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.security.KeyStore; 20 21 /** 22 * WiFi dependency injector using thread-safe lazy singleton pattern. To be used for accessing 23 * various wifi class instances and as a handle for mock injection. 24 */ 25 public class WifiInjector { 26 // see: https://en.wikipedia.org/wiki/Initialization-on-demand_holder_idiom 27 private static class LazyHolder { 28 public static final WifiInjector sInstance = new WifiInjector(); 29 } 30 31 public static WifiInjector getInstance() { 32 return LazyHolder.sInstance; 33 } 34 35 private final Clock mClock = new Clock(); 36 private final WifiMetrics mWifiMetrics = new WifiMetrics(mClock); 37 private final WifiLastResortWatchdog mWifiLastResortWatchdog = 38 new WifiLastResortWatchdog(mWifiMetrics); 39 private final PropertyService mPropertyService = new SystemPropertyService(); 40 private final BuildProperties mBuildProperties = new SystemBuildProperties(); 41 private final KeyStore mKeyStore = KeyStore.getInstance(); 42 43 public WifiMetrics getWifiMetrics() { 44 return mWifiMetrics; 45 } 46 47 public WifiLastResortWatchdog getWifiLastResortWatchdog() { 48 return mWifiLastResortWatchdog; 49 } 50 51 public Clock getClock() { 52 return mClock; 53 } 54 55 public PropertyService getPropertyService() { 56 return mPropertyService; 57 } 58 59 public BuildProperties getBuildProperties() { return mBuildProperties; } 60 61 public KeyStore getKeyStore() { 62 return mKeyStore; 63 } 64 } 65
