Package org.apache.hadoop.hbase.io.encoding.DataBlockEncoder

Examples of org.apache.hadoop.hbase.io.encoding.DataBlockEncoder.EncodedSeeker

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                        .withCompression(Algorithm.NONE)
                        .build();
    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    generateRandomTestData(kvset, batchId, includesTag, encoder, blkEncodingCtx, userDataStream);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = baosInMemory.toByteArray();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    verifySeeking(seeker, readBuffer, batchId);
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    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    ByteArrayOutputStream baosInMemory = new ByteArrayOutputStream();
    DataOutputStream userDataStream = new DataOutputStream(baosInMemory);
    generateFixedTestData(kvset, batchId, includesTag, encoder, blkEncodingCtx, userDataStream);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = baosInMemory.toByteArray();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    verifySeeking(seeker, readBuffer, batchId);
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                        .withIncludesTags(includesTag)
                        .withCompression(Algorithm.NONE).build();
    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    encoder.encodeKeyValues(dataBuffer, blkEncodingCtx);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = blkEncodingCtx.getOnDiskBytesWithHeader();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    seeker.setCurrentBuffer(readBuffer);

    // Seek before the first keyvalue;
    KeyValue seekKey = KeyValue.createFirstDeleteFamilyOnRow(getRowKey(batchId, 0), CF_BYTES);
    seeker.seekToKeyInBlock(seekKey.getBuffer(), seekKey.getKeyOffset(), seekKey.getKeyLength(),
        true);
    assertEquals(null, seeker.getKeyValue());

    // Seek before the middle keyvalue;
    seekKey = KeyValue.createFirstDeleteFamilyOnRow(getRowKey(batchId, NUM_ROWS_PER_BATCH / 3),
        CF_BYTES);
    seeker.seekToKeyInBlock(seekKey.getBuffer(), seekKey.getKeyOffset(), seekKey.getKeyLength(),
        true);
    assertNotNull(seeker.getKeyValue());
    assertArrayEquals(getRowKey(batchId, NUM_ROWS_PER_BATCH / 3 - 1), seeker.getKeyValue().getRow());

    // Seek before the last keyvalue;
    seekKey = KeyValue.createFirstDeleteFamilyOnRow(Bytes.toBytes("zzzz"), CF_BYTES);
    seeker.seekToKeyInBlock(seekKey.getBuffer(), seekKey.getKeyOffset(), seekKey.getKeyLength(),
        true);
    assertNotNull(seeker.getKeyValue());
    assertArrayEquals(getRowKey(batchId, NUM_ROWS_PER_BATCH - 1), seeker.getKeyValue().getRow());
  }
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                        .withCompression(Algorithm.NONE)
                        .build();
    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    encoder.encodeKeyValues(dataBuffer, blkEncodingCtx);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = blkEncodingCtx.getOnDiskBytesWithHeader();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    seeker.setCurrentBuffer(readBuffer);
    KeyValue previousKV = null;
    do {
      KeyValue currentKV = seeker.getKeyValue();
      System.out.println(currentKV);
      if (previousKV != null && KeyValue.COMPARATOR.compare(currentKV, previousKV) < 0) {
        dumpInputKVSet();
        fail("Current kv " + currentKV + " is smaller than previous keyvalue " + previousKV);
      }
      if (!includesTag) {
        assertFalse(currentKV.getTagsLength() > 0);
      } else {
        Assert.assertTrue(currentKV.getTagsLength() > 0);
      }
      previousKV = currentKV;
    } while (seeker.next());
  }
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                        .withCompression(Algorithm.NONE)
                        .build();
    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    encoder.encodeKeyValues(dataBuffer, blkEncodingCtx);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = blkEncodingCtx.getOnDiskBytesWithHeader();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    verifySeeking(seeker, readBuffer, batchId);
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                        .withCompression(Algorithm.NONE)
                        .build();
    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    encoder.encodeKeyValues(dataBuffer, blkEncodingCtx);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = blkEncodingCtx.getOnDiskBytesWithHeader();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    verifySeeking(seeker, readBuffer, batchId);
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                        .withIncludesTags(includesTag)
                        .withCompression(Algorithm.NONE).build();
    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    encoder.encodeKeyValues(dataBuffer, blkEncodingCtx);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = blkEncodingCtx.getOnDiskBytesWithHeader();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    seeker.setCurrentBuffer(readBuffer);

