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// Tags: JDK1.4
// Copyright (C) 2005 Free Software Foundation, Inc.
// Written by Ito Kazumitsu (kaz@maczuka.gcd.org)
// This file is part of Mauve.
// Mauve 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, or (at your option)
// any later version.
// Mauve 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 Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA. */
package gnu.testlet.java.nio.channels.FileChannel;
import java.io.*;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
/**
* Naive test for reading from and writing to FileChannels.
*/
public class copyIO implements Testlet
{
private static final byte[] source = "abcdefghijklmnopqrstuvwxyz".getBytes();
private static final int BUFSIZE = 10;
public void test (TestHarness harness)
{
File tmpf1 = null;
File tmpf2 = null;
try
{
byte[] source = "abcdefghijklmnopqrstuvwxyz".getBytes();
String tmpfile = harness.getTempDirectory()
+ File.separator + "mauve-copyIO.";
tmpf1 = new File(tmpfile + "TEST1");
tmpf2 = new File(tmpfile + "TEST2");
FileOutputStream fos = new FileOutputStream(tmpf1);
fos.write(source);
fos.close();
FileInputStream tmpin = new FileInputStream(tmpf1);
FileOutputStream tmpout = new FileOutputStream(tmpf2);
FileChannel in = tmpin.getChannel();
FileChannel out = tmpout.getChannel();
copyIO(BUFSIZE, in, out);
tmpin.close();
tmpout.close();
FileInputStream fis = new FileInputStream(tmpf2);
byte[] result = new byte[source.length + 1];
int l = fis.read(result, 0, result.length);
if (l == source.length)
{
harness.check(new String(source).equals(new String(result,0, l)));
}
else
{
if (l >= 0)
{
harness.fail("Unexpected result: source=" + new String(source)
+ ", result=" + new String(result,0, l));
}
else
{
harness.fail("Unexpected EOF");
}
}
}
catch (Exception e)
{
harness.fail("Unexpected exception: " + e);
harness.debug(e);
}
finally
{
if (tmpf1 != null) tmpf1.delete();
if (tmpf2 != null) tmpf2.delete();
}
}
private static void copyIO(int bufsize, FileChannel in, FileChannel out)
throws IOException
{
ByteBuffer buffer = ByteBuffer.allocate(bufsize);
boolean eof = false;
while (!eof)
{
buffer.clear();
int pos = buffer.position();
int limit = buffer.limit();
// Check whether the position is moved forward
for (int i = pos + 1; i <= limit; i++)
{
buffer.limit(i);
int l = in.read(buffer);
if (l < 0)
{
eof = true;
break;
}
}
buffer.flip();
pos = buffer.position();
limit = buffer.limit();
// Check whether the position is moved forward
for (int i = pos + 1; i <= limit; i++)
{
buffer.limit(i);
out.write(buffer);
}
}
}
}
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