Package cascading.tuple.io

Examples of cascading.tuple.io.TupleOutputStream$TupleElementWriter

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    long start = System.currentTimeMillis();
    spillListener.notifyWriteSpillBegin( this, current.size(), spillStrategy.getSpillReason( this ) );

    File file = createTempFile();
    TupleOutputStream dataOutputStream = createTupleOutputStream( file );

    try
      {
      writeList( dataOutputStream, current );
      }
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  public void testWritableCompareReadWrite() throws IOException
    {
    Tuple aTuple = new Tuple( new TestWritableComparable( "Just My Luck" ), "ClaudiaPuig", "3.0", "LisaRose", "3.0", true );

    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    TupleOutputStream dataOutputStream = new HadoopTupleOutputStream( byteArrayOutputStream, new TupleSerialization().getElementWriter() );

    dataOutputStream.writeTuple( aTuple );

    dataOutputStream.flush();

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

    Tuple newTuple = new Tuple();
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    File file = new File( getOutputPath( "serialization" ) );

    file.mkdirs();
    file = new File( file, "/test.bytes" );

    TupleOutputStream output = new HadoopTupleOutputStream( new FileOutputStream( file, false ), tupleSerialization.getElementWriter() );

    for( int i = 0; i < 501; i++ ) // 501 is arbitrary
      {
      String aString = "string number " + i;
      double random = Math.random();

      output.writeTuple( new Tuple( i, aString, random, new TestText( aString ), new Tuple( "inner tuple", new BytesWritable( "some string".getBytes() ) ), new BytesWritable( Integer.toString( i ).getBytes( "UTF-8" ) ), new BooleanWritable( false ) ) );
      }

    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() );
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Related Classes of cascading.tuple.io.TupleOutputStream$TupleElementWriter

  • cascading.tuple.collect.SpillableTupleList
  • cascading.tuple.hadoop.HadoopSerializationPlatformTest
  • cascading.tuple.hadoop.TupleTest
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