1 /* 2 * Copyright (C) 2021 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.car.builtin.os; 18 19 import android.annotation.NonNull; 20 import android.annotation.Nullable; 21 import android.annotation.SystemApi; 22 import android.os.SystemProperties; 23 24 /** 25 * Helper class for {@link SystemProperties} 26 * 27 * @hide 28 */ 29 @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES) 30 public final class SystemPropertiesHelper { SystemPropertiesHelper()31 private SystemPropertiesHelper() { 32 throw new UnsupportedOperationException(); 33 } 34 35 /** Check {@link SystemProperties#set(String, String)} */ set(@onNull String key, @Nullable String val)36 public static void set(@NonNull String key, @Nullable String val) { 37 SystemProperties.set(key, val); 38 } 39 40 /** Check {@link SystemProperties#getLong(String, long)} */ getLong(@onNull String key, long defaultVal)41 public static long getLong(@NonNull String key, long defaultVal) { 42 return SystemProperties.getLong(key, defaultVal); 43 } 44 } 45