Package org.apache.parquet.format

Class Util

java.lang.Object

org.apache.parquet.format.Util

public class Util
extends Object

Utility to read/write metadata We use the TCompactProtocol to serialize metadata

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Util.DefaultFileMetaDataConsumer	Simple default consumer that sets the fields
static class	Util.FileMetaDataConsumer	To read metadata in a streaming fashion.

Constructor Summary

Constructors

Constructor	Description
Util()

Method Summary

Modifier and Type	Method	Description
static BloomFilterHeader	readBloomFilterHeader(InputStream from)
static BloomFilterHeader	readBloomFilterHeader(InputStream from, BlockCipher.Decryptor decryptor, byte[] AAD)
static ColumnIndex	readColumnIndex(InputStream from)
static ColumnIndex	readColumnIndex(InputStream from, BlockCipher.Decryptor decryptor, byte[] AAD)
static ColumnMetaData	readColumnMetaData(InputStream from, BlockCipher.Decryptor decryptor, byte[] AAD)
static FileCryptoMetaData	readFileCryptoMetaData(InputStream from)
static FileMetaData	readFileMetaData(InputStream from)
static FileMetaData	readFileMetaData(InputStream from, boolean skipRowGroups)	reads the meta data from the stream
static FileMetaData	readFileMetaData(InputStream from, boolean skipRowGroups, BlockCipher.Decryptor decryptor, byte[] AAD)
static FileMetaData	readFileMetaData(InputStream from, BlockCipher.Decryptor decryptor, byte[] AAD)
static void	readFileMetaData(InputStream from, Util.FileMetaDataConsumer consumer)
static void	readFileMetaData(InputStream from, Util.FileMetaDataConsumer consumer, boolean skipRowGroups)
static void	readFileMetaData(InputStream input, Util.FileMetaDataConsumer consumer, boolean skipRowGroups, BlockCipher.Decryptor decryptor, byte[] AAD)
static void	readFileMetaData(InputStream from, Util.FileMetaDataConsumer consumer, BlockCipher.Decryptor decryptor, byte[] AAD)
static OffsetIndex	readOffsetIndex(InputStream from)
static OffsetIndex	readOffsetIndex(InputStream from, BlockCipher.Decryptor decryptor, byte[] AAD)
static PageHeader	readPageHeader(InputStream from)
static PageHeader	readPageHeader(InputStream from, BlockCipher.Decryptor decryptor, byte[] AAD)
static void	writeBloomFilterHeader(BloomFilterHeader header, OutputStream out)
static void	writeBloomFilterHeader(BloomFilterHeader header, OutputStream out, BlockCipher.Encryptor encryptor, byte[] AAD)
static void	writeColumnIndex(ColumnIndex columnIndex, OutputStream to)
static void	writeColumnIndex(ColumnIndex columnIndex, OutputStream to, BlockCipher.Encryptor encryptor, byte[] AAD)
static void	writeColumnMetaData(ColumnMetaData columnMetaData, OutputStream to, BlockCipher.Encryptor encryptor, byte[] AAD)
static void	writeFileCryptoMetaData(FileCryptoMetaData cryptoMetadata, OutputStream to)
static void	writeFileMetaData(FileMetaData fileMetadata, OutputStream to)
static void	writeFileMetaData(FileMetaData fileMetadata, OutputStream to, BlockCipher.Encryptor encryptor, byte[] AAD)
static void	writeOffsetIndex(OffsetIndex offsetIndex, OutputStream to)
static void	writeOffsetIndex(OffsetIndex offsetIndex, OutputStream to, BlockCipher.Encryptor encryptor, byte[] AAD)
static void	writePageHeader(PageHeader pageHeader, OutputStream to)
static void	writePageHeader(PageHeader pageHeader, OutputStream to, BlockCipher.Encryptor encryptor, byte[] AAD)

Methods inherited from class java.lang.Object

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

Constructor Detail

Util

public Util()

Method Detail

writeColumnIndex

public static void writeColumnIndex(ColumnIndex columnIndex,
                                    OutputStream to)
                             throws IOException

Throws:

IOException

writeColumnIndex

public static void writeColumnIndex(ColumnIndex columnIndex,
                                    OutputStream to,
                                    BlockCipher.Encryptor encryptor,
                                    byte[] AAD)
                             throws IOException

Throws:

IOException

readColumnIndex

public static ColumnIndex readColumnIndex(InputStream from)
                                   throws IOException

Throws:

IOException

readColumnIndex

public static ColumnIndex readColumnIndex(InputStream from,
                                          BlockCipher.Decryptor decryptor,
                                          byte[] AAD)
                                   throws IOException

Throws:

IOException

writeOffsetIndex

public static void writeOffsetIndex(OffsetIndex offsetIndex,
                                    OutputStream to)
                             throws IOException

Throws:

IOException

writeOffsetIndex

public static void writeOffsetIndex(OffsetIndex offsetIndex,
                                    OutputStream to,
                                    BlockCipher.Encryptor encryptor,
                                    byte[] AAD)
                             throws IOException

