1 /*
2  * Copyright (C) 2007 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 android.graphics;
18 
19 import android.compat.annotation.UnsupportedAppUsage;
20 
21 import com.android.internal.util.ArrayUtils;
22 
23 /**
24  * @hide
25  */
26 public class TemporaryBuffer {
27     @UnsupportedAppUsage
obtain(int len)28     public static char[] obtain(int len) {
29         char[] buf;
30 
31         synchronized (TemporaryBuffer.class) {
32             buf = sTemp;
33             sTemp = null;
34         }
35 
36         if (buf == null || buf.length < len) {
37             buf = ArrayUtils.newUnpaddedCharArray(len);
38         }
39 
40         return buf;
41     }
42 
43     @UnsupportedAppUsage
recycle(char[] temp)44     public static void recycle(char[] temp) {
45         if (temp.length > 1000) return;
46 
47         synchronized (TemporaryBuffer.class) {
48             sTemp = temp;
49         }
50     }
51 
52     private static char[] sTemp = null;
53 }
54