Package org.apache.hadoop.io

Examples of org.apache.hadoop.io.BinaryComparable

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     * not happen, but is important enough that we want to find out and work around it if some
     * optimized change causes RSO to pass on tags.
     */
    private void sanityCheckKeyForTag() throws SerDeException {
      if (hasTag != null) return;
      BinaryComparable b = (BinaryComparable)key;
      Object o = keySerDe.deserialize(key);
      StructObjectInspector soi = (StructObjectInspector)keySerDe.getObjectInspector();
      List<? extends StructField> fields = soi.getAllStructFieldRefs();
      Object[] data = new Object[fields.size()];
      List<ObjectInspector> fois = new ArrayList<ObjectInspector>(fields.size());
      for (int i = 0; i < fields.size(); i++) {
        data[i] = soi.getStructFieldData(o, fields.get(i));
        fois.add(fields.get(i).getFieldObjectInspector());
      }
      Output output = new Output();
      BinarySortableSerDe.serializeStruct(output, data, fois, new boolean[fields.size()]);
      hasTag = (output.getLength() != b.getLength());
      if (hasTag) {
        LOG.error("Tag found in keys and will be removed. This should not happen.");
        if (output.getLength() != (b.getLength() - 1)) {
          throw new SerDeException(
              "Unexpected tag: " + b.getLength() + " reserialized to " + output.getLength());
        }
      }
    }
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    @Override
    public void writeValue(RandomAccessOutput dest) throws SerDeException {
      if (!(value instanceof BinaryComparable)) {
        throw new SerDeException("Unexpected type " + value.getClass().getCanonicalName());
      }
      BinaryComparable b = (BinaryComparable)value;
      dest.write(b.getBytes(), 0, b.getLength());
    }
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  public boolean contains(final ByteSequence bsrow) {
    if (bsrow == null) {
      throw new IllegalArgumentException("Passing null to contains is ambiguous, could be in first or last extent of table");
    }

    BinaryComparable row = new BinaryComparable() {

      @Override
      public int getLength() {
        return bsrow.length();
      }
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  class KVReaderComparator implements Comparator<KeyValuesReader> {

    @Override
    public int compare(KeyValuesReader kvReadr1, KeyValuesReader kvReadr2) {
      try {
        BinaryComparable key1 = (BinaryComparable) kvReadr1.getCurrentKey();
        BinaryComparable key2 = (BinaryComparable) kvReadr2.getCurrentKey();
        return key1.compareTo(key2);
      } catch (IOException e) {
        l4j.error("Caught exception while reading shuffle input", e);
        //die!
        throw new RuntimeException(e);
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  public Object deserialize(Writable field) throws SerDeException {
    if (byteArrayRef == null) {
      byteArrayRef = new ByteArrayRef();
    }
    if (field instanceof BinaryComparable) {
      BinaryComparable b = (BinaryComparable) field;
      if (b.getLength() == 0) {
        return null;
      }
      // For backward-compatibility with hadoop 0.17
      byteArrayRef.setData(b.getBytes());
      cachedLazyBinaryStruct.init(byteArrayRef, 0, b.getLength());
    } else if (field instanceof Text) {
      Text t = (Text) field;
      if (t.getLength() == 0) {
        return null;
      }
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  public void testDefaultOffsets() {
    Configuration conf = new Configuration();
    BinaryPartitioner<?> partitioner =
      ReflectionUtils.newInstance(BinaryPartitioner.class, conf);
   
    BinaryComparable key1 = new BytesWritable(new byte[] { 1, 2, 3, 4, 5 });
    BinaryComparable key2 = new BytesWritable(new byte[] { 1, 2, 3, 4, 5 });
    int partition1 = partitioner.getPartition(key1, null, 10);
    int partition2 = partitioner.getPartition(key2, null, 10);
    assertEquals(partition1, partition2);
   
    key1 = new BytesWritable(new byte[] { 1, 2, 3, 4, 5 });
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    assertTrue(partition1 != partition2);
  }
 
  public void testCustomOffsets() {
    Configuration conf = new Configuration();
    BinaryComparable key1 = new BytesWritable(new byte[] { 1, 2, 3, 4, 5 });
    BinaryComparable key2 = new BytesWritable(new byte[] { 6, 2, 3, 7, 8 });
   
    BinaryPartitioner.setOffsets(conf, 1, -3);
    BinaryPartitioner<?> partitioner =
      ReflectionUtils.newInstance(BinaryPartitioner.class, conf);
    int partition1 = partitioner.getPartition(key1, null, 10);
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  public void testLowerBound() {
    Configuration conf = new Configuration();
    BinaryPartitioner.setLeftOffset(conf, 0);
    BinaryPartitioner<?> partitioner =
      ReflectionUtils.newInstance(BinaryPartitioner.class, conf);
    BinaryComparable key1 = new BytesWritable(new byte[] { 1, 2, 3, 4, 5 });
    BinaryComparable key2 = new BytesWritable(new byte[] { 6, 2, 3, 4, 5 });
    int partition1 = partitioner.getPartition(key1, null, 10);
    int partition2 = partitioner.getPartition(key2, null, 10);
    assertTrue(partition1 != partition2);
  }
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  public void testUpperBound() {
    Configuration conf = new Configuration();
    BinaryPartitioner.setRightOffset(conf, 4);
    BinaryPartitioner<?> partitioner =
      ReflectionUtils.newInstance(BinaryPartitioner.class, conf);
    BinaryComparable key1 = new BytesWritable(new byte[] { 1, 2, 3, 4, 5 });
    BinaryComparable key2 = new BytesWritable(new byte[] { 1, 2, 3, 4, 6 });
    int partition1 = partitioner.getPartition(key1, null, 10);
    int partition2 = partitioner.getPartition(key2, null, 10);
    assertTrue(partition1 != partition2);
  }
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  public Object deserialize(Writable field) throws SerDeException {
    if (byteArrayRef == null) {
      byteArrayRef = new ByteArrayRef();
    }
    if (field instanceof BinaryComparable) {
      BinaryComparable b = (BinaryComparable) field;
      if (b.getLength() == 0) {
        return null;
      }
      // For backward-compatibility with hadoop 0.17
      byteArrayRef.setData(b.getBytes());
      cachedLazyBinaryStruct.init(byteArrayRef, 0, b.getLength());
    } else if (field instanceof Text) {
      Text t = (Text) field;
      if (t.getLength() == 0) {
        return null;
      }
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Related Classes of org.apache.hadoop.io.BinaryComparable

  • org.apache.accumulo.core.data.KeyExtent
  • org.apache.hadoop.hive.ql.exec.persistence.MapJoinBytesTableContainer$LazyBinaryKvWriter
  • org.apache.hadoop.hive.ql.exec.ReduceSinkOperator
  • org.apache.hadoop.hive.ql.exec.tez.tools.InputMerger$KVReaderComparator
  • org.apache.hadoop.hive.ql.exec.tez.tools.KeyValuesInputMerger$KVReaderComparator
  • org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
  • org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe
  • org.apache.hadoop.mapreduce.lib.partition.TestBinaryPartitioner
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