1 /*
2  * Copyright 2022 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.security.identity;
18 
19 import android.annotation.IntRange;
20 import android.annotation.NonNull;
21 
22 import java.time.Instant;
23 
24 /**
25  * Data about authentication keys.
26  */
27 public final class AuthenticationKeyMetadata {
28     private int mUsageCount;
29     private Instant mExpirationDate;
30 
AuthenticationKeyMetadata(int usageCount, @NonNull Instant expirationDate)31     AuthenticationKeyMetadata(int usageCount, @NonNull Instant expirationDate) {
32         mUsageCount = usageCount;
33         mExpirationDate = expirationDate;
34     }
35 
36     /**
37      * Gets usage count for the authentication key.
38      *
39      * @return the usage count
40      */
getUsageCount()41     public @IntRange(from = 0) int getUsageCount() {
42         return mUsageCount;
43     }
44 
45     /**
46      * Gets expiration date for the authentication key.
47      *
48      * @return the expiration date of the authentication key.
49      */
getExpirationDate()50     public @NonNull Instant getExpirationDate() {
51         return mExpirationDate;
52     }
53 }
54