package ca.uhn.fhir.test.utilities;

/*-
 * #%L
 * HAPI FHIR Test Utilities
 * %%
 * Copyright (C) 2014 - 2021 Smile CDR, Inc.
 * %%
 * 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.
 * #L%
 */

import org.apache.commons.lang3.Validate;
import org.springframework.aop.framework.AopProxyUtils;

public class ProxyUtil {

	@SuppressWarnings("unchecked")
	public static <T> T getSingletonTarget(Object theSource, Class<T> theSubscriptionTriggeringSvcClass) {
		Validate.notNull(theSource);
		if (theSubscriptionTriggeringSvcClass.isAssignableFrom(theSource.getClass())) {
			return (T) theSource;
		}
		return (T) AopProxyUtils.getSingletonTarget(theSource);
	}

}
