1 /*
   2  * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.jndi.toolkit.ctx;
  27 
  28 import javax.naming.*;
  29 import javax.naming.directory.*;
  30 import javax.naming.spi.ResolveResult;
  31 
  32 /**
  33  * Direct subclasses of AtomicDirContext must provide implementations for
  34  * the abstract a_ DirContext methods, and override the a_ Context methods
  35  * (which are no longer abstract because they have been overriden by
  36  * PartialCompositeDirContext with dummy implementations).
  37  *
  38  * If the subclass implements the notion of implicit nns,
  39  * it must override the a_*_nns DirContext and Context methods as well.
  40  *
  41  * @author Rosanna Lee
  42  *
  43  */
  44 
  45 public abstract class AtomicDirContext extends ComponentDirContext {
  46 
  47     protected AtomicDirContext() {
  48         _contextType = _ATOMIC;
  49     }
  50 
  51 // ------ Abstract methods whose implementations come from subclass
  52 
  53     protected abstract Attributes a_getAttributes(String name, String[] attrIds,
  54                                                     Continuation cont)
  55         throws NamingException;
  56 
  57     protected abstract void a_modifyAttributes(String name, int mod_op,
  58                                                Attributes attrs,
  59                                                Continuation cont)
  60         throws NamingException;
  61 
  62     protected abstract void a_modifyAttributes(String name,
  63                                                ModificationItem[] mods,
  64                                                Continuation cont)
  65         throws NamingException;
  66 
  67     protected abstract void a_bind(String name, Object obj,
  68                                    Attributes attrs,
  69                                    Continuation cont)
  70         throws NamingException;
  71 
  72     protected abstract void a_rebind(String name, Object obj,
  73                                      Attributes attrs,
  74                                      Continuation cont)
  75         throws NamingException;
  76 
  77     protected abstract DirContext a_createSubcontext(String name,
  78                                                     Attributes attrs,
  79                                                     Continuation cont)
  80         throws NamingException;
  81 
  82     protected abstract NamingEnumeration a_search(Attributes matchingAttributes,
  83                                                   String[] attributesToReturn,
  84                                                   Continuation cont)
  85         throws NamingException;
  86 
  87     protected abstract NamingEnumeration a_search(String name,
  88                                                   String filterExpr,
  89                                                   Object[] filterArgs,
  90                                                   SearchControls cons, Continuation cont)
  91         throws NamingException;
  92 
  93     protected abstract NamingEnumeration a_search(String name,
  94                                                   String filter,
  95                                                   SearchControls cons, Continuation cont)
  96         throws NamingException;
  97 
  98     protected abstract DirContext a_getSchema(Continuation cont)
  99         throws NamingException;
 100 
 101     protected abstract DirContext a_getSchemaClassDefinition(Continuation cont)
 102         throws NamingException;
 103 
 104 // ------ Methods that need to be overridden by subclass
 105 
 106     //  default implementations of a_*_nns methods
 107 
 108     // The following methods are called when the DirContext methods
 109     // are invoked with a name that has a trailing slash.
 110     // For naming systems that support implicit nns,
 111     // the trailing slash signifies the implicit nns.
 112     // For such naming systems, override these a_*_nns methods.
 113     //
 114     // For naming systems that support junctions (explicit nns),
 115     // the trailing slash is meaningless because a junction does not
 116     // have an implicit nns.  The default implementation here
 117     // throws a NameNotFoundException for such names.
 118     // If a context wants to accept a trailing slash as having
 119     // the same meaning as the same name without a trailing slash,
 120     // then it should override these a_*_nns methods.
