com.facebook.presto.parquet.cache

Class MetadataReader

java.lang.Object

com.facebook.presto.parquet.cache.MetadataReader

All Implemented Interfaces:

ParquetMetadataSource

public final class MetadataReader
extends Object
implements ParquetMetadataSource

Constructor Summary

Constructors

Constructor and Description
MetadataReader()

Method Summary

Modifier and Type	Method and Description
ParquetFileMetadata	getParquetMetadata(ParquetDataSource parquetDataSource, long fileSize, boolean cacheable, long modificationTime)
static ParquetFileMetadata	readFooter(ParquetDataSource parquetDataSource, long fileSize)
static ParquetFileMetadata	readFooter(ParquetDataSource parquetDataSource, long fileSize, long modificationTime)
static org.apache.parquet.column.statistics.Statistics<?>	readStats(org.apache.parquet.format.Statistics statistics, org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName type)

Methods inherited from class java.lang.Object

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

Constructor Detail

MetadataReader

public MetadataReader()

Method Detail

readFooter

public static ParquetFileMetadata readFooter(ParquetDataSource parquetDataSource,
                                             long fileSize)
                                      throws IOException

Throws:

IOException

readFooter

public static ParquetFileMetadata readFooter(ParquetDataSource parquetDataSource,
                                             long fileSize,
                                             long modificationTime)
                                      throws IOException

Throws:

IOException

readStats

public static org.apache.parquet.column.statistics.Statistics<?> readStats(org.apache.parquet.format.Statistics statistics,
                                                                           org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName type)

getParquetMetadata

public ParquetFileMetadata getParquetMetadata(ParquetDataSource parquetDataSource,
                                              long fileSize,
                                              boolean cacheable,
                                              long modificationTime)
                                       throws IOException

Specified by:

getParquetMetadata in interface ParquetMetadataSource

Throws:

IOException