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https://issues.apache.org/jira/browse/SLING-140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Felix Meschberger closed SLING-140.
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Resolution: Fixed
By creating a separate project for the ServletResolver (sling/servlet-resolver)
(see SLING-141) the error handler has also been moved to that new project and
the proposed functionality has been implemented.
> Replace current errorhandler mechanism by a more flexible one
> -------------------------------------------------------------
>
> Key: SLING-140
> URL: https://issues.apache.org/jira/browse/SLING-140
> Project: Sling
> Issue Type: Improvement
> Components: Core
> Reporter: Felix Meschberger
> Assignee: Felix Meschberger
> Fix For: 2.0.0
>
>
> Currently error handling is supported by calling ErrorHandlerServlets which
> must be registered as OSGi services. Error handling scripts are not supported
> at the moment. This mechanism should be replaced by leveraging the Servlet
> and Script resolution mechanism built into Sling for normal request
> processing.
> For more information and background see the dev list thread [1].
> (1) for status codes.
> This handling is called whenever HttpServletResponse.sendError is called
> regardless of the actual status code. HttpServletResponse.setStatus will not
> trigger this error handling !
> Servlet s = resolveScriptOrServlet(code);
> if (s == null) {
> s = resolveScriptOrServlet(500);
> }
> if (s == null) {
> s = defaultErrorHandlerServlet;
> }
> (2) Likewise for Throwables it would be:
> This handling is called whenever an uncaught Throwable (also IOException and
> ServletException) is caught by the SlingMainServlet.
> Class<?> tClass = throwable.getClass();
> Servlet s = null;
> while (s == null && tClass != Object.class) {
> s = resolveScriptOrServlet(tClass.getSimpleName().toLowerCase());
> tClass = tClass.getSuperclass();
> }
> if (s == null) {
> s = resolveScriptOrServlet(500);
> }
> if (s == null) {
> s = defaultErrorHandlerServlet;
> }
> [1] http://www.mail-archive.com/[email protected]/msg01388.html
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