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	/*
	* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code 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 General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package javax.naming.spi;

	import java.util.Hashtable;
	import javax.naming.*;

	/**
	* This class is for dealing with federations/continuations.
	*
	* @author Rosanna Lee
	* @author Scott Seligman
	* @since 1.3
	*/

	class ContinuationContext implements Context, Resolver {
	protected CannotProceedException cpe;
	protected Hashtable<?,?> env;
	protected Context contCtx = null;

	protected ContinuationContext(CannotProceedException cpe,
	Hashtable<?,?> env) {
	this.cpe = cpe;
	this.env = env;
	}

	protected Context getTargetContext() throws NamingException {
	if (contCtx == null) {
	if (cpe.getResolvedObj() == null)
	throw (NamingException)cpe.fillInStackTrace();

	contCtx = NamingManager.getContext(cpe.getResolvedObj(),
	cpe.getAltName(),
	cpe.getAltNameCtx(),
	env);
	if (contCtx == null)
	throw (NamingException)cpe.fillInStackTrace();
	}
	return contCtx;
	}

	public Object lookup(Name name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.lookup(name);
	}

	public Object lookup(String name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.lookup(name);
	}

	public void bind(Name name, Object newObj) throws NamingException {
	Context ctx = getTargetContext();
	ctx.bind(name, newObj);
	}

	public void bind(String name, Object newObj) throws NamingException {
	Context ctx = getTargetContext();
	ctx.bind(name, newObj);
	}

	public void rebind(Name name, Object newObj) throws NamingException {
	Context ctx = getTargetContext();
	ctx.rebind(name, newObj);
	}
	public void rebind(String name, Object newObj) throws NamingException {
	Context ctx = getTargetContext();
	ctx.rebind(name, newObj);
	}

	public void unbind(Name name) throws NamingException {
	Context ctx = getTargetContext();
	ctx.unbind(name);
	}
	public void unbind(String name) throws NamingException {
	Context ctx = getTargetContext();
	ctx.unbind(name);
	}

	public void rename(Name name, Name newName) throws NamingException {
	Context ctx = getTargetContext();
	ctx.rename(name, newName);
	}
	public void rename(String name, String newName) throws NamingException {
	Context ctx = getTargetContext();
	ctx.rename(name, newName);
	}

	public NamingEnumeration<NameClassPair> list(Name name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.list(name);
	}
	public NamingEnumeration<NameClassPair> list(String name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.list(name);
	}


	public NamingEnumeration<Binding> listBindings(Name name)
	throws NamingException
	{
	Context ctx = getTargetContext();
	return ctx.listBindings(name);
	}

	public NamingEnumeration<Binding> listBindings(String name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.listBindings(name);
	}

	public void destroySubcontext(Name name) throws NamingException {
	Context ctx = getTargetContext();
	ctx.destroySubcontext(name);
	}
	public void destroySubcontext(String name) throws NamingException {
	Context ctx = getTargetContext();
	ctx.destroySubcontext(name);
	}

	public Context createSubcontext(Name name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.createSubcontext(name);
	}
	public Context createSubcontext(String name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.createSubcontext(name);
	}

	public Object lookupLink(Name name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.lookupLink(name);
	}
	public Object lookupLink(String name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.lookupLink(name);
	}

	public NameParser getNameParser(Name name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.getNameParser(name);
	}

	public NameParser getNameParser(String name) throws NamingException {
	Context ctx = getTargetContext();
	return ctx.getNameParser(name);
	}

	public Name composeName(Name name, Name prefix)
	throws NamingException
	{
	Context ctx = getTargetContext();
	return ctx.composeName(name, prefix);
	}

	public String composeName(String name, String prefix)
	throws NamingException {
	Context ctx = getTargetContext();
	return ctx.composeName(name, prefix);
	}

	public Object addToEnvironment(String propName, Object value)
	throws NamingException {
	Context ctx = getTargetContext();
	return ctx.addToEnvironment(propName, value);
	}

	public Object removeFromEnvironment(String propName)
	throws NamingException {
	Context ctx = getTargetContext();
	return ctx.removeFromEnvironment(propName);
	}

	public Hashtable<?,?> getEnvironment() throws NamingException {
	Context ctx = getTargetContext();
	return ctx.getEnvironment();
	}

	public String getNameInNamespace() throws NamingException {
	Context ctx = getTargetContext();
	return ctx.getNameInNamespace();
	}

	public ResolveResult
	resolveToClass(Name name, Class<? extends Context> contextType)
	throws NamingException
	{
	if (cpe.getResolvedObj() == null)
	throw (NamingException)cpe.fillInStackTrace();

	Resolver res = NamingManager.getResolver(cpe.getResolvedObj(),
	cpe.getAltName(),
	cpe.getAltNameCtx(),
	env);
	if (res == null)
	throw (NamingException)cpe.fillInStackTrace();
	return res.resolveToClass(name, contextType);
	}

	public ResolveResult
	resolveToClass(String name, Class<? extends Context> contextType)
	throws NamingException
	{
	if (cpe.getResolvedObj() == null)
	throw (NamingException)cpe.fillInStackTrace();

	Resolver res = NamingManager.getResolver(cpe.getResolvedObj(),
	cpe.getAltName(),
	cpe.getAltNameCtx(),
	env);
	if (res == null)
	throw (NamingException)cpe.fillInStackTrace();
	return res.resolveToClass(name, contextType);
	}

	public void close() throws NamingException {
	cpe = null;
	env = null;
	if (contCtx != null) {
	contCtx.close();
	contCtx = null;
	}
	}
	}

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