1 /*
   2  * Copyright (c) 2012, 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 import java.io.File;
  25 import java.io.FileNotFoundException;
  26 import java.io.IOException;
  27 import java.nio.ByteBuffer;
  28 import java.nio.channels.FileChannel;
  29 import java.nio.file.StandardOpenOption;
  30 
  31 /*
  32  * @test
  33  * @bug 8003322
  34  * @run shell ioTraceTest.sh IoTraceFileChannelReadWrite
  35  */
  36 public class IoTraceFileChannelReadWrite extends IoTraceBase {
  37 
  38     private void testWrite(File f) throws IOException, FileNotFoundException,
  39             Exception {
  40         try (FileChannel fc = FileChannel.open(f.toPath(),
  41                 StandardOpenOption.WRITE)) {
  42             ByteBuffer bb = ByteBuffer.allocate(1);
  43             bb.put((byte) 11);
  44             bb.flip();
  45             fc.write(bb);
  46         }
  47         expectFile(1, 0, f);
  48     }
  49 
  50     private void testRead(File f) throws IOException, FileNotFoundException,
  51             Exception {
  52         try (FileChannel fc = FileChannel.open(f.toPath(),
  53                 StandardOpenOption.READ)) {
  54             ByteBuffer bb = ByteBuffer.allocate(1);
  55             fc.read(bb);
  56         }
  57         expectFile(0, 1, f);
  58     }
  59 
  60     public void test() throws Exception {
  61         IoTraceAgent.setListener(this);
  62         File f = File.createTempFile("IoTraceFileChannelReadWrite", ".bin");
  63         try {
  64             clear();
  65             testWrite(f);
  66             clear();
  67             testRead(f);
  68         } finally {
  69             f.delete();
  70         }
  71     }
  72 
  73     public static void main(String... args) throws Exception {
  74         IoTraceFileChannelReadWrite t = new IoTraceFileChannelReadWrite();
  75         t.test();
  76     }
  77 }