/**
* 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.cxf.configuration.spring;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.apache.cxf.common.util.StringUtils;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
import org.springframework.beans.factory.xml.ParserContext;
/**
* This class makes it easy to create two simultaneous beans - a factory bean and the bean
* that the factory produces.
*/
public abstract class AbstractFactoryBeanDefinitionParser extends AbstractBeanDefinitionParser {
private static boolean factoriesAreAbstract = true;
public static void setFactoriesAreAbstract(boolean b) {
factoriesAreAbstract = b;
}
@SuppressWarnings("deprecation")
@Override
protected void doParse(Element element, ParserContext ctx, BeanDefinitionBuilder bean) {
Class factoryClass = getFactoryClass();
BeanDefinitionBuilder factoryBean = bean;
if (!FactoryBean.class.isAssignableFrom(factoryClass)) {
factoryBean = BeanDefinitionBuilder.rootBeanDefinition(getFactoryClass());
}
NamedNodeMap atts = element.getAttributes();
boolean createdFromAPI = false;
boolean setBus = false;
for (int i = 0; i < atts.getLength(); i++) {
Attr node = (Attr) atts.item(i);
String val = node.getValue();
String pre = node.getPrefix();
String name = node.getLocalName();
if ("createdFromAPI".equals(name)) {
factoryBean.setAbstract(true);
bean.setAbstract(true);
createdFromAPI = true;
} else if ("abstract".equals(name)) {
factoryBean.setAbstract(true);
bean.setAbstract(true);
} else if (!"id".equals(name) && !"name".equals(name) && isAttribute(pre, name)) {
if ("bus".equals(name)) {
setBus = true;
}
mapAttribute(factoryBean, element, name, val);
}
}
if (!setBus) {
addBusWiringAttribute(factoryBean, BusWiringType.PROPERTY);
}
Node node = element.getFirstChild();
while (node != null) {
if (node.getNodeType() == Node.ELEMENT_NODE) {
String name = node.getLocalName();
mapElement(ctx, factoryBean, (Element) node, name);
}
node = node.getNextSibling();
}
String id = getIdOrName(element);
BeanDefinition container = ctx.getContainingBeanDefinition();
boolean noFactory = false;
if (StringUtils.isEmpty(id)) {
if (container == null) {
id = BeanDefinitionReaderUtils.generateBeanName(bean.getBeanDefinition(),
ctx.getRegistry(),
false);
} else {
id = BeanDefinitionReaderUtils.generateBeanName(bean.getBeanDefinition(),
ctx.getRegistry(),
true);
noFactory = true;
//inner bean, no need for the factory to be public at all
}
}
if (createdFromAPI) {
id = id + getSuffix();
}
if (FactoryBean.class.isAssignableFrom(getFactoryClass())) {
if (!noFactory) {
AbstractBeanDefinition def = factoryBean.getRawBeanDefinition().cloneBeanDefinition();
def.setBeanClass(getRawFactoryClass());
def.setAbstract(factoriesAreAbstract);
def.setLazyInit(true);
ctx.getRegistry().registerBeanDefinition(id + getFactoryIdSuffix(),
def);
}
bean.getBeanDefinition().setAttribute("id", id);
} else {
String factoryId = id + getFactoryIdSuffix();
ctx.getRegistry().registerBeanDefinition(factoryId, factoryBean.getBeanDefinition());
bean.getBeanDefinition().setAttribute("id", id);
bean.setFactoryBean(factoryId, "create");
}
}
protected abstract Class getFactoryClass();
protected Class getRawFactoryClass() {
return getFactoryClass();
}
/**
* @return The Spring ID of the factory bean.
*/
protected abstract String getFactoryIdSuffix();
}