Throws:

IOException

readOffsetIndex

public static OffsetIndex readOffsetIndex(InputStream from)
                                   throws IOException

Throws:

IOException

readOffsetIndex

public static OffsetIndex readOffsetIndex(InputStream from,
                                          BlockCipher.Decryptor decryptor,
                                          byte[] AAD)
                                   throws IOException

Throws:

IOException

readBloomFilterHeader

public static BloomFilterHeader readBloomFilterHeader(InputStream from)
                                               throws IOException

Throws:

IOException

writeBloomFilterHeader

public static void writeBloomFilterHeader(BloomFilterHeader header,
                                          OutputStream out)
                                   throws IOException

Throws:

IOException

readBloomFilterHeader

public static BloomFilterHeader readBloomFilterHeader(InputStream from,
                                                      BlockCipher.Decryptor decryptor,
                                                      byte[] AAD)
                                               throws IOException

Throws:

IOException

writeBloomFilterHeader

public static void writeBloomFilterHeader(BloomFilterHeader header,
                                          OutputStream out,
                                          BlockCipher.Encryptor encryptor,
                                          byte[] AAD)
                                   throws IOException

Throws:

IOException

writePageHeader

public static void writePageHeader(PageHeader pageHeader,
                                   OutputStream to)
                            throws IOException

Throws:

IOException

writePageHeader

public static void writePageHeader(PageHeader pageHeader,
                                   OutputStream to,
                                   BlockCipher.Encryptor encryptor,
                                   byte[] AAD)
                            throws IOException

Throws:

IOException

readPageHeader

public static PageHeader readPageHeader(InputStream from)
                                 throws IOException

Throws:

IOException

readPageHeader

public static PageHeader readPageHeader(InputStream from,
                                        BlockCipher.Decryptor decryptor,
                                        byte[] AAD)
                                 throws IOException

Throws:

IOException

writeFileMetaData

public static void writeFileMetaData(FileMetaData fileMetadata,
                                     OutputStream to)
                              throws IOException

Throws:

IOException

writeFileMetaData

public static void writeFileMetaData(FileMetaData fileMetadata,
                                     OutputStream to,
                                     BlockCipher.Encryptor encryptor,
                                     byte[] AAD)
                              throws IOException

Throws:

IOException

readFileMetaData

public static FileMetaData readFileMetaData(InputStream from)
                                     throws IOException

Throws:

IOException

readFileMetaData

public static FileMetaData readFileMetaData(InputStream from,
                                            BlockCipher.Decryptor decryptor,
                                            byte[] AAD)
                                     throws IOException

Throws:

IOException

writeColumnMetaData

public static void writeColumnMetaData(ColumnMetaData columnMetaData,
                                       OutputStream to,
                                       BlockCipher.Encryptor encryptor,
                                       byte[] AAD)
                                throws IOException

Throws:

IOException

readColumnMetaData

public static ColumnMetaData readColumnMetaData(InputStream from,
                                                BlockCipher.Decryptor decryptor,
                                                byte[] AAD)
                                         throws IOException

Throws:

IOException

readFileMetaData

public static FileMetaData readFileMetaData(InputStream from,
                                            boolean skipRowGroups)
                                     throws IOException

reads the meta data from the stream

Parameters:

from - the stream to read the metadata from

skipRowGroups - whether row groups should be skipped

Returns:

the resulting metadata

Throws:

IOException - if any I/O error occurs during the reading

readFileMetaData

public static FileMetaData readFileMetaData(InputStream from,
                                            boolean skipRowGroups,
                                            BlockCipher.Decryptor decryptor,
                                            byte[] AAD)
                                     throws IOException

Throws:

IOException

writeFileCryptoMetaData

public static void writeFileCryptoMetaData(FileCryptoMetaData cryptoMetadata,
                                           OutputStream to)
                                    throws IOException

Throws:

IOException

readFileCryptoMetaData

public static FileCryptoMetaData readFileCryptoMetaData(InputStream from)
                                                 throws IOException

Throws:

IOException

readFileMetaData

public static void readFileMetaData(InputStream from,
                                    Util.FileMetaDataConsumer consumer)
                             throws IOException

Throws:

IOException

readFileMetaData

public static void readFileMetaData(InputStream from,
                                    Util.FileMetaDataConsumer consumer,
                                    BlockCipher.Decryptor decryptor,
                                    byte[] AAD)
                             throws IOException

Throws:

IOException

readFileMetaData

public static void readFileMetaData(InputStream from,
                                    Util.FileMetaDataConsumer consumer,
                                    boolean skipRowGroups)
                             throws IOException

Throws:

IOException

readFileMetaData

public static void readFileMetaData(InputStream input,
                                    Util.FileMetaDataConsumer consumer,
                                    boolean skipRowGroups,
                                    BlockCipher.Decryptor decryptor,
                                    byte[] AAD)
                             throws IOException

Throws:

IOException