Package org.apache.giraph.utils

Examples of org.apache.giraph.utils.UnsafeByteArrayInputStream

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   * @return ExtendedDataInput object
   */
  public ExtendedDataInput createExtendedDataInput(
      byte[] buf, int off, int length) {
    if (useUnsafeSerialization) {
      return new UnsafeByteArrayInputStream(buf, off, length);
    } else {
      return new ExtendedByteArrayDataInput(buf, off, length);
    }
  }
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    assertEquals(0, partition.getEdgeCount());
    assertEquals(7, partition.getVertexCount());
    UnsafeByteArrayOutputStream outputStream = new
        UnsafeByteArrayOutputStream();
    partition.write(outputStream);
    UnsafeByteArrayInputStream inputStream = new UnsafeByteArrayInputStream(
        outputStream.getByteArray(), 0, outputStream.getPos());
    Partition<IntWritable, IntWritable, NullWritable,
        IntWritable> deserializatedPartition = conf.createPartition(-1,
        context);
    deserializatedPartition.readFields(inputStream);
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    long deserializeNanosStart;
    long deserializeNanos = 0;
    for (int i = 0; i < REPS; ++i) {
      deserializeNanosStart = SystemTime.get().getNanoseconds();
      UnsafeByteArrayInputStream inputStream = new
          UnsafeByteArrayInputStream(
          outputStream.getByteArray(), 0, outputStream.getPos());
      WritableUtils.reinitializeVertexFromDataInput(
          inputStream, readVertex, readVertex.getConf());
      deserializeNanos += Times.getNanosecondsSince(SystemTime.get(),
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  @Override
  public V getValue() {
    if (cachedValue != null) {
      return cachedValue; // Return always same instance
    }
    DataInput dis = new UnsafeByteArrayInputStream(valueBytes);
    cachedValue = getConf().createVertexValue();
    try {
      cachedValue.readFields(dis);
    } catch (IOException ioe) {
      throw new RuntimeException("Could not deserialize vertex value", ioe);
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    assertEquals(0, partition.getEdgeCount());
    assertEquals(7, partition.getVertexCount());
    UnsafeByteArrayOutputStream outputStream = new
        UnsafeByteArrayOutputStream();
    partition.write(outputStream);
    UnsafeByteArrayInputStream inputStream = new UnsafeByteArrayInputStream(
        outputStream.getByteArray(), 0, outputStream.getPos());
    Partition<IntWritable, IntWritable, NullWritable> deserializatedPartition =
        conf.createPartition(-1, context);
    deserializatedPartition.readFields(inputStream);
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    long deserializeNanosStart;
    long deserializeNanos = 0;
    for (int i = 0; i < REPS; ++i) {
      deserializeNanosStart = SystemTime.get().getNanoseconds();
      UnsafeByteArrayInputStream inputStream = new
          UnsafeByteArrayInputStream(
          outputStream.getByteArray(), 0, outputStream.getPos());
      WritableUtils.reinitializeVertexFromDataInput(
          inputStream, readVertex, readVertex.getConf());
      deserializeNanos += Times.getNanosecondsSince(SystemTime.get(),
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   * @return ExtendedDataInput object
   */
  public ExtendedDataInput createExtendedDataInput(
      byte[] buf, int off, int length) {
    if (useUnsafeSerialization) {
      return new UnsafeByteArrayInputStream(buf, off, length);
    } else {
      return new ExtendedByteArrayDataInput(buf, off, length);
    }
  }
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Related Classes of org.apache.giraph.utils.UnsafeByteArrayInputStream

  • org.apache.giraph.conf.ImmutableClassesGiraphConfiguration
  • org.apache.giraph.graph.ByteValueVertex
  • org.apache.giraph.graph.TestVertexAndEdges
  • org.apache.giraph.partition.TestPartitionStores
  • java.io.UTFDataFormatException
  • java.io.IOException
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