Package org.apache.hadoop.crypto.key

Class KeyProviderFactory

java.lang.Object

org.apache.hadoop.crypto.key.KeyProviderFactory

Direct Known Subclasses:

JavaKeyStoreProvider.Factory, KMSClientProvider.Factory, UserProvider.Factory

@Public
@Unstable
public abstract class KeyProviderFactory
extends java.lang.Object

A factory to create a list of KeyProvider based on the path given in a Configuration. It uses a service loader interface to find the available KeyProviders and create them based on the list of URIs.

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	KEY_PROVIDER_PATH

Constructor Summary

Constructors

Constructor	Description
KeyProviderFactory()

Method Summary

Modifier and Type	Method	Description
abstract KeyProvider	createProvider(java.net.URI providerName, Configuration conf)
static KeyProvider	get(java.net.URI uri, Configuration conf)	Create a KeyProvider based on a provided URI.
static java.util.List<KeyProvider>	getProviders(Configuration conf)

Methods inherited from class java.lang.Object

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

Field Detail

KEY_PROVIDER_PATH

public static final java.lang.String KEY_PROVIDER_PATH

See Also:

Constant Field Values

Constructor Detail

KeyProviderFactory

public KeyProviderFactory()

Method Detail

createProvider

public abstract KeyProvider createProvider(java.net.URI providerName,
                                           Configuration conf)
                                    throws java.io.IOException

Throws:

java.io.IOException

getProviders

public static java.util.List<KeyProvider> getProviders(Configuration conf)
                                                throws java.io.IOException

Throws:

java.io.IOException

get

public static KeyProvider get(java.net.URI uri,
                              Configuration conf)
                       throws java.io.IOException

Create a KeyProvider based on a provided URI.

Parameters:

uri - key provider URI

conf - configuration to initialize the key provider

Returns:

the key provider for the specified URI, or NULL if a provider for the specified URI scheme could not be found.

Throws:

java.io.IOException - thrown if the provider failed to initialize.