1 /*
   2  * Copyright (c) 1999, 2009, 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 
  27 package javax.naming.directory;
  28 
  29 import java.util.Hashtable;
  30 import javax.naming.spi.NamingManager;
  31 import javax.naming.*;
  32 
  33 /**
  34  * This class is the starting context for performing
  35  * directory operations. The documentation in the class description
  36  * of InitialContext (including those for synchronization) apply here.
  37  *
  38  *
  39  * @author Rosanna Lee
  40  * @author Scott Seligman
  41  *
  42  * @see javax.naming.InitialContext
  43  * @since 1.3
  44  */
  45 
  46 public class InitialDirContext extends InitialContext implements DirContext {
  47 
  48     /**
  49      * Constructs an initial DirContext with the option of not
  50      * initializing it.  This may be used by a constructor in
  51      * a subclass when the value of the environment parameter
  52      * is not yet known at the time the {@code InitialDirContext}
  53      * constructor is called.  The subclass's constructor will
  54      * call this constructor, compute the value of the environment,
  55      * and then call {@code init()} before returning.
  56      *
  57      * @param lazy
  58      *          true means do not initialize the initial DirContext; false
  59      *          is equivalent to calling {@code new InitialDirContext()}
  60      * @throws  NamingException if a naming exception is encountered
  61      *
  62      * @see InitialContext#init(Hashtable)
  63      * @since 1.3
  64      */
  65     protected InitialDirContext(boolean lazy) throws NamingException {
  66         super(lazy);
  67     }
  68 
  69     /**
  70      * Constructs an initial DirContext.
  71      * No environment properties are supplied.
  72      * Equivalent to {@code new InitialDirContext(null)}.
  73      *
  74      * @throws  NamingException if a naming exception is encountered
  75      *
  76      * @see #InitialDirContext(Hashtable)
  77      */
  78     public InitialDirContext() throws NamingException {
  79         super();
  80     }
  81 
  82     /**
  83      * Constructs an initial DirContext using the supplied environment.
  84      * Environment properties are discussed in the
  85      * {@code javax.naming.InitialContext} class description.
  86      *
  87      * <p> This constructor will not modify {@code environment}
  88      * or save a reference to it, but may save a clone.
  89      * Caller should not modify mutable keys and values in
  90      * {@code environment} after it has been passed to the constructor.
  91      *
  92      * @param environment
  93      *          environment used to create the initial DirContext.
  94      *          Null indicates an empty environment.
  95      *
  96      * @throws  NamingException if a naming exception is encountered
  97      */
  98     public InitialDirContext(Hashtable<?,?> environment)
  99         throws NamingException
 100     {
 101         super(environment);
 102     }
 103 
 104     private DirContext getURLOrDefaultInitDirCtx(String name)
 105             throws NamingException {
 106         Context answer = getURLOrDefaultInitCtx(name);
 107         if (!(answer instanceof DirContext)) {
 108             if (answer == null) {
 109                 throw new NoInitialContextException();
 110             } else {
 111                 throw new NotContextException(
 112                     "Not an instance of DirContext");
 113             }
 114         }
 115         return (DirContext)answer;
 116     }
 117 
 118     private DirContext getURLOrDefaultInitDirCtx(Name name)
 119             throws NamingException {
 120         Context answer = getURLOrDefaultInitCtx(name);
 121         if (!(answer instanceof DirContext)) {
 122             if (answer == null) {
 123                 throw new NoInitialContextException();
 124             } else {
 125                 throw new NotContextException(
 126                     "Not an instance of DirContext");
 127             }
 128         }
 129         return (DirContext)answer;
 130     }
 131 
 132 // DirContext methods
 133 // Most Javadoc is deferred to the DirContext interface.
