/*
* (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
*
* 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.
*
* Contributors:
* bstefanescu
*
* $Id$
*/
package org.nuxeo.runtime.annotations;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
/**
* @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
*/
public class AnnotatedClass<T> {
protected AnnotatedClass<?> superClass;
protected final Class<T> clazz;
protected final Map<Class<? extends Annotation>, Annotation> annotations;
protected final Map<Method, AnnotatedMethod> methods;
public AnnotatedClass(Class<T> clazz) {
this.clazz = clazz;
methods = new HashMap<Method, AnnotatedMethod>();
annotations = new HashMap<Class<? extends Annotation>, Annotation>();
}
public Class<?> getAnnotatedClass() {
return clazz;
}
@SuppressWarnings("unchecked")
public <A extends Annotation> A getAnnotation(Class<A> annotationClass) {
return (A) annotations.get(annotationClass);
}
public <A extends Annotation> A getDeclaredAnnotation(Class<A> annotationClass) {
return clazz.getAnnotation(annotationClass);
}
public Annotation[] getAnnotations() {
return annotations.values().toArray(new Annotation[annotations.size()]);
}
public Annotation[] getDeclaredAnnotations() {
return clazz.getDeclaredAnnotations();
}
public boolean isAnnotationPresent(Class<? extends Annotation> annotationClass) {
return annotations.containsKey(annotationClass);
}
public boolean isDeclaringAnnotation(Class<? extends Annotation> annotationClass) {
return clazz.isAnnotationPresent(annotationClass);
}
public AnnotatedMethod getAnnotatedMethod(Method method) {
return methods.get(method);
}
public AnnotatedMethod getAnnotatedMethod(String name, Class<?>... parameterTypes) throws NoSuchMethodException {
return getAnnotatedMethod(clazz.getMethod(name, parameterTypes));
}
public AnnotatedMethod getDeclaredAnnotatedMethod(Method method) {
AnnotatedMethod am = methods.get(method);
return am != null && am.method.getDeclaringClass() == clazz ? am : null;
}
public boolean hasAnnotatedMethods() {
return !methods.isEmpty();
}
public boolean isDeclaringAnnotatedMethods() {
if (methods.isEmpty()) {
return false;
}
for (AnnotatedMethod am : methods.values()) {
if (am.method.getDeclaringClass() == clazz) {
return true;
}
}
return false;
}
public AnnotatedMethod[] getAnnotatedMethods() {
return methods.values().toArray(new AnnotatedMethod[methods.size()]);
}
public AnnotatedMethod[] getDeclaredAnnotatedMethods() {
ArrayList<AnnotatedMethod> result = new ArrayList<AnnotatedMethod>();
for (AnnotatedMethod am : methods.values()) {
if (am.method.getDeclaringClass() == clazz) {
result.add(am);
}
}
return result.toArray(new AnnotatedMethod[result.size()]);
}
// TODO: cache this?
public AnnotatedMethod[] getAnnotatedMethods(Class<? extends Annotation> annotationClass) {
ArrayList<AnnotatedMethod> result = new ArrayList<AnnotatedMethod>();
for (AnnotatedMethod am : methods.values()) {
if (am.annotations.containsKey(annotationClass)) {
result.add(am);
}
}
return result.toArray(new AnnotatedMethod[result.size()]);
}
public AnnotatedMethod[] getDeclaredAnnotatedMethods(Class<? extends Annotation> annotationClass) {
ArrayList<AnnotatedMethod> result = new ArrayList<AnnotatedMethod>();
for (AnnotatedMethod am : methods.values()) {
if (am.method.getDeclaringClass() == clazz && am.annotations.containsKey(annotationClass)) {
result.add(am);
}
}
return result.toArray(new AnnotatedMethod[result.size()]);
}
public void addMethod(AnnotatedMethod method) {
methods.put(method.method, method);
// TODO cache annotations to annotated method?
}
@Override
public int hashCode() {
return clazz.hashCode();
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj == null) {
return false;
}
if (obj.getClass() == AnnotatedClass.class) {
return ((AnnotatedClass<?>) obj).clazz == clazz;
}
return false;
}
@Override
public String toString() {
return "AnnotatedCass: " + clazz;
}
}