/*

 * Copyright 2001 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/* @test

 * @summary Unit test for server-socket-channel adaptors

 */

import java.io.*;

import java.net.*;

import java.nio.*;

import java.nio.channels.*;

import java.nio.charset.*;

public class AdaptServerSocket {

    static java.io.PrintStream out = System.out;

    static volatile Exception clientException = null;

    static volatile Thread client = null;

    static void startClient(final int port, final int dally)

        throws Exception

    {

        Thread t = new Thread() {

                public void run() {

                    try {

                        Socket so = new Socket();

                        out.println("client:  " + so);

                        if (dally > 0)

                            Thread.sleep(dally);

                        so.connect(new InetSocketAddress(port));

                        if (Thread.interrupted()) {

                            out.println("client interrupted");

                            so.close();

                            return;

                        }

                        out.println("client:  " + so);

                        int a = so.getInputStream().read();

                        out.println("client:  read " + a);

                        a += 1;

                        so.getOutputStream().write(a);

                        out.println("client:  wrote " + a);

                        so.close();

                    } catch (Exception x) {

                        if (x instanceof InterruptedException)

                            return;

                        clientException = x;

                        x.printStackTrace();

                    }

                }

            };

        t.setDaemon(true);

        t.start();

        client = t;

    }

    static void test(int clientDally, int timeout, boolean shouldTimeout)

        throws Exception

    {

        out.println();

        ServerSocketChannel ssc = ServerSocketChannel.open();

        ServerSocket sso = ssc.socket();

        out.println("created: " + ssc);

        out.println("         " + sso);

        if (timeout != 0)

            sso.setSoTimeout(timeout);

        out.println("timeout: " + sso.getSoTimeout());

        sso.bind(null);

        out.println("bound:   " + ssc);

        out.println("         " + sso);

        startClient(sso.getLocalPort(), clientDally);

        Thread.sleep(10);

        Socket so = null;

        try {

            so = sso.accept();

        } catch (SocketTimeoutException x) {

            if (shouldTimeout)

                out.println("Accept timed out, as expected");

            else

                throw x;

        }

        if (shouldTimeout && (so != null))

            throw new Exception("Accept did not time out");

        if (so != null) {

            int a = 42;

            so.getOutputStream().write(a);

            int b = so.getInputStream().read();

            if (b != a + 1)

                throw new Exception("Read incorrect data");

            out.println("server:  read " + b);

            sso.close();

        }

        client.interrupt();

        client.join();

        if (clientException != null)

            throw clientException;

    }

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

        test(0, 0, false);

        test(50, 500, false);

        test(500, 50, true);

    }

}