/*
* Copyright 2002-2008 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.beans.factory.parsing;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.PropertyValue;
import org.springframework.beans.PropertyValues;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.config.BeanReference;
/**
* ComponentDefinition based on a standard BeanDefinition, exposing the given bean
* definition as well as inner bean definitions and bean references for the given bean.
*
* @author Rob Harrop
* @author Juergen Hoeller
* @since 2.0
*/
public class BeanComponentDefinition extends BeanDefinitionHolder implements ComponentDefinition {
private BeanDefinition[] innerBeanDefinitions;
private BeanReference[] beanReferences;
/**
* Create a new BeanComponentDefinition for the given bean.
* @param beanDefinition the BeanDefinition
* @param beanName the name of the bean
*/
public BeanComponentDefinition(BeanDefinition beanDefinition, String beanName) {
super(beanDefinition, beanName);
findInnerBeanDefinitionsAndBeanReferences(beanDefinition);
}
/**
* Create a new BeanComponentDefinition for the given bean.
* @param beanDefinition the BeanDefinition
* @param beanName the name of the bean
* @param aliases alias names for the bean, or <code>null</code> if none
*/
public BeanComponentDefinition(BeanDefinition beanDefinition, String beanName, String[] aliases) {
super(beanDefinition, beanName, aliases);
findInnerBeanDefinitionsAndBeanReferences(beanDefinition);
}
/**
* Create a new BeanComponentDefinition for the given bean.
* @param holder the BeanDefinitionHolder encapsulating the
* bean definition as well as the name of the bean
*/
public BeanComponentDefinition(BeanDefinitionHolder holder) {
super(holder);
findInnerBeanDefinitionsAndBeanReferences(holder.getBeanDefinition());
}
private void findInnerBeanDefinitionsAndBeanReferences(BeanDefinition beanDefinition) {
List innerBeans = new ArrayList();
List references = new ArrayList();
PropertyValues propertyValues = beanDefinition.getPropertyValues();
for (int i = 0; i < propertyValues.getPropertyValues().length; i++) {
PropertyValue propertyValue = propertyValues.getPropertyValues()[i];
Object value = propertyValue.getValue();
if (value instanceof BeanDefinitionHolder) {
innerBeans.add(((BeanDefinitionHolder) value).getBeanDefinition());
}
else if (value instanceof BeanDefinition) {
innerBeans.add(value);
}
else if (value instanceof BeanReference) {
references.add(value);
}
}
this.innerBeanDefinitions = (BeanDefinition[]) innerBeans.toArray(new BeanDefinition[innerBeans.size()]);
this.beanReferences = (BeanReference[]) references.toArray(new BeanReference[references.size()]);
}
public String getName() {
return getBeanName();
}
public String getDescription() {
return getShortDescription();
}
public BeanDefinition[] getBeanDefinitions() {
return new BeanDefinition[] {getBeanDefinition()};
}
public BeanDefinition[] getInnerBeanDefinitions() {
return this.innerBeanDefinitions;
}
public BeanReference[] getBeanReferences() {
return this.beanReferences;
}
/**
* This implementation returns this ComponentDefinition's description.
* @see #getDescription()
*/
public String toString() {
return getDescription();
}
/**
* This implementations expects the other object to be of type BeanComponentDefinition
* as well, in addition to the superclass's equality requirements.
*/
public boolean equals(Object other) {
return (this == other || (other instanceof BeanComponentDefinition && super.equals(other)));
}
}