1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.lang3.reflect;
19
20 import java.lang.reflect.AccessibleObject;
21
22 /**
23 * Null-safe operations on {@link AccessibleObject}.
24 */
25 class AccessibleObjects {
26
27 /**
28 * Delegates to {@link AccessibleObject#isAccessible()} if {@code accessibleObject} isn't null.
29 *
30 * @param accessibleObject The accessible object.
31 * @return The value of the object's {@code accessible} flag
32 */
33 static boolean isAccessible(final AccessibleObject accessibleObject) {
34 return accessibleObject == null || accessibleObject.isAccessible();
35 }
36
37 /**
38 * Delegates to {@link AccessibleObject#setAccessible(boolean)} only if {@link AccessibleObject#isAccessible()} returns false. This avoid a
39 * permission check if there is a security manager.
40 *
41 * @param accessibleObject The accessible object.
42 * @return Whether {@link AccessibleObject#setAccessible(boolean)} was called.
43 */
44 static boolean setAccessible(final AccessibleObject accessibleObject) {
45 if (!isAccessible(accessibleObject)) {
46 accessibleObject.setAccessible(true);
47 return true;
48 }
49 return false;
50 }
51 }