| /* |
| * 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.directory.server.core.cache; |
| |
| |
| import java.io.File; |
| |
| import net.sf.ehcache.Cache; |
| import net.sf.ehcache.CacheManager; |
| import net.sf.ehcache.Status; |
| |
| import org.apache.directory.server.core.DirectoryService; |
| import org.apache.directory.shared.ldap.exception.LdapException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A ehcache based cache service to be used for various caching requirement in the server. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class CacheService |
| { |
| |
| private static final Logger LOG = LoggerFactory.getLogger( CacheService.class ); |
| |
| /** the ehcache configuration file */ |
| private File configFile; |
| |
| /** the ehcache cache manager */ |
| private CacheManager cacheManager; |
| |
| |
| public CacheService() |
| { |
| } |
| |
| |
| public void initialize( DirectoryService dirService ) |
| { |
| if ( ( cacheManager != null ) && ( cacheManager.getStatus() == Status.STATUS_ALIVE ) ) |
| { |
| LOG.warn( "cache service was already initialized and is alive" ); |
| return; |
| } |
| |
| if ( configFile == null || !configFile.exists() ) |
| { |
| LOG.info( "no custom cache configuration was set, loading the default cache configuration" ); |
| |
| cacheManager = new CacheManager( getClass().getClassLoader().getResource( "directory-cacheservice.xml" ) ); |
| } |
| else |
| { |
| LOG.info( "loading cache configuration from the file {}", configFile ); |
| |
| cacheManager = new CacheManager( configFile.getAbsolutePath() ); |
| } |
| } |
| |
| |
| public void destroy() |
| { |
| if ( cacheManager.getStatus() == Status.STATUS_ALIVE ) |
| { |
| LOG.info( "destroying the cache service" ); |
| |
| cacheManager.removalAll(); |
| |
| cacheManager.shutdown(); |
| } |
| } |
| |
| |
| public Cache getCache( String name ) |
| { |
| LOG.info( "fetching the cache named {}", name ); |
| |
| return cacheManager.getCache( name ); |
| } |
| |
| |
| public void setConfigFile( File configFile ) |
| { |
| if ( configFile == null ) |
| { |
| throw new IllegalArgumentException( "invalid configuration file, null" ); |
| } |
| |
| this.configFile = configFile; |
| } |
| |
| } |