jdk/test/java/nio/channels/Selector/ByteServer.java
author alanb
Sat, 14 Dec 2013 09:27:12 +0000
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parent 7668 d4a77089c587
permissions -rw-r--r--
8027212: java/nio/channels/Selector/SelectAfterRead.java fails intermittently Reviewed-by: chegar, ewang
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/*
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 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/**
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 * Utility class for tests. A simple "in-thread" server to accept connections
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 * and write bytes.
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 * @author kladko
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 */
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import java.net.Socket;
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import java.net.ServerSocket;
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import java.net.SocketAddress;
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import java.net.InetSocketAddress;
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import java.io.IOException;
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import java.io.Closeable;
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public class ByteServer implements Closeable {
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    private final ServerSocket ss;
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    private Socket s;
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    ByteServer() throws IOException {
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        this.ss = new ServerSocket(0);
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    }
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    SocketAddress address() {
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        return new InetSocketAddress(ss.getInetAddress(), ss.getLocalPort());
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    }
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    void acceptConnection() throws IOException {
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        if (s != null)
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            throw new IllegalStateException("already connected");
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        this.s = ss.accept();
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    }
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    void closeConnection() throws IOException {
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        Socket s = this.s;
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        if (s != null) {
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            this.s = null;
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            s.close();
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        }
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    }
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    void write(int count) throws IOException {
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        if (s == null)
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            throw new IllegalStateException("no connection");
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        s.getOutputStream().write(new byte[count]);
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    }
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    public void close() throws IOException {
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        if (s != null)
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            s.close();
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        ss.close();
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    }
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}