예제 #1
0
 public Object __tojava__(Class cls) throws IOException {
   if (OutputStream.class.isAssignableFrom(cls) && writing)
     return new FileOutputStream(file.getFD());
   else if (InputStream.class.isAssignableFrom(cls) && reading)
     return new FileInputStream(file.getFD());
   return super.__tojava__(cls);
 }
예제 #2
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 /**
  * Get an image from the disk cache.
  *
  * @param key The unique identifier for the bitmap
  * @return The bitmap or null if not found
  */
 public Bitmap get(final String key) {
   synchronized (mLinkedHashMap) {
     final String file = mLinkedHashMap.get(key);
     if (file != null) {
       if (BuildConfig.DEBUG) {
         Log.d(TAG, "Disk cache hit");
       }
       try {
         final RandomAccessFile raf = new RandomAccessFile(file, "r");
         return BitmapFactory.decodeFileDescriptor(raf.getFD());
       } catch (final IOException e) {
         Log.e(TAG, "getBitmap - " + e);
       }
       // return BitmapFactory.decodeFile(file);
     } else {
       final String existingFile = createFilePath(mCacheDir, key);
       if (new File(existingFile).exists()) {
         put(key, existingFile);
         if (BuildConfig.DEBUG) {
           Log.d(TAG, "Disk cache hit (existing file)");
         }
         try {
           final RandomAccessFile raf = new RandomAccessFile(existingFile, "r");
           return BitmapFactory.decodeFileDescriptor(raf.getFD());
         } catch (final IOException e) {
           Log.e(TAG, "getBitmap - " + e);
         }
         // return BitmapFactory.decodeFile(existingFile);
       }
     }
     return null;
   }
 }
예제 #3
0
 public static void secureDelete(File file, Random random) throws IOException {
   // FIXME somebody who understands these things should have a look at this...
   if (!file.exists()) return;
   long size = file.length();
   if (size > 0) {
     RandomAccessFile raf = null;
     try {
       System.out.println(
           "Securely deleting " + file + " which is of length " + size + " bytes...");
       raf = new RandomAccessFile(file, "rw");
       raf.seek(0);
       long count;
       byte[] buf = new byte[4096];
       // First zero it out
       count = 0;
       while (count < size) {
         int written = (int) Math.min(buf.length, size - count);
         raf.write(buf, 0, written);
         count += written;
       }
       raf.getFD().sync();
       // Then ffffff it out
       for (int i = 0; i < buf.length; i++) buf[i] = (byte) 0xFF;
       raf.seek(0);
       count = 0;
       while (count < size) {
         int written = (int) Math.min(buf.length, size - count);
         raf.write(buf, 0, written);
         count += written;
       }
       raf.getFD().sync();
       // Then random data
       random.nextBytes(buf);
       raf.seek(0);
       count = 0;
       while (count < size) {
         int written = (int) Math.min(buf.length, size - count);
         raf.write(buf, 0, written);
         count += written;
       }
       raf.getFD().sync();
       raf.seek(0);
       // Then 0's again
       for (int i = 0; i < buf.length; i++) buf[i] = 0;
       count = 0;
       while (count < size) {
         int written = (int) Math.min(buf.length, size - count);
         raf.write(buf, 0, written);
         count += written;
       }
       raf.getFD().sync();
       raf.close();
       raf = null;
     } finally {
       Closer.close(raf);
     }
   }
   if ((!file.delete()) && file.exists()) throw new IOException("Unable to delete file " + file);
 }
예제 #4
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  /**
   * Persists the bloom filter to disk.
   *
   * @throws IOException if I/O errors are encountered.
   */
  public void flush() throws IOException {
    cacheLock.writeLock().lock();
    try {
      checkIfOpen();
      if (cacheDirty && unflushedChanges != null && file != null) {
        final int offset = this.metadata.getHeaderLength();

