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 17package com.android.contacts.common; 18 19import android.content.Context; 20import com.android.contacts.common.bindings.ContactsCommonBindings; 21import com.android.contacts.common.bindings.ContactsCommonBindingsFactory; 22import com.android.contacts.common.bindings.ContactsCommonBindingsStub; 23import java.util.Objects; 24 25/** Accessor for the contacts common bindings. */ 26public class Bindings { 27 28 private static ContactsCommonBindings instance; 29 30 private Bindings() {} 31 32 public static ContactsCommonBindings get(Context context) { 33 Objects.requireNonNull(context); 34 if (instance != null) { 35 return instance; 36 } 37 38 Context application = context.getApplicationContext(); 39 if (application instanceof ContactsCommonBindingsFactory) { 40 instance = ((ContactsCommonBindingsFactory) application).newContactsCommonBindings(); 41 } 42 43 if (instance == null) { 44 instance = new ContactsCommonBindingsStub(); 45 } 46 return instance; 47 } 48 49 public static void setForTesting(ContactsCommonBindings testInstance) { 50 instance = testInstance; 51 } 52} 53