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Posted to issues@struts.apache.org by "Lukasz Lenart (Jira)" <ji...@apache.org> on 2023/06/19 07:28:00 UTC
[jira] [Closed] (WW-5261) Refactor TagUtils#getStack()
[ https://issues.apache.org/jira/browse/WW-5261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lukasz Lenart closed WW-5261.
-----------------------------
Resolution: Fixed
> Refactor TagUtils#getStack()
> ----------------------------
>
> Key: WW-5261
> URL: https://issues.apache.org/jira/browse/WW-5261
> Project: Struts 2
> Issue Type: Improvement
> Components: Core, Core Tags
> Reporter: Lukasz Lenart
> Priority: Major
> Fix For: 6.2.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Such code
> {code:java}
> if (stack == null) {
> HttpServletResponse res = (HttpServletResponse) pageContext.getResponse();
> Dispatcher du = Dispatcher.getInstance();
> if (du == null) {
> throw new ConfigurationException("The Struts dispatcher cannot be found. This is usually caused by "+
> "using Struts tags without the associated filter. Struts tags are only usable when the request "+
> "has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag.");
> }
> stack = du.getContainer().getInstance(ValueStackFactory.class).createValueStack();
> HttpParameters params = HttpParameters.create(req.getParameterMap()).build();
> Map<String, Object> extraContext = du.createContextMap(new RequestMap(req),
> params,
> new SessionMap<>(req),
> new ApplicationMap(pageContext.getServletContext()),
> req,
> res);
> extraContext.put(ServletActionContext.PAGE_CONTEXT, pageContext);
> stack.getContext().putAll(extraContext);
> req.setAttribute(ServletActionContext.STRUTS_VALUESTACK_KEY, stack);
> // also tie this stack/context to the ThreadLocal
> ActionContext.of(stack.getContext()).bind();
> }
> {code}
> should be replaced with an exception, if {{stack}} is null, it means tag was used out of action scope.
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