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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tuscany.sca.implementation.spring.processor;
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.InstantiationAwareBeanPostProcessorAdapter;
import org.springframework.util.Assert;
public class ConstructorAnnotationProcessor extends InstantiationAwareBeanPostProcessorAdapter {
private Class<? extends Annotation> constructorAnnotationType = org.oasisopen.sca.annotation.Constructor.class;
private Class<? extends Annotation> autowiredAnnotationType = Autowired.class;
public ConstructorAnnotationProcessor() {
// Default constructor.
}
/**
* Set the 'autowired' annotation type, to be used on constructors, fields,
* setter methods and arbitrary config methods.
*/
public void setAutowiredAnnotationType(Class<? extends Annotation> autowiredAnnotationType) {
Assert.notNull(autowiredAnnotationType, "'autowiredAnnotationType' must not be null");
this.autowiredAnnotationType = autowiredAnnotationType;
}
/**
* Return the 'autowired' annotation type.
*/
protected Class<? extends Annotation> getAutowiredAnnotationType() {
return this.autowiredAnnotationType;
}
/**
* Return the 'constructor' annotation type.
*/
protected Class<? extends Annotation> getConstructorAnnotationType() {
return this.constructorAnnotationType;
}
/**
* Sets the 'constructor' annotation type.
*/
public void setConstructorAnnotationType(Class<? extends Annotation> constructorAnnotationType) {
Assert.notNull(constructorAnnotationType, "'constructorAnnotationType' type must not be null.");
this.constructorAnnotationType = constructorAnnotationType;
}
/**
* This method is used to execute before a bean's initialization callback.
*
* @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessBeforeInitialization(java.lang.Object, java.lang.String)
*/
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
return bean;
}
/**
* This method is used to execute after a bean's initialization callback.
*
* @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessAfterInitialization(java.lang.Object, java.lang.String)
*/
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
return bean;
}
public Constructor[] determineCandidateConstructors(Class beanClass, String beanName) throws BeansException {
/*Constructor[] declaredConstructors = beanClass.getDeclaredConstructors();
Method[] declaredMethods = beanClass.getDeclaredMethods();
List candidates = new ArrayList(declaredConstructors.length);
for (int i = 0; i < declaredMethods.length; i++) {
Method method = declaredMethods[i];
Annotation annotation = method.getAnnotation(getConstructorAnnotationType());
if (annotation != null) {
if (Modifier.isStatic(method.getModifiers())) {
throw new IllegalStateException("Constructor annotation is not supported on static methods");
}
if (candidates.size() == 1) {
throw new IllegalStateException("Only one method is allowed to have constructor annotation in a bean: " + method);
}
candidates.add(method);
}
}
return (Constructor[]) candidates.toArray(new Constructor[candidates.size()]);*/
return null;
}
}
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