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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 AtomicDirContext must provide implementations for
	* the abstract a_ DirContext methods, and override the a_ Context methods
	* (which are no longer abstract because they have been overriden by
	* PartialCompositeDirContext with dummy implementations).
	*
	* If the subclass implements the notion of implicit nns,
	* it must override the a_*_nns DirContext and Context methods as well.
	*
	* @author Rosanna Lee
	*
	*/

	public abstract class AtomicDirContext extends ComponentDirContext {

	protected AtomicDirContext() {
	_contextType = _ATOMIC;
	}

	// ------ Abstract methods whose implementations come from subclass

	protected abstract Attributes a_getAttributes(String name, String[] attrIds,
	Continuation cont)
	throws NamingException;

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

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

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

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

	protected abstract DirContext a_createSubcontext(String name,
	Attributes attrs,
	Continuation cont)
	throws NamingException;

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

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

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

	protected abstract DirContext a_getSchema(Continuation cont)
	throws NamingException;

	protected abstract DirContext a_getSchemaClassDefinition(Continuation cont)
	throws NamingException;

	// ------ Methods that need to be overridden by subclass

	// default implementations of a_*_nns methods

	// 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 a_*_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 a_*_nns methods.

	protected Attributes a_getAttributes_nns(String name,
	String[] attrIds,
	Continuation cont)
	throws NamingException {
	a_processJunction_nns(name, cont);
	return null;
	}

	protected void a_modifyAttributes_nns(String name, int mod_op,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	a_processJunction_nns(name, cont);
	}

	protected void a_modifyAttributes_nns(String name,
	ModificationItem[] mods,
	Continuation cont)
	throws NamingException {
	a_processJunction_nns(name, cont);
	}

	protected void a_bind_nns(String name, Object obj,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	a_processJunction_nns(name, cont);
	}

	protected void a_rebind_nns(String name, Object obj,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	a_processJunction_nns(name, cont);
	}

	protected DirContext a_createSubcontext_nns(String name,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	a_processJunction_nns(name, cont);
	return null;
	}

	protected NamingEnumeration<SearchResult> a_search_nns(
	Attributes matchingAttributes,
	String[] attributesToReturn,
	Continuation cont)
	throws NamingException {
	a_processJunction_nns(cont);
	return null;
	}

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

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

	protected DirContext a_getSchema_nns(Continuation cont) throws NamingException {
	a_processJunction_nns(cont);
	return null;
	}

	protected DirContext a_getSchemaDefinition_nns(Continuation cont)
	throws NamingException {
	a_processJunction_nns(cont);
	return null;
	}

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

	protected Attributes c_getAttributes(Name name, String[] attrIds,
	Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context(name, cont))
	return a_getAttributes(name.toString(), attrIds, cont);
	return null;
	}

	protected void c_modifyAttributes(Name name, int mod_op,
	Attributes attrs, Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context(name, cont))
	a_modifyAttributes(name.toString(), mod_op, attrs, cont);
	}

	protected void c_modifyAttributes(Name name, ModificationItem[] mods,
	Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context(name, cont))
	a_modifyAttributes(name.toString(), mods, cont);
	}

	protected void c_bind(Name name, Object obj,
	Attributes attrs, Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context(name, cont))
	a_bind(name.toString(), obj, attrs, cont);
	}

	protected void c_rebind(Name name, Object obj,
	Attributes attrs, Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context(name, cont))
	a_rebind(name.toString(), obj, attrs, cont);
	}

	protected DirContext c_createSubcontext(Name name,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context(name, cont))
	return a_createSubcontext(name.toString(),
	attrs, cont);
	return null;
	}

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

	protected NamingEnumeration<SearchResult> c_search(Name name,
	String filter,
	SearchControls cons,
	Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context(name, cont))
	return a_search(name.toString(), filter, cons, cont);
	return null;
	}

	protected NamingEnumeration<SearchResult> c_search(Name name,
	String filterExpr,
	Object[] filterArgs,
	SearchControls cons,
	Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context(name, cont))
	return a_search(name.toString(), filterExpr, filterArgs, cons, cont);
	return null;
	}

	protected DirContext c_getSchema(Name name, Continuation cont)
	throws NamingException {
	if (resolve_to_context(name, cont))
	return a_getSchema(cont);
	return null;
	}

	protected DirContext c_getSchemaClassDefinition(Name name, Continuation cont)
	throws NamingException {
	if (resolve_to_context(name, cont))
	return a_getSchemaClassDefinition(cont);
	return null;
	}

	/* equivalent to methods in DirContext interface for nns */

	protected Attributes c_getAttributes_nns(Name name, String[] attrIds,
	Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context_nns(name, cont))
	return a_getAttributes_nns(name.toString(), attrIds, cont);
	return null;
	}

	protected void c_modifyAttributes_nns(Name name, int mod_op,
	Attributes attrs, Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context_nns(name, cont))
	a_modifyAttributes_nns(name.toString(), mod_op, attrs, cont);
	}

	protected void c_modifyAttributes_nns(Name name, ModificationItem[] mods,
	Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context_nns(name, cont))
	a_modifyAttributes_nns(name.toString(), mods, cont);
	}

	protected void c_bind_nns(Name name, Object obj,
	Attributes attrs, Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context_nns(name, cont))
	a_bind_nns(name.toString(), obj, attrs, cont);
	}

	protected void c_rebind_nns(Name name, Object obj,
	Attributes attrs, Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context_nns(name, cont))
	a_rebind_nns(name.toString(), obj, attrs, cont);
	}

	protected DirContext c_createSubcontext_nns(Name name,
	Attributes attrs,
	Continuation cont)
	throws NamingException {
	if (resolve_to_penultimate_context_nns(name, cont))
	return a_createSubcontext_nns(name.toString(), attrs, cont);
	return null;
	}

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

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

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

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

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

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