Package cascading.tuple.io

Examples of cascading.tuple.io.TupleInputStream

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    dataOutputStream.writeTuple( aTuple );

    dataOutputStream.flush();

    ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream( byteArrayOutputStream.toByteArray() );
    TupleInputStream dataInputStream = new HadoopTupleInputStream( byteArrayInputStream, new TupleSerialization().getElementReader() );

    Tuple newTuple = new Tuple();

    dataInputStream.readTuple( newTuple );

    assertEquals( aTuple, newTuple );
    }
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    output.close();

    assertEquals( "wrong size", 89967L, file.length() ); // just makes sure the file size doesnt change from expected

    TupleInputStream input = new HadoopTupleInputStream( new FileInputStream( file ), tupleSerialization.getElementReader() );

    int k = -1;
    for( int i = 0; i < 501; i++ )
      {
      Tuple tuple = input.readTuple();
      int value = tuple.getInteger( 0 );
      assertTrue( "wrong diff", value - k == 1 );
      assertTrue( "wrong type", tuple.getObject( 3 ) instanceof TestText );
      assertTrue( "wrong type", tuple.getObject( 4 ) instanceof Tuple );
      assertTrue( "wrong type", tuple.getObject( 5 ) instanceof BytesWritable );

      byte[] bytes = ( (BytesWritable) tuple.getObject( 5 ) ).getBytes();
      String string = new String( bytes, 0, bytes.length > 1 ? bytes.length - 1 : bytes.length, "UTF-8" );
      assertEquals( "wrong value", Integer.parseInt( string ), i );
      assertTrue( "wrong type", tuple.getObject( 6 ) instanceof BooleanWritable );
      k = value;
      }

    input.close();

    System.out.println( "time = " + ( System.currentTimeMillis() - time ) );
    }
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  public Tuple deserialize(byte[] bytes) throws IOException {
    initDeserializer();
    Tuple tuple = new Tuple();
    ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes);
    TupleInputStream tupleInputStream = new HadoopTupleInputStream(inputStream, serialization.getElementReader());
    tupleDeserializer.open(tupleInputStream);
    tupleDeserializer.deserialize(tuple);
    return tuple;
  }
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Related Classes of cascading.tuple.io.TupleInputStream

  • cascading.tuple.hadoop.HadoopSerializationPlatformTest
  • cascading.tuple.hadoop.TupleTest
  • cascading.tuple.Tuple
  • com.liveramp.cascading_ext.TupleSerializationUtil
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