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MemoryMappingBean.java
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MemoryMappingBean.java
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/**
* Copyright (c) 2002-2016 "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 java.util.Collection;
import java.util.Iterator;
import javax.management.NotCompliantMBeanException;
import org.neo4j.helpers.Service;
import org.neo4j.jmx.impl.ManagementBeanProvider;
import org.neo4j.jmx.impl.ManagementData;
import org.neo4j.jmx.impl.Neo4jMBean;
import org.neo4j.kernel.impl.nioneo.store.WindowPoolStats;
import org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource;
import org.neo4j.kernel.impl.transaction.XaDataSourceManager;
import org.neo4j.management.MemoryMapping;
import org.neo4j.management.WindowPoolInfo;
@Service.Implementation( ManagementBeanProvider.class )
public final class MemoryMappingBean extends ManagementBeanProvider
{
public MemoryMappingBean()
{
super( MemoryMapping.class );
}
@Override
protected Neo4jMBean createMBean( ManagementData management ) throws NotCompliantMBeanException
{
return new MemoryMappingImpl( management );
}
@Override
protected Neo4jMBean createMXBean( ManagementData management ) throws NotCompliantMBeanException
{
return new MemoryMappingImpl( management, true );
}
private static class MemoryMappingImpl extends Neo4jMBean implements MemoryMapping
{
private final NeoStoreXaDataSource datasource;
MemoryMappingImpl( ManagementData management ) throws NotCompliantMBeanException
{
super( management );
this.datasource = neoDataSource( management );
}
private NeoStoreXaDataSource neoDataSource( ManagementData management )
{
return management.getKernelData().graphDatabase().getDependencyResolver().resolveDependency(
XaDataSourceManager.class ).getNeoStoreDataSource();
}
MemoryMappingImpl( ManagementData management, boolean isMxBean )
{
super( management, isMxBean );
this.datasource = neoDataSource( management );
}
public WindowPoolInfo[] getMemoryPools()
{
return getMemoryPoolsImpl( datasource );
}
public static WindowPoolInfo[] getMemoryPoolsImpl( NeoStoreXaDataSource datasource )
{
Collection<WindowPoolStats> stats = datasource.getWindowPoolStats();
WindowPoolInfo[] pools = new WindowPoolInfo[stats.size()];
Iterator<WindowPoolStats> iter = stats.iterator();
for ( int index = 0; iter.hasNext(); index++ )
{
pools[index] = createWindowPoolInfo( iter.next() );
}
return pools;
}
private static WindowPoolInfo createWindowPoolInfo( WindowPoolStats stats )
{
return new WindowPoolInfo( stats.getName(), stats.getMemAvail(), stats.getMemUsed(),
stats.getWindowCount(), stats.getWindowSize(), stats.getHitCount(),
stats.getMissCount(), stats.getOomCount() );
}
}
}