| [rmf-dev] Timeout for Presentation URLs |
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Hello Mark, Turns out that we have a potential usability problem. RMF seems to hang, if a namespace that RMF does not know about is referenced. For example, the tool extensions may be provided with a namespace in the root element: xmlns:rtf="http://pror.org/presentation/rtf" If RMF already knows about this URL, then everything works fine. But if not, then the parser tries to retrieve the URLs content. If this URL exists but contains information that can not be parsed properly, then we may have a problem. As third parties can contribute arbitrary presentations, we cannot control this. The namespace given is a good example for that. The URL currently redirects to eclipse.org, but to a web page, not a schema. If the ReqIF file contains elements from this namespace, and the presentation is not installed, then RMF hangs for roughly 20 minutes (!). So the first question is: Do we even want to resolve external namespaces, and is there a way to disable it? And the second question: If the first is not possible (or not a good idea), can we reduce the timeout? I looked, but could not find such an option. And last, to prevent this problem at least for our own presentations, I would propose to change the URLs for all RMF-Presentations to http://eclipse.org/rmf/..., and to ensure that these really exist. Obviously, this will break existing presentations. Considering that you wanted to change the ToolExtension-Handling and its URL as well, we should coordinate this to make sure it happens at the same time. Thanks, - Michael --
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