co.cask.cdap.common.kerberos

Class SecurityUtil

java.lang.Object

co.cask.cdap.common.kerberos.SecurityUtil

public final class SecurityUtil
extends Object

Utility functions for Kerberos.

Method Summary

Methods

Modifier and Type	Method and Description
static void	enableKerberosLogin(CConfiguration cConf) Enables Kerberos authentication based on configuration.
static String	expandPrincipal(String principal) Expands _HOST in principal name with local hostname.
static boolean	isKerberosEnabled(CConfiguration cConf)
static void	loginForMasterService(CConfiguration cConf)

Methods inherited from class java.lang.Object

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

Method Detail

enableKerberosLogin

public static void enableKerberosLogin(CConfiguration cConf)
                                throws IOException

Enables Kerberos authentication based on configuration.

Parameters:

cConf - configuration object.

Throws:

IOException

expandPrincipal

@Nullable
public static String expandPrincipal(@Nullable
                              String principal)
                              throws UnknownHostException

Expands _HOST in principal name with local hostname.

Parameters:

principal - Kerberos principal name

Returns:

expanded principal name

Throws:

UnknownHostException - if the local hostname could not be resolved into an address.

isKerberosEnabled

public static boolean isKerberosEnabled(CConfiguration cConf)

Parameters:

cConf - CConfiguration object.

Returns:

true, if Kerberos is enabled.

loginForMasterService

public static void loginForMasterService(CConfiguration cConf)
                                  throws IOException,
                                         LoginException

Throws:

IOException

LoginException