Package org.apache.cassandra.transport

Examples of org.apache.cassandra.transport.FrameCompressor$LZ4Compressor

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  //test on ArrayIndexOutOfBoundsException in {@code compressor.setInput()}
  @Test
  public void testCompressorSetInputAIOBException() {
    try {
      Lz4Compressor compressor = new Lz4Compressor();
      compressor.setInput(new byte[] {}, -5, 10);
      fail("testCompressorSetInputAIOBException error !!!");
    } catch (ArrayIndexOutOfBoundsException ex) {
      // expected
    } catch (Exception ex) {
      fail("testCompressorSetInputAIOBException ex error !!!");
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  //test on NullPointerException in {@code compressor.compress()} 
  @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 !!!");
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        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);
  }
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      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);
    return new Lz4Compressor(bufferSize);
  }
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    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))
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    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))
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  //test on ArrayIndexOutOfBoundsException in {@code compressor.compress()} 
  @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 !!!");
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  // test Lz4Compressor compressor.compress() 
  @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 !!!");
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  // test compress/decompress process
  @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!!!");
    }
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    BlockDecompressorStream blockDecompressorStream = null;
    try {
      // compress empty stream
      bytesOut = new ByteArrayOutputStream();
      BlockCompressorStream blockCompressorStream = new BlockCompressorStream(
          bytesOut, new Lz4Compressor(), 1024, 0);
      // close without write
      blockCompressorStream.close();
      // check compressed output
      buf = bytesOut.toByteArray();
      assertEquals("empty stream compressed output size != 4", 4, buf.length);
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Related Classes of org.apache.cassandra.transport.FrameCompressor$LZ4Compressor

  • ch.usi.dslab.bezerra.netwrapper.codecs.CodecLZ4
  • io.druid.client.cache.LZ4Transcoder
  • io.netty.buffer.ByteBuf
  • net.jpountz.example.LZ4Example
  • net.jpountz.lz4.LZ4Factory
  • org.apache.cassandra.net.OutboundTcpConnection
  • org.apache.hadoop.io.compress.lz4.TestLz4CompressorDecompressor
  • org.apache.hadoop.io.compress.Lz4Codec
  • org.apache.hadoop.io.compress.Lz4hcCodec
  • org.apache.hadoop.io.compress.TestCompressorDecompressor
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