1 /*
2  * Copyright (C) 2011 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package androidx.core.util;
18 
19 import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP_PREFIX;
20 
21 import androidx.annotation.RestrictTo;
22 
23 /**
24  * Helper for accessing features in {@link android.util.DebugUtils}.
25  *
26  */
27 @RestrictTo(LIBRARY_GROUP_PREFIX)
28 public class DebugUtils {
29 
buildShortClassTag(Object cls, StringBuilder out)30     public static void buildShortClassTag(Object cls, StringBuilder out) {
31         if (cls == null) {
32             out.append("null");
33         } else {
34             String simpleName = cls.getClass().getSimpleName();
35             if (simpleName == null || simpleName.length() <= 0) {
36                 simpleName = cls.getClass().getName();
37                 int end = simpleName.lastIndexOf('.');
38                 if (end > 0) {
39                     simpleName = simpleName.substring(end+1);
40                 }
41             }
42             out.append(simpleName);
43             out.append('{');
44             out.append(Integer.toHexString(System.identityHashCode(cls)));
45         }
46     }
47 
DebugUtils()48     private DebugUtils() {
49     }
50 }
51