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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 com.sun.jndi.toolkit.ctx;

	import javax.naming.*;
	import javax.naming.directory.*;

	/* Direct subclasses of ComponentDirContext must provide implementations for
	* the abstract c_ DirContext methods, and override the c_ Context methods
	* (which are no longer abstract because they have been overriden by
	* AtomicContext, the direct superclass of PartialDSCompositeContext).
	*
	* If the subclass is supports implicit nns, it must override all the
	* c_*_nns methods corresponding to those in DirContext and Context.
	* See ComponentContext for details.
	*
	* @author Rosanna Lee
	*/

	public abstract class ComponentDirContext extends PartialCompositeDirContext {

	protected ComponentDirContext () {
	_contextType = _COMPONENT;
	}

	// ------ Abstract methods whose implementations are provided by subclass

	/* Equivalent to methods in DirContext */
	protected abstract Attributes c_getAttributes(Name name,
	String[] attrIds,
	Continuation cont)
	throws NamingException;

	protected abstract void c_modifyAttributes(Name name, int mod_op,
	Attributes attrs,
	Continuation cont)
	throws NamingException;

	protected abstract void c_modifyAttributes(Name name,
	ModificationItem[] mods,
	Continuation cont)
	throws NamingException;

	protected abstract void c_bind(Name name, Object obj,
	Attributes attrs,
	Continuation cont)
	throws NamingException;

	protected abstract void c_rebind(Name name, Object obj,
	Attributes attrs,
	Continuation cont)
	throws NamingException;

	protected abstract DirContext c_createSubcontext(Name name,
	Attributes attrs,
	Continuation cont)
	throws NamingException;

	protected abstract NamingEnumeration<SearchResult> c_search(
	Name name,
	Attributes matchingAttributes,
	String[] attributesToReturn,
	Continuation cont)
	throws NamingException;

	protected abstract NamingEnumeration<SearchResult> c_search(
	Name name,
	String filter,
	SearchControls cons,
	Continuation cont)
	throws NamingException;

	protected abstract NamingEnumeration<SearchResult> c_search(
	Name name,
	String filterExpr,
	Object[] filterArgs,
	SearchControls cons,
	Continuation cont)
	throws NamingException;

	protected abstract DirContext c_getSchema(Name name, Continuation cont)
	throws NamingException;

	protected abstract DirContext c_getSchemaClassDefinition(Name name,
	Continuation cont)
	throws NamingException;

	// ------- default implementations of c_*_nns methods from DirContext

	// The following methods are called when the DirContext methods
	// are invoked with a name that has a trailing slash.
	// For naming systems that support implicit nns,
	// the trailing slash signifies the implicit nns.
	// For such naming systems, override these c_*_nns methods.
	//
	// For naming systems that support junctions (explicit nns),
	// the trailing slash is meaningless because a junction does not
	// have an implicit nns. The default implementation here
	// throws a NameNotFoundException for such names.
	// If a context wants to accept a trailing slash as having
	// the same meaning as the same name without a trailing slash,
	// then it should override these c_*_nns methods.

	// See ComponentContext for details.

	protected Attributes c_getAttributes_nns(Name name,
	String[] attrIds,
	Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	return null;
	}

	protected void c_modifyAttributes_nns(Name name,
	int mod_op,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	}

	protected void c_modifyAttributes_nns(Name name,
	ModificationItem[] mods,
	Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	}

	protected void c_bind_nns(Name name,
	Object obj,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	}

	protected void c_rebind_nns(Name name,
	Object obj,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	}

	protected DirContext c_createSubcontext_nns(Name name,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	return null;
	}

	protected NamingEnumeration<SearchResult> c_search_nns(
	Name name,
	Attributes matchingAttributes,
	String[] attributesToReturn,
	Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	return null;
	}

	protected NamingEnumeration<SearchResult> c_search_nns(
	Name name,
	String filter,
	SearchControls cons,
	Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	return null;
	}

	protected NamingEnumeration<SearchResult> c_search_nns(
	Name name,
	String filterExpr,
	Object[] filterArgs,
	SearchControls cons,
	Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	return null;
	}

	protected DirContext c_getSchema_nns(Name name, Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	return null;
	}

	protected DirContext c_getSchemaClassDefinition_nns(Name name, Continuation cont)
	throws NamingException {
	c_processJunction_nns(name, cont);
	return null;
	}

	// ------- implementations of p_ DirContext methods using corresponding
	// ------- DirContext c_ and c_*_nns methods

