Package org.apache.commons.vfs2.impl

Examples of org.apache.commons.vfs2.impl.DefaultFileMonitor

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    {
        FileObject file = null;
        try
        {
            file = getReadFolder().resolveFile("file1.txt");
            RandomAccessContent ra = file.getContent().getRandomAccessContent(RandomAccessMode.READ);

            // read first byte
            byte c = ra.readByte();
            assertEquals(c, TEST_DATA.charAt(0));
            assertEquals("fp", ra.getFilePointer(), 1);

            // start at pos 4
            ra.seek(3);
            c = ra.readByte();
            assertEquals(c, TEST_DATA.charAt(3));
            assertEquals("fp", ra.getFilePointer(), 4);

            c = ra.readByte();
            assertEquals(c, TEST_DATA.charAt(4));
            assertEquals("fp", ra.getFilePointer(), 5);

            // restart at pos 4
            ra.seek(3);
            c = ra.readByte();
            assertEquals(c, TEST_DATA.charAt(3));
            assertEquals("fp", ra.getFilePointer(), 4);

            c = ra.readByte();
            assertEquals(c, TEST_DATA.charAt(4));
            assertEquals("fp", ra.getFilePointer(), 5);

            // advance to pos 11
            ra.seek(10);
            c = ra.readByte();
            assertEquals(c, TEST_DATA.charAt(10));
            assertEquals("fp", ra.getFilePointer(), 11);

            c = ra.readByte();
            assertEquals(c, TEST_DATA.charAt(11));
            assertEquals("fp", ra.getFilePointer(), 12);
        }
        finally
        {
            if (file != null)
            {
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    public FilesCache getFilesCache()
    {
        if (cache == null)
        {
            // cache = new DefaultFilesCache();
            cache = new SoftRefFilesCache();
        }

        return cache;
    }
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    }

    public void testFileCreated() throws Exception
    {
        FileObject fileObj = fsManager.resolveFile(testFile.toURL().toString());
        DefaultFileMonitor monitor = new DefaultFileMonitor(new TestFileListener());
        monitor.setDelay(100);
        monitor.addFile(fileObj);
        monitor.start();
        writeToFile(testFile);
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event", changeStatus == 3);
        monitor.stop();
    }
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    public void testFileDeleted() throws Exception
    {
        writeToFile(testFile);
        FileObject fileObj = fsManager.resolveFile(testFile.toURL().toString());
        DefaultFileMonitor monitor = new DefaultFileMonitor(new TestFileListener());
        monitor.setDelay(100);
        monitor.addFile(fileObj);
        monitor.start();
        testFile.delete();
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event", changeStatus == 2);
        monitor.stop();
    }
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    public void testFileModified() throws Exception
    {
        writeToFile(testFile);
        FileObject fileObj = fsManager.resolveFile(testFile.toURL().toString());
        DefaultFileMonitor monitor = new DefaultFileMonitor(new TestFileListener());
        monitor.setDelay(100);
        monitor.addFile(fileObj);
        monitor.start();
        // Need a long delay to insure the new timestamp doesn't truncate to be the same as
        // the current timestammp. Java only guarantees the timestamp will be to 1 second.
        Thread.sleep(1000);
        long value = System.currentTimeMillis();
        boolean rc = testFile.setLastModified(value);
        assertTrue("setLastModified succeeded",rc);
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event", changeStatus == 1);
        monitor.stop();
    }
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    public void testFileRecreated() throws Exception
    {
        FileObject fileObj = fsManager.resolveFile(testFile.toURL().toString());
        DefaultFileMonitor monitor = new DefaultFileMonitor(new TestFileListener());
        monitor.setDelay(100);
        monitor.addFile(fileObj);
        monitor.start();
        writeToFile(testFile);
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event " + changeStatus, changeStatus == 3);
        changeStatus = 0;
        testFile.delete();
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event " + changeStatus, changeStatus == 2);
        changeStatus = 0;
        Thread.sleep(500);
        monitor.addFile(fileObj);
        writeToFile(testFile);
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event " + changeStatus, changeStatus == 3);
        monitor.stop();
    }
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  }
 