        // it's actually a disk-backed filter with changes
        if (unflushedChangeCounter.get() >= seekThreshold) {
          file.seek(offset);
          file.write(cache); // can probably be made more efficient
          file.getFD().sync();
        } else {
          for (Map.Entry<Integer, Byte> change : unflushedChanges.entrySet()) {
            file.seek(change.getKey() + offset);
            file.write(change.getValue());
          }
        }
        cacheDirty = false;
        unflushedChanges.clear();
        unflushedChangeCounter.set(0);
      }
    } finally {
      cacheLock.writeLock().unlock();
    }
  }
예제 #5
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 public void write(File to) throws IOException {
   Properties props = new Properties();
   setFields(props, this);
   RandomAccessFile file = new RandomAccessFile(to, "rws");
   FileOutputStream out = null;
   try {
     file.seek(0);
     out = new FileOutputStream(file.getFD());
     /*
      * If server is interrupted before this line, the version file
      * will remain unchanged.
      */
     props.store(out, null);
     /*
      * Now the new fields are flushed to the head of the file, but
      * file length can still be larger then required and therefore
      * the file can contain whole or corrupted fields from its old
      * contents in the end. If server is interrupted here and
      * restarted later these extra fields either should not effect
      * server behavior or should be handled by the server correctly.
      */
     file.setLength(out.getChannel().position());
   } finally {
     if (out != null) {
       out.close();
     }
     file.close();
   }
 }
예제 #6
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  public void close() throws IOException {
    flush();

    if (!commitExecutor.isShutdown()) {
      commitExecutor.shutdown();
      try {
        if (!commitExecutor.awaitTermination(5, TimeUnit.MINUTES))
          throw new OException("Background data flush task can not be stopped.");
      } catch (InterruptedException e) {
        OLogManager.instance().error(this, "Data flush thread was interrupted");

        Thread.interrupted();
        throw new OException("Data flush thread was interrupted", e);
      }
    }

    synchronized (syncObject) {
      for (OFileClassic fileClassic : files.values()) {
        if (fileClassic.isOpen()) fileClassic.close();
      }

      if (nameIdMapHolder != null) {
        nameIdMapHolder.setLength(0);
        for (Map.Entry<String, Long> entry : nameIdMap.entrySet()) {
          writeNameIdEntry(new NameFileIdEntry(entry.getKey(), entry.getValue()), false);
        }
        nameIdMapHolder.getFD().sync();
        nameIdMapHolder.close();
      }
    }
  }
예제 #7
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 protected void fsync(String name) throws IOException {
   File fullFile = new File(directory, name);
   boolean success = false;
   int retryCount = 0;
   IOException exc = null;
   while (!success && retryCount < 5) {
     retryCount++;
     RandomAccessFile file = null;
     try {
       try {
         file = new RandomAccessFile(fullFile, "rw");
         file.getFD().sync();
         success = true;
       } finally {
         if (file != null) file.close();
       }
     } catch (IOException ioe) {
       if (exc == null) exc = ioe;
       try {
         // Pause 5 msec
         Thread.sleep(5);
       } catch (InterruptedException ie) {
         throw new ThreadInterruptedException(ie);
       }
     }
   }
   if (!success)
     // Throw original exception
     throw exc;
 }
 /** Opens a file for writing. */
 public TarOutputStream(final File fout, final boolean append) throws IOException {
   @SuppressWarnings("resource")
   RandomAccessFile raf = new RandomAccessFile(fout, "rw");
   final long fileSize = fout.length();
   if (append && fileSize > TarConstants.EOF_BLOCK) {
     raf.seek(fileSize - TarConstants.EOF_BLOCK);
   }
   out = new BufferedOutputStream(new FileOutputStream(raf.getFD()));
 }
  public synchronized InputStream getBlockInputStream(Block b, long seekOffset) throws IOException {

    File blockFile = getBlockFile(b);
    RandomAccessFile blockInFile = new RandomAccessFile(blockFile, "r");
    if (seekOffset > 0) {
      blockInFile.seek(seekOffset);
    }
    return new FileInputStream(blockInFile.getFD());
  }
예제 #10
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  public OutputStream getOutputStream() throws IOException {
    if (!PMS.get().isWindows()) {
      LOGGER.trace("Opening file " + linuxPipeName + " for writing...");
      RandomAccessFile raf = new RandomAccessFile(linuxPipeName, "rw");

      return new FileOutputStream(raf.getFD());
    }

    return mk.getWritable();
  }
예제 #11
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  public InputStream getInputStream() throws IOException {
    if (!PMS.get().isWindows()) {
      LOGGER.trace("Opening file " + linuxPipeName + " for reading...");
      RandomAccessFile raf = new RandomAccessFile(linuxPipeName, "r");

      return new FileInputStream(raf.getFD());
    }

    return mk.getReadable();
  }
예제 #12
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  public static void main(String[] args) throws IOException {
    RandomAccessFile raf = new RandomAccessFile("classes/test/FileDescriptors.java", "r");
    testDescriptorValidity(raf, raf.getFD());