	/* Implements for abstract methods declared in PartialCompositeDirContext */
	protected Attributes p_getAttributes(Name name,
	String[] attrIds,
	Continuation cont)
	throws NamingException {
	HeadTail res = p_resolveIntermediate(name, cont);
	Attributes answer = null;
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	answer = c_getAttributes_nns(res.getHead(), attrIds, cont);
	break;

	case TERMINAL_COMPONENT:
	answer = c_getAttributes(res.getHead(), attrIds, cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	return answer;
	}

	protected void p_modifyAttributes(Name name, int mod_op,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	HeadTail res = p_resolveIntermediate(name, cont);
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	c_modifyAttributes_nns(res.getHead(), mod_op, attrs, cont);
	break;

	case TERMINAL_COMPONENT:
	c_modifyAttributes(res.getHead(), mod_op, attrs, cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	}
	protected void p_modifyAttributes(Name name,
	ModificationItem[] mods,
	Continuation cont)
	throws NamingException {
	HeadTail res = p_resolveIntermediate(name, cont);
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	c_modifyAttributes_nns(res.getHead(), mods, cont);
	break;

	case TERMINAL_COMPONENT:
	c_modifyAttributes(res.getHead(), mods, cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	}

	protected void p_bind(Name name,
	Object obj,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	HeadTail res = p_resolveIntermediate(name, cont);
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	c_bind_nns(res.getHead(), obj, attrs, cont);
	break;

	case TERMINAL_COMPONENT:
	c_bind(res.getHead(), obj, attrs, cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	}

	protected void p_rebind(Name name, Object obj,
	Attributes attrs, Continuation cont)
	throws NamingException {
	HeadTail res = p_resolveIntermediate(name, cont);
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	c_rebind_nns(res.getHead(), obj, attrs, cont);
	break;

	case TERMINAL_COMPONENT:
	c_rebind(res.getHead(), obj, attrs, cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	}

	protected DirContext p_createSubcontext(Name name,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	HeadTail res = p_resolveIntermediate(name, cont);
	DirContext answer = null;
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	answer = c_createSubcontext_nns(res.getHead(), attrs, cont);
	break;

	case TERMINAL_COMPONENT:
	answer = c_createSubcontext(res.getHead(), attrs, cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	return answer;
	}

	protected NamingEnumeration<SearchResult> p_search(
	Name name,
	Attributes matchingAttributes,
	String[] attributesToReturn,
	Continuation cont)
	throws NamingException {
	HeadTail res = p_resolveIntermediate(name, cont);
	NamingEnumeration<SearchResult> answer = null;
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	answer = c_search_nns(res.getHead(), matchingAttributes,
	attributesToReturn, cont);
	break;

	case TERMINAL_COMPONENT:
	answer = c_search(res.getHead(), matchingAttributes,
	attributesToReturn, cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	return answer;
	}

	protected NamingEnumeration<SearchResult> p_search(Name name,
	String filter,
	SearchControls cons,
	Continuation cont)
	throws NamingException {
	HeadTail res = p_resolveIntermediate(name, cont);
	NamingEnumeration<SearchResult> answer = null;
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	answer = c_search_nns(res.getHead(), filter, cons, cont);
	break;

	case TERMINAL_COMPONENT:
	answer = c_search(res.getHead(), filter, cons, cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	return answer;
	}

	protected NamingEnumeration<SearchResult> p_search(Name name,
	String filterExpr,
	Object[] filterArgs,
	SearchControls cons,
	Continuation cont)
	throws NamingException {
	HeadTail res = p_resolveIntermediate(name, cont);
	NamingEnumeration<SearchResult> answer = null;
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	answer = c_search_nns(res.getHead(),
	filterExpr, filterArgs, cons, cont);
	break;

	case TERMINAL_COMPONENT:
	answer = c_search(res.getHead(), filterExpr, filterArgs, cons, cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	return answer;
	}

	protected DirContext p_getSchema(Name name, Continuation cont)
	throws NamingException {
	DirContext answer = null;
	HeadTail res = p_resolveIntermediate(name, cont);
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	answer = c_getSchema_nns(res.getHead(), cont);
	break;

	case TERMINAL_COMPONENT:
	answer = c_getSchema(res.getHead(), cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	return answer;
	}

	protected DirContext p_getSchemaClassDefinition(Name name, Continuation cont)
	throws NamingException {
	DirContext answer = null;
	HeadTail res = p_resolveIntermediate(name, cont);
	switch (res.getStatus()) {
	case TERMINAL_NNS_COMPONENT:
	answer = c_getSchemaClassDefinition_nns(res.getHead(), cont);
	break;

	case TERMINAL_COMPONENT:
	answer = c_getSchemaClassDefinition(res.getHead(), cont);
	break;

	default:
	/* USE_CONTINUATION */
	/* cont already set or exception thrown */
	break;
	}
	return answer;
	}
	}

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