/*
* Copyright ( c ) 2002 , 2010 , Oracle and / or its affiliates . All rights reserved .
* 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 .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
/* @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();
}
}
Messung V0.5 in Prozent C=96 H=100 G=97
¤ Dauer der Verarbeitung: 0.7 Sekunden
(vorverarbeitet am 2026-10-11)
¤
*© Formatika GbR, Deutschland