/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
/* @test
* @bug 4738257 4853295
* @summary Test Util.getTemporaryBuffer
*/
import java.io.*;
import java.nio.channels.*;
import java.nio.*;
public class TempBuffer {
private static final int SIZE = 4000;
private static final int ITERATIONS = 10;
public static void main(String[] args) throws Exception {
for (int i=0; i<ITERATIONS; i++)
testTempBufs();
}
private static void testTempBufs() throws Exception {
Pipe pipe = Pipe.open();
Pipe.SourceChannel sourceChannel = pipe.source();
final Pipe.SinkChannel sinkChannel = pipe.sink();
Thread writerThread = new Thread() {
public void run() {
try {
OutputStream out = Channels.newOutputStream(sinkChannel);
File blah = File.createTempFile("blah1", null);
blah.deleteOnExit();
TempBuffer.initTestFile(blah);
RandomAccessFile raf = new RandomAccessFile(blah, "rw");
FileChannel fc = raf.getChannel();
try {
fc.transferTo(0, SIZE, Channels.newChannel(out));
} finally {
fc.close();
}
out.flush();
} catch (IOException ioe) {
throw new RuntimeException(ioe);
}
}
};
writerThread.start();
InputStream in = Channels.newInputStream(sourceChannel);
File blah = File.createTempFile("blah2", null);
blah.deleteOnExit();
RandomAccessFile raf = new RandomAccessFile(blah, "rw");
FileChannel fc = raf.getChannel();
try {
raf.setLength(SIZE);
fc.transferFrom(Channels.newChannel(in), 0, SIZE);
} finally {
fc.close();
}
sourceChannel.close();
sinkChannel.close();
blah.delete();
}
private static void initTestFile(File blah) throws IOException {
FileOutputStream fos = new FileOutputStream(blah);
BufferedWriter awriter
= new BufferedWriter(new OutputStreamWriter(fos, "8859_1"));
for(int i=0; i<4000; i++) {
String number = new Integer(i).toString();
for (int h=0; h<4-number.length(); h++)
awriter.write("0");
awriter.write(""+i);
awriter.newLine();
}
awriter.flush();
awriter.close();
}
}