/*

 * Copyright (c) 2001, 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

 * @summary Test nonblocking connect and finishConnect

 * @bug 4457776

 * @library ..

 */

import java.io.*;

import java.net.*;

import java.nio.*;

import java.nio.channels.*;

import java.nio.channels.spi.SelectorProvider;

import java.nio.charset.*;

import java.util.*;

/**

 * Typically there would be more than one channel registered to select

 * on, this test is just a very simple version with only one channel

 * registered for the connectSelector.

 */

public class BasicConnect {

    static final int PORT = 7;          // echo

    static final String HOST = TestUtil.HOST;

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

        Selector connectSelector =

            SelectorProvider.provider().openSelector();

        InetSocketAddress isa

            = new InetSocketAddress(InetAddress.getByName(HOST), PORT);

        SocketChannel sc = SocketChannel.open();

        sc.configureBlocking(false);

        boolean result = sc.connect(isa);

        while (!result) {

            SelectionKey connectKey = sc.register(connectSelector,

                                                  SelectionKey.OP_CONNECT);

            int keysAdded = connectSelector.select();

            if (keysAdded > 0) {

                Set readyKeys = connectSelector.selectedKeys();

                Iterator i = readyKeys.iterator();

                while (i.hasNext()) {

                    SelectionKey sk = (SelectionKey)i.next();

                    i.remove();

                    SocketChannel nextReady = (SocketChannel)sk.channel();

                    result = nextReady.finishConnect();

                    if (result)

                        sk.cancel();

                }

            }

        }

        byte[] bs = new byte[] { (byte)0xca, (byte)0xfe,

                                 (byte)0xba, (byte)0xbe };

        ByteBuffer bb = ByteBuffer.wrap(bs);

        sc.configureBlocking(true);

        sc.write(bb);

        bb.rewind();

        ByteBuffer bb2 = ByteBuffer.allocateDirect(100);

        int n = sc.read(bb2);

        bb2.flip();

        sc.close();

        connectSelector.close();

        if (!bb.equals(bb2))

            throw new Exception("Echoed bytes incorrect: Sent "

                                + bb + ", got " + bb2);

    }

}