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/*
* 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;
}
}
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