/*
 * 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.
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package com.sun.appserv.management.util.jmx;

import java.util.Set;
import java.util.Collections;

import com.sun.appserv.management.util.misc.GSetUtil;
import com.sun.appserv.management.util.misc.GSetUtil;

/**
	A mapper that maps every name to itself.
 */
public final class NoOpAttributeNameMapper implements AttributeNameMapper
{
	final Set<String>	mAttributeSet;
	
	/**
		Create a new instance which will map (as necessary) the specified
		Attribute names.
		Same as AttributeNameMapperImpl( attributeNames, new AttributeNameManglerImpl() )
	 */
		public
	NoOpAttributeNameMapper( final String[] originalNames )
	{
		mAttributeSet	= GSetUtil.newStringSet( originalNames );
	}
	

        public String
	matchName(
	    final String   derivedName,
	    final String[] candidates )
	{
	    throw new UnsupportedOperationException( "matchName" );
	}
	
		public void
	dontMap( final String originalName )
	{
		addMapping( originalName, originalName );
	}
	
		public void
	deriveAll( final String[] originalNames )
	{
		GSetUtil.addArray( mAttributeSet, originalNames );
	}
	
		public void
	addMapping(
		final String originalName,
		final String derivedName )
	{
		if ( ! originalName.equals( derivedName ) )
		{
			throw new IllegalArgumentException( derivedName );
		}
		
		mAttributeSet.add( originalName );
	}
	
		public boolean
	requiresMapping( final String originalName )
	{
		return( false );
	}
	
		public String
	originalToDerived( final String originalName )
	{
		return( originalName );
	}
	
		public String
	derivedToOriginal( final String derivedName )
	{
		return( derivedName );
	}
	
		public Set<String>
	getAttributeNames( )
	{
		return( Collections.unmodifiableSet( mAttributeSet ) );
	}
}