org.apache.hadoop.io.compress.lz4.Lz4Compressor Java Examples

The following examples show how to use org.apache.hadoop.io.compress.lz4.Lz4Compressor. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: TestLz4CompressorDecompressor.java    From big-c with Apache License 2.0 6 votes vote down vote up 
@Test
public void testSetInputWithBytesSizeMoreThenDefaultLz4CompressorByfferSize() {
  int BYTES_SIZE = 1024 * 64 + 1;
  try {
    Lz4Compressor compressor = new Lz4Compressor();
    byte[] bytes = generate(BYTES_SIZE);
    assertTrue("needsInput error !!!", compressor.needsInput());
    compressor.setInput(bytes, 0, bytes.length);
    byte[] emptyBytes = new byte[BYTES_SIZE];
    int csize = compressor.compress(emptyBytes, 0, bytes.length);
    assertTrue(
        "testSetInputWithBytesSizeMoreThenDefaultLz4CompressorByfferSize error !!!",
        csize != 0);
  } catch (Exception ex) {
    fail("testSetInputWithBytesSizeMoreThenDefaultLz4CompressorByfferSize ex error !!!");
  }
}
Example #2
Source File: CompressDecompressTester.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
/**
 * Method for compressor availability check
 */
private static <T extends Compressor, E extends Decompressor> boolean isAvailable(TesterPair<T, E> pair) {
  Compressor compressor = pair.compressor;

  if (compressor.getClass().isAssignableFrom(Lz4Compressor.class)
          && (NativeCodeLoader.isNativeCodeLoaded()))
    return true;

  else if (compressor.getClass().isAssignableFrom(BuiltInZlibDeflater.class)
          && NativeCodeLoader.isNativeCodeLoaded())
    return true;

  else if (compressor.getClass().isAssignableFrom(ZlibCompressor.class)) {
    return ZlibFactory.isNativeZlibLoaded(new Configuration());
  }              
  else if (compressor.getClass().isAssignableFrom(SnappyCompressor.class)
          && isNativeSnappyLoadable())
    return true;
  
  return false;      
}
Example #3
Source File: TestCompressorDecompressor.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
@Test
public void testCompressorDecompressor() {
  // no more for this data
  int SIZE = 44 * 1024;
  
  byte[] rawData = generate(SIZE);
  try {
    CompressDecompressTester.of(rawData)
        .withCompressDecompressPair(new SnappyCompressor(), new SnappyDecompressor())
        .withCompressDecompressPair(new Lz4Compressor(), new Lz4Decompressor())
        .withCompressDecompressPair(new BuiltInZlibDeflater(), new BuiltInZlibInflater())
        .withTestCases(ImmutableSet.of(CompressionTestStrategy.COMPRESS_DECOMPRESS_SINGLE_BLOCK,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_BLOCK,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_ERRORS,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_WITH_EMPTY_STREAM))
        .test();

  } catch (Exception ex) {
    fail("testCompressorDecompressor error !!!" + ex);
  }
}
Example #4
Source File: TestCompressorDecompressor.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
@Test
public void testCompressorDecompressorWithExeedBufferLimit() {
  int BYTE_SIZE = 100 * 1024;
  byte[] rawData = generate(BYTE_SIZE);
  try {
    CompressDecompressTester.of(rawData)
        .withCompressDecompressPair(
            new SnappyCompressor(BYTE_SIZE + BYTE_SIZE / 2),
            new SnappyDecompressor(BYTE_SIZE + BYTE_SIZE / 2))
        .withCompressDecompressPair(new Lz4Compressor(BYTE_SIZE),
            new Lz4Decompressor(BYTE_SIZE))
        .withTestCases(ImmutableSet.of(CompressionTestStrategy.COMPRESS_DECOMPRESS_SINGLE_BLOCK,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_BLOCK,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_ERRORS,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_WITH_EMPTY_STREAM))
        .test();

