io.prestosql.orc.OrcReader.<init> java code examples

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private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(booleanNoNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, BOOLEAN),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(floatWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, REAL),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(floatWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, REAL),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(booleanWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, BOOLEAN),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(timestampNoNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, TIMESTAMP),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(decimalWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, DECIMAL_TYPE),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(tinyIntNoNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, TINYINT),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(decimalNoNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, DECIMAL_TYPE),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(varcharWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, VARCHAR),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(varcharNoNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, VARCHAR),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(doubleNoNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, DOUBLE),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(doubleWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, DOUBLE),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(tinyIntWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, TINYINT),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(booleanWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, BOOLEAN),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(timestampNoNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, TIMESTAMP),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(bigintWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, BIGINT),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(bigintNoNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, BIGINT),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(floatNoNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, REAL),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(decimalWithNullFile, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, DECIMAL_TYPE),
      OrcPredicate.TRUE,
      UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

private OrcRecordReader createRecordReader()
    throws IOException
{
  OrcDataSource dataSource = new FileOrcDataSource(dataPath, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), true);
  OrcReader orcReader = new OrcReader(dataSource, ORC, new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE), new DataSize(1, MEGABYTE));
  return orcReader.createRecordReader(
      ImmutableMap.of(0, DECIMAL_TYPE),
      OrcPredicate.TRUE,
      DateTimeZone.UTC, // arbitrary
      newSimpleAggregatedMemoryContext(),
      INITIAL_BATCH_SIZE);
}

Popular methods of OrcReader

createRecordReader
getColumnNames
getFooter
checkOrcVersion
Check to see if this ORC file is from a future version and if so, warn the user that we may not be a
isValidHeaderMagic
Does the file start with the ORC magic bytes?
validateFile
validateWrite
wrapWithCacheIfTiny

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How to use io.prestosql.orc.OrcReaderconstructor

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How to use
io.prestosql.orc.OrcReader
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