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Add XML config support ResourceResolver & ResourceTransformer

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This change adds support for configuring ResourceResolvers and
ResourceTransformers with ResourceHttpRequestHandlers.

This is an example configuration:

    <mvc:resources mapping="/resources/**" location="/">
      <mvc:resolvers>
        <bean class="org.springframework.web.servlet.resource.PathResourceResolver"/>
        <ref bean="myResourceResolver"/>
      </mvc:resolvers>
      <mvc:transformers>
        <bean class="org.springframework.web.servlet.resource.CssLinkResourceTransformer" />
      </mvc:transformers>
    </mvc:resources>

    <bean id="myResourceResolver" class="org.example.resource.MyResourceResolver"/>

Issue: SPR-10951
This commit is contained in:
Brian Clozel
2014-06-30 15:25:30 +02:00
parent 87cbade8be
commit ea4a5d4722
5 changed files with 679 additions and 1 deletions
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37
spring-webmvc/src/main/java/org/springframework/web/servlet/config/ResourcesBeanDefinitionParser.java
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@@ -31,6 +31,7 @@ import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.core.Ordered;
import org.springframework.util.StringUtils;
import org.springframework.util.xml.DomUtils;
import org.springframework.web.servlet.handler.SimpleUrlHandlerMapping;
import org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter;
import org.springframework.web.servlet.resource.ResourceHttpRequestHandler;
@@ -108,10 +109,46 @@ class ResourcesBeanDefinitionParser implements BeanDefinitionParser {
resourceHandlerDef.getPropertyValues().add("cacheSeconds", cacheSeconds);
}
ManagedList<? super Object> resourceResolvers = parseResourceResolvers(parserContext, element, source);
if(!resourceResolvers.isEmpty()) {
resourceHandlerDef.getPropertyValues().add("resourceResolvers", resourceResolvers);
}
ManagedList<? super Object> resourceTransformers = parseResourceTransformers(parserContext, element, source);
if(!resourceTransformers.isEmpty()) {
resourceHandlerDef.getPropertyValues().add("resourceTransformers", resourceTransformers);
}
String beanName = parserContext.getReaderContext().generateBeanName(resourceHandlerDef);
parserContext.getRegistry().registerBeanDefinition(beanName, resourceHandlerDef);
parserContext.registerComponent(new BeanComponentDefinition(resourceHandlerDef, beanName));
return beanName;
}
private ManagedList<? super Object> parseResourceResolvers(ParserContext parserContext, Element element, Object source) {
Element resolversElement = DomUtils.getChildElementByTagName(element, "resolvers");
ManagedList<? super Object> resourceResolvers = new ManagedList<Object>();
if (resolversElement != null) {
resourceResolvers.setSource(source);
for (Element beanElement : DomUtils.getChildElementsByTagName(resolversElement, "bean", "ref")) {
Object object = parserContext.getDelegate().parsePropertySubElement(beanElement, null);
resourceResolvers.add(object);
}
}
return resourceResolvers;
}
private ManagedList<? super Object> parseResourceTransformers(ParserContext parserContext, Element element, Object source) {
Element transformersElement = DomUtils.getChildElementByTagName(element, "transformers");
ManagedList<? super Object> resourceTransformers = new ManagedList<Object>();
if (transformersElement != null) {
resourceTransformers.setSource(source);
for (Element beanElement : DomUtils.getChildElementsByTagName(transformersElement, "bean", "ref")) {
Object object = parserContext.getDelegate().parsePropertySubElement(beanElement, null);
resourceTransformers.add(object);
}
}
return resourceTransformers;
}
}