  @Test
  public void testFileMonitor() throws Exception {
    MyFileMonitor listener = new MyFileMonitor();
    DefaultFileMonitor monitor = new DefaultFileMonitor(listener);
    monitor.setRecursive(true);
    FileObject testDir = vfs.resolveFile(TEST_DIR.toUri().toString());
    monitor.addFile(testDir);
    monitor.start();
   
    //Copy jar file to a new file name
    URL jarPath = this.getClass().getResource("/HelloWorld.jar");
    Path src = new Path(jarPath.toURI().toString());
    Path dst = new Path(TEST_DIR, "HelloWorld2.jar");
    this.hdfs.copyFromLocalFile(src, dst);

    // VFS-487 significantly wait to avoid failure
    Thread.sleep(7000);
    Assert.assertTrue(listener.isFileCreated());

    //Update the jar
    jarPath = this.getClass().getResource("/HelloWorld.jar");
    src = new Path(jarPath.toURI().toString());
    dst = new Path(TEST_DIR, "HelloWorld2.jar");
    this.hdfs.copyFromLocalFile(src, dst);

    // VFS-487 significantly wait to avoid failure
    Thread.sleep(7000);
    Assert.assertTrue(listener.isFileChanged());
   
    this.hdfs.delete(dst, false);
    // VFS-487 significantly wait to avoid failure
    Thread.sleep(7000);
    Assert.assertTrue(listener.isFileDeleted());
   
    monitor.stop();
   
  }
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    if (preDelegate)
      cl = new VFSClassLoader(files, vfs, parent.getClassLoader());
    else
      cl = new PostDelegatingVFSClassLoader(files, vfs, parent.getClassLoader());
   
    monitor = new DefaultFileMonitor(this);
    monitor.setDelay(monitorDelay);
    monitor.setRecursive(false);
    for (FileObject file : pathsToMonitor) {
      monitor.addFile(file);
      log.debug("monitoring " + file);
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  }
 
  @Test
  public void testFileMonitor() throws Exception {
    MyFileMonitor listener = new MyFileMonitor();
    DefaultFileMonitor monitor = new DefaultFileMonitor(listener);
    monitor.setRecursive(true);
    FileObject testDir = vfs.resolveFile(TEST_DIR.toUri().toString());
    monitor.addFile(testDir);
    monitor.start();
   
    //Copy jar file to a new file name
    URL jarPath = this.getClass().getResource("/HelloWorld.jar");
    Path src = new Path(jarPath.toURI().toString());
    Path dst = new Path(TEST_DIR, "HelloWorld2.jar");
    this.hdfs.copyFromLocalFile(src, dst);

    Thread.sleep(2000);
    Assert.assertTrue(listener.isFileCreated());

    //Update the jar
    jarPath = this.getClass().getResource("/HelloWorld.jar");
    src = new Path(jarPath.toURI().toString());
    dst = new Path(TEST_DIR, "HelloWorld2.jar");
    this.hdfs.copyFromLocalFile(src, dst);

    Thread.sleep(2000);
    Assert.assertTrue(listener.isFileChanged());
   
    this.hdfs.delete(dst, false);
    Thread.sleep(2000);
    Assert.assertTrue(listener.isFileDeleted());
   
    monitor.stop();
   
  }
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    if (preDelegate)
      cl = new VFSClassLoader(files, vfs, parent.getClassLoader());
    else
      cl = new PostDelegatingVFSClassLoader(files, vfs, parent.getClassLoader());
   
    monitor = new DefaultFileMonitor(this);
    monitor.setDelay(monitorDelay);
    monitor.setRecursive(false);
    for (FileObject file : pathsToMonitor) {
      monitor.addFile(file);
      log.debug("monitoring " + file);
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