spark GroupMappingServiceProvider 源码
spark GroupMappingServiceProvider 代码
文件路径：/core/src/main/scala/org/apache/spark/security/GroupMappingServiceProvider.scala
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.security
/**
* This Spark trait is used for mapping a given userName to a set of groups which it belongs to.
* This is useful for specifying a common group of admins/developers to provide them admin, modify
* and/or view access rights. Based on whether access control checks are enabled using
* spark.acls.enable, every time a user tries to access or modify the application, the
* SecurityManager gets the corresponding groups a user belongs to from the instance of the groups
* mapping provider specified by the entry spark.user.groups.mapping.
*/
trait GroupMappingServiceProvider {
/**
* Get the groups the user belongs to.
* @param userName User's Name
* @return set of groups that the user belongs to. Empty in case of an invalid user.
*/
def getGroups(userName : String) : Set[String]
}
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