| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| |
| package com.android.contacts.common.extensions; |
| |
| import android.content.Context; |
| import android.support.annotation.NonNull; |
| import android.support.annotation.VisibleForTesting; |
| import com.android.dialer.common.Assert; |
| |
| /** Accessor for the phone directory extender singleton. */ |
| public final class PhoneDirectoryExtenderAccessor { |
| |
| private static PhoneDirectoryExtender instance; |
| |
| private PhoneDirectoryExtenderAccessor() {} |
| |
| @VisibleForTesting |
| public static void setForTesting(PhoneDirectoryExtender extender) { |
| instance = extender; |
| } |
| |
| @NonNull |
| public static PhoneDirectoryExtender get(@NonNull Context context) { |
| Assert.isNotNull(context); |
| if (instance != null) { |
| return instance; |
| } |
| |
| Context application = context.getApplicationContext(); |
| if (application instanceof PhoneDirectoryExtenderFactory) { |
| instance = ((PhoneDirectoryExtenderFactory) application).newPhoneDirectoryExtender(); |
| } |
| |
| if (instance == null) { |
| instance = new PhoneDirectoryExtenderStub(); |
| } |
| return instance; |
| } |
| } |