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/*************************************************************************
/* PipedReaderWriterTest.java -- Tests Piped{Reader,Writers}'s
/*
/* Copyright (c) 1998 Free Software Foundation, Inc.
/* Written by Aaron M. Renn (arenn@urbanophile.com)
/*
/* This program is free software; you can redistribute it and/or modify
/* it under the terms of the GNU General Public License as published
/* by the Free Software Foundation, either version 2 of the License, or
/* (at your option) any later version.
/*
/* This program 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 for more details.
/*
/* You should have received a copy of the GNU General Public License
/* along with this program; if not, write to the Free Software Foundation
/* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA
/*************************************************************************/
import java.io.*;
public class PipedReaderWriterTest
{
public static void
main(String[] argv)
{
// Set up a reasonable buffer size for this test if one is not already
// specified
String prop = System.getProperty("gnu.java.io.pipe_size");
// if (prop == null)
// System.setProperty("gnu.java.io.pipe_size", "32");
try
{
System.out.println("Started test of PipedReader and PipedWriter");
System.out.println("Test 1: Basic pipe test");
// Set up the thread to write
PipedTestWriter ptw = new PipedTestWriter();
String str = ptw.getStr();
PipedWriter pw = ptw.getWriter();
// Now set up our reader
PipedReader pr = new PipedReader();
pr.connect(pw);
new Thread(ptw).start();
char[] buf = new char[12];
int chars_read, total_read = 0;
while((chars_read = pr.read(buf)) != -1)
{
System.out.print(new String(buf, 0, chars_read));
System.out.flush();
System.gc(); // A short delay
total_read += chars_read;
}
if (total_read == str.length())
System.out.println("PASSED: Basic pipe test");
else
System.out.println("FAILED: Basic pipe test");
}
catch (IOException e)
{
System.out.println("FAILED: Basic pipe test: " + e);
}
}
} // class PipedReaderWriterTest
class PipedTestWriter implements Runnable
{
String str;
StringReader sbr;
PipedWriter out;
public
PipedTestWriter()
{
str = "In college, there was a tradition going for a while that people\n" +
"would get together and hang out at Showalter Fountain - in the center\n" +
"of Indiana University's campus - around midnight. It was mostly folks\n" +
"from the computer lab and just people who liked to use the Forum\n" +
"bbs system on the VAX. IU pulled the plug on the Forum after I left\n" +
"despite its huge popularity. Now they claim they are just giving\n" +
"students what they want by cutting deals to make the campus all\n" +
"Microsoft.\n";
sbr = new StringReader(str);
out = new PipedWriter();
}
public PipedWriter
getWriter()
{
return(out);
}
public String
getStr()
{
return(str);
}
public void
run()
{
char[] buf = new char[32];
int chars_read;
try
{
int b = sbr.read();
out.write(b);
while ((chars_read = sbr.read(buf)) != -1)
out.write(buf, 0, chars_read);
out.close();
}
catch(IOException e)
{
System.out.println("FAILED: Basic pipe test: " + e);
}
}
} // PipedTestWriter
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