/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
* Copyright 2004-2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* $Header: /cvs/glassfish/admin/mbeanapi-impl/src/java/com/sun/enterprise/management/support/MappedDelegate.java,v 1.8 2007/05/05 05:23:42 tcfujii Exp $
* $Revision: 1.8 $
* $Date: 2007/05/05 05:23:42 $
*/
package com.sun.enterprise.management.support;
import java.util.Set;
import javax.management.ObjectName;
import javax.management.MBeanServer;
import javax.management.MBeanInfo;
import javax.management.MBeanAttributeInfo;
import javax.management.Attribute;
import javax.management.AttributeList;
import javax.management.InstanceNotFoundException;
import javax.management.AttributeNotFoundException;
import javax.management.InvalidAttributeValueException;
import javax.management.ReflectionException;
import javax.management.MBeanException;
import javax.management.ReflectionException;
import com.sun.enterprise.management.support.AMXAttributeNameMapper;
import com.sun.appserv.management.util.stringifier.SmartStringifier;
import com.sun.appserv.management.util.jmx.JMXUtil;
import com.sun.appserv.management.util.misc.ArrayConversion;
import com.sun.appserv.management.util.misc.CollectionUtil;
import com.sun.appserv.management.util.misc.StringUtil;
/**
Delegate class which wraps another, and maps its Attributes
to different names.
*/
public class MappedDelegate extends DelegateBase
{
/**
MBeanInfo in which names have not been mapped (original).
*/
private final Delegate mDelegate;
/**
MBeanInfo in which names have not been mapped (original).
*/
private final MBeanInfo mUnmappedMBeanInfo;
/**
MBeanInfo in which names have been mapped.
*/
private final MBeanInfo mMappedMBeanInfo;
/**
the Attribute names, before mapping
*/
private final Set<String> mUnmappedAttributeNames;
/**
the mapper
*/
private final AMXAttributeNameMapper mAttributeNameMapper;
/**
New instance which wraps the supplied delegate using the specified mapper.
*/
public
MappedDelegate(
final Delegate delegate,
final AMXAttributeNameMapper mapper )
{
super( "MappedDelegate." + (delegate == null ? "null" : delegate.getID()), null);
mDelegate = delegate;
mUnmappedMBeanInfo = getUnmappedMBeanInfoFresh();
final String[] unmappedAttributeNames =
JMXUtil.getAttributeNames( mUnmappedMBeanInfo.getAttributes() );
mUnmappedAttributeNames = ArrayConversion.arrayToSet( unmappedAttributeNames );
mAttributeNameMapper = mapper;
//mAttributeNameMapper.deriveAll( unmappedAttributeNames );
mMappedMBeanInfo = mapMBeanInfo( mDelegate.getMBeanInfo() );
}
/**
Get the unmapped name for a mapped Attribute name. If the name has
not been mapped, it is returned unchanged.
*/
protected String
derivedToOriginal( final String mappedName )
{
return( mAttributeNameMapper.derivedToOriginal( mappedName ) );
}
/**
Return the unmapped version of an mapped Attribute.
*/
private Attribute
derivedToOriginal( final Attribute mappedAttr )
{
final String unmappedName = derivedToOriginal( mappedAttr.getName() );
return( new Attribute( unmappedName, mappedAttr.getValue() ) );
}
/**
Call derivedToOriginal( name ) for each mapped name.
*/
protected String[]
derivedToOriginal( final String[] mappedNames )
{
final String[] unmappedNames = new String[ mappedNames.length ];
for( int i = 0; i < unmappedNames.length; ++i )
{
unmappedNames[ i ] = derivedToOriginal( mappedNames[ i ] );
}
return( unmappedNames );
}
/**
Get the mapped name for an unmapped name. If the name has
not been mapped, it is returned unchanged.