  } catch (Exception ex) {
    fail("testCompressorDecompressorWithExeedBufferLimit error !!!" + ex);
  }
}
Example #5
Source File: TestLz4CompressorDecompressor.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
@Test
public void testSetInputWithBytesSizeMoreThenDefaultLz4CompressorByfferSize() {
  int BYTES_SIZE = 1024 * 64 + 1;
  try {
    Lz4Compressor compressor = new Lz4Compressor();
    byte[] bytes = generate(BYTES_SIZE);
    assertTrue("needsInput error !!!", compressor.needsInput());
    compressor.setInput(bytes, 0, bytes.length);
    byte[] emptyBytes = new byte[BYTES_SIZE];
    int csize = compressor.compress(emptyBytes, 0, bytes.length);
    assertTrue(
        "testSetInputWithBytesSizeMoreThenDefaultLz4CompressorByfferSize error !!!",
        csize != 0);
  } catch (Exception ex) {
    fail("testSetInputWithBytesSizeMoreThenDefaultLz4CompressorByfferSize ex error !!!");
  }
}
Example #6
Source File: TestCompressorDecompressor.java    From big-c with Apache License 2.0 6 votes vote down vote up 
@Test
public void testCompressorDecompressorWithExeedBufferLimit() {
  int BYTE_SIZE = 100 * 1024;
  byte[] rawData = generate(BYTE_SIZE);
  try {
    CompressDecompressTester.of(rawData)
        .withCompressDecompressPair(
            new SnappyCompressor(BYTE_SIZE + BYTE_SIZE / 2),
            new SnappyDecompressor(BYTE_SIZE + BYTE_SIZE / 2))
        .withCompressDecompressPair(new Lz4Compressor(BYTE_SIZE),
            new Lz4Decompressor(BYTE_SIZE))
        .withTestCases(ImmutableSet.of(CompressionTestStrategy.COMPRESS_DECOMPRESS_SINGLE_BLOCK,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_BLOCK,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_ERRORS,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_WITH_EMPTY_STREAM))
        .test();

  } catch (Exception ex) {
    fail("testCompressorDecompressorWithExeedBufferLimit error !!!" + ex);
  }
}
Example #7
Source File: TestCompressorDecompressor.java    From big-c with Apache License 2.0 6 votes vote down vote up 
@Test
public void testCompressorDecompressor() {
  // no more for this data
  int SIZE = 44 * 1024;
  
  byte[] rawData = generate(SIZE);
  try {
    CompressDecompressTester.of(rawData)
        .withCompressDecompressPair(new SnappyCompressor(), new SnappyDecompressor())
        .withCompressDecompressPair(new Lz4Compressor(), new Lz4Decompressor())
        .withCompressDecompressPair(new BuiltInZlibDeflater(), new BuiltInZlibInflater())
        .withTestCases(ImmutableSet.of(CompressionTestStrategy.COMPRESS_DECOMPRESS_SINGLE_BLOCK,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_BLOCK,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_ERRORS,
                    CompressionTestStrategy.COMPRESS_DECOMPRESS_WITH_EMPTY_STREAM))
        .test();

  } catch (Exception ex) {
    fail("testCompressorDecompressor error !!!" + ex);
  }
}
Example #8
Source File: CompressDecompressTester.java    From big-c with Apache License 2.0 6 votes vote down vote up 
/**
 * Method for compressor availability check
 */
private static <T extends Compressor, E extends Decompressor> boolean isAvailable(TesterPair<T, E> pair) {
  Compressor compressor = pair.compressor;

  if (compressor.getClass().isAssignableFrom(Lz4Compressor.class)
          && (NativeCodeLoader.isNativeCodeLoaded()))
    return true;

  else if (compressor.getClass().isAssignableFrom(BuiltInZlibDeflater.class)
          && NativeCodeLoader.isNativeCodeLoaded())
    return true;

  else if (compressor.getClass().isAssignableFrom(ZlibCompressor.class)) {
    return ZlibFactory.isNativeZlibLoaded(new Configuration());
  }              
  else if (compressor.getClass().isAssignableFrom(SnappyCompressor.class)
          && isNativeSnappyLoadable())
    return true;
  
  return false;      
}
Example #9
Source File: Lz4Codec.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
/**
 * Get the type of {@link Compressor} needed by this {@link CompressionCodec}.
 *
 * @return the type of compressor needed by this codec.
 */
@Override
public Class<? extends Compressor> getCompressorType() {
  if (!isNativeCodeLoaded()) {
    throw new RuntimeException("native lz4 library not available");
  }

  return Lz4Compressor.class;
}
Example #10
Source File: TestLz4CompressorDecompressor.java    From big-c with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCompressDecompress() {
  int BYTE_SIZE = 1024 * 54;
  byte[] bytes = generate(BYTE_SIZE);
  Lz4Compressor compressor = new Lz4Compressor();
  try {
    compressor.setInput(bytes, 0, bytes.length);
    assertTrue("Lz4CompressDecompress getBytesRead error !!!",
        compressor.getBytesRead() > 0);
    assertTrue(
        "Lz4CompressDecompress getBytesWritten before compress error !!!",
        compressor.getBytesWritten() == 0);

