com.facebook.presto.orc.metadata

Class OrcMetadataReader

java.lang.Object

com.facebook.presto.orc.metadata.OrcMetadataReader

All Implemented Interfaces:

MetadataReader

public class OrcMetadataReader
extends Object
implements MetadataReader

Constructor Summary

Constructors

Constructor and Description
OrcMetadataReader(RuntimeStats runtimeStats)

Method Summary

Modifier and Type	Method and Description
static io.airlift.slice.Slice	maxStringTruncateToValidRange(io.airlift.slice.Slice value, PostScript.HiveWriterVersion version)
static io.airlift.slice.Slice	minStringTruncateToValidRange(io.airlift.slice.Slice value, PostScript.HiveWriterVersion version)
List<HiveBloomFilter>	readBloomFilterIndexes(InputStream inputStream)
Footer	readFooter(PostScript.HiveWriterVersion hiveWriterVersion, InputStream inputStream, DwrfEncryptionProvider dwrfEncryptionProvider, DwrfKeyProvider dwrfKeyProvider, OrcDataSource orcDataSource, Optional<OrcDecompressor> decompressor)
Metadata	readMetadata(PostScript.HiveWriterVersion hiveWriterVersion, InputStream inputStream)
PostScript	readPostScript(byte[] data, int offset, int length)
List<RowGroupIndex>	readRowIndexes(PostScript.HiveWriterVersion hiveWriterVersion, InputStream inputStream)
StripeFooter	readStripeFooter(OrcDataSourceId orcDataSourceId, List<OrcType> types, InputStream inputStream)

Methods inherited from class java.lang.Object

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

Constructor Detail

OrcMetadataReader

public OrcMetadataReader(RuntimeStats runtimeStats)

Method Detail

readPostScript

public PostScript readPostScript(byte[] data,
                                 int offset,
                                 int length)
                          throws IOException

Specified by:

readPostScript in interface MetadataReader

Throws:

IOException

readMetadata

public Metadata readMetadata(PostScript.HiveWriterVersion hiveWriterVersion,
                             InputStream inputStream)
                      throws IOException

Specified by:

readMetadata in interface MetadataReader

Throws:

IOException

readFooter

public Footer readFooter(PostScript.HiveWriterVersion hiveWriterVersion,
                         InputStream inputStream,
                         DwrfEncryptionProvider dwrfEncryptionProvider,
                         DwrfKeyProvider dwrfKeyProvider,
                         OrcDataSource orcDataSource,
                         Optional<OrcDecompressor> decompressor)
                  throws IOException

Specified by:

readFooter in interface MetadataReader

Throws:

IOException

readStripeFooter

public StripeFooter readStripeFooter(OrcDataSourceId orcDataSourceId,
                                     List<OrcType> types,
                                     InputStream inputStream)
                              throws IOException

Specified by:

readStripeFooter in interface MetadataReader

Throws:

IOException

readRowIndexes

public List<RowGroupIndex> readRowIndexes(PostScript.HiveWriterVersion hiveWriterVersion,
                                          InputStream inputStream)
                                   throws IOException

Specified by:

readRowIndexes in interface MetadataReader

Throws:

IOException

readBloomFilterIndexes

public List<HiveBloomFilter> readBloomFilterIndexes(InputStream inputStream)
                                             throws IOException

Specified by:

readBloomFilterIndexes in interface MetadataReader

Throws:

IOException

maxStringTruncateToValidRange

public static io.airlift.slice.Slice maxStringTruncateToValidRange(io.airlift.slice.Slice value,
                                                                   PostScript.HiveWriterVersion version)

minStringTruncateToValidRange

public static io.airlift.slice.Slice minStringTruncateToValidRange(io.airlift.slice.Slice value,
                                                                   PostScript.HiveWriterVersion version)