| // 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.impala.authorization; |
| |
| import com.google.common.base.Preconditions; |
| import org.apache.impala.thrift.TCatalogObject; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * This class keeps track of authorization catalog objects added/removed, such as: |
| * - {@link org.apache.impala.catalog.Role} |
| * - {@link org.apache.impala.catalog.User} |
| * - {@link org.apache.impala.catalog.PrincipalPrivilege} |
| */ |
| public class AuthorizationDelta { |
| private final List<TCatalogObject> added_; |
| private final List<TCatalogObject> removed_; |
| |
| public AuthorizationDelta() { |
| this(new ArrayList<>(), new ArrayList<>()); |
| } |
| |
| public AuthorizationDelta(List<TCatalogObject> added, List<TCatalogObject> removed) { |
| added_ = Preconditions.checkNotNull(added); |
| removed_ = Preconditions.checkNotNull(removed); |
| } |
| |
| public AuthorizationDelta addCatalogObjectAdded(TCatalogObject catalogObject) { |
| added_.add(catalogObject); |
| return this; |
| } |
| |
| public AuthorizationDelta addCatalogObjectRemoved(TCatalogObject catalogObject) { |
| removed_.add(catalogObject); |
| return this; |
| } |
| |
| public List<TCatalogObject> getCatalogObjectsAdded() { |
| return Collections.unmodifiableList(added_); |
| } |
| |
| public List<TCatalogObject> getCatalogObjectsRemoved() { |
| return Collections.unmodifiableList(removed_); |
| } |
| } |