    byte[] compressed = new byte[BYTE_SIZE];
    int cSize = compressor.compress(compressed, 0, compressed.length);
    assertTrue(
        "Lz4CompressDecompress getBytesWritten after compress error !!!",
        compressor.getBytesWritten() > 0);
    Lz4Decompressor decompressor = new Lz4Decompressor();
    // set as input for decompressor only compressed data indicated with cSize
    decompressor.setInput(compressed, 0, cSize);
    byte[] decompressed = new byte[BYTE_SIZE];
    decompressor.decompress(decompressed, 0, decompressed.length);

    assertTrue("testLz4CompressDecompress finished error !!!", decompressor.finished());      
    assertArrayEquals(bytes, decompressed);
    compressor.reset();
    decompressor.reset();
    assertTrue("decompressor getRemaining error !!!",decompressor.getRemaining() == 0);
  } catch (Exception e) {
    fail("testLz4CompressDecompress ex error!!!");
  }
}
Example #11
Source File: TestLz4CompressorDecompressor.java    From big-c with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCompressorCompressAIOBException() {
  try {
    Lz4Compressor compressor = new Lz4Compressor();
    byte[] bytes = generate(1024 * 6);
    compressor.setInput(bytes, 0, bytes.length);
    compressor.compress(new byte[] {}, 0, -1);
    fail("testCompressorCompressAIOBException error !!!");
  } catch (ArrayIndexOutOfBoundsException ex) {
    // expected
  } catch (Exception e) {
    fail("testCompressorCompressAIOBException ex error !!!");
  }
}
Example #12
Source File: TestLz4CompressorDecompressor.java    From big-c with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCompressorCompressNullPointerException() {
  try {
    Lz4Compressor compressor = new Lz4Compressor();
    byte[] bytes = generate(1024 * 6);
    compressor.setInput(bytes, 0, bytes.length);
    compressor.compress(null, 0, 0);
    fail("testCompressorCompressNullPointerException error !!!");
  } catch (NullPointerException ex) {
    // expected
  } catch (Exception e) {
    fail("testCompressorCompressNullPointerException ex error !!!");
  }
}
Example #13
Source File: TestLz4CompressorDecompressor.java    From big-c with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCompressorSetInputNullPointerException() {
  try {
    Lz4Compressor compressor = new Lz4Compressor();
    compressor.setInput(null, 0, 10);
    fail("testCompressorSetInputNullPointerException error !!!");
  } catch (NullPointerException ex) {
    // expected
  } catch (Exception e) {
    fail("testCompressorSetInputNullPointerException ex error !!!");
  }
}
Example #14
Source File: Lz4Codec.java    From big-c with Apache License 2.0 5 votes vote down vote up 
/**
 * Create a new {@link Compressor} for use by this {@link CompressionCodec}.
 *
 * @return a new compressor for use by this codec
 */
@Override
public Compressor createCompressor() {
  if (!isNativeCodeLoaded()) {
    throw new RuntimeException("native lz4 library not available");
  }
  int bufferSize = conf.getInt(
      CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZ4_BUFFERSIZE_KEY,
      CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZ4_BUFFERSIZE_DEFAULT);
  boolean useLz4HC = conf.getBoolean(
      CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZ4_USELZ4HC_KEY,
      CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZ4_USELZ4HC_DEFAULT);
  return new Lz4Compressor(bufferSize, useLz4HC);
}
Example #15
Source File: Lz4Codec.java    From big-c with Apache License 2.0 5 votes vote down vote up 
/**
 * Get the type of {@link Compressor} needed by this {@link CompressionCodec}.
 *
 * @return the type of compressor needed by this codec.
 */
@Override
public Class<? extends Compressor> getCompressorType() {
  if (!isNativeCodeLoaded()) {
    throw new RuntimeException("native lz4 library not available");
  }

  return Lz4Compressor.class;
}
Example #16
Source File: TestLz4CompressorDecompressor.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCompressDecompress() {
  int BYTE_SIZE = 1024 * 54;
  byte[] bytes = generate(BYTE_SIZE);
  Lz4Compressor compressor = new Lz4Compressor();
  try {
    compressor.setInput(bytes, 0, bytes.length);
    assertTrue("Lz4CompressDecompress getBytesRead error !!!",
        compressor.getBytesRead() > 0);
    assertTrue(
        "Lz4CompressDecompress getBytesWritten before compress error !!!",
        compressor.getBytesWritten() == 0);

