/** * Copyright (c) 2002-2011 "Neo Technology," * Network Engine for Objects in Lund AB [http://neotechnology.com] * * This file is part of Neo4j. * * Neo4j is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.neo4j.management.impl; import javax.management.MBeanOperationInfo; import javax.management.NotCompliantMBeanException; import org.neo4j.helpers.Service; import org.neo4j.kernel.KernelExtension.KernelData; import org.neo4j.kernel.impl.core.NodeManager; import org.neo4j.management.Cache; @Service.Implementation( ManagementBeanProvider.class ) public class CacheBean extends ManagementBeanProvider { public CacheBean() { super( Cache.class ); } @Override protected Neo4jMBean createMBean( KernelData kernel ) throws NotCompliantMBeanException { return new CacheManager( this, kernel ); } @Description( "Information about the caching in Neo4j" ) private class CacheManager extends Neo4jMBean implements Cache { CacheManager( ManagementBeanProvider provider, KernelData kernel ) throws NotCompliantMBeanException { super( provider, kernel ); this.nodeManager = kernel.getConfig().getGraphDbModule().getNodeManager(); } private final NodeManager nodeManager; @Description( "The type of cache used by Neo4j" ) public String getCacheType() { return nodeManager.getCacheType().getDescription(); } @Description( "The number of Nodes currently in cache" ) public int getNodeCacheSize() { return nodeManager.getNodeCacheSize(); } @Description( "The number of Relationships currently in cache" ) public int getRelationshipCacheSize() { return nodeManager.getRelationshipCacheSize(); } @Description( value = "Clears the Neo4j caches", impact = MBeanOperationInfo.ACTION ) public void clear() { nodeManager.clearCache(); } } }