| /** |
| * 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.sentry.provider.common; |
| |
| import com.google.common.collect.ImmutableSet; |
| import org.apache.sentry.core.common.ActiveRoleSet; |
| import org.apache.sentry.core.common.Authorizable; |
| |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.sentry.policy.common.CommonPrivilege; |
| import org.apache.sentry.policy.common.Privilege; |
| |
| public class CacheProvider { |
| private TableCache cache; |
| private volatile boolean initialized = false; |
| |
| public void initialize(TableCache cache) { |
| if (initialized) { |
| throw new IllegalStateException("CacheProvider has already been initialized, cannot be initialized twice."); |
| } |
| this.cache = cache; |
| this.initialized = true; |
| } |
| |
| public ImmutableSet<String> getPrivileges(Set<String> groups, ActiveRoleSet roleSet, |
| Authorizable... authorizableHierarchy) { |
| if (!initialized) { |
| throw new IllegalStateException("CacheProvider has not been properly initialized"); |
| } |
| ImmutableSet.Builder<String> resultBuilder = ImmutableSet.builder(); |
| for (String groupName : groups) { |
| for (Map.Entry<String, Set<String>> row : cache.getCache().row(groupName).entrySet()) { |
| if (roleSet.containsRole(row.getKey())) { |
| // TODO: SENTRY-1245: Filter by Authorizables, if provided |
| resultBuilder.addAll(row.getValue()); |
| } |
| } |
| } |
| return resultBuilder.build(); |
| } |
| |
| public ImmutableSet<Privilege> getPrivilegeObjects(Set<String> groups, Set<String> users, |
| ActiveRoleSet roleSet, Authorizable... authorizableHierarchy) { |
| |
| if (!initialized) { |
| throw new IllegalStateException("CacheProvider has not been properly initialized"); |
| } |
| ImmutableSet.Builder<Privilege> resultBuilder = ImmutableSet.builder(); |
| for (String groupName : groups) { |
| for (Map.Entry<String, Set<String>> row : cache.getCache().row(groupName).entrySet()) { |
| if (roleSet.containsRole(row.getKey())) { |
| // TODO: SENTRY-1245: Filter by Authorizables, if provided |
| Set<String> privilegeStrings = row.getValue(); |
| for (String privilegeString : privilegeStrings) { |
| resultBuilder.add(getPrivilegeObject(privilegeString)); |
| } |
| } |
| } |
| } |
| return resultBuilder.build(); |
| } |
| |
| public ImmutableSet<String> getRoles(Set<String> groups, ActiveRoleSet roleSet) { |
| if (!initialized) { |
| throw new IllegalStateException("CacheProvider has not been properly initialized"); |
| } |
| ImmutableSet.Builder<String> resultBuilder = ImmutableSet.builder(); |
| if (groups != null) { |
| for (String groupName : groups) { |
| for (Map.Entry<String, Set<String>> row : cache.getCache().row(groupName) |
| .entrySet()) { |
| if (roleSet.containsRole(row.getKey())) { |
| resultBuilder.add(row.getKey()); |
| } |
| } |
| } |
| } |
| return resultBuilder.build(); |
| } |
| |
| private Privilege getPrivilegeObject(String priString) { |
| return new CommonPrivilege(priString); |
| } |
| } |