content: /*
   * Copyright (C) 2020 ActiveJ LLC.
   *
   * 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.activej.types;
  
  import org.jetbrains.annotations.Nullable;
  
  import java.lang.annotation.Annotation;
  
  /**
   * Various utility methods to operate on annotations
   */
  @SuppressWarnings({"unchecked", "ForLoopReplaceableByForEach"})
  public final class AnnotationUtils {
  
  	/**
  	 * Checks whether annotations contain an annotation of a given type
  	 */
  	public static boolean hasAnnotation(Class<? extends Annotation> type, Annotation[] annotations) {
  		return getAnnotation(type, annotations) != null;
  	}
  
  	/**
  	 * Returns the first annotation of a given annotation type, or {@code null} if none matches
  	 */
  	public static <A extends Annotation> @Nullable A getAnnotation(Class<A> type, Annotation[] annotations) {
  		for (int i = 0; i < annotations.length; i++) {
  			if (annotations[i].annotationType() == type) {
  				return (A) annotations[i];
  			}
  		}
  		return null;
  	}
  
  }
  