*/
private String
originalToDerived( final String unmappedName )
{
return( mAttributeNameMapper.originalToDerived( unmappedName ) );
}
/**
*/
private Attribute
originalToDerived( final Attribute unmappedAttr )
{
final String mappedName = originalToDerived( unmappedAttr.getName() );
return( new Attribute( mappedName, unmappedAttr.getValue() ) );
}
protected AttributeList
derivedToOriginal( final AttributeList mappedAttrs )
{
// first, create a new list which uses the unmapped names
final int numAttrs = mappedAttrs.size();
final AttributeList unmappedAttrs = new AttributeList();
for( int i = 0; i < numAttrs; ++i )
{
unmappedAttrs.add( derivedToOriginal( (Attribute)mappedAttrs.get( i ) ) );
}
return( unmappedAttrs );
}
protected AttributeList
originalToDerived( final AttributeList unmappedAttrs )
{
// first, create a new list which uses the unmapped names
final int numAttrs = unmappedAttrs.size();
final AttributeList mappedAttrs = new AttributeList();
for( int i = 0; i < numAttrs; ++i )
{
mappedAttrs.add( originalToDerived( (Attribute)unmappedAttrs.get( i ) ) );
}
return( unmappedAttrs );
}
public boolean
supportsAttribute( final String mappedName )
{
return( mAttributeNameMapper.getDerivedNames().contains( mappedName ) );
}
private void
checkSupported( final String mappedName )
throws AttributeNotFoundException
{
if ( ! supportsAttribute( mappedName ) )
{
debug( "Attribute " + mappedName + " is not supported, have: " +
CollectionUtil.toString( mAttributeNameMapper.getDerivedNames(), ", ") );
throw new AttributeNotFoundException( mappedName );
}
}
public Object
getAttribute( final String mappedName )
throws AttributeNotFoundException
{
checkSupported( mappedName );
final String unmappedName = mAttributeNameMapper.derivedToOriginal( mappedName );
return( mDelegate.getAttribute( unmappedName ) );
}
public AttributeList
getAttributes( final String[] mappedNames )
{
final AttributeList unmappedResults =
mDelegate.getAttributes( derivedToOriginal( mappedNames ) );
return( originalToDerived( unmappedResults ) );
}
public void
setAttribute( final Attribute mappedAttr )
throws AttributeNotFoundException, InvalidAttributeValueException
{
checkSupported( mappedAttr.getName() );
final Attribute unmappedAttr = derivedToOriginal( mappedAttr );
mDelegate.setAttribute( unmappedAttr );
}
public AttributeList
setAttributes( final AttributeList mappedAttrs )
{
// first, create a new list which uses the unmapped names
final AttributeList unmappedAttrs = derivedToOriginal( mappedAttrs );
// get the Attributes using the unmapped names
final AttributeList unmappedResults =
mDelegate.setAttributes( unmappedAttrs );
return( originalToDerived( unmappedResults ) );
}
protected MBeanInfo
getUnmappedMBeanInfoFresh()
{
return( mDelegate.getMBeanInfo( ) );
}
protected MBeanInfo
getUnmappedMBeanInfo()
{
return( mUnmappedMBeanInfo );
}
private MBeanAttributeInfo
mapAttributeInfo( final MBeanAttributeInfo unmappedInfo )
{
String mappedName = originalToDerived( unmappedInfo.getName() );
if ( mappedName == null )
{
mappedName = unmappedInfo.getName();
}
final MBeanAttributeInfo mappedInfo =
new MBeanAttributeInfo(
mappedName,
unmappedInfo.getType(),
unmappedInfo.getDescription(),
unmappedInfo.isReadable(),
unmappedInfo.isWritable(),
unmappedInfo.isIs()
);
return( mappedInfo );
}
private MBeanAttributeInfo[]
mapAttributeInfos( final MBeanAttributeInfo[] unmappedInfos )
{
final MBeanAttributeInfo[] mappedInfos =
new MBeanAttributeInfo[ unmappedInfos.length ];
for ( int i = 0; i < unmappedInfos.length; ++i )
{
final String attrName = unmappedInfos[ i ].getName();
assert( attrName != null );
mappedInfos[ i ] = mapAttributeInfo( unmappedInfos[ i ] );
assert( mappedInfos[ i ].getName() != null );
debug( "Mapped " + unmappedInfos[ i ].getName() + " to " + mappedInfos[i].getName() );
}
return( mappedInfos );
}
/**
Create an MBeanInfo which contains the mapped names.
*/
private MBeanInfo
mapMBeanInfo( final MBeanInfo unmappedMBeanInfo )
{
final MBeanAttributeInfo[] mappedAttributeInfos =
mapAttributeInfos( unmappedMBeanInfo.getAttributes() );
final MBeanInfo mappedInfo = new MBeanInfo(
unmappedMBeanInfo.getClassName(),
unmappedMBeanInfo.getDescription(),
mappedAttributeInfos,
unmappedMBeanInfo.getConstructors(),
unmappedMBeanInfo.getOperations(),
unmappedMBeanInfo.getNotifications()
);
return( mappedInfo );
}
protected MBeanInfo
getMappedMBeanInfo()
{
return( mMappedMBeanInfo );
}
public MBeanInfo
getMBeanInfo()
{
return( getMappedMBeanInfo() );
}
/**
*/
public String[]
getAttributeNames( )
{
final String[] names =
JMXUtil.getAttributeNames( getMBeanInfo().getAttributes() );
return( names );
}
/**
Just pass it along to the Delegate
*/
public final Object
invoke(
String operationName,
Object[] args,
String[] types )
{
final Object result = mDelegate.invoke( operationName, args, types );
return( result );
}
protected final String
_getDefaultValue( final String mappedName )
throws AttributeNotFoundException
{
checkSupported( mappedName );
final String unmappedName = mAttributeNameMapper.derivedToOriginal( mappedName );
return( mDelegate.getDefaultValue( unmappedName ) );
}
}
|
