gets a user LDAP dn - Java javax.naming.directory

Java examples for javax.naming.directory:Record

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Description

gets a user LDAP dn

Demo Code

/**//from w  ww  . j av  a 2  s  .com
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2009 Sun Microsystems Inc. All Rights Reserved
 *
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the License). You may not use this file except in
 * compliance with the License.
 *
 * You can obtain a copy of the License at
 * https://opensso.dev.java.net/public/CDDLv1.0.html or
 * opensso/legal/CDDLv1.0.txt
 * See the License for the specific language governing
 * permission and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at opensso/legal/CDDLv1.0.txt.
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * $Id: LDAPUtils.java,v 1.2 2009-08-24 11:37:44 hubertlvg Exp $
 *
 */
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.naming.Context;
import javax.naming.NameNotFoundException;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import javax.naming.directory.BasicAttribute;
import javax.naming.directory.BasicAttributes;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;

public class Main{
    private static final Logger logger = Logger.getLogger(LDAPUtils.class
            .getName());
    /**
     * gets a user dn
     * 
     * @param baseDN
     * @param filter
     * @return the user dn
     * @throws BackendException
     */
    public static String getUserDN(String baseDN, String filter,
            DirContext ctx) throws BackendException {

        NamingEnumeration ne = null;
        String d = null;
        try {
            ne = search(baseDN, filter, null, ctx);
            if (ne != null) {
                SearchResult sr = (SearchResult) ne.next();
                // d = sr.getName() + "," + baseDN;
                d = sr.getNameInNamespace();
            }
        } catch (NamingException e) {
            logger.log(Level.SEVERE, e.getMessage(), e);
        } finally {
            close(ne);
        }
        return d;
    }
    /**
     * Gets a naming enumeration.
     * 
     * @param baseDN
     * @param filter
     * @param returnAttributes
     * @return A naming enumeration.
     * @throws BackendException
     */
    public static NamingEnumeration<SearchResult> search(String baseDN,
            String filter, String[] returnAttributes, DirContext ctx)
            throws BackendException {
        NamingEnumeration<SearchResult> ne = null;
        boolean found = false;

        try {

            SearchControls sc = new SearchControls();
            sc.setReturningAttributes(returnAttributes);
            sc.setSearchScope(SearchControls.SUBTREE_SCOPE);
            ne = ctx.search(baseDN, filter, sc);
            found = ne.hasMore();
            return found ? ne : null;
        } catch (NamingException e) {

            throw new BackendException(e.getMessage());
        } finally {

            // if no records are found close it
            if (!found) {
                close(ne);
            }
        }

    }
    /**
     * Close context.
     * 
     * @param ctx
     */
    public static void close(DirContext ctx) {
        if (ctx == null) {
            return;
        }

        try {
            ctx.close();
        } catch (NamingException ignore) {
            logger.log(Level.SEVERE, ignore.getMessage(), ignore);
        }
    }
    /**
     * Close naming enumeration.
     * 
     * @param ne
     */
    public static void close(NamingEnumeration ne) {
        if (ne == null) {
            return;
        }

        try {
            ne.close();
        } catch (NamingException ignore) {
            logger.log(Level.WARNING, ignore.getMessage(), ignore);
        }
    }
}

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