/*
* Copyright 2002-2010 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.web.servlet.config;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping;
import org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter;
import org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter;
/**
* Convenience methods for use in MVC namespace BeanDefinitionParsers.
*
* @author Rossen Stoyanchev
* @since 3.1
*/
abstract class MvcNamespaceUtils {
private static final String BEAN_NAME_URL_HANDLER_MAPPING_BEAN_NAME =
BeanNameUrlHandlerMapping.class.getName();
private static final String SIMPLE_CONTROLLER_HANDLER_ADAPTER_BEAN_NAME =
SimpleControllerHandlerAdapter.class.getName();
private static final String HTTP_REQUEST_HANDLER_ADAPTER_BEAN_NAME =
HttpRequestHandlerAdapter.class.getName();
public static void registerDefaultComponents(ParserContext parserContext, Object source) {
registerBeanNameUrlHandlerMapping(parserContext, source);
registerHttpRequestHandlerAdapter(parserContext, source);
registerSimpleControllerHandlerAdapter(parserContext, source);
}
/**
* Registers an {@link HttpRequestHandlerAdapter} under a well-known
* name unless already registered.
*/
private static void registerBeanNameUrlHandlerMapping(ParserContext parserContext, Object source) {
if (!parserContext.getRegistry().containsBeanDefinition(BEAN_NAME_URL_HANDLER_MAPPING_BEAN_NAME)){
RootBeanDefinition beanNameMappingDef = new RootBeanDefinition(BeanNameUrlHandlerMapping.class);
beanNameMappingDef.setSource(source);
beanNameMappingDef.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
beanNameMappingDef.getPropertyValues().add("order", 2); // consistent with WebMvcConfigurationSupport
parserContext.getRegistry().registerBeanDefinition(BEAN_NAME_URL_HANDLER_MAPPING_BEAN_NAME, beanNameMappingDef);
parserContext.registerComponent(new BeanComponentDefinition(beanNameMappingDef, BEAN_NAME_URL_HANDLER_MAPPING_BEAN_NAME));
}
}
/**
* Registers an {@link HttpRequestHandlerAdapter} under a well-known
* name unless already registered.
*/
private static void registerHttpRequestHandlerAdapter(ParserContext parserContext, Object source) {
if (!parserContext.getRegistry().containsBeanDefinition(HTTP_REQUEST_HANDLER_ADAPTER_BEAN_NAME)) {
RootBeanDefinition handlerAdapterDef = new RootBeanDefinition(HttpRequestHandlerAdapter.class);
handlerAdapterDef.setSource(source);
handlerAdapterDef.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
parserContext.getRegistry().registerBeanDefinition(HTTP_REQUEST_HANDLER_ADAPTER_BEAN_NAME, handlerAdapterDef);
parserContext.registerComponent(new BeanComponentDefinition(handlerAdapterDef, HTTP_REQUEST_HANDLER_ADAPTER_BEAN_NAME));
}
}
/**
* Registers a {@link SimpleControllerHandlerAdapter} under a well-known
* name unless already registered.
*/
private static void registerSimpleControllerHandlerAdapter(ParserContext parserContext, Object source) {
if (!parserContext.getRegistry().containsBeanDefinition(SIMPLE_CONTROLLER_HANDLER_ADAPTER_BEAN_NAME)) {
RootBeanDefinition handlerAdapterDef = new RootBeanDefinition(SimpleControllerHandlerAdapter.class);
handlerAdapterDef.setSource(source);
handlerAdapterDef.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
parserContext.getRegistry().registerBeanDefinition(SIMPLE_CONTROLLER_HANDLER_ADAPTER_BEAN_NAME, handlerAdapterDef);
parserContext.registerComponent(new BeanComponentDefinition(handlerAdapterDef, SIMPLE_CONTROLLER_HANDLER_ADAPTER_BEAN_NAME));
}
}
}