/*
* Copyright 2002-2009 the original author or 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 org.springframework.core.type;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import org.springframework.core.annotation.AnnotationUtils;
/**
* {@link AnnotationMetadata} implementation that uses standard reflection
* to introspect a given <code>Class</code>.
*
* @author Juergen Hoeller
* @author Mark Fisher
* @since 2.5
*/
public class StandardAnnotationMetadata extends StandardClassMetadata implements AnnotationMetadata {
/**
* Create a new StandardAnnotationMetadata wrapper for the given Class.
* @param introspectedClass the Class to introspect
*/
public StandardAnnotationMetadata(Class introspectedClass) {
super(introspectedClass);
}
public Set<String> getAnnotationTypes() {
Set<String> types = new LinkedHashSet<String>();
Annotation[] anns = getIntrospectedClass().getAnnotations();
for (Annotation ann : anns) {
types.add(ann.annotationType().getName());
}
return types;
}
public Set<String> getMetaAnnotationTypes(String annotationType) {
Annotation[] anns = getIntrospectedClass().getAnnotations();
for (Annotation ann : anns) {
if (ann.annotationType().getName().equals(annotationType)) {
Set<String> types = new LinkedHashSet<String>();
Annotation[] metaAnns = ann.annotationType().getAnnotations();
for (Annotation metaAnn : metaAnns) {
types.add(metaAnn.annotationType().getName());
for (Annotation metaMetaAnn : metaAnn.annotationType().getAnnotations()) {
types.add(metaMetaAnn.annotationType().getName());
}
}
return types;
}
}
return null;
}
public boolean hasAnnotation(String annotationType) {
Annotation[] anns = getIntrospectedClass().getAnnotations();
for (Annotation ann : anns) {
if (ann.annotationType().getName().equals(annotationType)) {
return true;
}
}
return false;
}
public boolean hasMetaAnnotation(String annotationType) {
Annotation[] anns = getIntrospectedClass().getAnnotations();
for (Annotation ann : anns) {
Annotation[] metaAnns = ann.annotationType().getAnnotations();
for (Annotation metaAnn : metaAnns) {
if (metaAnn.annotationType().getName().equals(annotationType)) {
return true;
}
for (Annotation metaMetaAnn : metaAnn.annotationType().getAnnotations()) {
if (metaMetaAnn.annotationType().getName().equals(annotationType)) {
return true;
}
}
}
}
return false;
}
public boolean isAnnotated(String annotationType) {
Annotation[] anns = getIntrospectedClass().getAnnotations();
for (Annotation ann : anns) {
if (ann.annotationType().getName().equals(annotationType)) {
return true;
}
for (Annotation metaAnn : ann.annotationType().getAnnotations()) {
if (metaAnn.annotationType().getName().equals(annotationType)) {
return true;
}
}
}
return false;
}
public Map<String, Object> getAnnotationAttributes(String annotationType) {
return getAnnotationAttributes(annotationType, false);
}
public Map<String, Object> getAnnotationAttributes(String annotationType, boolean classValuesAsString) {
Annotation[] anns = getIntrospectedClass().getAnnotations();
for (Annotation ann : anns) {
if (ann.annotationType().getName().equals(annotationType)) {
return AnnotationUtils.getAnnotationAttributes(ann, classValuesAsString);
}
for (Annotation metaAnn : ann.annotationType().getAnnotations()) {
if (metaAnn.annotationType().getName().equals(annotationType)) {
return AnnotationUtils.getAnnotationAttributes(metaAnn, classValuesAsString);
}
}
}
return null;
}
public boolean hasAnnotatedMethods(String annotationType) {
Method[] methods = getIntrospectedClass().getDeclaredMethods();
for (Method method : methods) {
for (Annotation ann : method.getAnnotations()) {
if (ann.annotationType().getName().equals(annotationType)) {
return true;
}
else {
for (Annotation metaAnn : ann.annotationType().getAnnotations()) {
if (metaAnn.annotationType().getName().equals(annotationType)) {
return true;
}
}
}
}
}
return false;
}
public Set<MethodMetadata> getAnnotatedMethods(String annotationType) {
Method[] methods = getIntrospectedClass().getDeclaredMethods();
Set<MethodMetadata> annotatedMethods = new LinkedHashSet<MethodMetadata>();
for (Method method : methods) {
for (Annotation ann : method.getAnnotations()) {
if (ann.annotationType().getName().equals(annotationType)) {
annotatedMethods.add(new StandardMethodMetadata(method));
break;
}
else {
for (Annotation metaAnn : ann.annotationType().getAnnotations()) {
if (metaAnn.annotationType().getName().equals(annotationType)) {
annotatedMethods.add(new StandardMethodMetadata(method));
break;
}
}
}
}
}
return annotatedMethods;
}
}
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