/**
* Attempts to render the requested gadget.
*
* @return The results of the rendering attempt.
*
* TODO: Localize error messages.
*/
public RenderingResults Render(GadgetContext context)
{
if (!ValidateParent(context))
{
return(RenderingResults.error("Unsupported parent parameter. Check your container code."));
}
try
{
Gadget gadget = processor.Process(context);
if (gadget.getCurrentView() == null)
{
return(RenderingResults.error("Unable to locate an appropriate view in this gadget. " +
"Requested: '" + gadget.getContext().getView() +
"' Available: " + String.Join(",", gadget.getSpec().getViews().Keys.ToArray())));
}
if (gadget.getCurrentView().getType() == View.ContentType.URL)
{
return(RenderingResults.mustRedirect(getRedirect(gadget)));
}
GadgetSpec spec = gadget.getSpec();
if (!lockedDomainService.gadgetCanRender(context.getHost(), spec, context.getContainer()))
{
return(RenderingResults.mustRedirect(getRedirect(gadget)));
}
return(RenderingResults.ok(renderer.render(gadget)));
}
catch (RenderingException e)
{
return(LogError(context.getUrl(), e));
}
catch (ProcessingException e)
{
return(LogError(context.getUrl(), e));
}
catch (Exception e)
{
if (e.GetBaseException() is GadgetException)
{
return(LogError(context.getUrl(), e.GetBaseException()));
}
throw;
}
}
private static RenderingResults LogError(URI gadgetUrl, Exception t)
{
return(RenderingResults.error(t.Message));
}