org.apache.parquet.crypto.keytools

Class HadoopFSKeyMaterialStore

java.lang.Object

org.apache.parquet.crypto.keytools.HadoopFSKeyMaterialStore

All Implemented Interfaces:

FileKeyMaterialStore

public class HadoopFSKeyMaterialStore
extends Object
implements FileKeyMaterialStore

Field Summary

Fields

Modifier and Type	Field and Description
static String	KEY_MATERIAL_FILE_PREFIX
static String	KEY_MATERIAL_FILE_SUFFFIX
static String	TEMP_FILE_PREFIX

Method Summary

Modifier and Type	Method and Description
void	addKeyMaterial(String keyIDInFile, String keyMaterial) Add key material for one encryption key.
Set<String>	getKeyIDSet()
String	getKeyMaterial(String keyIDInFile) Get key material
void	initialize(org.apache.hadoop.fs.Path parquetFilePath, org.apache.hadoop.conf.Configuration hadoopConfig, boolean tempStore) Initializes key material store for a parquet file.
void	moveMaterialTo(FileKeyMaterialStore keyMaterialStore) Move key material to another store.
void	removeMaterial() Remove key material from persistent store.
void	saveMaterial() After key material was added for all keys in the given Parquet file, save material in persistent store.

Methods inherited from class java.lang.Object

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

Field Detail

KEY_MATERIAL_FILE_PREFIX

public static final String KEY_MATERIAL_FILE_PREFIX

See Also:

Constant Field Values

TEMP_FILE_PREFIX

public static final String TEMP_FILE_PREFIX

See Also:

Constant Field Values

KEY_MATERIAL_FILE_SUFFFIX

public static final String KEY_MATERIAL_FILE_SUFFFIX

See Also:

Constant Field Values

Method Detail

initialize

public void initialize(org.apache.hadoop.fs.Path parquetFilePath,
                       org.apache.hadoop.conf.Configuration hadoopConfig,
                       boolean tempStore)

Description copied from interface: FileKeyMaterialStore

Initializes key material store for a parquet file.

Specified by:

initialize in interface FileKeyMaterialStore

Parameters:

parquetFilePath - Parquet file path

hadoopConfig - Hadoop configuration

tempStore - set true if this is a temporary store, used in key rotation

addKeyMaterial

public void addKeyMaterial(String keyIDInFile,
                           String keyMaterial)
                    throws ParquetCryptoRuntimeException

Description copied from interface: FileKeyMaterialStore

Add key material for one encryption key.

Specified by:

addKeyMaterial in interface FileKeyMaterialStore

Parameters:

keyIDInFile - ID of the key in Parquet file

keyMaterial - key material

Throws:

ParquetCryptoRuntimeException

getKeyMaterial

public String getKeyMaterial(String keyIDInFile)
                      throws ParquetCryptoRuntimeException

Description copied from interface: FileKeyMaterialStore

Get key material

Specified by:

getKeyMaterial in interface FileKeyMaterialStore

Parameters:

keyIDInFile - ID of a key in Parquet file

Returns:

key material

Throws:

ParquetCryptoRuntimeException

saveMaterial

public void saveMaterial()
                  throws ParquetCryptoRuntimeException

Description copied from interface: FileKeyMaterialStore

After key material was added for all keys in the given Parquet file, save material in persistent store.

Specified by:

saveMaterial in interface FileKeyMaterialStore

Throws:

ParquetCryptoRuntimeException

getKeyIDSet

public Set<String> getKeyIDSet()
                        throws ParquetCryptoRuntimeException

Specified by:

getKeyIDSet in interface FileKeyMaterialStore

Returns:

Set of all key IDs in this store (for the given Parquet file)

Throws:

ParquetCryptoRuntimeException

removeMaterial

public void removeMaterial()
                    throws ParquetCryptoRuntimeException

Description copied from interface: FileKeyMaterialStore

Remove key material from persistent store. Used in key rotation.

Specified by:

removeMaterial in interface FileKeyMaterialStore

Throws:

ParquetCryptoRuntimeException

moveMaterialTo

public void moveMaterialTo(FileKeyMaterialStore keyMaterialStore)
                    throws ParquetCryptoRuntimeException

Description copied from interface: FileKeyMaterialStore

Move key material to another store. Used in key rotation.

Specified by:

moveMaterialTo in interface FileKeyMaterialStore

Parameters:

keyMaterialStore - target store

Throws:

ParquetCryptoRuntimeException