org.apache.hadoop.crypto.key
Class KeyProviderFactory

java.lang.Object
  org.apache.hadoop.crypto.key.KeyProviderFactory

@InterfaceAudience.Public
@InterfaceStability.Unstable
public abstract class KeyProviderFactory
extends 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

static String

KEY_PROVIDER_PATH

Constructor Summary

KeyProviderFactory()

Method Summary

abstract KeyProvider	createProvider(URI providerName, Configuration conf)
static KeyProvider	get(URI uri, Configuration conf) Create a KeyProvider based on a provided URI.
static 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 String KEY_PROVIDER_PATH

See Also:

Constant Field Values

Constructor Detail

KeyProviderFactory

public KeyProviderFactory()

Method Detail

createProvider

public abstract KeyProvider createProvider(URI providerName,
                                           Configuration conf)
                                    throws IOException

Throws:

IOException

getProviders

public static List<KeyProvider> getProviders(Configuration conf)
                                      throws IOException

Throws:

IOException

get

public static KeyProvider get(URI uri,
                              Configuration conf)
                       throws 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:

IOException - thrown if the provider failed to initialize.