package org.springframework.security.config.http;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.ManagedList;
import org.springframework.beans.factory.support.ManagedMap;
import org.springframework.beans.factory.xml.BeanDefinitionDecorator;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.security.config.Elements;
import org.springframework.util.StringUtils;
import org.springframework.util.xml.DomUtils;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* Sets the filter chain Map for a FilterChainProxy bean declaration.
*
* @author Luke Taylor
*/
public class FilterChainMapBeanDefinitionDecorator implements BeanDefinitionDecorator {
@SuppressWarnings("unchecked")
public BeanDefinitionHolder decorate(Node node, BeanDefinitionHolder holder, ParserContext parserContext) {
BeanDefinition filterChainProxy = holder.getBeanDefinition();
Map filterChainMap = new LinkedHashMap();
Element elt = (Element)node;
MatcherType matcherType = MatcherType.fromElement(elt);
List<Element> filterChainElts = DomUtils.getChildElementsByTagName(elt, Elements.FILTER_CHAIN);
for (Element chain : filterChainElts) {
String path = chain.getAttribute(HttpSecurityBeanDefinitionParser.ATT_PATH_PATTERN);
String filters = chain.getAttribute(HttpSecurityBeanDefinitionParser.ATT_FILTERS);
if(!StringUtils.hasText(path)) {
parserContext.getReaderContext().error("The attribute '" + HttpSecurityBeanDefinitionParser.ATT_PATH_PATTERN +
"' must not be empty", elt);
}
if(!StringUtils.hasText(filters)) {
parserContext.getReaderContext().error("The attribute '" + HttpSecurityBeanDefinitionParser.ATT_FILTERS +
"'must not be empty", elt);
}
BeanDefinition matcher = matcherType.createMatcher(path, null);
if (filters.equals(HttpSecurityBeanDefinitionParser.OPT_FILTERS_NONE)) {
filterChainMap.put(matcher, Collections.EMPTY_LIST);
} else {
String[] filterBeanNames = StringUtils.tokenizeToStringArray(filters, ",");
ManagedList filterChain = new ManagedList(filterBeanNames.length);
for (String name : filterBeanNames) {
filterChain.add(new RuntimeBeanReference(name));
}
filterChainMap.put(matcher, filterChain);
}
}
ManagedMap map = new ManagedMap(filterChainMap.size());
map.putAll(filterChainMap);
filterChainProxy.getPropertyValues().addPropertyValue("filterChainMap", map);
return holder;
}
}