content: /*
   * 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.cassandra.auth;
  
  import org.apache.cassandra.exceptions.ConfigurationException;
  
  public interface INetworkAuthorizer extends AuthCache.BulkLoader<RoleResource, DCPermissions>
  {
      /**
       * Whether or not the authorizer will attempt authorization.
       * If false the authorizer will not be called for authorization of resources.
       */
      default boolean requireAuthorization()
      {
          return true;
      }
  
      /**
       * Setup is called once upon system startup to initialize the INetworkAuthorizer.
       *
       * For example, use this method to create any required keyspaces/column families.
       */
      void setup();
  
      /**
       * Returns the dc permissions associated with the given role
       */
      DCPermissions authorize(RoleResource role);
  
      void setRoleDatacenters(RoleResource role, DCPermissions permissions);
  
      /**
       * Called when a role is deleted, so any corresponding network permissions
       * data can also be cleaned up
       */
      void drop(RoleResource role);
  
      /**
       * Validates configuration of IAuthorizer implementation (if configurable).
       *
       * @throws ConfigurationException when there is a configuration error.
       */
      void validateConfiguration() throws ConfigurationException;
  }
  