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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: PipedConnection_Test.java,v $
 * $Revision: 1.5 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

package com.sun.star.comp.connections;

import complexlib.ComplexTestCase;

public final class PipedConnection_Test extends ComplexTestCase {
    public String getTestObjectName() {
        return getClass().getName();
    }

    public String[] getTestMethodNames() {
        return new String[] { "test" };
    }

    public void test() throws Exception {
        PipedConnection rightSide = new PipedConnection(new Object[0]);
        PipedConnection leftSide = new PipedConnection(new Object[]{rightSide});

        byte theByte[] = new byte[1];

        Reader reader = new Reader(rightSide, theByte);
        Writer writer = new Writer(leftSide, theByte, reader);

        reader.start();
        writer.start();

        Thread.sleep(2000);

        writer.term();
        writer.join();

        reader.join();

        assure("", writer._state && reader._state);
    }

    static class Reader extends Thread {
        PipedConnection _pipedConnection;
        byte _theByte[];
        boolean _quit;
        boolean _state = false;

        Reader(PipedConnection pipedConnection, byte theByte[]) {
            _pipedConnection = pipedConnection;
            _theByte = theByte;
        }

        public void run() {
            try {
                byte bytes[][] = new byte[1][];

                while(!_quit) {
                    int read = _pipedConnection.read(bytes, 1);

                    if(read == 1) {
//                          System.err.println("read :" + bytes[0][0]);

                        if(_theByte[0] != bytes[0][0])
                            throw new NullPointerException();

                        synchronized(this) {
                            notifyAll();
                        }
                    }
                    else
                        _quit = true; // EOF
                }

                _pipedConnection.close();
                _state = true;
            }
            catch(com.sun.star.io.IOException ioException) {
                System.err.println("#### Reader - unexpected:" + ioException);
            }

        }
    }

    static class Writer extends Thread {
        PipedConnection _pipedConnection;
        byte _theByte[];
        Reader _reader;
        boolean _quit;
        boolean _state = false;

        Writer(PipedConnection pipedConnection, byte theByte[], Reader reader) {
            _pipedConnection = pipedConnection;
            _reader = reader;
            _theByte = theByte;
        }

        public void run() {
            try {
                while(!_quit) {
                    synchronized(_reader) {
                        _pipedConnection.write(_theByte);
                        _pipedConnection.flush();
//                          System.err.println("written :" + _theByte[0]);

                        _reader.wait();
                    }
                    ++ _theByte[0];
                }

                _pipedConnection.close();

                _state = true;
            }
            catch(com.sun.star.io.IOException ioException) {
                System.err.println("#### Writer:" + ioException);
            }
            catch(InterruptedException interruptedException) {
                System.err.println("#### Writer:" + interruptedException);
            }
        }

        public void term() {
            _quit = true;
        }
    }
}