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 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 */ 38 void set(String key, String val); 39 40 /** 41 * Get the current value of |key|. 42 * @return value of |key|, if key exists; |defaultValue| otherwise 43 */ 44 boolean getBoolean(String key, boolean defaultValue); 45 46 /** 47 * Get the current value of |key|. 48 * @return value of |key|, if key exists; |defaultValue| otherwise 49 */ 50 String getString(String key, String defaultValue); 51 } 52
