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/*
* SonarQube, open source software quality management tool.
* Copyright (C) 2008-2014 SonarSource
* mailto:contact AT sonarsource DOT com
*
* SonarQube is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* SonarQube is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.api.utils;
import org.apache.commons.lang.ClassUtils;
import java.lang.annotation.Annotation;
import java.util.List;
/**
* A utility class for annotations
*
* @since 1.11
*/
public final class AnnotationUtils {
private AnnotationUtils() {
}
/**
* Searches for a class annotation. All inheritance tree is analysed.
*
* @since 3.1
*/
public static <A extends Annotation> A getAnnotation(Object objectOrClass, Class<A> annotationClass) {
Class<?> initialClass = objectOrClass instanceof Class<?> ? (Class<?>) objectOrClass : objectOrClass.getClass();
for (Class<?> aClass = initialClass; aClass != null; aClass = aClass.getSuperclass()) {
A result = aClass.getAnnotation(annotationClass);
if (result != null) {
return result;
}
}
for (Class<?> anInterface : (List<Class<?>>) ClassUtils.getAllInterfaces(initialClass)) {
A result = anInterface.getAnnotation(annotationClass);
if (result != null) {
return result;
}
}
return null;
}
/**
* Searches for a class annotation. All inheritance tree is analysed.
*
* @deprecated As of 3.1, replaced by {@link #getAnnotation(Object,Class)}
*/
@Deprecated
public static <A> A getClassAnnotation(Object object, Class<A> annotationClass) {
return (A) getAnnotation(object, (Class<? extends Annotation>) annotationClass);
}
}
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