Re: Using Jivan in a Barracuda App

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
> 
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