1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 * in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the License 10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 11 * or implied. See the License for the specific language governing permissions and limitations under 12 * the License. 13 */ 14 15 package com.android.contacts.common.extensions; 16 17 import android.content.Context; 18 import android.support.annotation.NonNull; 19 import android.support.annotation.VisibleForTesting; 20 import com.android.dialer.common.Assert; 21 22 /** Accessor for the phone directory extender singleton. */ 23 public final class PhoneDirectoryExtenderAccessor { 24 25 private static PhoneDirectoryExtender instance; 26 27 private PhoneDirectoryExtenderAccessor() {} 28 29 @VisibleForTesting 30 public static void setForTesting(PhoneDirectoryExtender extender) { 31 instance = extender; 32 } 33 34 @NonNull 35 public static PhoneDirectoryExtender get(@NonNull Context context) { 36 Assert.isNotNull(context); 37 if (instance != null) { 38 return instance; 39 } 40 41 Context application = context.getApplicationContext(); 42 if (application instanceof PhoneDirectoryExtenderFactory) { 43 instance = ((PhoneDirectoryExtenderFactory) application).newPhoneDirectoryExtender(); 44 } 45 46 if (instance == null) { 47 instance = new PhoneDirectoryExtenderStub(); 48 } 49 return instance; 50 } 51 } 52
