/*

 * Copyright (c) 2018, 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 java.io.IOException;

import java.net.StandardProtocolFamily;

import java.net.ServerSocket;

import java.net.Socket;

import java.net.SocketOption;

import java.net.StandardSocketOptions;

import java.util.ArrayList;

import java.util.List;

import jdk.net.RdmaSockets;

import jdk.net.RdmaSocketOptions;

import jtreg.SkippedException;

/* @test

 * @bug 8195160

 * @summary Test checks that UnsupportedOperationException for unsupported

 *          SOCKET_OPTIONS is thrown by both getOption() and setOption() methods.

 * @requires (os.family == "linux")

 * @requires !vm.graal.enabled

 * @library .. /test/lib

 * @build RsocketTest

 * @run main/othervm UnsupportedOptionsTest

 */

public class UnsupportedOptionsTest {

    private static final List<SocketOption<?>> socketOptions = new ArrayList<>();

    static {

        socketOptions.add(StandardSocketOptions.SO_RCVBUF);

        socketOptions.add(StandardSocketOptions.SO_REUSEADDR);

        socketOptions.add(RdmaSocketOptions.RDMA_SQSIZE);

        socketOptions.add(RdmaSocketOptions.RDMA_RQSIZE);

        socketOptions.add(RdmaSocketOptions.RDMA_INLINE);

    }

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

        if (!RsocketTest.isRsocketAvailable())

            throw new SkippedException("rsocket is not available");

        Socket s = RdmaSockets.openSocket(StandardProtocolFamily.INET);

        ServerSocket ss = RdmaSockets.openServerSocket(

            StandardProtocolFamily.INET);

        for (SocketOption option : socketOptions) {

            if (!s.supportedOptions().contains(option)) {

                testUnsupportedSocketOption(s, option);

            }

            if (!ss.supportedOptions().contains(option)) {

                testUnsupportedSocketOption(ss, option);

            }

        }

    }

    /*

     * Check that UnsupportedOperationException for unsupported option is

     * thrown from both getOption() and setOption() methods.

     */

    private static void testUnsupportedSocketOption(Object socket,

                                                    SocketOption option) {

        testSet(socket, option);

        testGet(socket, option);

    }

    private static void testSet(Object socket, SocketOption option) {

        try {

            setOption(socket, option);

        } catch (UnsupportedOperationException e) {

            System.out.println("UnsupportedOperationException was throw " +

                    "as expected. Socket: " + socket + " Option: " + option);

            return;

        } catch (Exception e) {

            throw new RuntimeException("FAIL. Unexpected exception.", e);

        }

        throw new RuntimeException("FAIL. UnsupportedOperationException " +

                "hasn't been thrown. Socket: " + socket + " Option: " + option);

    }

    private static void testGet(Object socket, SocketOption option) {

        try {

            getOption(socket, option);

        } catch (UnsupportedOperationException e) {

            System.out.println("UnsupportedOperationException was throw " +

                    "as expected. Socket: " + socket + " Option: " + option);

            return;

        } catch (Exception e) {

            throw new RuntimeException("FAIL. Unexpected exception.", e);

        }

        throw new RuntimeException("FAIL. UnsupportedOperationException " +

                "hasn't been thrown. Socket: " + socket + " Option: " + option);

    }

    private static void getOption(Object socket,

                                  SocketOption option) throws IOException {

        if (socket instanceof Socket) {

            ((Socket) socket).getOption(option);

        } else if (socket instanceof ServerSocket) {

            ((ServerSocket) socket).getOption(option);

        } else {

            throw new RuntimeException("Unsupported socket type");

        }

    }

    private static void setOption(Object socket,

                                  SocketOption option) throws IOException {

        if (socket instanceof Socket) {

            ((Socket) socket).setOption(option, null);

        } else if (socket instanceof ServerSocket) {

            ((ServerSocket) socket).setOption(option, null);

        } else {

            throw new RuntimeException("Unsupported socket type");

        }

    }

}