/**************************************************************************************
* Copyright (c) Jonas Bon?r, Alexandre Vasseur. All rights reserved. *
* http://aspectwerkz.codehaus.org *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the LGPL license *
* a copy of which has been included with this distribution in the license.txt file. *
**************************************************************************************/
package org.codehaus.aspectwerkz.annotation.instrumentation.asm;
import org.codehaus.aspectwerkz.annotation.Annotation;
import org.codehaus.aspectwerkz.annotation.AnnotationInfo;
import org.codehaus.aspectwerkz.reflect.ClassInfo;
import org.codehaus.aspectwerkz.reflect.MethodInfo;
import org.codehaus.aspectwerkz.reflect.ConstructorInfo;
import org.codehaus.aspectwerkz.reflect.FieldInfo;
import java.util.List;
import java.util.Iterator;
import java.util.ArrayList;
/**
* Helper class to extract annotations by their name from a ClassInfo structure.
*
* @author <a href="mailto:jboner@codehaus.org">Jonas Bon�r </a>
* @author <a href="mailto:alex@gnilux.com">Alexandre Vasseur</a>
*/
public class AsmAnnotations {
/**
* Return the annotation with a specific name for a specific class.
*
* @param annotationName the annotation name
* @param classInfo the ClassInfo object to find the annotation on.
* @return the annotation or null
*/
public static Annotation getAnnotation(final String annotationName, final ClassInfo classInfo) {
List annotations = classInfo.getAnnotations();
for (Iterator it = annotations.iterator(); it.hasNext();) {
AnnotationInfo annotationInfo = (AnnotationInfo)it.next();
if (annotationInfo.getName().equals(annotationName)) {
return annotationInfo.getAnnotation();
}
}
return null;
}
/**
* Return the annotation with a specific name for a specific method.
*
* @param annotationName the annotation name
* @param methodInfo the MethodInfo object to find the annotation on.
* @return the annotation or null
*/
public static Annotation getAnnotation(final String annotationName, final MethodInfo methodInfo) {
List annotations = methodInfo.getAnnotations();
for (Iterator it = annotations.iterator(); it.hasNext();) {
AnnotationInfo annotationInfo = (AnnotationInfo)it.next();
if (annotationInfo.getName().equals(annotationName)) {
return annotationInfo.getAnnotation();
}
}
return null;
}
/**
* Return the annotation with a specific name for a specific constructor.
*
* @param annotationName the annotation name
* @param constructorInfo the ConstructorInfo object to find the annotation on.
* @return the annotation or null
*/
public static Annotation getAnnotation(final String annotationName, final ConstructorInfo constructorInfo) {
List annotations = constructorInfo.getAnnotations();
for (Iterator it = annotations.iterator(); it.hasNext();) {
AnnotationInfo annotationInfo = (AnnotationInfo)it.next();
if (annotationInfo.getName().equals(annotationName)) {
return annotationInfo.getAnnotation();
}
}
return null;
}
/**
* Return the annotation with a specific name for a specific field.
*
* @param annotationName the annotation name
* @param fieldInfo the FieldInfo object to find the annotation on.
* @return the annotation or null
*/
public static Annotation getAnnotation(final String annotationName, final FieldInfo fieldInfo) {
List annotations = fieldInfo.getAnnotations();
for (Iterator it = annotations.iterator(); it.hasNext();) {
AnnotationInfo annotationInfo = (AnnotationInfo)it.next();
if (annotationInfo.getName().equals(annotationName)) {
return annotationInfo.getAnnotation();
}
}
return null;
}
/**
* Return a list with the annotations with a specific name for a specific class.
*
* @param annotationName the annotation name
* @param classInfo ClassInfo object to find the annotation on.
* @return the annotations in a list (can be empty)
*/
public static List getAnnotations(final String annotationName, final ClassInfo classInfo) {
List annotations = new ArrayList();
for (Iterator it = classInfo.getAnnotations().iterator(); it.hasNext();) {
AnnotationInfo annotationInfo = (AnnotationInfo)it.next();
if (annotationInfo.getName().equals(annotationName)) {
annotations.add(annotationInfo.getAnnotation());
}
}
return annotations;
}
/**
* Return a list with the annotations with a specific name for a specific method.
*
* @param annotationName the annotation name
* @param methodInfo the MethodInfo object to find the annotation on.
* @return the annotations in a list (can be empty)
*/
public static List getAnnotations(final String annotationName, final MethodInfo methodInfo) {
List annotations = new ArrayList();
for (Iterator it = methodInfo.getAnnotations().iterator(); it.hasNext();) {
AnnotationInfo annotationInfo = (AnnotationInfo)it.next();
if (annotationInfo.getName().equals(annotationName)) {
annotations.add(annotationInfo.getAnnotation());
}
}
return annotations;
}
/**
* Return a list with the annotations with a specific name for a specific constructor.
*
* @param annotationName the annotation name
* @param constructorInfo the ConstructorInfo object to find the annotation on.
* @return the annotations in a list (can be empty)
*/
public static List getAnnotations(final String annotationName, final ConstructorInfo constructorInfo) {
List annotations = new ArrayList();
for (Iterator it = constructorInfo.getAnnotations().iterator(); it.hasNext();) {
AnnotationInfo annotationInfo = (AnnotationInfo)it.next();
if (annotationInfo.getName().equals(annotationName)) {
annotations.add(annotationInfo.getAnnotation());
}
}
return annotations;
}
/**
* Return a list with the annotations with a specific name for a specific field.
*
* @param annotationName the annotation name
* @param fieldInfo the FieldInfo object to find the annotation on.
* @return the annotations in a list (can be empty)
*/
public static List getAnnotations(final String annotationName, final FieldInfo fieldInfo) {
List annotations = new ArrayList();
for (Iterator it = fieldInfo.getAnnotations().iterator(); it.hasNext();) {
AnnotationInfo annotationInfo = (AnnotationInfo)it.next();
if (annotationInfo.getName().equals(annotationName)) {
annotations.add(annotationInfo.getAnnotation());
}
}
return annotations;
}
}