org.apache.parquet.hadoop.util

Class ColumnEncryptor

java.lang.Object

org.apache.parquet.hadoop.util.ColumnEncryptor

Deprecated.

@Deprecated
public class ColumnEncryptor
extends Object

This class is for fast rewriting existing file with column encryption

For columns to be encrypted, all the pages of those columns are read, but decompression/decoding, it is encrypted immediately and write back.

For columns not to be encrypted, the whole column chunk will be appended directly to writer.

Constructor Summary

Constructors

Constructor and Description
ColumnEncryptor(org.apache.hadoop.conf.Configuration conf) Deprecated.

Method Summary

Modifier and Type	Method and Description
static Set<ColumnPath>	convertToColumnPaths(List<String> cols) Deprecated.
void	encryptColumns(String inputFile, String outputFile, List<String> paths, FileEncryptionProperties fileEncryptionProperties) Deprecated. Given the input file, encrypt the columns specified by paths, and output the file.
byte[]	readBlock(int length, CompressionConverter.TransParquetFileReader reader) Deprecated.
BytesInput	readBlockAllocate(int length, CompressionConverter.TransParquetFileReader reader) Deprecated.

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnEncryptor

public ColumnEncryptor(org.apache.hadoop.conf.Configuration conf)

Deprecated.

Method Detail

encryptColumns

public void encryptColumns(String inputFile,
                           String outputFile,
                           List<String> paths,
                           FileEncryptionProperties fileEncryptionProperties)
                    throws IOException

Deprecated.

Given the input file, encrypt the columns specified by paths, and output the file. The encryption settings can be specified in the parameter of fileEncryptionProperties

Parameters:

inputFile - Input file

outputFile - Output file

paths - columns to be encrypted

fileEncryptionProperties - FileEncryptionProperties of the file

Throws:

IOException

readBlock

public byte[] readBlock(int length,
                        CompressionConverter.TransParquetFileReader reader)
                 throws IOException

Deprecated.

Throws:

IOException

readBlockAllocate

public BytesInput readBlockAllocate(int length,
                                    CompressionConverter.TransParquetFileReader reader)
                             throws IOException

Deprecated.

Throws:

IOException

convertToColumnPaths

public static Set<ColumnPath> convertToColumnPaths(List<String> cols)

Deprecated.