    FileInputStream fs1 = new FileInputStream("classes/test/FileDescriptors.java");
    testDescriptorValidity(fs1, fs1.getFD());

    File temp = File.createTempFile("Doppio-FileDescriptorsTest", ".txt");
    FileOutputStream fs2 = new FileOutputStream(temp);
    testDescriptorValidity(fs2, fs2.getFD());
    temp.delete(); // we don't support deleteOnExit either
  }
예제 #13
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  /** Returns handles to the block file and its metadata file */
  public synchronized BlockInputStreams getTmpInputStreams(Block b, long blkOffset, long ckoff)
      throws IOException {

    DatanodeBlockInfo info = volumeMap.get(b);
    if (info == null) {
      throw new IOException("Block " + b + " does not exist in volumeMap.");
    }
    FSVolume v = info.getVolume();
    File blockFile = v.getTmpFile(b);
    RandomAccessFile blockInFile = new RandomAccessFile(blockFile, "r");
    if (blkOffset > 0) {
      blockInFile.seek(blkOffset);
    }
    File metaFile = getMetaFile(blockFile, b);
    RandomAccessFile metaInFile = new RandomAccessFile(metaFile, "r");
    if (ckoff > 0) {
      metaInFile.seek(ckoff);
    }
    return new BlockInputStreams(
        new FileInputStream(blockInFile.getFD()), new FileInputStream(metaInFile.getFD()));
  }
예제 #14
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  protected void writeCorruptedData(RandomAccessFile file) throws IOException {
    final String messageForPreUpgradeVersion =
        "\nThis file is INTENTIONALLY CORRUPTED so that versions\n"
            + "of Hadoop prior to 0.13 (which are incompatible\n"
            + "with this directory layout) will fail to start.\n";

    file.seek(0);
    file.writeInt(FSConstants.LAYOUT_VERSION);
    org.apache.hadoop.io.UTF8.writeString(file, "");
    file.writeBytes(messageForPreUpgradeVersion);
    file.getFD().sync();
  }
예제 #15
0
 /** Synchs the file. */
 public void synch() throws IOException {
   synchronized (data) {
     try {
       data.getFD().sync();
     } catch (SyncFailedException e) {
       // A SyncFailedException seems to occur on some specific OS under
       // JDK 1.4.x.  We ignore the exception which reduces the robustness
       // of the journal file for the OS where this problem occurs.
       // Unfortunately there's no sane way to handle this excption when it
       // does occur.
     }
   }
 }
예제 #16
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  // creates a new BloomFilter - access via BloomFilter.createOptimal(...)
  private BloomFilter(
      File f,
      int buckets,
      int hashFns,
      boolean force,
      int seekThreshold,
      BucketSize countBits,
      Allocator cacheAllocator,
      CloseCallback callback)
      throws IOException {
    this.closeCallback = callback;
    this.seekThreshold = seekThreshold;
    this.metadata = BloomMetadata.createNew(buckets, hashFns, countBits);
    hash = new RepeatedMurmurHash(hashFns, this.metadata.getBucketCount());

    // creating a new filter - so I can just be lazy and start it zero'd
    cache = cacheAllocator.apply(this.metadata.getTotalLength() - this.metadata.getHeaderLength());
    cacheDirty = true;

    open = true;

    if (f != null) {
      if (f.exists()) {
        if (force) {
          if (!f.delete()) {
            throw new IOException("Couldn't delete old file at " + f.getAbsolutePath());
          }
        } else {
          throw new IllegalArgumentException(
              "Can't create a new BloomFilter at "
                  + f.getAbsolutePath()
                  + " since it already exists");
        }
      }

      file = new RandomAccessFile(f, "rw");
      this.metadata.writeToFile(file);
      file.setLength(metadata.getTotalLength());
      file.getFD().sync();
      unflushedChanges = new ConcurrentSkipListMap<Integer, Byte>();

      if (f.length() != metadata.getTotalLength()) {
        throw new RuntimeException(
            "Bad size - expected " + metadata.getTotalLength() + " but got " + f.length());
      }
    } else {
      unflushedChanges =
          null; // don't bother keeping track of unflushed changes if this is memory only
      file = null;
    }
  }
예제 #17
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  private void writeNameIdEntry(NameFileIdEntry nameFileIdEntry, boolean sync) throws IOException {