    // Seek before the first keyvalue;
    KeyValue seekKey = KeyValue.createFirstDeleteFamilyOnRow(getRowKey(batchId, 0), CF_BYTES);
    seeker.seekToKeyInBlock(seekKey.getBuffer(), seekKey.getKeyOffset(), seekKey.getKeyLength(),
        true);
    assertEquals(null, seeker.getKeyValue());

    // Seek before the middle keyvalue;
    seekKey = KeyValue.createFirstDeleteFamilyOnRow(getRowKey(batchId, NUM_ROWS_PER_BATCH / 3),
        CF_BYTES);
    seeker.seekToKeyInBlock(seekKey.getBuffer(), seekKey.getKeyOffset(), seekKey.getKeyLength(),
        true);
    assertNotNull(seeker.getKeyValue());
    assertArrayEquals(getRowKey(batchId, NUM_ROWS_PER_BATCH / 3 - 1), seeker.getKeyValue().getRow());

    // Seek before the last keyvalue;
    seekKey = KeyValue.createFirstDeleteFamilyOnRow(Bytes.toBytes("zzzz"), CF_BYTES);
    seeker.seekToKeyInBlock(seekKey.getBuffer(), seekKey.getKeyOffset(), seekKey.getKeyLength(),
        true);
    assertNotNull(seeker.getKeyValue());
    assertArrayEquals(getRowKey(batchId, NUM_ROWS_PER_BATCH - 1), seeker.getKeyValue().getRow());
  }
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                        .withCompression(Algorithm.NONE)
                        .build();
    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    encoder.encodeKeyValues(dataBuffer, blkEncodingCtx);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = blkEncodingCtx.getOnDiskBytesWithHeader();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    seeker.setCurrentBuffer(readBuffer);
    KeyValue previousKV = null;
    do {
      KeyValue currentKV = seeker.getKeyValue();
      System.out.println(currentKV);
      if (previousKV != null && KeyValue.COMPARATOR.compare(currentKV, previousKV) < 0) {
        dumpInputKVSet();
        fail("Current kv " + currentKV + " is smaller than previous keyvalue " + previousKV);
      }
      if (!includesTag) {
        assertFalse(currentKV.getTagsLengthUnsigned() > 0);
      } else {
        Assert.assertTrue(currentKV.getTagsLengthUnsigned() > 0);
      }
      previousKV = currentKV;
    } while (seeker.next());
  }
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                        .withCompression(Algorithm.NONE)
                        .build();
    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    encoder.encodeKeyValues(dataBuffer, blkEncodingCtx);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = blkEncodingCtx.getOnDiskBytesWithHeader();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    verifySeeking(seeker, readBuffer, batchId);
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                        .withCompression(Algorithm.NONE)
                        .build();
    HFileBlockEncodingContext blkEncodingCtx = new HFileBlockDefaultEncodingContext(
        DataBlockEncoding.PREFIX_TREE, new byte[0], meta);
    encoder.encodeKeyValues(dataBuffer, blkEncodingCtx);
    EncodedSeeker seeker = encoder.createSeeker(KeyValue.COMPARATOR,
        encoder.newDataBlockDecodingContext(meta));
    byte[] onDiskBytes = blkEncodingCtx.getOnDiskBytesWithHeader();
    ByteBuffer readBuffer = ByteBuffer.wrap(onDiskBytes, DataBlockEncoding.ID_SIZE,
        onDiskBytes.length - DataBlockEncoding.ID_SIZE);
    verifySeeking(seeker, readBuffer, batchId);
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Related Classes of org.apache.hadoop.hbase.io.encoding.DataBlockEncoder.EncodedSeeker

  • org.apache.hadoop.hbase.io.encoding.TestPrefixTreeEncoding
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