| /* |
| * Copyright (c) 2001, 2017, 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 4638365 |
| * @summary Test FileChannel.transferFrom and transferTo for 4GB files |
| * @run testng/timeout=300 Transfer4GBFile |
| */ |
| |
| import java.io.BufferedWriter; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStreamWriter; |
| import java.io.PrintStream; |
| import java.io.RandomAccessFile; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.FileChannel; |
| import java.nio.file.StandardOpenOption; |
| import java.nio.file.FileAlreadyExistsException; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.testng.annotations.Test; |
| |
| public class Transfer4GBFile { |
| |
| private static PrintStream err = System.err; |
| private static PrintStream out = System.out; |
| |
| // Test transferTo with large file |
| @Test |
| public void xferTest04() throws Exception { // for bug 4638365 |
| File source = File.createTempFile("blah", null); |
| source.deleteOnExit(); |
| long testSize = ((long)Integer.MAX_VALUE) * 2; |
| initTestFile(source, 10); |
| RandomAccessFile raf = new RandomAccessFile(source, "rw"); |
| FileChannel fc = raf.getChannel(); |
| out.println(" Writing large file..."); |
| long t0 = System.nanoTime(); |
| fc.write(ByteBuffer.wrap("Use the source!".getBytes()), testSize - 40); |
| long t1 = System.nanoTime(); |
| out.printf(" Wrote large file in %d ns (%d ms) %n", |
| t1 - t0, TimeUnit.NANOSECONDS.toMillis(t1 - t0)); |
| |
| fc.close(); |
| raf.close(); |
| |
| File sink = File.createTempFile("sink", null); |
| sink.deleteOnExit(); |
| |
| FileInputStream fis = new FileInputStream(source); |
| FileChannel sourceChannel = fis.getChannel(); |
| |
| raf = new RandomAccessFile(sink, "rw"); |
| FileChannel sinkChannel = raf.getChannel(); |
| |
| long bytesWritten = sourceChannel.transferTo(testSize -40, 10, |
| sinkChannel); |
| if (bytesWritten != 10) { |
| throw new RuntimeException("Transfer test 4 failed " + |
| bytesWritten); |
| } |
| sourceChannel.close(); |
| sinkChannel.close(); |
| |
| source.delete(); |
| sink.delete(); |
| } |
| |
| // Test transferFrom with large file |
| @Test |
| public void xferTest05() throws Exception { // for bug 4638365 |
| // Create a source file & large sink file for the test |
| File source = File.createTempFile("blech", null); |
| source.deleteOnExit(); |
| initTestFile(source, 100); |
| |
| // Create the sink file as a sparse file if possible |
| File sink = null; |
| FileChannel fc = null; |
| while (fc == null) { |
| sink = File.createTempFile("sink", null); |
| // re-create as a sparse file |
| sink.delete(); |
| try { |
| fc = FileChannel.open(sink.toPath(), |
| StandardOpenOption.CREATE_NEW, |
| StandardOpenOption.WRITE, |
| StandardOpenOption.SPARSE); |
| } catch (FileAlreadyExistsException ignore) { |
| // someone else got it |
| } |
| } |
| sink.deleteOnExit(); |
| |
| long testSize = ((long)Integer.MAX_VALUE) * 2; |
| try { |
| out.println(" Writing large file..."); |
| long t0 = System.nanoTime(); |
| fc.write(ByteBuffer.wrap("Use the source!".getBytes()), |
| testSize - 40); |
| long t1 = System.nanoTime(); |
| out.printf(" Wrote large file in %d ns (%d ms) %n", |
| t1 - t0, TimeUnit.NANOSECONDS.toMillis(t1 - t0)); |
| } catch (IOException e) { |
| // Can't set up the test, abort it |
| err.println("xferTest05 was aborted."); |
| return; |
| } finally { |
| fc.close(); |
| } |
| |
| // Get new channels for the source and sink and attempt transfer |
| FileChannel sourceChannel = new FileInputStream(source).getChannel(); |
| try { |
| FileChannel sinkChannel = new RandomAccessFile(sink, "rw").getChannel(); |
| try { |
| long bytesWritten = sinkChannel.transferFrom(sourceChannel, |
| testSize - 40, 10); |
| if (bytesWritten != 10) { |
| throw new RuntimeException("Transfer test 5 failed " + |
| bytesWritten); |
| } |
| } finally { |
| sinkChannel.close(); |
| } |
| } finally { |
| sourceChannel.close(); |
| } |
| |
| source.delete(); |
| sink.delete(); |
| } |
| |
| /** |
| * Creates file blah of specified size in bytes. |
| */ |
| private static void initTestFile(File blah, long size) throws Exception { |
| if (blah.exists()) |
| blah.delete(); |
| FileOutputStream fos = new FileOutputStream(blah); |
| BufferedWriter awriter |
| = new BufferedWriter(new OutputStreamWriter(fos, "8859_1")); |
| |
| for(int i=0; i<size; i++) { |
| awriter.write("e"); |
| } |
| awriter.flush(); |
| awriter.close(); |
| } |
| } |