Integrating Orbeon with existing servlets

> Dear All,
>
> We have a system build from a central servlet which renders XML model
> files into XHTML. The XHTML includes links which includes an XPATH to
> the original fragment of XML in the pre-rendered XML document.
>
> This document is held in the controller servlet as a DOM in a hashtable.
>
> The flow is that
>
> 1)  Someone clicks on a link.
> 2) The link posts the XPath and url/name of document (along with a
> number to denote the operation is an extract) to the controller servlet
> (cs)
> 3) The cs uses the XPath & the url to find the relevant dom, extract the
> relevant piece of xml as a string.
> 4)  The cs then opens a popup/another jsp providing it with the relevant
> xml as a string contained in a form.
> 5) The JSP extracts the xml & ddoes whatever it does (e.g. if it was an
> XHTML WYSIWYG it provides it to Tiny_mce so it can be edited).
> 6) When the user is finished, the popup/jsp posts back to the cs the
> changed xml, the xpath, the url of the original document & a number
> denoting the required operation is an insert.
> 7) The cs then sets the value in the dom keyed by the url at the
> position keyed by the xpath to be the new value.
> 8) The cs then rerenders & the user's browser then refreshes.
>
>
> What I'd like to be able to do is to use XForms/Orbeon to produce all
> the popups as XForms.
>
>
> A) I'd like to be send the extracted xml to an orbeon hosted xform to
> function as the xform's model along with the xpath & file url.
> B) I'd have to be able accept, hold & then post back the xpath & file
> url outside of the model (or as a second hidden model).
>
>
> The main thing is to be able to post model/instance info to an orbeon
> hosted xform from a non-orbeon jsp/servlet.
>
> Any ideas?

> Adam Flinton wrote:
>> Dear All,
>>
>> We have a system build from a central servlet which renders XML model
>> files into XHTML. The XHTML includes links which includes an XPATH to
>> the original fragment of XML in the pre-rendered XML document.
>>
>> This document is held in the controller servlet as a DOM in a hashtable.
>>
>> The flow is that
>>
>> 1)  Someone clicks on a link.
>> 2) The link posts the XPath and url/name of document (along with a
>> number to denote the operation is an extract) to the controller
>> servlet (cs)
>> 3) The cs uses the XPath & the url to find the relevant dom, extract
>> the relevant piece of xml as a string.
>> 4)  The cs then opens a popup/another jsp providing it with the
>> relevant xml as a string contained in a form.
>> 5) The JSP extracts the xml & ddoes whatever it does (e.g. if it was
>> an XHTML WYSIWYG it provides it to Tiny_mce so it can be edited).
>> 6) When the user is finished, the popup/jsp posts back to the cs the
>> changed xml, the xpath, the url of the original document & a number
>> denoting the required operation is an insert.
>> 7) The cs then sets the value in the dom keyed by the url at the
>> position keyed by the xpath to be the new value.
>> 8) The cs then rerenders & the user's browser then refreshes.
>>
>>
>> What I'd like to be able to do is to use XForms/Orbeon to produce all
>> the popups as XForms.
>>
>>
>> A) I'd like to be send the extracted xml to an orbeon hosted xform to
>> function as the xform's model along with the xpath & file url.
>> B) I'd have to be able accept, hold & then post back the xpath & file
>> url outside of the model (or as a second hidden model).
>>
>>
>> The main thing is to be able to post model/instance info to an orbeon
>> hosted xform from a non-orbeon jsp/servlet.
>>
>> Any ideas?
>
> One way of doing it:
>
> o Have your current code that produces XML store the resulting XML in
> the Servlet Request object.
>
> o Forward the request to a path in your webapp (or in another webapp)
> which is handled by OPS.
>
> o Write an page model XML pipeline with OPS which fetches the XML
> using the Scope generator (it supports DOM and dom4j among others) and
> returns it on its "data" output.
>
> o In your page view, whether a static XHTML with XInclude, or an XSLT
> view, include the resulting XML as an XForms model or instance.
>
> There are other ways, such as using an XForms submission upon
> xforms-ready to call your Servlet or JSP page, assuming it can return
> on its output well-formed XML. You could also use the OPS Servlet
> Include generator, or Servlet Filter generator.
>
> I would try to use forwarding or an XForms submission upon
> xforms-ready first.
>
> -Erik
>
>
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