io.dapr.actors.ActorUtils Maven / Gradle / Ivy
/*
* Copyright 2021 The Dapr Authors
* 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 io.dapr.actors;
public final class ActorUtils {
/**
* Finds the actor type name for the given class or interface.
*
* @param actorClass Class or interface for Actor Type.
* @return Name for Actor Type.
*/
public static String findActorTypeName(Class actorClass) {
if (actorClass == null) {
throw new IllegalArgumentException("ActorClass is required.");
}
Class node = actorClass;
while ((node != null) && (node.getAnnotation(ActorType.class) == null)) {
node = node.getSuperclass();
}
if (node == null) {
// No annotation found in parent classes, so we scan interfaces.
for (Class interfaze : actorClass.getInterfaces()) {
if (interfaze.getAnnotation(ActorType.class) != null) {
node = interfaze;
break;
}
}
}
if (node == null) {
// No ActorType annotation found, so we use the class name.
return actorClass.getSimpleName();
}
ActorType actorTypeAnnotation = node.getAnnotation(ActorType.class);
return actorTypeAnnotation != null ? actorTypeAnnotation.name() : actorClass.getSimpleName();
}
}