/* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  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 Sun Microsystems nor 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. */ import java.util.Hashtable;import java.util.Enumeration;import java.io.IOException;import javax.naming.*;import javax.naming.directory.*;import javax.naming.ldap.*;/** * Shows how a paged search can be performed using the * PagedResultsControl API */class PagedSearch {public static void main(String[] args) {    Hashtable<String, Object> env = new Hashtable<String, Object>(11);    env.put(Context.INITIAL_CONTEXT_FACTORY,	"com.sun.jndi.ldap.LdapCtxFactory");    /* Specify host and port to use for directory service */    env.put(Context.PROVIDER_URL,		"ldap://localhost:389/ou=People,o=JNDITutorial");    try {        LdapContext ctx = new InitialLdapContext(env, null);	// Activate paged results	int pageSize = 5; 	byte[] cookie = null;        ctx.setRequestControls(new Control[]{		new PagedResultsControl(pageSize, Control.NONCRITICAL) });	int total;	do {	    /* perform the search */            NamingEnumeration results =		ctx.search("", "(objectclass=*)", new SearchControls());            /* for each entry print out name + all attrs and values */            while (results != null && results.hasMore()) {		SearchResult entry = (SearchResult) results.next();		System.out.println(entry.getName());	    }	    // Examine the paged results control response	    Control[] controls = ctx.getResponseControls();	    if (controls != null) {		for (int i = 0; i < controls.length; i++) {		    if (controls[i] instanceof PagedResultsResponseControl) {			PagedResultsResponseControl prrc =                         	 (PagedResultsResponseControl)controls[i];			total = prrc.getResultSize();			if (total != 0) {			    System.out.println("***************** END-OF-PAGE " +				"(total : " + total +				") *****************\n");			} else {			    System.out.println("***************** END-OF-PAGE " +			    "(total: unknown) ***************\n");			}			cookie = prrc.getCookie();		    }		}	    } else {		System.out.println("No controls were sent from the server");	    }            // Re-activate paged results            ctx.setRequestControls(new Control[]{		new PagedResultsControl(pageSize, cookie, Control.CRITICAL) });	} while (cookie != null);	ctx.close();    } catch (NamingException e) {        System.err.println("PagedSearch failed.");        e.printStackTrace();    } catch (IOException ie) {        System.err.println("PagedSearch failed.");        ie.printStackTrace();    }}}