RemoteInteractionRegistry.java
/*
* 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 androidx.test.espresso.remote;
import java.util.concurrent.atomic.AtomicReference;
/** An exposed registry instance to make it easy for callers to get a hold of Remote Interaction */
public class RemoteInteractionRegistry {
private static final AtomicReference<RemoteInteraction> sInstance =
new AtomicReference<RemoteInteraction>(new NoopRemoteInteraction());
private RemoteInteractionRegistry() {
// singleton - disallow creation
}
/**
* Returns the {@link RemoteInteraction}
*
* <p>This remote interaction is not guaranteed to be present under all instrumentations.
*
* @return RemoteInteraction the remote interaction for this application. If no remote interaction
* has been registered a {@link NoopRemoteInteraction} will be returned.
*/
public static RemoteInteraction getInstance() {
return sInstance.get();
}
/**
* Stores the remote interaction in the registry.
*
* <p>This is a global registry - so be aware of the impact of calling this method!
*
* @param remoteInteraction the remote interaction for this application. <@code>Null</@code>
* de-registers any existing monitor.
*/
public static void registerInstance(RemoteInteraction remoteInteraction) {
if (null == remoteInteraction) {
sInstance.set(new NoopRemoteInteraction());
} else {
sInstance.set(remoteInteraction);
}
}
}