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java.lang.Object org.apache.hadoop.security.alias.CredentialProvider
@InterfaceAudience.Public @InterfaceStability.Unstable public abstract class CredentialProvider
A provider of credentials or password for Hadoop applications. Provides an abstraction to separate credential storage from users of them. It is intended to support getting or storing passwords in a variety of ways, including third party bindings.
Field Summary | |
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static String |
CLEAR_TEXT_FALLBACK
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Constructor Summary | |
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CredentialProvider()
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Method Summary | |
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abstract org.apache.hadoop.security.alias.CredentialProvider.CredentialEntry |
createCredentialEntry(String name,
char[] credential)
Create a new credential. |
abstract void |
deleteCredentialEntry(String name)
Delete the given credential. |
abstract void |
flush()
Ensures that any changes to the credentials are written to persistent store. |
abstract List<String> |
getAliases()
Get the aliases for all credentials. |
abstract org.apache.hadoop.security.alias.CredentialProvider.CredentialEntry |
getCredentialEntry(String alias)
Get the credential entry for a specific alias. |
boolean |
isTransient()
Indicates whether this provider represents a store that is intended for transient use - such as the UserProvider is. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final String CLEAR_TEXT_FALLBACK
Constructor Detail |
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public CredentialProvider()
Method Detail |
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public boolean isTransient()
public abstract void flush() throws IOException
IOException
public abstract org.apache.hadoop.security.alias.CredentialProvider.CredentialEntry getCredentialEntry(String alias) throws IOException
alias
- the name of a specific credential
IOException
public abstract List<String> getAliases() throws IOException
IOException
public abstract org.apache.hadoop.security.alias.CredentialProvider.CredentialEntry createCredentialEntry(String name, char[] credential) throws IOException
name
- the alias of the credentialcredential
- the credential value for the alias.
IOException
public abstract void deleteCredentialEntry(String name) throws IOException
name
- the alias of the credential to delete
IOException
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