 121 
 122     protected Attributes a_getAttributes_nns(String name,
 123                                                String[] attrIds,
 124                                                Continuation cont)
 125         throws NamingException  {
 126             a_processJunction_nns(name, cont);
 127             return null;
 128         }
 129 
 130     protected void a_modifyAttributes_nns(String name, int mod_op,
 131                                           Attributes attrs,
 132                                           Continuation cont)
 133         throws NamingException {
 134             a_processJunction_nns(name, cont);
 135         }
 136 
 137     protected void a_modifyAttributes_nns(String name,
 138                                           ModificationItem[] mods,
 139                                           Continuation cont)
 140         throws NamingException {
 141             a_processJunction_nns(name, cont);
 142         }
 143 
 144     protected void a_bind_nns(String name, Object obj,
 145                               Attributes attrs,
 146                               Continuation cont)
 147         throws NamingException  {
 148             a_processJunction_nns(name, cont);
 149         }
 150 
 151     protected void a_rebind_nns(String name, Object obj,
 152                                 Attributes attrs,
 153                                 Continuation cont)
 154         throws NamingException  {
 155             a_processJunction_nns(name, cont);
 156         }
 157 
 158     protected DirContext a_createSubcontext_nns(String name,
 159                                                Attributes attrs,
 160                                                Continuation cont)
 161         throws NamingException  {
 162             a_processJunction_nns(name, cont);
 163             return null;
 164         }
 165 
 166     protected NamingEnumeration a_search_nns(Attributes matchingAttributes,
 167                                              String[] attributesToReturn,
 168                                              Continuation cont)
 169         throws NamingException {
 170             a_processJunction_nns(cont);
 171             return null;
 172         }
 173 
 174     protected NamingEnumeration a_search_nns(String name,
 175                                              String filterExpr,
 176                                              Object[] filterArgs,
 177                                              SearchControls cons,
 178                                              Continuation cont)
 179         throws NamingException {
 180             a_processJunction_nns(name, cont);
 181             return null;
 182         }
 183 
 184     protected NamingEnumeration a_search_nns(String name,
 185                                              String filter,
 186                                              SearchControls cons,
 187                                              Continuation cont)
 188         throws NamingException  {
 189             a_processJunction_nns(name, cont);
 190             return null;
 191         }
 192 
 193     protected DirContext a_getSchema_nns(Continuation cont) throws NamingException {
 194         a_processJunction_nns(cont);
 195         return null;
 196     }
 197 
 198     protected DirContext a_getSchemaDefinition_nns(Continuation cont)
 199         throws NamingException {
 200             a_processJunction_nns(cont);
 201             return null;
 202         }
 203 
 204 // ------- implementations of c_ DirContext methods using corresponding
 205 // ------- a_ and a_*_nns methods
 206 
 207     protected Attributes c_getAttributes(Name name, String[] attrIds,
 208                                            Continuation cont)
 209         throws NamingException  {
 210             if (resolve_to_penultimate_context(name, cont))
 211                 return a_getAttributes(name.toString(), attrIds, cont);
 212             return null;
 213         }
 214 
 215     protected void c_modifyAttributes(Name name, int mod_op,
 216                                       Attributes attrs, Continuation cont)
 217         throws NamingException {
 218             if (resolve_to_penultimate_context(name, cont))
 219                 a_modifyAttributes(name.toString(), mod_op, attrs, cont);
 220         }
 221 
 222     protected void c_modifyAttributes(Name name, ModificationItem[] mods,
 223                                       Continuation cont)
 224         throws NamingException {
 225             if (resolve_to_penultimate_context(name, cont))
 226                 a_modifyAttributes(name.toString(), mods, cont);
 227         }
 228 
 229     protected void c_bind(Name name, Object obj,
 230                           Attributes attrs, Continuation cont)
 231         throws NamingException  {
 232             if (resolve_to_penultimate_context(name, cont))
 233                 a_bind(name.toString(), obj, attrs, cont);
 234         }
 235 
 236     protected void c_rebind(Name name, Object obj,
 237                             Attributes attrs, Continuation cont)
 238         throws NamingException  {
 239             if (resolve_to_penultimate_context(name, cont))
 240                 a_rebind(name.toString(), obj, attrs, cont);
 241         }
 242 
 243     protected DirContext c_createSubcontext(Name name,
 244                                            Attributes attrs,
 245                                            Continuation cont)
 246         throws NamingException  {
 247             if (resolve_to_penultimate_context(name, cont))
 248                 return a_createSubcontext(name.toString(),
 249                                           attrs, cont);
 250             return null;
 251         }
 252 
 253     protected NamingEnumeration c_search(Name name,
 254                                          Attributes matchingAttributes,
 255                                          String[] attributesToReturn,
