/*
* Copyright 2002-2016 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.security.config.http;
import org.w3c.dom.Element;
import org.springframework.beans.BeanMetadataElement;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.ClassUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.filter.CorsFilter;
/**
* Parser for the {@code CorsFilter}.
*
* @author Rob Winch
* @since 4.1.1
*/
public class CorsBeanDefinitionParser {
private static final String HANDLER_MAPPING_INTROSPECTOR = "org.springframework.web.servlet.handler.HandlerMappingIntrospector";
private static final String ATT_SOURCE = "configuration-source-ref";
private static final String ATT_REF = "ref";
public BeanMetadataElement parse(Element element, ParserContext parserContext) {
if(element == null) {
return null;
}
String filterRef = element.getAttribute(ATT_REF);
if(StringUtils.hasText(filterRef)) {
return new RuntimeBeanReference(filterRef);
}
BeanMetadataElement configurationSource = getSource(element, parserContext);
if(configurationSource == null) {
throw new BeanCreationException("Could not create CorsFilter");
}
BeanDefinitionBuilder filterBldr = BeanDefinitionBuilder.rootBeanDefinition(CorsFilter.class);
filterBldr.addConstructorArgValue(configurationSource);
return filterBldr.getBeanDefinition();
}
public BeanMetadataElement getSource(Element element, ParserContext parserContext) {
String configurationSourceRef = element.getAttribute(ATT_SOURCE);
if (StringUtils.hasText(configurationSourceRef)) {
return new RuntimeBeanReference(configurationSourceRef);
}
boolean mvcPresent = ClassUtils.isPresent(HANDLER_MAPPING_INTROSPECTOR,
getClass().getClassLoader());
if(!mvcPresent) {
return null;
}
BeanDefinitionBuilder configurationSourceBldr = BeanDefinitionBuilder.rootBeanDefinition(HANDLER_MAPPING_INTROSPECTOR);
configurationSourceBldr.setAutowireMode(AutowireCapableBeanFactory.AUTOWIRE_CONSTRUCTOR);
return configurationSourceBldr.getBeanDefinition();
}
}