1 /* 2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 4738257 4853295 26 * @summary Test Util.getTemporaryBuffer 27 */ 28 29 import java.io.*; 30 import java.nio.channels.*; 31 import java.nio.*; 32 33 public class TempBuffer { 34 35 private static final int SIZE = 4000; 36 37 private static final int ITERATIONS = 10; 38 main(String[] args)39 public static void main(String[] args) throws Exception { 40 for (int i=0; i<ITERATIONS; i++) 41 testTempBufs(); 42 } 43 testTempBufs()44 private static void testTempBufs() throws Exception { 45 Pipe pipe = Pipe.open(); 46 Pipe.SourceChannel sourceChannel = pipe.source(); 47 final Pipe.SinkChannel sinkChannel = pipe.sink(); 48 49 Thread writerThread = new Thread() { 50 public void run() { 51 try { 52 OutputStream out = Channels.newOutputStream(sinkChannel); 53 File blah = File.createTempFile("blah1", null); 54 blah.deleteOnExit(); 55 TempBuffer.initTestFile(blah); 56 RandomAccessFile raf = new RandomAccessFile(blah, "rw"); 57 FileChannel fc = raf.getChannel(); 58 try { 59 fc.transferTo(0, SIZE, Channels.newChannel(out)); 60 } finally { 61 fc.close(); 62 } 63 out.flush(); 64 } catch (IOException ioe) { 65 throw new RuntimeException(ioe); 66 } 67 } 68 }; 69 70 writerThread.start(); 71 72 InputStream in = Channels.newInputStream(sourceChannel); 73 File blah = File.createTempFile("blah2", null); 74 blah.deleteOnExit(); 75 RandomAccessFile raf = new RandomAccessFile(blah, "rw"); 76 FileChannel fc = raf.getChannel(); 77 try { 78 raf.setLength(SIZE); 79 fc.transferFrom(Channels.newChannel(in), 0, SIZE); 80 } finally { 81 fc.close(); 82 } 83 84 sourceChannel.close(); 85 sinkChannel.close(); 86 blah.delete(); 87 } 88 initTestFile(File blah)89 private static void initTestFile(File blah) throws IOException { 90 FileOutputStream fos = new FileOutputStream(blah); 91 BufferedWriter awriter 92 = new BufferedWriter(new OutputStreamWriter(fos, "8859_1")); 93 94 for(int i=0; i<4000; i++) { 95 String number = new Integer(i).toString(); 96 for (int h=0; h<4-number.length(); h++) 97 awriter.write("0"); 98 awriter.write(""+i); 99 awriter.newLine(); 100 } 101 awriter.flush(); 102 awriter.close(); 103 } 104 } 105