    nameIdMapHolder.seek(nameIdMapHolder.length());

    final int nameSize = OStringSerializer.INSTANCE.getObjectSize(nameFileIdEntry.name);
    byte[] serializedName = new byte[nameSize];
    OStringSerializer.INSTANCE.serialize(nameFileIdEntry.name, serializedName, 0);

    nameIdMapHolder.writeInt(nameSize);
    nameIdMapHolder.write(serializedName);
    nameIdMapHolder.writeLong(nameFileIdEntry.fileId);

    if (sync) nameIdMapHolder.getFD().sync();
  }
예제 #18
0
  public void playSound(int soundId, int grade, int subject) {
    if (mPlayer == null) {
      return;
    }

    int soundIndex;

    mPlayer.reset();

    switch (soundId) {
      case GUIDE:
        soundIndex = (grade + 1) * 100 + subject + 1;
        break;
      case RIGHT:
        soundIndex = (int) (11 + Math.random() * 8);
        break;
      case WRONG:
        soundIndex = (int) (31 + Math.random() * 5);
        break;
      case EXAMPLE:
      case TEST:
      case ANSWER_IS_A:
      case ANSWER_IS_B:
      case ANSWER_IS_C:
      case ANSWER_IS_D:
      case RESULT_00:
      case RESULT_20:
      case RESULT_40:
      case RESULT_60:
      case RESULT_80:
      case RESULT_100:
        soundIndex = soundId;
      default:
        soundIndex = soundId;
    }

    Sound sound = mapping.get(soundIndex);
    try {

      if (sound != null) {
        mPlayer.setDataSource(mSound.getFD(), sound.mOffset, sound.mLength);

        mPlayer.prepare();
        mPlayer.start();
      }

    } catch (IOException e) {
      e.printStackTrace();
    }
  }
  /**
   * Prepares the recorder to begin capturing and encoding data. This method must be called after
   * setting up the desired audio and video sources, encoders, file format, etc., but before
   * start().
   *
   * @throws IllegalStateException if it is called after start() or before setOutputFormat().
   * @throws IOException if prepare fails otherwise.
   */
  public void prepare() throws IllegalStateException, IOException {
    if (mPath != null) {
      RandomAccessFile file = new RandomAccessFile(mPath, "rws");
      try {
        _setOutputFile(file.getFD(), 0, 0);
      } finally {
        file.close();
      }
    } else if (mFd != null) {
      _setOutputFile(mFd, 0, 0);
    } else {
      throw new IOException("No valid output file");
    }

    _prepare();
  }
예제 #20
0
 /**
  * Writes a bitmap to a file. Call {@link DiskLruCache#setCompressParams(CompressFormat, int)}
  * first to set the target bitmap compression and format.
  *
  * @param bitmap
  * @param file
  * @return
  */
 private boolean writeBitmapToFile(final Bitmap bitmap, final String file)
     throws IOException, FileNotFoundException {
   if (bitmap == null) return false;
   OutputStream out = null;
   try {
     final RandomAccessFile raf = new RandomAccessFile(file, "rw");
     out = new FileOutputStream(raf.getFD());
     // out = new BufferedOutputStream(new FileOutputStream(file),
     // ImageLoaderUtils.IO_BUFFER_SIZE);
     return bitmap.compress(mCompressFormat, mCompressQuality, out);
   } finally {
     if (out != null) {
       out.close();
     }
   }
 }
예제 #21
0
 public void read(File from) throws IOException {
   RandomAccessFile file = new RandomAccessFile(from, "rws");
   FileInputStream in = null;
   try {
     in = new FileInputStream(file.getFD());
     file.seek(0);
     Properties props = new Properties();
     props.load(in);
     getFields(props, this);
   } finally {
     if (in != null) {
       in.close();
     }
     file.close();
   }
 }
예제 #22
0
  public void finish(UpdateLog.SyncLevel syncLevel) {
    if (syncLevel == UpdateLog.SyncLevel.NONE) return;
    try {
      synchronized (this) {
        fos.flushBuffer();
      }

      if (syncLevel == UpdateLog.SyncLevel.FSYNC) {
        // Since fsync is outside of synchronized block, we can end up with a partial
        // last record on power failure (which is OK, and does not represent an error...
        // we just need to be aware of it when reading).
        raf.getFD().sync();
      }

