/* * Copyright (c) 1999, 2004, 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 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;        }    }}