org.apache.paimon.flink.procedure.privilege.RevokePrivilegeFromUserProcedure Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of paimon-flink-1.18 Show documentation
The newest version!
/*
 * 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.paimon.flink.procedure.privilege;

import org.apache.paimon.catalog.Identifier;
import org.apache.paimon.privilege.PrivilegeType;

import org.apache.flink.table.procedure.ProcedureContext;

/**
 * Procedure to revoke privilege from a user. Privilege can be revoked from the whole catalog, a
 * database or a table. Only users with {@link PrivilegeType#ADMIN} privilege can perform this
 * operation. Usage:
 *
 * 
 *  CALL sys.revoke_privilege_from_user('username', 'privilege')
 *  CALL sys.revoke_privilege_from_user('username', 'privilege', 'database')
 *  CALL sys.revoke_privilege_from_user('username', 'privilege', 'database', 'table')
 * 
 */
public class RevokePrivilegeFromUserProcedure extends PrivilegeProcedureBase {

    public static final String IDENTIFIER = "revoke_privilege_from_user";

    public String[] call(ProcedureContext procedureContext, String user, String privilege) {
        int count =
                getPrivilegedCatalog()
                        .revokePrivilegeOnCatalog(user, PrivilegeType.valueOf(privilege));
        return new String[] {
            String.format("User %s is revoked with privilege %s on the catalog.", user, privilege),
            "Number of privileges revoked: " + count
        };
    }

    public String[] call(
            ProcedureContext procedureContext, String user, String privilege, String database) {
        int count =
                getPrivilegedCatalog()
                        .revokePrivilegeOnDatabase(
                                user, database, PrivilegeType.valueOf(privilege));
        return new String[] {
            String.format(
                    "User %s is revoked with privilege %s on database %s.",
                    user, privilege, database),
            "Number of privileges revoked: " + count
        };
    }

    public String[] call(
            ProcedureContext procedureContext,
            String user,
            String privilege,
            String database,
            String table) {
        Identifier identifier = Identifier.create(database, table);
        int count =
                getPrivilegedCatalog()
                        .revokePrivilegeOnTable(user, identifier, PrivilegeType.valueOf(privilege));
        return new String[] {
            String.format(
                    "User %s is revoked with privilege %s on table %s.",
                    user, privilege, identifier),
            "Number of privileges revoked: " + count
        };
    }

    @Override
    public String identifier() {
        return IDENTIFIER;
    }
}