sys.batch.service.CacheService#clearSystemCache()
       */
      @Override
      public void clearSystemCaches() {
          for ( CacheManager cm :  CoreImplServiceLocator.getCacheManagerRegistry().getCacheManagers() ) {
              for ( String cacheName : cm.getCacheNames() ) {
                  cm.getCache(cacheName).clear();
      }
              }
          }
  
      @Override
      public void clearNamedCache(String cacheName) {
          CacheManager cm = CoreImplServiceLocator.getCacheManagerRegistry().getCacheManager(
                  OLEConstants.KFS_CORE_DISTRIBUTED_CACHE_MANAGER);
          if (cm != null) {
              Cache cache = cm.getCache(cacheName);
              if (cache != null) {
                  cache.clear();
                  if (LOG.isDebugEnabled()) {
                      LOG.debug("Cleared " + cacheName + " cache in cache manager "
                              + OLEConstants.KFS_CORE_DISTRIBUTED_CACHE_MANAGER + ".");
                  }
              }
              else {
                  // this is at debug level intentionally, since not all BOs have caches
                  LOG.debug("Unable to find cache for " + cacheName + " in cache manager "
                          + OLEConstants.KFS_CORE_DISTRIBUTED_CACHE_MANAGER);
              }
          }
          else {
              LOG.info("Unable to find cache manager " + OLEConstants.KFS_CORE_DISTRIBUTED_CACHE_MANAGER
                      + " when attempting to clear " + cacheName);
          }
      }
  
      @Override
      public void clearKfsBusinessObjectCache(Class boClass) {
          String cacheName = OLEConstants.APPLICATION_NAMESPACE_CODE + "/" + boClass.getSimpleName();
          clearNamedCache(cacheName);
      }
  }