1 /* 2 * Copyright 2022 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.bluetooth.gatt; 18 19 import android.util.Log; 20 21 import com.android.bluetooth.Utils; 22 /** 23 * Factory class for object initialization to help with unit testing 24 */ 25 public class GattObjectsFactory { 26 private static final String TAG = GattObjectsFactory.class.getSimpleName(); 27 private static GattObjectsFactory sInstance; 28 private static final Object INSTANCE_LOCK = new Object(); 29 GattObjectsFactory()30 private GattObjectsFactory() { 31 } 32 33 /** 34 * Get the singleton instance of object factory 35 * 36 * @return the singleton instance, guaranteed not null 37 */ getInstance()38 public static GattObjectsFactory getInstance() { 39 synchronized (INSTANCE_LOCK) { 40 if (sInstance == null) { 41 sInstance = new GattObjectsFactory(); 42 } 43 } 44 return sInstance; 45 } 46 47 /** 48 * Allow unit tests to substitute GattObjectsFactory with a test instance 49 * 50 * @param objectsFactory a test instance of the GattObjectsFactory 51 */ setInstanceForTesting(GattObjectsFactory objectsFactory)52 static void setInstanceForTesting(GattObjectsFactory objectsFactory) { 53 Utils.enforceInstrumentationTestMode(); 54 synchronized (INSTANCE_LOCK) { 55 Log.d(TAG, "setInstanceForTesting(), set to " + objectsFactory); 56 sInstance = objectsFactory; 57 } 58 } 59 getNativeInterface()60 public GattNativeInterface getNativeInterface() { 61 return GattNativeInterface.getInstance(); 62 } 63 getScanNativeInterface()64 public ScanNativeInterface getScanNativeInterface() { 65 return ScanNativeInterface.getInstance(); 66 } 67 } 68