Examples of org.apache.hadoop.io.IntWritable.readFields()

org.apache.hadoop.io.IntWritable.readFields()


    ByteArrayInputStream bis = new ByteArrayInputStream(decompressed);
    DataInputStream dis = new DataInputStream(bis);


    IntWritable c = new IntWritable();
    c.readFields(dis);
    assertEquals(123, c.get());


    IntWritable d = new IntWritable();
    d.readFields(dis);
    assertEquals(321, d.get());

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    IntWritable c = new IntWritable();
    c.readFields(dis);
    assertEquals(123, c.get());


    IntWritable d = new IntWritable();
    d.readFields(dis);
    assertEquals(321, d.get());
  }
}

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      inStream.seek(indexRecord.getStartOffset());
      IFile.Reader reader = new IFile.Reader(inStream, indexRecord.getPartLength(), codec, null,
          null, false, 0, -1);
      while (reader.nextRawKey(keyBuffer)) {
        reader.nextRawValue(valBuffer);
        keyDeser.readFields(keyBuffer);
        valDeser.readFields(valBuffer);
        int partition = partitioner.getPartition(keyDeser, valDeser, numOutputs);
        assertTrue(expectedValues.get(partition).remove(keyDeser.get(), valDeser.get()));
      }
      inStream.close();

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  }
  
  /** read the int value */
  static int readInt(DataInput in) throws IOException {
    IntWritable uInt = TL_DATA.get().U_INT;
    uInt.readFields(in);
    return uInt.get();
  }
  
  /** write the int value */
  static void writeInt(int value, DataOutputStream out) throws IOException {

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    DirectByteBufferInputStream inStream = new DirectByteBufferInputStream();


    inStream.setBuffer(new SpilledByteBuffer(buffer, 400));
    for (int i = 0; i < 100; ++i) {
      intWritable.readFields(inStream);
      assertEquals(i, intWritable.get());
    }


    assertFalse(inStream.hasDataToRead());
    assertTrue(inStream.hasUnmarkData());

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    buffer.flip();


    inStream.setBuffer(new SpilledByteBuffer(buffer, 400));


    // Read previous data
    intWritable.readFields(inStream);
    assertEquals(99, intWritable.get());


    for (int i = 0; i < 100; ++i) {
      intWritable.readFields(inStream);
      assertEquals(i, intWritable.get());

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    // Read previous data
    intWritable.readFields(inStream);
    assertEquals(99, intWritable.get());


    for (int i = 0; i < 100; ++i) {
      intWritable.readFields(inStream);
      assertEquals(i, intWritable.get());
    }


    assertFalse(inStream.hasDataToRead());
    assertTrue(inStream.hasUnmarkData());

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    inStream.setBuffer(new SpilledByteBuffer(buffer, 400));


    // Read previous data with resized intermediate buffer
    for (int i = 100; i < 400; ++i) {
      intWritable.readFields(inStream);
      assertEquals(i, intWritable.get());
    }


    for (int i = 0; i < 100; ++i) {
      intWritable.readFields(inStream);

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      intWritable.readFields(inStream);
      assertEquals(i, intWritable.get());
    }


    for (int i = 0; i < 100; ++i) {
      intWritable.readFields(inStream);
      assertEquals(i, intWritable.get());
    }


    assertFalse(inStream.hasDataToRead());
    assertFalse(inStream.hasUnmarkData());

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          syncReadStream);
      buffer.clear();
      inStream.setBuffer(buffer);


      for (int i = 0; i < 200; ++i) {
        intWritable.readFields(inStream);
        assertEquals(intWritable.get(), i);
      }


      intWritable.readFields(inStream);
      assertEquals(intWritable.get(), 199);

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