Java example source code file (NoWaitForReplyTest.java)

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Java - Java tags/keywords

dummyserver, exception, failed, hashtable, initialdircontext, inputstream, ioexception, naming, namingenumeration, namingexception, net, network, nowaitforreplytest, searchcontrols, serversocket, test, thread, util

The NoWaitForReplyTest.java Java example source code

/*
 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 * @test
 * @bug 6748156
 * @summary add an new JNDI property to control the boolean flag WaitForReply
 */

import java.net.Socket;
import java.net.ServerSocket;
import java.io.*;
import javax.naming.*;
import javax.naming.directory.*;
import java.util.Hashtable;

public class NoWaitForReplyTest {

    public static void main(String[] args) throws Exception {

        boolean passed = false;

        // start the LDAP server
        DummyServer ldapServer = new DummyServer();
        ldapServer.start();

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

        // Wait up to 10 seconds for a response from the LDAP server
        env.put("com.sun.jndi.ldap.read.timeout", "10000");

        // Don't wait until the first search reply is received
        env.put("com.sun.jndi.ldap.search.waitForReply", "false");

        // Send the LDAP search request without first authenticating (no bind)
        env.put("java.naming.ldap.version", "3");


        try {

            // Create initial context
            System.out.println("Client: connecting to the server");
            DirContext ctx = new InitialDirContext(env);

            SearchControls scl = new SearchControls();
            scl.setSearchScope(SearchControls.SUBTREE_SCOPE);
            System.out.println("Client: performing search");
            NamingEnumeration answer =
            ctx.search("ou=People,o=JNDITutorial", "(objectClass=*)", scl);

            // Server will never reply: either we waited in the call above until
            // the timeout (fail) or we did not wait and reached here (pass).
            passed = true;
            System.out.println("Client: did not wait until first reply");

            // Close the context when we're done
            ctx.close();

        } catch (NamingException e) {
            // timeout (ignore)
        }
        ldapServer.interrupt();

        if (!passed) {
            throw new Exception(
                "Test FAILED: should not have waited until first search reply");
        }
        System.out.println("Test PASSED");
    }

    static class DummyServer extends Thread {

        private final ServerSocket serverSocket;

        DummyServer() throws IOException {
            this.serverSocket = new ServerSocket(0);
            System.out.println("Server: listening on port " + serverSocket.getLocalPort());
        }

        public int getPortNumber() {
            return serverSocket.getLocalPort();
        }

        public void run() {
            try (Socket socket = serverSocket.accept()) {
                System.out.println("Server: accepted a connection");
                InputStream in = socket.getInputStream();

                while (!isInterrupted()) {
                   in.skip(in.available());
                }

            } catch (Exception e) {
                // ignore

            } finally {
                System.out.println("Server: shutting down");
                try {
                    serverSocket.close();
                } catch (IOException e) {
                    // ignore
                }
            }
        }
    }
}