ActionInvocation invocation) throws Exception {
ValueStack stack = ActionContext.getContext().getValueStack();
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
JspFactory jspFactory = null;
ServletContext servletContext = ServletActionContext
.getServletContext();
Servlet servlet = JspSupportServlet.jspSupportServlet;
velocityManager.init(servletContext);
boolean usedJspFactory = false;
PageContext pageContext = (PageContext) ActionContext.getContext().get(
ServletActionContext.PAGE_CONTEXT);
if (pageContext == null && servlet != null) {
jspFactory = JspFactory.getDefaultFactory();
pageContext = jspFactory.getPageContext(servlet, request, response,
null, true, 8192, true);
ActionContext.getContext().put(ServletActionContext.PAGE_CONTEXT,
pageContext);
usedJspFactory = true;
}
try {
String encoding = getEncoding(finalLocation);
String contentType = getContentType(finalLocation);
if (encoding != null) {
contentType = contentType + ";charset=" + encoding;
}
response.setContentType(contentType);
Template t = getTemplate(stack,
velocityManager.getVelocityEngine(), invocation,
finalLocation, encoding);
Context context = createContext(velocityManager, stack, request,
response, finalLocation);
Writer writer = new OutputStreamWriter(response.getOutputStream(),
encoding);
t.merge(context, writer);
// always flush the writer (we used to only flush it if this was a
// jspWriter, but someone asked
// to do it all the time (WW-829). Since Velocity support is being
// deprecated, we'll oblige :)
writer.flush();
} catch (Exception e) {
LOG.error("Unable to render Velocity Template, '" + finalLocation
+ "'", e);
throw e;
} finally {
if (usedJspFactory) {
jspFactory.releasePageContext(pageContext);
}
}
return;
}