/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.cocoon.acting;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.cocoon.caching.Cache;
import org.apache.cocoon.environment.Redirector;
import org.apache.cocoon.environment.SourceResolver;
import java.util.Map;
/**
* Simple action which ensures the cache is cleared of all
* cached results
*
* @author <a href="mailto:Michael.Melhem@managesoft.com">Michael Melhem</a>
* @version CVS $Id: ClearCacheAction.java 433543 2006-08-22 06:22:54Z crossley $
*/
public class ClearCacheAction extends ServiceableAction implements ThreadSafe {
public Map act(Redirector redirector,
SourceResolver resolver,
Map objectModel,
String src,
Parameters par
) throws Exception {
final String cacheRole = par.getParameter("cache-role", Cache.ROLE);
Cache cache = null;
try {
cache = (Cache)this.manager.lookup(cacheRole);
cache.clear();
return EMPTY_MAP;
} catch (Exception ex) {
if (this.getLogger().isDebugEnabled()) {
getLogger().debug("Exception while trying to clear Cache with role " + cacheRole, ex);
}
return null;
} finally {
this.manager.release( cache );
}
}
}