Demonstrates how to make modifications to an object's attributes. - Java JNDI

Java examples for JNDI:Context

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Description

Demonstrates how to make modifications to an object's attributes.

Demo Code

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

import java.util.Hashtable;

/**/*from w ww  .j a  va 2 s .  c o  m*/
 * Demonstrates how to make modifications to an object's attributes.
 * It remove an attribute, adds an attribute value, and replaces
 * an attribute value.
 * After making the modifications, it replaces the object's attributes
 * with its original attributes.
 *
 * usage: java ModAttrs
 */

class ModAttrs {
    public static void main(String[] args) {

        // Set up the environment for creating the initial context
        Hashtable<String, Object> env = new Hashtable<String, Object>(11);
        env.put(Context.INITIAL_CONTEXT_FACTORY,
                "com.sun.jndi.ldap.LdapCtxFactory");
        env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");

        try {
            // Create the initial context
            DirContext ctx = new InitialDirContext(env);
            String name = "cn=Ted Geisel, ou=People";

            // Save original attributes
            Attributes orig = ctx.getAttributes(name, new String[] {
                    "mail", "telephonenumber", "jpegphoto" });

            // Specify the changes to make
            ModificationItem[] mods = new ModificationItem[3];

            // Replace the "mail" attribute with a new value
            mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE,
                    new BasicAttribute("mail", "geisel@wizards.com"));

            // Add additional value to "telephonenumber"
            mods[1] = new ModificationItem(
                    DirContext.ADD_ATTRIBUTE,
                    new BasicAttribute("telephonenumber", "+1 555 555 5555"));

            // Remove the "jpegphoto" attribute
            mods[2] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE,
                    new BasicAttribute("jpegphoto"));

            // Perform the requested modifications on the named object
            ctx.modifyAttributes(name, mods);

            // Check attributes
            System.out.println("**** new attributes *****");
            printAttrs(ctx.getAttributes(name));

            // Revert changes
            ctx.modifyAttributes(name, DirContext.REPLACE_ATTRIBUTE, orig);

            // Check that the attributes got restored
            System.out
                    .println("**** reverted to original attributes *****");
            printAttrs(ctx.getAttributes(name));

            // Close the context when we're done
            ctx.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    static void printAttrs(Attributes attrs) {
        if (attrs == null) {
            System.out.println("No attributes");
        } else {
            /* Print each attribute */
            try {
                for (NamingEnumeration ae = attrs.getAll(); ae.hasMore();) {
                    Attribute attr = (Attribute) ae.next();
                    System.out.println("attribute: " + attr.getID());

                    /* print each value */
                    for (NamingEnumeration e = attr.getAll(); e.hasMore(); System.out
                            .println("value: " + e.next()))
                        ;
                }
            } catch (NamingException e) {
                e.printStackTrace();
            }
        }
    }

}

/*
 * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Oracle or the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

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