| // 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.sentry; |
| |
| import com.google.common.base.Preconditions; |
| import org.apache.impala.authorization.Authorizable; |
| import org.apache.sentry.core.model.db.DBModelAuthorizable; |
| |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| /** |
| * A base class for Authorizable with Sentry specific operations. |
| */ |
| public abstract class SentryAuthorizable extends Authorizable { |
| /* |
| * Returns the list of the Authorizable objects in their hierarchical order. |
| * For example: |
| * [Column] would return Db -> Table -> Column |
| * [Table] would return Db -> Table |
| * [Db] would return [Db] |
| * [URI] would return [URI] |
| */ |
| public abstract List<Authorizable> getAuthorizableHierarchy(); |
| |
| /** |
| * Returns the list of the Sentry DBModelAuthorizable objects in their hierarchical |
| * order. |
| */ |
| public List<DBModelAuthorizable> getDBModelAuthorizableHierarchy() { |
| return getAuthorizableHierarchy().stream() |
| .map(a -> { |
| Preconditions.checkState(a instanceof SentryAuthorizable); |
| return ((SentryAuthorizable) a).getDBModelAuthorizable(); |
| }) |
| .collect(Collectors.toList()); |
| } |
| |
| /** |
| * Returns the Sentry DBModelAuthorizable that represents the type |
| * of Authorizable. |
| */ |
| public abstract DBModelAuthorizable getDBModelAuthorizable(); |
| } |