136 lines
3.5 KiB
Java
136 lines
3.5 KiB
Java
/*************************************************************************
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/* PipedReaderWriterTest.java -- Tests Piped{Reader,Writers}'s
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/*
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/* Copyright (c) 1998 Free Software Foundation, Inc.
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/* Written by Aaron M. Renn (arenn@urbanophile.com)
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/*
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/* This program is free software; you can redistribute it and/or modify
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/* it under the terms of the GNU General Public License as published
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/* by the Free Software Foundation, either version 2 of the License, or
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/* (at your option) any later version.
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/*
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/* This program is distributed in the hope that it will be useful, but
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/* WITHOUT ANY WARRANTY; without even the implied warranty of
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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/* GNU General Public License for more details.
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/*
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/* You should have received a copy of the GNU General Public License
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/* along with this program; if not, write to the Free Software Foundation
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/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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/*************************************************************************/
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import java.io.*;
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public class PipedReaderWriterTest
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{
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public static void
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main(String[] argv) throws InterruptedException
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{
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// Set up a reasonable buffer size for this test if one is not already
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// specified
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String prop = System.getProperty("gnu.java.io.pipe_size");
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// if (prop == null)
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// System.setProperty("gnu.java.io.pipe_size", "32");
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try
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{
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System.out.println("Started test of PipedReader and PipedWriter");
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System.out.println("Test 1: Basic pipe test");
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// Set up the thread to write
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PipedTestWriter ptw = new PipedTestWriter();
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String str = ptw.getStr();
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PipedWriter pw = ptw.getWriter();
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// Now set up our reader
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PipedReader pr = new PipedReader();
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pr.connect(pw);
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new Thread(ptw).start();
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char[] buf = new char[12];
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int chars_read, total_read = 0;
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while((chars_read = pr.read(buf)) != -1)
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{
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System.out.print(new String(buf, 0, chars_read));
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System.out.flush();
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Thread.sleep(10); // A short delay
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total_read += chars_read;
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}
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if (total_read == str.length())
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System.out.println("PASSED: Basic pipe test");
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else
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System.out.println("FAILED: Basic pipe test");
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}
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catch (IOException e)
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{
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System.out.println("FAILED: Basic pipe test: " + e);
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}
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}
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} // class PipedReaderWriterTest
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class PipedTestWriter implements Runnable
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{
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String str;
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StringReader sbr;
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PipedWriter out;
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public
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PipedTestWriter()
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{
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str = "In college, there was a tradition going for a while that people\n" +
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"would get together and hang out at Showalter Fountain - in the center\n" +
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"of Indiana University's campus - around midnight. It was mostly folks\n" +
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"from the computer lab and just people who liked to use the Forum\n" +
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"bbs system on the VAX. IU pulled the plug on the Forum after I left\n" +
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"despite its huge popularity. Now they claim they are just giving\n" +
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"students what they want by cutting deals to make the campus all\n" +
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"Microsoft.\n";
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sbr = new StringReader(str);
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out = new PipedWriter();
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}
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public PipedWriter
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getWriter()
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{
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return(out);
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}
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public String
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getStr()
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{
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return(str);
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}
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public void
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run()
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{
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char[] buf = new char[32];
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int chars_read;
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try
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{
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int b = sbr.read();
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out.write(b);
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while ((chars_read = sbr.read(buf)) != -1)
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out.write(buf, 0, chars_read);
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out.close();
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}
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catch(IOException e)
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{
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System.out.println("FAILED: Basic pipe test: " + e);
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}
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}
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} // PipedTestWriter
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