/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.commands;
import org.infinispan.commands.remote.BaseRpcCommand;
import org.infinispan.context.InvocationContext;
import org.infinispan.factories.GlobalComponentRegistry;
import org.infinispan.loaders.CacheLoaderManager;
import org.infinispan.loaders.CacheStore;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.util.Util;
/**
* Command to stop a cache and remove all its contents from both
* memory and any backing store.
*
* @author Galder Zamarreño
* @since 5.0
*/
public class RemoveCacheCommand extends BaseRpcCommand {
public static final byte COMMAND_ID = 18;
private EmbeddedCacheManager cacheManager;
private GlobalComponentRegistry registry;
private CacheLoaderManager cacheLoaderManager;
private RemoveCacheCommand() {
super(null); // For command id uniqueness test
}
public RemoveCacheCommand(String cacheName, EmbeddedCacheManager cacheManager,
GlobalComponentRegistry registry, CacheLoaderManager cacheLoaderManager) {
super(cacheName);
this.cacheManager = cacheManager;
this.registry = registry;
this.cacheLoaderManager = cacheLoaderManager;
}
@Override
public Object perform(InvocationContext ctx) throws Throwable {
// To avoid reliance of a thread local flag, get a reference for the
// cache store to be able to clear it after cache has stopped.
CacheStore store = cacheLoaderManager.getCacheStore();
cacheManager.getCache(cacheName).stop();
// After stopping the cache, clear it
if (store != null)
store.clear();
registry.removeCache(cacheName);
return null;
}
@Override
public byte getCommandId() {
return COMMAND_ID;
}
@Override
public Object[] getParameters() {
return Util.EMPTY_OBJECT_ARRAY;
}
@Override
public void setParameters(int commandId, Object[] parameters) {
// No parameters
}
@Override
public boolean isReturnValueExpected() {
return false;
}
@Override
public boolean canBlock() {
return true;
}
}