| /* |
| * 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 java.util.EnumSet; |
| import java.util.Set; |
| |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Sets; |
| |
| /** |
| * An enum encapsulating the set of possible permissions that an authenticated user can have on a resource. |
| * |
| * IAuthorizer implementations may encode permissions using ordinals, so the Enum order must never change order. |
| * Adding new values is ok. |
| */ |
| public enum Permission |
| { |
| @Deprecated |
| READ, |
| @Deprecated |
| WRITE, |
| |
| // schema and role management |
| // CREATE, ALTER and DROP permissions granted on an appropriate DataResource are required for |
| // CREATE KEYSPACE and CREATE TABLE. |
| // ALTER KEYSPACE, ALTER TABLE, CREATE INDEX and DROP INDEX require ALTER permission on the |
| // relevant DataResource. |
| // DROP KEYSPACE and DROP TABLE require DROP permission. |
| // |
| // In the context of Role management, these permissions may also be granted on a RoleResource. |
| // CREATE is only granted on the root-level role resource, and is required to create new roles. |
| // ALTER & DROP may be granted on either the root-level role resource, giving permissions on |
| // all roles, or on specific role-level resources. |
| CREATE, |
| ALTER, |
| DROP, |
| |
| // data access |
| SELECT, // required for SELECT on a table |
| MODIFY, // required for INSERT, UPDATE, DELETE, TRUNCATE on a DataResource. |
| |
| // permission management |
| AUTHORIZE, // required for GRANT and REVOKE of permissions or roles. |
| |
| DESCRIBE, // required on the root-level RoleResource to list all Roles |
| |
| // UDF permissions |
| EXECUTE; // required to invoke any user defined function or aggregate |
| |
| public static final Set<Permission> ALL = |
| Sets.immutableEnumSet(EnumSet.range(Permission.CREATE, Permission.EXECUTE)); |
| public static final Set<Permission> NONE = ImmutableSet.of(); |
| } |