Package org.apache.accumulo.core.conf

Class HadoopCredentialProvider

java.lang.Object

org.apache.accumulo.core.conf.HadoopCredentialProvider

public class HadoopCredentialProvider
extends Object

Shim around Hadoop's CredentialProviderFactory provided by hadoop-common.

Constructor Summary

Constructors

Constructor	Description
HadoopCredentialProvider()

Method Summary

Modifier and Type	Method	Description
static void	createEntry(org.apache.hadoop.conf.Configuration conf, String name, char[] credential)	Create a CredentialEntry using the configured Providers.
static List<String>	getKeys(org.apache.hadoop.conf.Configuration conf)	Attempt to extract all aliases from any configured CredentialProviders.
static char[]	getValue(org.apache.hadoop.conf.Configuration conf, String alias)	Attempt to extract the password from any configured CredentialProviders for the given alias.
static void	setPath(org.apache.hadoop.conf.Configuration conf, String path)	Set the Hadoop Credential Provider path in the provided Hadoop Configuration.

Methods inherited from class java.lang.Object

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

Constructor Detail

HadoopCredentialProvider

public HadoopCredentialProvider()

Method Detail

setPath

public static void setPath(org.apache.hadoop.conf.Configuration conf,
                           String path)

Set the Hadoop Credential Provider path in the provided Hadoop Configuration.

Parameters:

conf - the Hadoop Configuration object

path - the credential provider paths to set

getValue

public static char[] getValue(org.apache.hadoop.conf.Configuration conf,
                              String alias)

Attempt to extract the password from any configured CredentialProviders for the given alias. If no providers or credential is found, null is returned.

Parameters:

conf - Configuration for CredentialProvider

alias - Name of CredentialEntry key

Returns:

The credential if found, null otherwise

getKeys

public static List<String> getKeys(org.apache.hadoop.conf.Configuration conf)

Attempt to extract all aliases from any configured CredentialProviders.

Parameters:

conf - Configuration for the CredentialProvider

Returns:

A list of aliases. An empty list if no CredentialProviders are configured, or the providers are empty.

createEntry

public static void createEntry(org.apache.hadoop.conf.Configuration conf,
                               String name,
                               char[] credential)
                        throws IOException

Create a CredentialEntry using the configured Providers. If multiple CredentialProviders are configured, the first will be used.

Parameters:

conf - Configuration for the CredentialProvider

name - CredentialEntry name (alias)

credential - The credential

Throws:

IOException