1 /*
2  * Copyright (C) 2016 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 com.android.server.wifi;
18 
19 import android.annotation.NonNull;
20 
21 import com.android.internal.annotations.VisibleForTesting;
22 
23 /** Abstraction of android.os.SystemProperties, to enable mocking out its static methods. */
24 @VisibleForTesting
25 public interface PropertyService {
26     /**
27      * Get the current value of |key|.
28      * @return value of |key|, if key exists; |defaultValue| or empty string otherwise
29      */
30     @NonNull
get(String key, String defaultValue)31     String get(String key, String defaultValue);
32 
33     /**
34      * Set the value for |key|.
35      * @throws IllegalArgumentException if the key exceeds 32 characters
36      * @throws IllegalArgumentException if the value exceeds 92 characters
37      */
set(String key, String val)38     void set(String key, String val);
39 }
40