    } catch (IOException e) {
      throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, e);
    }
  }
예제 #23
0
  public synchronized void flush(List<Update> updates) {
    Assert.state(storedFile != null, "The FileStorage is not initialized");
    try {
      for (Update update : updates) {
        ensureCapacity(update.index * BYTES_IN_LONG + BYTES_IN_LONG);
        if (activateMemoryMappedBuffers) {
          buffer.putLong(update.index * BYTES_IN_LONG, update.value);
        } else {
          storedFile.seek(update.index * BYTES_IN_LONG);
          storedFile.writeLong(update.value);
        }
      }
      if (activateMemoryMappedBuffers) {
        buffer.force();
      }
      storedFile.getFD().sync();

    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
예제 #24
0
 public long open(String path, String mode) throws IOException {
   if (!("r".equals(mode) || "w".equals(mode) || "rw".equals(mode))) {
     throw new IllegalArgumentException();
   }
   try {
     FileDescriptor fileFD;
     File file;
     if (mode.equals("w")) {
       FileOutputStream f = new FileOutputStream(path);
       fileFD = f.getFD();
       file = new OutputStreamFile(f, kem);
     } else {
       RandomAccessFile f = new RandomAccessFile(fileUtil.resolveWorkingDirectory(path), mode);
       fileFD = f.getFD();
       file = new RandomAccessFileFile(f);
     }
     long fd = fdCounter++;
     descriptors.put(fd, fileFD);
     files.put(fileFD, file);
     return fd;
   } catch (FileNotFoundException e) {
     try {
       processFileNotFoundException(e);
     } catch (IOException ioe) {
       if (ioe.getMessage().equals("EISDIR") && mode.equals("r")) {
         // man 2 open says you can open a directory in readonly mode with open, but
         // java has no support for it. So we throw an UnsupportedOperationException
         // instead of failing with EISDIR
         kem.registerInternalWarning(
             "Unsupported file system behavior: tried to open a directory."
                 + " If you are interested in this behavior, please file an issue on github.");
         throw new UnsupportedOperationException();
       }
       throw ioe;
     }
     throw e; // unreachable
   }
 }
예제 #25
0
 public static void secureDelete(File file) throws IOException {
   // FIXME somebody who understands these things should have a look at this...
   if (!file.exists()) return;
   long size = file.length();
   if (size > 0) {
     RandomAccessFile raf = null;
     try {
       System.out.println(
           "Securely deleting " + file + " which is of length " + size + " bytes...");
       raf = new RandomAccessFile(file, "rw");
       long count;
       // Random data first.
       raf.seek(0);
       fill(new RandomAccessFileOutputStream(raf), size);
       raf.getFD().sync();
       raf.close();
       raf = null;
     } finally {
       Closer.close(raf);
     }
   }
   if ((!file.delete()) && file.exists()) throw new IOException("Unable to delete file " + file);
 }
예제 #26
0
파일: Test.java 프로젝트: pkouki/recsys2015
 private void testFile(DataOutputStream out) throws IOException {
   File file = new File("test.txt");
   if (file.exists()) {
     file.delete();
   }
   RandomAccessFile write = new RandomAccessFile(file, "rws");
   // RandomAccessFile write = new RandomAccessFile(file, "rwd");
   int fileSize = 10 * 1024 * 1024;
   FileUtils.setLength(write, fileSize);
   write.seek(0);
   int i = 0;
   FileDescriptor fd = write.getFD();
   while (true) {
     if (write.getFilePointer() >= fileSize) {
       break;
     }
     write.writeBytes(i + "\r\n");
     fd.sync();
     out.writeInt(i);
     out.flush();
     i++;
   }
   write.close();
 }
 public static void save(RecentGame game, Summoner summoner) throws IOException {
   ObjectOutputStream objectOutputStream = null;
   RandomAccessFile raf = null;
   try {
     // TODO: write to XML or something instead of Java's silly format
     String gameFileString =
         String.format(
             gameFileFormat,
             ServerInfo.currentServerInfo.region,
             summoner.getSummonerID(),
             game.getGameID());
     raf = new RandomAccessFile(FileSystem.getFile(gameFileString), "rw");
     FileOutputStream fos = new FileOutputStream(raf.getFD());
     objectOutputStream = new ObjectOutputStream(fos);
     objectOutputStream.writeObject(game);
   } finally {
     if (objectOutputStream != null) {
       objectOutputStream.close();
     }
     if (raf != null) {
       raf.close();
     }
   }
 }
예제 #28
0
 public static void main(String[] args) {
   if (args.length != 1) {
     System.err.println("Usage: ZIPLINES_PATH");
     System.exit(1);
   }
   File f = new File(args[0]);
   long size = f.length();
   long numBlocks = (long) (size / ZiplinedBlock.BLOCK_SIZE);
   long size2 = numBlocks * ZiplinedBlock.BLOCK_SIZE;
   if (size != size2) {
     System.err.println(
         "File size of " + args[0] + " is not a mulitple" + " of " + ZiplinedBlock.BLOCK_SIZE);
   }
   try {
     RandomAccessFile raf = new RandomAccessFile(f, "r");
     for (int i = 0; i < numBlocks; i++) {
       long offset = i * ZiplinedBlock.BLOCK_SIZE;
       raf.seek(offset);
       //				BufferedReader br = new BufferedReader(new InputStreamReader(
       //						new GZIPInputStream(new FileInputStream(raf.getFD())),ByteOp.UTF8));
       BufferedReader br =
           new BufferedReader(
               new InputStreamReader(
                   new OpenJDK7GZIPInputStream(new FileInputStream(raf.getFD())), ByteOp.UTF8));
       String line = br.readLine();
       if (line == null) {
         System.err.println("Bad block at " + offset + " in " + args[0]);
         System.exit(1);
       }
       System.out.println(args[0] + " " + offset + " " + line);
     }
   } catch (IOException e) {
     e.printStackTrace();
     System.exit(1);
   }
 }
예제 #29
0
 public void flush() throws IOException {
   file.seek(bufferStart);
   file.write(buffer, 0, dataSize);
   bufferModified = false;
   file.getFD().sync();
 }
예제 #30
0
  public void test() throws IOException {

