org.apache.ambari.server.state.kerberos

Class KerberosDescriptorUpdateHelper

java.lang.Object

org.apache.ambari.server.state.kerberos.KerberosDescriptorUpdateHelper

public class KerberosDescriptorUpdateHelper
extends Object

KerberosDescriptorUpdateHelper provides routines for upgrading the user-specified Kerberos descriptor when changing stacks.

This implementation should work for stack upgrades and downgrades.

Constructor Summary

Constructors

Constructor and Description
KerberosDescriptorUpdateHelper()

Method Summary

Modifier and Type	Method and Description
static KerberosDescriptor	updateUserKerberosDescriptor(KerberosDescriptor beginningStackKerberosDescriptor, KerberosDescriptor endingStackKerberosDescriptor, KerberosDescriptor userKerberosDescriptor) The entry point into upgrading a user-specified Kerberos descriptor.

Methods inherited from class java.lang.Object

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

Constructor Detail

KerberosDescriptorUpdateHelper

public KerberosDescriptorUpdateHelper()

Method Detail

updateUserKerberosDescriptor

public static KerberosDescriptor updateUserKerberosDescriptor(KerberosDescriptor beginningStackKerberosDescriptor,
                                                              KerberosDescriptor endingStackKerberosDescriptor,
                                                              KerberosDescriptor userKerberosDescriptor)

The entry point into upgrading a user-specified Kerberos descriptor.

The supplied Kerberos descriptors will remain untouched and new Kerberos descriptor instance will created and returned with the update data.

Parameters:

beginningStackKerberosDescriptor - the Kerberos descriptor for the previous stack version

endingStackKerberosDescriptor - the Kerberos descriptor for the new stack version

userKerberosDescriptor - the user-specified Kerberos descriptor

Returns:

a new Kerberos descriptor containing the updated user-specified data