/*

 * Copyright 1999-2004 Sun Microsystems, Inc.  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.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.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 list(Name name) throws NamingException {

        Context ctx = getTargetContext();

        return ctx.list(name);

    }

    public NamingEnumeration list(String name) throws NamingException {

        Context ctx = getTargetContext();

        return ctx.list(name);

    }

    public NamingEnumeration listBindings(Name name)

        throws NamingException

    {

        Context ctx = getTargetContext();

        return ctx.listBindings(name);

    }

    public NamingEnumeration 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;

        }

    }

}