 134 
 135     public Attributes getAttributes(String name)
 136             throws NamingException {
 137         return getAttributes(name, null);
 138     }
 139 
 140     public Attributes getAttributes(String name, String[] attrIds)
 141             throws NamingException {
 142         return getURLOrDefaultInitDirCtx(name).getAttributes(name, attrIds);
 143     }
 144 
 145     public Attributes getAttributes(Name name)
 146             throws NamingException {
 147         return getAttributes(name, null);
 148     }
 149 
 150     public Attributes getAttributes(Name name, String[] attrIds)
 151             throws NamingException {
 152         return getURLOrDefaultInitDirCtx(name).getAttributes(name, attrIds);
 153     }
 154 
 155     public void modifyAttributes(String name, int mod_op, Attributes attrs)
 156             throws NamingException {
 157         getURLOrDefaultInitDirCtx(name).modifyAttributes(name, mod_op, attrs);
 158     }
 159 
 160     public void modifyAttributes(Name name, int mod_op, Attributes attrs)
 161             throws NamingException  {
 162         getURLOrDefaultInitDirCtx(name).modifyAttributes(name, mod_op, attrs);
 163     }
 164 
 165     public void modifyAttributes(String name, ModificationItem[] mods)
 166             throws NamingException  {
 167         getURLOrDefaultInitDirCtx(name).modifyAttributes(name, mods);
 168     }
 169 
 170     public void modifyAttributes(Name name, ModificationItem[] mods)
 171             throws NamingException  {
 172         getURLOrDefaultInitDirCtx(name).modifyAttributes(name, mods);
 173     }
 174 
 175     public void bind(String name, Object obj, Attributes attrs)
 176             throws NamingException  {
 177         getURLOrDefaultInitDirCtx(name).bind(name, obj, attrs);
 178     }
 179 
 180     public void bind(Name name, Object obj, Attributes attrs)
 181             throws NamingException  {
 182         getURLOrDefaultInitDirCtx(name).bind(name, obj, attrs);
 183     }
 184 
 185     public void rebind(String name, Object obj, Attributes attrs)
 186             throws NamingException  {
 187         getURLOrDefaultInitDirCtx(name).rebind(name, obj, attrs);
 188     }
 189 
 190     public void rebind(Name name, Object obj, Attributes attrs)
 191             throws NamingException  {
 192         getURLOrDefaultInitDirCtx(name).rebind(name, obj, attrs);
 193     }
 194 
 195     public DirContext createSubcontext(String name, Attributes attrs)
 196             throws NamingException  {
 197         return getURLOrDefaultInitDirCtx(name).createSubcontext(name, attrs);
 198     }
 199 
 200     public DirContext createSubcontext(Name name, Attributes attrs)
 201             throws NamingException  {
 202         return getURLOrDefaultInitDirCtx(name).createSubcontext(name, attrs);
 203     }
 204 
 205     public DirContext getSchema(String name) throws NamingException {
 206         return getURLOrDefaultInitDirCtx(name).getSchema(name);
 207     }
 208 
 209     public DirContext getSchema(Name name) throws NamingException {
 210         return getURLOrDefaultInitDirCtx(name).getSchema(name);
 211     }
 212 
 213     public DirContext getSchemaClassDefinition(String name)
 214             throws NamingException {
 215         return getURLOrDefaultInitDirCtx(name).getSchemaClassDefinition(name);
 216     }
 217 
 218     public DirContext getSchemaClassDefinition(Name name)
 219             throws NamingException {
 220         return getURLOrDefaultInitDirCtx(name).getSchemaClassDefinition(name);
 221     }
 222 
 223 // -------------------- search operations
 224 
 225     public NamingEnumeration<SearchResult>
 226         search(String name, Attributes matchingAttributes)
 227         throws NamingException
 228     {
 229         return getURLOrDefaultInitDirCtx(name).search(name, matchingAttributes);
 230     }
 231 
 232     public NamingEnumeration<SearchResult>
 233         search(Name name, Attributes matchingAttributes)
 234         throws NamingException
 235     {
 236         return getURLOrDefaultInitDirCtx(name).search(name, matchingAttributes);
 237     }
 238 
 239     public NamingEnumeration<SearchResult>
 240         search(String name,
 241                Attributes matchingAttributes,
 242                String[] attributesToReturn)
 243         throws NamingException
 244     {
 245         return getURLOrDefaultInitDirCtx(name).search(name,
 246                                                       matchingAttributes,
 247                                                       attributesToReturn);
 248     }
 249 
 250     public NamingEnumeration<SearchResult>
 251         search(Name name,
 252                Attributes matchingAttributes,
 253                String[] attributesToReturn)
 254         throws NamingException
 255     {
 256         return getURLOrDefaultInitDirCtx(name).search(name,
 257                                             matchingAttributes,
 258                                             attributesToReturn);
 259     }
 260 
 261     public NamingEnumeration<SearchResult>
 262         search(String name,
 263                String filter,
 264                SearchControls cons)
 265         throws NamingException
 266     {
 267         return getURLOrDefaultInitDirCtx(name).search(name, filter, cons);
 268     }
 269 
 270     public NamingEnumeration<SearchResult>
 271         search(Name name,
 272                String filter,
 273                SearchControls cons)
 274         throws NamingException
 275     {
 276         return getURLOrDefaultInitDirCtx(name).search(name, filter, cons);
 277     }
 278 
 279     public NamingEnumeration<SearchResult>
 280         search(String name,
 281                String filterExpr,
 282                Object[] filterArgs,
 283                SearchControls cons)
 284         throws NamingException
 285     {
 286         return getURLOrDefaultInitDirCtx(name).search(name, filterExpr,
 287                                                       filterArgs, cons);
 288     }
 289 
 290     public NamingEnumeration<SearchResult>
 291         search(Name name,
 292                String filterExpr,
 293                Object[] filterArgs,
 294                SearchControls cons)
 295         throws NamingException
 296     {
 297         return getURLOrDefaultInitDirCtx(name).search(name, filterExpr,
 298                                                       filterArgs, cons);
 299     }
 300 }