/* * Copyright (C) 2023 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.settings.development.graphicsdriver; import android.os.SystemProperties; import androidx.annotation.NonNull; import androidx.annotation.Nullable; /** * Wrapper interface to access {@link SystemProperties}. * * @hide */ interface GraphicsDriverSystemPropertiesWrapper { /** * Get the String value for the given {@code key}. * * @param key the key to lookup * @param def the default value in case the property is not set or empty * @return if the {@code key} isn't found, return {@code def} if it isn't null, or an empty * string otherwise */ @NonNull String get(@NonNull String key, @Nullable String def); /** * Set the value for the given {@code key} to {@code val}. * * @throws IllegalArgumentException if the {@code val} exceeds 91 characters * @throws RuntimeException if the property cannot be set, for example, if it was blocked by * SELinux. libc will log the underlying reason. */ void set(@NonNull String key, @Nullable String val); /** * Get the boolean value for the given {@code key}. * * @param key the key to lookup * @param def the default value in case the property is not set or empty * @return if the {@code key} isn't found, return {@code def}. */ boolean getBoolean(@NonNull String key, @NonNull boolean def); }