org.apache.flume.auth
Class FlumeAuthenticationUtil

java.lang.Object
  org.apache.flume.auth.FlumeAuthenticationUtil

public class FlumeAuthenticationUtil
extends Object

FlumeAuthentication utility class that provides methods to get an Authenticator. If proper credentials are provided KerberosAuthenticator is returned which can be used to execute as the authenticated principal , or else a SimpleAuthenticator which executes without any authentication

Method Summary

static FlumeAuthenticator	getAuthenticator(String principal, String keytab) If principal and keytab are null, this method returns a SimpleAuthenticator which executes without authentication.
static CallbackHandler	getSaslGssCallbackHandler() Returns the standard SaslGssCallbackHandler from the hadoop common module
static String[]	splitKerberosName(String principal) Resolves the principal using Hadoop common's SecurityUtil and splits the kerberos principal into three parts user name, host and kerberos realm

Methods inherited from class java.lang.Object

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

Method Detail

getAuthenticator

public static FlumeAuthenticator getAuthenticator(String principal,
                                                  String keytab)
                                           throws SecurityException

If principal and keytab are null, this method returns a SimpleAuthenticator which executes without authentication. If valid credentials are provided KerberosAuthenitcator is returned which can be used to execute as the authenticated principal. Invalid credentials result in IllegalArgumentException and Failure to authenticate results in SecurityException

Parameters:

principal -

keytab -

Returns:

FlumeAuthenticator

Throws:

SecurityException

getSaslGssCallbackHandler

public static CallbackHandler getSaslGssCallbackHandler()

Returns the standard SaslGssCallbackHandler from the hadoop common module

Returns:

CallbackHandler

splitKerberosName

public static String[] splitKerberosName(String principal)
                                  throws IOException

Resolves the principal using Hadoop common's SecurityUtil and splits the kerberos principal into three parts user name, host and kerberos realm

Parameters:

principal -

Returns:

String[] of username, hostname and kerberos realm

Throws:

IOException