org.apache.drill.exec.store.parquet.metadata

Class FileMetadataCollector

java.lang.Object

org.apache.drill.exec.store.parquet.metadata.FileMetadataCollector

public class FileMetadataCollector
extends Object

Collects file metadata for the given parquet file. For empty parquet file will generate fake row group metadata based on file schema.

Constructor Summary

Constructors

Constructor and Description
FileMetadataCollector(org.apache.parquet.hadoop.metadata.ParquetMetadata metadata, org.apache.hadoop.fs.FileStatus file, org.apache.hadoop.fs.FileSystem fs, boolean allColumnsInteresting, boolean skipNonInteresting, Set<SchemaPath> columnSet, ParquetReaderConfig readerConfig)

Method Summary

Modifier and Type	Method and Description
Map<Metadata_V4.ColumnTypeMetadata_v4.Key,Metadata_V4.ColumnTypeMetadata_v4>	getColumnTypeInfo()
Metadata_V4.ParquetFileAndRowCountMetadata	getFileMetadata()

Methods inherited from class java.lang.Object

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

Constructor Detail

FileMetadataCollector

public FileMetadataCollector(org.apache.parquet.hadoop.metadata.ParquetMetadata metadata,
                             org.apache.hadoop.fs.FileStatus file,
                             org.apache.hadoop.fs.FileSystem fs,
                             boolean allColumnsInteresting,
                             boolean skipNonInteresting,
                             Set<SchemaPath> columnSet,
                             ParquetReaderConfig readerConfig)
                      throws IOException

Throws:

IOException

Method Detail

getFileMetadata

public Metadata_V4.ParquetFileAndRowCountMetadata getFileMetadata()

getColumnTypeInfo

public Map<Metadata_V4.ColumnTypeMetadata_v4.Key,Metadata_V4.ColumnTypeMetadata_v4> getColumnTypeInfo()