/**
    * Copyright 2005-2011 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.rice.core.impl.cache;
  
  import org.kuali.rice.core.api.cache.CacheService;
  import org.kuali.rice.core.api.cache.CacheTarget;
  import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;
  import org.springframework.beans.factory.InitializingBean;
  import org.springframework.cache.Cache;
  import org.springframework.cache.CacheManager;
  
  import java.util.Collection;
  
  public class CacheServiceImpl implements CacheService, InitializingBean {
  
      private CacheManager cacheManager;
  
      @Override
      public void flush(Collection<CacheTarget> cacheTargets) throws RiceIllegalArgumentException {
          if (cacheTargets == null) {
              throw new RiceIllegalArgumentException("cacheTargets is null");
          }
          for (CacheTarget cacheTarget : cacheTargets) {
              if (cacheTarget == null) {
                  throw new RiceIllegalArgumentException("cacheTarget is null");
              }
              final Cache c = getCache(cacheTarget.getCache());
              if (c != null) {
                  if (cacheTarget.containsKey()) {
                      c.evict(cacheTarget.getKey());
                  } else {
                      c.clear();
                  }
              }
          }
      }
  
      private Cache getCache(String cache) {
          return cacheManager.getCache(cache);
      }
  
      public void setCacheManager(CacheManager cacheManager) {
          this.cacheManager = cacheManager;
      }
  
      @Override
      public void afterPropertiesSet() throws Exception {
          if (cacheManager == null) {
              throw new IllegalStateException("the cacheManager must be set");
          }
      }
  }