/*

 * Copyright (c) 2010, 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.

 */

import com.oracle.net.Sdp;

import java.net.*;

import java.io.*;

import java.nio.channels.*;

import java.util.*;

/**

 * Exercise com.oracle.net.Sdp with each IP address plumbed to InfiniBand

 * interfaces listed in a given file.

 */

public class Sanity {

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

        // The file is a list of interfaces to test.

        Scanner s = new Scanner(new File(args[0]));

        try {

            while (s.hasNextLine()) {

                String link = s.nextLine();

                NetworkInterface ni = NetworkInterface.getByName(link);

                if (ni != null) {

                    Enumeration<InetAddress> addrs = ni.getInetAddresses();

                    while (addrs.hasMoreElements()) {

                        InetAddress addr = addrs.nextElement();

                        System.out.format("Testing %s: %s\n", link, addr.getHostAddress());

                        test(addr);

                    }

                }

            }

        } finally {

            s.close();

        }

    }

    static void test(InetAddress addr) throws Exception {

        // Test SocketChannel and ServerSocketChannel

        ServerSocketChannel ssc = Sdp.openServerSocketChannel();

        try {

            ssc.socket().bind(new InetSocketAddress(addr, 0));

            int port = ssc.socket().getLocalPort();

            // SocketChannel.connect (implicit bind)

            SocketChannel client = Sdp.openSocketChannel();

            try {

                client.connect(new InetSocketAddress(addr, port));

                SocketChannel peer = ssc.accept();

                try {

                    testConnection(Channels.newOutputStream(client),

                                   Channels.newInputStream(peer));

                } finally {

                    peer.close();

                }

            } finally {

                client.close();

            }

            // SocketChannel.connect (explicit bind)

            client = Sdp.openSocketChannel();

            try {

                client.socket().bind(new InetSocketAddress(addr, 0));

                client.connect(new InetSocketAddress(addr, port));

                ssc.accept().close();

            } finally {

                client.close();

            }

        } finally {

            ssc.close();

        }

        // Test Socket and ServerSocket

        ServerSocket ss = Sdp.openServerSocket();

        try {

            ss.bind(new InetSocketAddress(addr, 0));

            int port = ss.getLocalPort();

            // Socket.connect (implicit bind)

            Socket s = Sdp.openSocket();

            try {

                s.connect(new InetSocketAddress(addr, port));

                Socket peer = ss.accept();

                try {

                    testConnection(s.getOutputStream(), peer.getInputStream());

                } finally {

                    peer.close();

                }

            } finally {

                s.close();

            }

            // Socket.connect (explicit bind)

            s = Sdp.openSocket();

            try {

                s.bind(new InetSocketAddress(addr, 0));

                s.connect(new InetSocketAddress(addr, port));

                ss.accept().close();

            } finally {

                s.close();

            }

        } finally {

            ss.close();

        }

    }

    static void testConnection(OutputStream out, InputStream in)

        throws IOException

    {

        byte[] msg = "hello".getBytes();

        out.write(msg);

        byte[] ba = new byte[100];

        int nread = 0;

        while (nread < msg.length) {

            int n = in.read(ba);

            if (n < 0)

                throw new IOException("EOF not expected!");

            nread += n;

        }

    }

}