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.settings.biometrics2.factory; 18 19 import android.app.Application; 20 import android.hardware.fingerprint.FingerprintManager; 21 22 import androidx.annotation.NonNull; 23 import androidx.annotation.Nullable; 24 25 import com.android.settings.Utils; 26 import com.android.settings.biometrics2.data.repository.FingerprintRepository; 27 28 /** 29 * Implementation for BiometricsRepositoryProvider 30 */ 31 public class BiometricsRepositoryProviderImpl implements BiometricsRepositoryProvider { 32 33 private static volatile FingerprintRepository sFingerprintRepository; 34 35 /** 36 * Get FingerprintRepository 37 */ 38 @Nullable 39 @Override getFingerprintRepository(@onNull Application application)40 public FingerprintRepository getFingerprintRepository(@NonNull Application application) { 41 final FingerprintManager fingerprintManager = 42 Utils.getFingerprintManagerOrNull(application); 43 if (fingerprintManager == null) { 44 return null; 45 } 46 if (sFingerprintRepository == null) { 47 synchronized (FingerprintRepository.class) { 48 if (sFingerprintRepository == null) { 49 sFingerprintRepository = new FingerprintRepository(fingerprintManager); 50 } 51 } 52 } 53 return sFingerprintRepository; 54 } 55 } 56