    createFile();

    // test exception if file doesn't exist
    try {
      LazyFileInputStream in = new LazyFileInputStream(file.getAbsolutePath() + "XX");
      in.close();
      fail();
    } catch (IOException e) {
      // expected
    }

    // test open / close (without reading)
    LazyFileInputStream in = new LazyFileInputStream(file);
    in.close();

    // test reading too much and closing too much
    in = new LazyFileInputStream(file);
    assertEquals(0, in.read());
    assertEquals(-1, in.read());
    assertEquals(-1, in.read());
    assertEquals(-1, in.read());
    in.close();
    in.close();
    in.close();
    assertEquals(-1, in.read());

    // test with file name
    in = new LazyFileInputStream(file.getAbsolutePath());
    assertEquals(1, in.available());
    assertEquals(0, in.read());
    assertEquals(0, in.available());
    assertEquals(-1, in.read());
    assertEquals(0, in.available());
    in.close();

    // test markSupported, mark, and reset
    in = new LazyFileInputStream(file);
    assertFalse(in.markSupported());
    in.mark(1);
    assertEquals(0, in.read());
    try {
      in.reset();
      fail();
    } catch (IOException e) {
      // expected
    }
    assertEquals(-1, in.read());
    in.close();

    // test read(byte[])
    in = new LazyFileInputStream(file);
    byte[] test = new byte[2];
    assertEquals(1, in.read(test));
    in.close();

    // test read(byte[],int,int)
    in = new LazyFileInputStream(file);
    assertEquals(1, in.read(test, 0, 2));
    in.close();

    // test skip
    in = new LazyFileInputStream(file);
    assertEquals(2, in.skip(2));
    assertEquals(-1, in.read(test));
    assertEquals(0, in.skip(2));
    in.close();

    // test with the file descriptor
    RandomAccessFile ra = new RandomAccessFile(file, "r");
    in = new LazyFileInputStream(ra.getFD());
    assertEquals(0, in.read());
    assertEquals(-1, in.read());
    in.close();
    ra.close();

    // test that the file is not opened before reading
    in = new LazyFileInputStream(file);
    // this should fail in Windows if the file was opened
    file.delete();

    createFile();

    // test that the file is closed after reading the last byte
    in = new LazyFileInputStream(file);
    assertEquals(0, in.read());
    assertEquals(-1, in.read());
    // this should fail in Windows if the file was opened
    file.delete();
  }