    byte[] compressed = new byte[BYTE_SIZE];
    int cSize = compressor.compress(compressed, 0, compressed.length);
    assertTrue(
        "Lz4CompressDecompress getBytesWritten after compress error !!!",
        compressor.getBytesWritten() > 0);
    Lz4Decompressor decompressor = new Lz4Decompressor();
    // set as input for decompressor only compressed data indicated with cSize
    decompressor.setInput(compressed, 0, cSize);
    byte[] decompressed = new byte[BYTE_SIZE];
    decompressor.decompress(decompressed, 0, decompressed.length);

    assertTrue("testLz4CompressDecompress finished error !!!", decompressor.finished());      
    assertArrayEquals(bytes, decompressed);
    compressor.reset();
    decompressor.reset();
    assertTrue("decompressor getRemaining error !!!",decompressor.getRemaining() == 0);
  } catch (Exception e) {
    fail("testLz4CompressDecompress ex error!!!");
  }
}
Example #17
Source File: TestLz4CompressorDecompressor.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCompressorCompressAIOBException() {
  try {
    Lz4Compressor compressor = new Lz4Compressor();
    byte[] bytes = generate(1024 * 6);
    compressor.setInput(bytes, 0, bytes.length);
    compressor.compress(new byte[] {}, 0, -1);
    fail("testCompressorCompressAIOBException error !!!");
  } catch (ArrayIndexOutOfBoundsException ex) {
    // expected
  } catch (Exception e) {
    fail("testCompressorCompressAIOBException ex error !!!");
  }
}
Example #18
Source File: TestLz4CompressorDecompressor.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCompressorCompressNullPointerException() {
  try {
    Lz4Compressor compressor = new Lz4Compressor();
    byte[] bytes = generate(1024 * 6);
    compressor.setInput(bytes, 0, bytes.length);
    compressor.compress(null, 0, 0);
    fail("testCompressorCompressNullPointerException error !!!");
  } catch (NullPointerException ex) {
    // expected
  } catch (Exception e) {
    fail("testCompressorCompressNullPointerException ex error !!!");
  }
}
Example #19
Source File: TestLz4CompressorDecompressor.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCompressorSetInputNullPointerException() {
  try {
    Lz4Compressor compressor = new Lz4Compressor();
    compressor.setInput(null, 0, 10);
    fail("testCompressorSetInputNullPointerException error !!!");
  } catch (NullPointerException ex) {
    // expected
  } catch (Exception e) {
    fail("testCompressorSetInputNullPointerException ex error !!!");
  }
}
Example #20
Source File: Lz4Codec.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
/**
 * Create a new {@link Compressor} for use by this {@link CompressionCodec}.
 *
 * @return a new compressor for use by this codec
 */
@Override
public Compressor createCompressor() {
  if (!isNativeCodeLoaded()) {
    throw new RuntimeException("native lz4 library not available");
  }
  int bufferSize = conf.getInt(
      CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZ4_BUFFERSIZE_KEY,
      CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZ4_BUFFERSIZE_DEFAULT);
  boolean useLz4HC = conf.getBoolean(
      CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZ4_USELZ4HC_KEY,
      CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZ4_USELZ4HC_DEFAULT);
  return new Lz4Compressor(bufferSize, useLz4HC);
}
Example #21
Source File: Lz4Codec.java    From big-c with Apache License 2.0 4 votes vote down vote up 
public static String getLibraryName() {
  return Lz4Compressor.getLibraryName();
}
Example #22
Source File: Lz4Codec.java    From hadoop with Apache License 2.0 4 votes vote down vote up 
public static String getLibraryName() {
  return Lz4Compressor.getLibraryName();
}
Example #23
Source File: Lz4Codec.java    From datacollector with Apache License 2.0 4 votes vote down vote up 
public Lz4Codec() {
  super(Lz4Compressor.class, Lz4Decompressor.class, ".lz4");
}
Example #24
Source File: Lz4Codec.java    From datacollector with Apache License 2.0 4 votes vote down vote up 
@Override
public Compressor createCompressor() {
  return new Lz4Compressor(unsafe, getBufferSize(), useHC);
}