1 /*
2  * Copyright 2024 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.appsearch.localstorage.util;
18 
19 import androidx.annotation.RestrictTo;
20 
21 import org.jspecify.annotations.NonNull;
22 
23 import java.util.Map;
24 
25 /**
26  * A utility class to avoid the clutter of checking whether or not {@link Map#getOrDefault} is
27  * available.
28  *
29  * @exportToFramework:hide
30  */
31 @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
32 public final class MapUtil {
MapUtil()33     private MapUtil() {}
34 
35     /**
36      * @return the value in map for key, or defaultValue if key is not present in map.
37      */
getOrDefault(@onNull Map<K, V> map, K key, V defaultValue)38     public static <K, V> V getOrDefault(@NonNull Map<K, V> map, K key, V defaultValue) {
39         V value = map.get(key);
40         return (value != null) ? value : defaultValue;
41     }
42 }
43