 256                                          Continuation cont)
 257         throws NamingException  {
 258             if (resolve_to_context(name, cont))
 259                 return a_search(matchingAttributes, attributesToReturn, cont);
 260             return null;
 261         }
 262 
 263     protected NamingEnumeration c_search(Name name,
 264                                          String filter,
 265                                          SearchControls cons, Continuation cont)
 266         throws NamingException {
 267             if (resolve_to_penultimate_context(name, cont))
 268                 return a_search(name.toString(), filter, cons, cont);
 269             return null;
 270         }
 271 
 272     protected NamingEnumeration c_search(Name name,
 273                                          String filterExpr,
 274                                          Object[] filterArgs,
 275                                          SearchControls cons, Continuation cont)
 276         throws NamingException  {
 277             if (resolve_to_penultimate_context(name, cont))
 278                 return a_search(name.toString(), filterExpr, filterArgs, cons, cont);
 279             return null;
 280         }
 281 
 282     protected DirContext c_getSchema(Name name, Continuation cont)
 283         throws NamingException  {
 284             if (resolve_to_context(name, cont))
 285                 return a_getSchema(cont);
 286             return null;
 287         }
 288 
 289     protected DirContext c_getSchemaClassDefinition(Name name, Continuation cont)
 290         throws NamingException  {
 291             if (resolve_to_context(name, cont))
 292                 return a_getSchemaClassDefinition(cont);
 293             return null;
 294         }
 295 
 296     /* equivalent to methods in DirContext interface for nns */
 297 
 298     protected Attributes c_getAttributes_nns(Name name, String[] attrIds,
 299                                            Continuation cont)
 300         throws NamingException  {
 301             if (resolve_to_penultimate_context_nns(name, cont))
 302                 return a_getAttributes_nns(name.toString(), attrIds, cont);
 303             return null;
 304         }
 305 
 306     protected void c_modifyAttributes_nns(Name name, int mod_op,
 307                                           Attributes attrs, Continuation cont)
 308         throws NamingException {
 309             if (resolve_to_penultimate_context_nns(name, cont))
 310                 a_modifyAttributes_nns(name.toString(), mod_op, attrs, cont);
 311         }
 312 
 313     protected void c_modifyAttributes_nns(Name name, ModificationItem[] mods,
 314                                       Continuation cont)
 315         throws NamingException {
 316             if (resolve_to_penultimate_context_nns(name, cont))
 317                 a_modifyAttributes_nns(name.toString(), mods, cont);
 318         }
 319 
 320     protected void c_bind_nns(Name name, Object obj,
 321                               Attributes attrs, Continuation cont)
 322         throws NamingException  {
 323             if (resolve_to_penultimate_context_nns(name, cont))
 324                 a_bind_nns(name.toString(), obj, attrs, cont);
 325         }
 326 
 327     protected void c_rebind_nns(Name name, Object obj,
 328                                 Attributes attrs, Continuation cont)
 329         throws NamingException  {
 330             if (resolve_to_penultimate_context_nns(name, cont))
 331                 a_rebind_nns(name.toString(), obj, attrs, cont);
 332         }
 333 
 334     protected DirContext c_createSubcontext_nns(Name name,
 335                                                Attributes attrs,
 336                                                Continuation cont)
 337         throws NamingException  {
 338             if (resolve_to_penultimate_context_nns(name, cont))
 339                 return a_createSubcontext_nns(name.toString(), attrs, cont);
 340             return null;
 341         }
 342 
 343     protected NamingEnumeration c_search_nns(Name name,
 344                                          Attributes matchingAttributes,
 345                                          String[] attributesToReturn,
 346                                          Continuation cont)
 347         throws NamingException  {
 348             resolve_to_nns_and_continue(name, cont);
 349             return null;
 350         }
 351 
 352     protected NamingEnumeration c_search_nns(Name name,
 353                                          String filter,
 354                                          SearchControls cons, Continuation cont)
 355         throws NamingException {
 356             if (resolve_to_penultimate_context_nns(name, cont))
 357                 return a_search_nns(name.toString(), filter, cons, cont);
 358             return null;
 359         }
 360 
 361     protected NamingEnumeration c_search_nns(Name name,
 362                                              String filterExpr,
 363                                              Object[] filterArgs,
 364                                              SearchControls cons,
 365                                              Continuation cont)
 366         throws NamingException  {
 367             if (resolve_to_penultimate_context_nns(name, cont))
 368                 return a_search_nns(name.toString(), filterExpr, filterArgs,
 369                                     cons, cont);
 370             return null;
 371         }
 372 
 373     protected DirContext c_getSchema_nns(Name name, Continuation cont)
 374         throws NamingException  {
 375             resolve_to_nns_and_continue(name, cont);
 376             return null;
 377         }
 378 
 379     protected DirContext c_getSchemaClassDefinition_nns(Name name, Continuation cont)
 380         throws NamingException  {
 381             resolve_to_nns_and_continue(name, cont);
 382             return null;
 383         }
 384 }