root
/
spring-framework
mirror of https://github.com/spring-projects/spring-framework.git
1
0
Fork 0
Code Issues Actions Packages Projects Releases Wiki Activity

factored out getRequestDispatcher template method (SPR-7118)

This commit is contained in:
Juergen Hoeller 2010-04-22 21:46:56 +00:00
parent 8df0403e99
commit 101a5cd8ff
1 changed files with 30 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/view/InternalResourceView.java
View File

@ -1,5 +1,5 @@
/*
* Copyright 2002-2008 the original author or authors.
* 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.
@ -214,10 +214,10 @@ public class InternalResourceView extends AbstractUrlBasedView {
String dispatcherPath = prepareForRendering(requestToExpose, response);
// Obtain a RequestDispatcher for the target resource (typically a JSP).
RequestDispatcher rd = requestToExpose.getRequestDispatcher(dispatcherPath);
RequestDispatcher rd = getRequestDispatcher(requestToExpose, dispatcherPath);
if (rd == null) {
throw new ServletException(
"Could not get RequestDispatcher for [" + getUrl() + "]: check that this file exists within your WAR");
throw new ServletException("Could not get RequestDispatcher for [" + getUrl() +
"]: Check that the corresponding file exists within your web application archive!");
}
// If already included or response already committed, perform include, else forward.
@ -239,6 +239,23 @@ public class InternalResourceView extends AbstractUrlBasedView {
}
}
/**
* Get the request handle to expose to the RequestDispatcher, i.e. to the view.
* <p>The default implementation wraps the original request for exposure of
* Spring beans as request attributes (if demanded).
* @param originalRequest the original servlet request as provided by the engine
* @return the wrapped request, or the original request if no wrapping is necessary
* @see #setExposeContextBeansAsAttributes
* @see org.springframework.web.context.support.ContextExposingHttpServletRequest
*/
protected HttpServletRequest getRequestToExpose(HttpServletRequest originalRequest) {
if (this.exposeContextBeansAsAttributes || this.exposedContextBeanNames != null) {
return new ContextExposingHttpServletRequest(
originalRequest, getWebApplicationContext(), this.exposedContextBeanNames);
}
return originalRequest;
}
/**
* Expose helpers unique to each rendering operation. This is necessary so that
* different rendering operations can't overwrite each other's contexts etc.
@ -281,20 +298,16 @@ public class InternalResourceView extends AbstractUrlBasedView {
}
/**
* Get the request handle to expose to the RequestDispatcher, i.e. to the view.
* <p>The default implementation wraps the original request for exposure of
* Spring beans as request attributes (if demanded).
* @param originalRequest the original servlet request as provided by the engine
* @return the wrapped request, or the original request if no wrapping is necessary
* @see #setExposeContextBeansAsAttributes
* @see org.springframework.web.context.support.ContextExposingHttpServletRequest
* Obtain the RequestDispatcher to use for the forward/include.
* <p>The default implementation simply calls
* {@link HttpServletRequest#getRequestDispatcher(String)}.
* Can be overridden in subclasses.
* @param request current HTTP request
* @param path the target URL (as returned from {@link #prepareForRendering})
* @return a corresponding RequestDispatcher
*/
protected HttpServletRequest getRequestToExpose(HttpServletRequest originalRequest) {
if (this.exposeContextBeansAsAttributes || this.exposedContextBeanNames != null) {
return new ContextExposingHttpServletRequest(
originalRequest, getWebApplicationContext(), this.exposedContextBeanNames);
}
return originalRequest;
protected RequestDispatcher getRequestDispatcher(HttpServletRequest request, String path) {
return request.getRequestDispatcher(path);
}
/**