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• I have searched in the issues and found no similar issues.

Describe the feature

Constantize some properties to reduce object creation:

• AccessRequest initialization requires reflection methods:

  kyuubi/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/ranger/AccessRequest.scala

  Lines 48 to 52 in cad5a39

  	val roles = invokeAs[JSet[String]](
  	SparkRangerAdminPlugin,
  	"getRolesFromUserAndGroups",
  	(classOf[String], userName),
  	(classOf[JSet[String]], userGroups))

• RuleHelper.ugi (different sparkSession may have different authz ugi):

  kyuubi/extensions/spark/kyuubi-spark-authz/src/main/scala/org/apache/kyuubi/plugin/spark/authz/rule/RuleHelper.scala

  Line 50 in cad5a39

  def ugi: UserGroupInformation = AuthZUtils.getAuthzUgi(spark.sparkContext)

Motivation

No response

Describe the solution

No response

Additional context

No response

Are you willing to submit PR?

• Yes. I would be willing to submit a PR with guidance from the Kyuubi community to improve.
• No. I cannot submit a PR at this time.