/**
* 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.jmx.impl;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanFeatureInfo;
import javax.management.MBeanInfo;
import javax.management.MBeanOperationInfo;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
import javax.management.StandardMBean;
import org.neo4j.jmx.Description;
import org.neo4j.jmx.Kernel;
import org.neo4j.kernel.KernelData;
public abstract class Neo4jMBean extends StandardMBean
{
final ObjectName objectName;
protected Neo4jMBean( ManagementData management, boolean isMXBean )
{
super( management.provider.beanInterface, isMXBean );
management.validate( getClass() );
this.objectName = management.getObjectName();
}
protected Neo4jMBean( ManagementData management )
throws NotCompliantMBeanException
{
super( management.provider.beanInterface );
management.validate( getClass() );
this.objectName = management.getObjectName();
}
Neo4jMBean( Class<Kernel> beanInterface, KernelData kernel, ManagementSupport support )
throws NotCompliantMBeanException
{
super( beanInterface );
this.objectName = support.createObjectName( kernel.instanceId(), beanInterface );
}
@Override
protected String getClassName( MBeanInfo info )
{
final Class<?> iface = this.getMBeanInterface();
return iface == null ? super.getClassName( info ) : iface.getName();
}
@Override
protected String getDescription( MBeanInfo info )
{
Description description = describeClass();
if ( description != null ) return description.value();
return super.getDescription( info );
}
@Override
protected String getDescription( MBeanAttributeInfo info )
{
Description description = describeMethod( info, "get", "is" );
if ( description != null ) return description.value();
return super.getDescription( info );
}
@Override
protected String getDescription( MBeanOperationInfo info )
{
Description description = describeMethod( info );
if ( description != null ) return description.value();
return super.getDescription( info );
}
@Override
protected int getImpact( MBeanOperationInfo info )
{
Description description = describeMethod( info );
if ( description != null ) return description.impact();
return super.getImpact( info );
}
private Description describeClass()
{
Description description = getClass().getAnnotation( Description.class );
if ( description == null )
{
for ( Class<?> iface : getClass().getInterfaces() )
{
description = iface.getAnnotation( Description.class );
if ( description != null ) break;
}
}
return description;
}
private Description describeMethod( MBeanFeatureInfo info, String... prefixes )
{
Description description = describeMethod( getClass(), info.getName(), prefixes );
if ( description == null )
{
for ( Class<?> iface : getClass().getInterfaces() )
{
description = describeMethod( iface, info.getName(), prefixes );
if ( description != null ) break;
}
}
return description;
}
private static Description describeMethod( Class<?> type, String methodName, String[] prefixes )
{
if ( prefixes == null || prefixes.length == 0 )
{
try
{
return type.getMethod( methodName ).getAnnotation( Description.class );
}
catch ( Exception e )
{
return null;
}
}
else
{
for ( String prefix : prefixes )
{
try
{
return type.getMethod( prefix + methodName ).getAnnotation( Description.class );
}
catch ( Exception e )
{
// continue to next
}
}
return null;
}
}
}