1 /* 2 * Copyright (C) 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.os.Looper; 20 import android.util.Log; 21 22 import com.android.bluetooth.Utils; 23 import com.android.bluetooth.btservice.AdapterService; 24 25 /** Factory class for object initialization to help with unit testing */ 26 public class GattObjectsFactory { 27 private static final String TAG = GattObjectsFactory.class.getSimpleName(); 28 29 private static GattObjectsFactory sInstance; 30 private static final Object INSTANCE_LOCK = new Object(); 31 GattObjectsFactory()32 private GattObjectsFactory() {} 33 34 /** 35 * Get the singleton instance of object factory 36 * 37 * @return the singleton instance, guaranteed not null 38 */ getInstance()39 public static GattObjectsFactory getInstance() { 40 synchronized (INSTANCE_LOCK) { 41 if (sInstance == null) { 42 sInstance = new GattObjectsFactory(); 43 } 44 } 45 return sInstance; 46 } 47 48 /** 49 * Allow unit tests to substitute GattObjectsFactory with a test instance 50 * 51 * @param objectsFactory a test instance of the GattObjectsFactory 52 */ setInstanceForTesting(GattObjectsFactory objectsFactory)53 public static void setInstanceForTesting(GattObjectsFactory objectsFactory) { 54 Utils.enforceInstrumentationTestMode(); 55 synchronized (INSTANCE_LOCK) { 56 Log.d(TAG, "setInstanceForTesting(), set to " + objectsFactory); 57 sInstance = objectsFactory; 58 } 59 } 60 getNativeInterface()61 public GattNativeInterface getNativeInterface() { 62 return GattNativeInterface.getInstance(); 63 } 64 createDistanceMeasurementManager( AdapterService adapterService, Looper looper)65 public DistanceMeasurementManager createDistanceMeasurementManager( 66 AdapterService adapterService, Looper looper) { 67 return new DistanceMeasurementManager(adapterService, looper); 68 } 69 } 70