001/*
002 *  Copyright 2010 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.site;
017
018import java.io.File;
019import java.util.Map;
020
021import org.apache.avalon.framework.parameters.Parameters;
022import org.apache.avalon.framework.service.ServiceException;
023import org.apache.avalon.framework.service.ServiceManager;
024import org.apache.avalon.framework.thread.ThreadSafe;
025import org.apache.cocoon.acting.ServiceableAction;
026import org.apache.cocoon.environment.Redirector;
027import org.apache.commons.io.FileUtils;
028import org.slf4j.Logger;
029import org.slf4j.LoggerFactory;
030
031/**
032 * Invalidates cached data for a given site.
033 */
034public class InvalidatePageAction extends ServiceableAction implements ThreadSafe
035{
036    private Logger _logger = LoggerFactory.getLogger("site.cache.log");
037    
038    private CacheAccessManager _cacheAccess;
039    
040    @Override
041    public void service(ServiceManager sManager) throws ServiceException
042    {
043        super.service(sManager);
044        _cacheAccess = (CacheAccessManager) sManager.lookup(CacheAccessManager.ROLE);
045    }
046    
047    @Override
048    public Map act(Redirector redirector, org.apache.cocoon.environment.SourceResolver resolver, Map objectModel, String source, Parameters parameters) throws Exception
049    {
050        String site = parameters.getParameter("site");
051        String page = parameters.getParameter("page");
052        
053        File root = SiteCacheHelper.getRootCache();
054        
055        String path = site + "/" + page;
056        
057        File pageFile = new File(root, path);
058
059        if (pageFile.exists())
060        {
061            FileUtils.forceDelete(pageFile);
062        }
063        
064        _logger.info("Invalidate cache for page '" + path + "'");
065        
066        _cacheAccess.resetPage(path);
067        
068        return EMPTY_MAP;
069    }
070}