Re: Using Jivan in a Barracuda App

If I load a document with Jivan and then render it with DefaultDOMWriter
everything works fine. However, If I use the page to create a BTemplate
component to customize it using a TemplateModel, then the page does not render
correctly, especially when rendering tables. I end up getting a blank <TD></TD>
between each cell in the table and a blank <TR></TR> between each row.

Can a document loaded with Jivan be used in a BTemplate component? Am I doing
something wrong? Any ideas?

Thanks in advance,
David Robison

Quoting David R Robison <[email protected]>:

> Thanks for the info...
> The problem I'm now having is in modifying the loaded HTML file. Here is
> my code:
> 
> 	class RenderSitePageHandler extends DefaultBaseEventListener {
> 		public void handleViewEvent(ViewEventContext context) throws
> EventException,
> ServletException, IOException {
> 			HttpServletRequest req = context.getRequest();
> 
> 			//get the XMLC object
> 			Document page =
> DefaultDOMLoader.getGlobalInstance().getDOM("/WEB-INF/jivan/SitePage.html");
> 			DocumentFactory docFactory = DocumentFactory.getInstance();
> 			docFactory.docManFor(page).repair(page);
> 
> 			//create a template component and render it
> 			Node node = page.getElementById("SiteForm");
> 			BTemplate templateComp = new BTemplate(new SiteModel(context));
> 			templateComp.setView(new DefaultTemplateView(node));
> 			try {templateComp.render(new DefaultViewContext(context));}
> 			catch (RenderException re) {logger.warn("Render err:"+re);}
> 
> 			//now actually render the page 
> 			new DefaultDOMWriter().write(page, context.getResponse());
> 		}
> 	}
> 
> If I comment out the section where I create a template componet then the
> page
> renders fine. If not, then, when I write out the DOM, I get an empty
> <td></td>
> between each cell in my table and an empty <tr></tr> between each row.
> I'm not
> adding new rows to the table, just populating a form that uses tables.
> 
> Any idea? Am I missing something?
> 
> Thanks in advance,
> David
> 
> Quoting Jacob Kjome <[email protected]>:
> 
> > DefaultDOMWriter uses XMLC to format the DOM.  You can create your
> own
> > 
> > DOMWriter if you want.  This is actually why I wanted to rename 
> > DefaultDOMWriter to XMLCDOMWriter.  Calling is "Default" hides its 
> > implementation too much, and the whole point to switch out
> > implementations 
> > at will anyway, not use a single default one.  The DOMLoader is the
> more
> > 
> > generic of the 3 interfaces.  Anyway, knowing that, you can create
> your
> > own 
> > DOMWriter implementation that doesn't use XMLC's DOM formatter.  Oh,
> and
> > I 
> > forgot, there still is a dependency on XMLC via the 
> > XMLCDeferredParsingDOMFactory instance created by default in the 
> > DefaultDOMLoader.  Hmm....  Those should really be separated more. 
> > Maybe 
> > we should add another getGlobalInstance() that takes a DOMFactory as
> a
> > 
> > parameter and have the default dom factory loaded up via reflection.
> 
> > That 
> > way, DefaultDOMLoader would be much more generic.  Anyway...
> > 
> > 
> > Here are some ways to use the JivanDOMFactory....
> > 
> > First do...
> > DefaultDOMLoader loader = DefaultDOMLoader.getGlobalInstance();
> > 
> > Then, either use the object repository assember as shown by Thelmo
> below
> > 
> > (except change XMLCDeferredParsingDOMFactory to JivanDOMFactory) or
> use
> > the 
> > following...
> > 
> > 
> > JivanDOMFactory jfactory = new JivanDOMFactory();
> > jfactory.setServletContext(getServletContext());
> > loader.setDefaultDOMFactory(jfactory);
> > 
> > //note that you can also choose to set the default dom factory to
> > something 
> > else and use Jivan for a specific fully qualified class name (String)
> or
> > 
> > file path such as....
> > String docPath = "/WEB-INF/mydocs/myfile.html";
> > loader.registerDOMFactory(jfactory, docPath);
> > 
> > 
> > Then do....
> > 
> > Document doc = loader.getDOM(docPath);
> > 
> > 
> > Of course, you can skip the DOMLoader as you did before, but at that
> > point, 
> > you might as well just load things as described here...
> > http://www.jivan.org/parser/samples.html
> > 
> > You can also look at how JivanDOMFactory is implemented to for an
> > example 
> > of how to use it directly.
> > 
> > Hope that clears things up a bit.
> > 
> > Jake
> > 
> > At 01:18 PM 11/18/2003 -0500, you wrote:
> > >Thanks, when I try this without the xmlc.jar file, it complains
> that
> > the 
> > >class
> > >
> > >org/enhydra/xml/io/DOMFormatter
> > >
> > >is not found. Is the xmlc.jar files still required?
> > >
> > >david
> > >
> > >Thelmo Loisio wrote:
> > >>
> > >>On Tue, 2003-11-18 at 17:19, David R Robison wrote:
> > >>
> > >>>
> > >>>Do you have an example of what to set in the object-repository to
> use
> > jivan?
> > >>>David
> > >>>
> > >>
> > >>
> > >> >From the contrib package here it is snippet from
> > >>object-repository.xml...
> > >>
> > >><object name="$df"
> >
> >>class="org.enhydra.barracuda.core.util.dom.XMLCDeferredParsingDOMFactory">
> > >>         <!-- set the servlet context so that the dom factory can
> > read
> > >>web.xml context params -->
> > >>     <method name="setServletContext" arg="$sc"/>
> > >>   </object>
> > >>
> > >>   <object
> > class="org.enhydra.barracuda.core.util.dom.DefaultDOMLoader">
> > >>     <method name="getGlobalInstance" return="$dl"/>
> > >>   </object>
> > >>
> > >>... and from java within an handleViewEvent method...
> > >>
> > >>Document page =
> > >>DefaultDOMLoader.getGlobalInstance().getDOM(WaitHTML.class,
> > >>context.getViewCapabilities().getClientLocale());
> > >>
> > >>
> > >>
> > >
> > >
> > >--
> > >
> > >David R Robison
> > >Open Roads Consulting, Inc.
> > >708 S. Battlefield Blvd., Chesapeake, VA 23322
> > >phone: (757) 546-3401
> > >e-mail: 
> >
> ><mailto:[email protected]>[email protected]
> > >web: <http://openroadsconsulting.com>http://openroadsconsulting.com
> > 
> > _______________________________________________
> > Barracuda mailing list
> > [email protected]
> > http://barracudamvc.org/lists/listinfo/barracuda
> > 
> _______________________________________________
> Barracuda mailing list
> [email protected]
> http://barracudamvc.org/lists/listinfo/barracuda
>