/* 
 * @(#)SearchCountLimit.java	1.4 00/04/28
 * 
 * Copyright 1997, 1998, 1999 Sun Microsystems, Inc. All Rights
 * Reserved.
 * 
 * Sun grants you ("Licensee") a non-exclusive, royalty free,
 * license to use, modify and redistribute this software in source and
 * binary code form, provided that i) this copyright notice and license
 * appear on all copies of the software; and ii) Licensee does not 
 * utilize the software in a manner which is disparaging to Sun.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE 
 * HEREBY EXCLUDED.  SUN AND ITS LICENSORS SHALL NOT BE LIABLE 
 * FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, 
 * MODIFYING OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN 
 * NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST 
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 * 
 * This software is not designed or intended for use in on-line
 * control of aircraft, air traffic, aircraft navigation or aircraft
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 * maintenance of any nuclear facility. Licensee represents and warrants
 * that it will not use or redistribute the Software for such purposes.  
 */

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

import java.util.Hashtable;

/**
 * Demonstrates how to perform a search and limit the number of
 * results returned.
 *
 * usage: java SearchCountLimit
 */
class SearchCountLimit {
    static int expected = 1;
    public static void printSearchEnumeration(NamingEnumeration namingEnum) {
	int count = 0;
	try {
	    while (namingEnum.hasMore()) {
		SearchResult sr = (SearchResult)namingEnum.next();
		System.out.println(">>>" + sr.getName());
		++count;
	    }
	    System.out.println("number of answers: " + count);
	} catch (SizeLimitExceededException e) {
	    if (count == expected)
		System.out.println("number of answers: " + count);
	    else
		e.printStackTrace();
	} catch (NamingException e) {
	    e.printStackTrace();
	}
    }

    public static void main(String[] args) {

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

	try {
	    // Create initial context
	    DirContext ctx = new InitialDirContext(env);

	    // Set search controls to limit count to 'expected'
	    SearchControls ctls = new SearchControls();
	    ctls.setCountLimit(expected);

	    // Search for objects with those matching attributes
	    NamingEnumeration answer = 
		ctx.search("ou=People","(sn=M*)", ctls );

	    // Print the answer
	    printSearchEnumeration(answer);

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