Package org.apache.flink.orc.writer

Class PhysicalWriterImpl

java.lang.Object

org.apache.flink.orc.writer.PhysicalWriterImpl

All Implemented Interfaces:

org.apache.orc.PhysicalWriter

Direct Known Subclasses:

NoHivePhysicalWriterImpl

@Internal
public class PhysicalWriterImpl
extends Object
implements org.apache.orc.PhysicalWriter

A slightly customised clone of PhysicalFsWriter.

Whereas PhysicalFsWriter implementation works on the basis of a Path, this implementation leverages Flink's FSDataOutputStream to write the compressed data.

NOTE: If the ORC dependency version is updated, this file may have to be updated as well to be in sync with the new version's PhysicalFsWriter.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.orc.PhysicalWriter

org.apache.orc.PhysicalWriter.OutputReceiver

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.orc.impl.OutStream	writer

Constructor Summary

Constructors

Constructor	Description
PhysicalWriterImpl(FSDataOutputStream out, org.apache.orc.OrcFile.WriterOptions opts)

Method Summary

Modifier and Type	Method	Description
void	appendRawStripe(ByteBuffer buffer, org.apache.orc.OrcProto.StripeInformation.Builder dirEntry)
void	close()
org.apache.orc.PhysicalWriter.OutputReceiver	createDataStream(org.apache.orc.impl.StreamName name)
void	finalizeStripe(org.apache.orc.OrcProto.StripeFooter.Builder footerBuilder, org.apache.orc.OrcProto.StripeInformation.Builder dirEntry)
void	flush()
org.apache.orc.CompressionCodec	getCompressionCodec()
long	getFileBytes(int column)
void	writeBloomFilter(org.apache.orc.impl.StreamName name, org.apache.orc.OrcProto.BloomFilterIndex.Builder bloom, org.apache.orc.CompressionCodec codec)
protected void	writeFileFooter(org.apache.orc.OrcProto.Footer footer)
void	writeFileFooter(org.apache.orc.OrcProto.Footer.Builder builder)
void	writeFileMetadata(org.apache.orc.OrcProto.Metadata.Builder builder)
void	writeHeader()
void	writeIndex(org.apache.orc.impl.StreamName name, org.apache.orc.OrcProto.RowIndex.Builder index, org.apache.orc.CompressionCodec codec)
protected void	writeMetadata(org.apache.orc.OrcProto.Metadata metadata)
long	writePostScript(org.apache.orc.OrcProto.PostScript.Builder builder)
protected void	writeStripeFooter(org.apache.orc.OrcProto.StripeFooter footer)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

writer

protected final org.apache.orc.impl.OutStream writer

Constructor Detail

PhysicalWriterImpl

public PhysicalWriterImpl(FSDataOutputStream out,
                          org.apache.orc.OrcFile.WriterOptions opts)
                   throws IOException

Throws:

IOException

Method Detail

writeHeader

public void writeHeader()
                 throws IOException

Specified by:

writeHeader in interface org.apache.orc.PhysicalWriter

Throws:

IOException

createDataStream

public org.apache.orc.PhysicalWriter.OutputReceiver createDataStream(org.apache.orc.impl.StreamName name)
                                                              throws IOException

Specified by:

createDataStream in interface org.apache.orc.PhysicalWriter

Throws:

IOException

writeIndex

public void writeIndex(org.apache.orc.impl.StreamName name,
                       org.apache.orc.OrcProto.RowIndex.Builder index,
                       org.apache.orc.CompressionCodec codec)
                throws IOException

Specified by:

writeIndex in interface org.apache.orc.PhysicalWriter

Throws:

IOException

writeBloomFilter

public void writeBloomFilter(org.apache.orc.impl.StreamName name,
                             org.apache.orc.OrcProto.BloomFilterIndex.Builder bloom,
                             org.apache.orc.CompressionCodec codec)
                      throws IOException

Specified by:

writeBloomFilter in interface org.apache.orc.PhysicalWriter

Throws:

IOException

finalizeStripe

public void finalizeStripe(org.apache.orc.OrcProto.StripeFooter.Builder footerBuilder,
                           org.apache.orc.OrcProto.StripeInformation.Builder dirEntry)
                    throws IOException

Specified by:

finalizeStripe in interface org.apache.orc.PhysicalWriter

Throws:

IOException

writeFileMetadata

public void writeFileMetadata(org.apache.orc.OrcProto.Metadata.Builder builder)
                       throws IOException

Specified by:

writeFileMetadata in interface org.apache.orc.PhysicalWriter

Throws:

IOException

writeFileFooter

public void writeFileFooter(org.apache.orc.OrcProto.Footer.Builder builder)
                     throws IOException

Specified by:

writeFileFooter in interface org.apache.orc.PhysicalWriter

Throws:

IOException

writePostScript

public long writePostScript(org.apache.orc.OrcProto.PostScript.Builder builder)
                     throws IOException

Specified by:

writePostScript in interface org.apache.orc.PhysicalWriter

Throws:

IOException

close

public void close()

Specified by:

close in interface org.apache.orc.PhysicalWriter

flush

public void flush()
           throws IOException

Specified by:

flush in interface org.apache.orc.PhysicalWriter

Throws:

IOException

appendRawStripe

public void appendRawStripe(ByteBuffer buffer,
                            org.apache.orc.OrcProto.StripeInformation.Builder dirEntry)
                     throws IOException

Specified by:

appendRawStripe in interface org.apache.orc.PhysicalWriter

Throws:

IOException

getCompressionCodec

public org.apache.orc.CompressionCodec getCompressionCodec()

Specified by:

getCompressionCodec in interface org.apache.orc.PhysicalWriter

getFileBytes

public long getFileBytes(int column)

Specified by:

getFileBytes in interface org.apache.orc.PhysicalWriter

writeMetadata

protected void writeMetadata(org.apache.orc.OrcProto.Metadata metadata)
                      throws IOException

Throws:

IOException

writeFileFooter

protected void writeFileFooter(org.apache.orc.OrcProto.Footer footer)
                        throws IOException

Throws:

IOException

writeStripeFooter

protected void writeStripeFooter(org.apache.orc.OrcProto.StripeFooter footer)
                          throws IOException

Throws:

IOException