| /* |
| * 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.accumulo.core.security; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Accumulo namespace permissions. Each permission has an associated byte ID. |
| */ |
| public enum NamespacePermission { |
| // One may add new permissions, but new permissions must use new numbers. Current numbers in use |
| // must not be changed. |
| READ((byte) 0), |
| WRITE((byte) 1), |
| ALTER_NAMESPACE((byte) 2), |
| GRANT((byte) 3), |
| ALTER_TABLE((byte) 4), |
| CREATE_TABLE((byte) 5), |
| DROP_TABLE((byte) 6), |
| BULK_IMPORT((byte) 7), |
| DROP_NAMESPACE((byte) 8); |
| |
| private final byte permID; |
| |
| private static final NamespacePermission mapping[] = new NamespacePermission[9]; |
| static { |
| for (NamespacePermission perm : NamespacePermission.values()) |
| mapping[perm.permID] = perm; |
| } |
| |
| private NamespacePermission(byte id) { |
| this.permID = id; |
| } |
| |
| /** |
| * Gets the byte ID of this permission. |
| * |
| * @return byte ID |
| */ |
| public byte getId() { |
| return this.permID; |
| } |
| |
| /** |
| * Returns a list of printable permission values. |
| * |
| * @return list of namespace permission values, as "Namespace." + permission name |
| */ |
| public static List<String> printableValues() { |
| NamespacePermission[] a = NamespacePermission.values(); |
| |
| List<String> list = new ArrayList<>(a.length); |
| |
| for (NamespacePermission p : a) |
| list.add("Namespace." + p); |
| |
| return list; |
| } |
| |
| /** |
| * Gets the permission matching the given byte ID. |
| * |
| * @param id |
| * byte ID |
| * @return system permission |
| * @throws IndexOutOfBoundsException |
| * if the byte ID is invalid |
| */ |
| // This method isn't used anywhere, why is it public API? |
| public static NamespacePermission getPermissionById(byte id) { |
| NamespacePermission result = mapping[id]; |
| if (result != null) |
| return result; |
| throw new IndexOutOfBoundsException("No such permission"); |
| } |
| |
| public static NamespacePermission getEquivalent(TablePermission permission) { |
| switch (permission) { |
| case READ: |
| return NamespacePermission.READ; |
| case WRITE: |
| return NamespacePermission.WRITE; |
| case ALTER_TABLE: |
| return NamespacePermission.ALTER_TABLE; |
| case GRANT: |
| return NamespacePermission.GRANT; |
| case DROP_TABLE: |
| return NamespacePermission.DROP_TABLE; |
| case BULK_IMPORT: |
| return NamespacePermission.BULK_IMPORT; |
| default: |
| return null; |
| } |
| |
| } |
| |
| public static NamespacePermission getEquivalent(SystemPermission permission) { |
| switch (permission) { |
| case CREATE_TABLE: |
| return NamespacePermission.CREATE_TABLE; |
| case DROP_TABLE: |
| return NamespacePermission.DROP_TABLE; |
| case ALTER_TABLE: |
| return NamespacePermission.ALTER_TABLE; |
| case ALTER_NAMESPACE: |
| return NamespacePermission.ALTER_NAMESPACE; |
| case DROP_NAMESPACE: |
| return NamespacePermission.DROP_NAMESPACE; |
| case GRANT: |
| return NamespacePermission.ALTER_NAMESPACE; |
| case CREATE_NAMESPACE: |
| case CREATE_USER: |
| case DROP_USER: |
| case ALTER_USER: |
| case SYSTEM: |
| default: |
| return null; |
| } |
| } |
| |
| } |