DebugUtils.java revision cba2e2c881e8e16ea5025b564c94320174d65f01 
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
17package android.support.v4.util;
18
19/**
20 * Useful debugging utilities that are not available on all versions of Android.
21 */
22public class DebugUtils {
23    public static void buildShortClassTag(Object cls, StringBuilder out) {
24        if (cls == null) {
25            out.append("null");
26        } else {
27            String simpleName = cls.getClass().getSimpleName();
28            if (simpleName == null || simpleName.length() <= 0) {
29                simpleName = cls.getClass().getName();
30                int end = simpleName.lastIndexOf('.');
31                if (end > 0) {
32                    simpleName = simpleName.substring(end+1);
33                }
34            }
35            out.append(simpleName);
36            out.append('{');
37            out.append(Integer.toHexString(System.identityHashCode(cls)));
38        }
39    }
40}
41