I've used the RSS package to parse a RSS file, but haven't written any
of my own rules. To parse a RSS file, it goes like this:
/**
* Read and parse RSS file found at a given
* path, save the Channel bean in request scope,
* and forward to "continue".
* @expects path={uri} on command line or as parameter property to
ActionMapping.
* @expects an input page or error forwarding if exception digesting RSS
* @author Ted Husted
* @version $Revision:1.1 $ $Date: 2000/09/05 $
*/
public final class Fetch extends Action {
// ---------------------------------------------------------
Instances Variables
// --------------------------------------------------------- Public
Methods
/**
* Request attribute key for saving Channel bean
*/
public static final String CHANNEL_KEY = "CHANNEL";
/**
* Main process of class. Reads, parses
*/
public ActionForward perform(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
ActionErrors errors = new ActionErrors();
Channel channel = null;
String path = request.getParameter("path");
if (path==null) path = mapping.getParameter();
try {
RSSDigester digester = new RSSDigester();
channel = (Channel) digester.parse(path);
}
catch (Throwable t) {
errors.add(ActionErrors.GLOBAL_ERROR,
new ActionError("rss.access.error"));
servlet.log(t.toString());
}
// -- Handle Errors ---
if (!errors.empty()) {
saveErrors(request, errors);
if (mapping.getInput()!=null)
return (new ActionForward(mapping.getInput()));
// If no input page, use error forwarding
return (mapping.findForward("error"));
}
// -- Save Bean, and Continue ---
request.setAttribute(CHANNEL_KEY,channel);
return (mapping.findForward("continue"));
} // ---- End perform ----
} // ---- End Fetch ----
storck wrote:
>
> Do you have used digister by your own?
>
> -----Ursprungliche Nachricht-----
> Von: Ted Husted [mailto:archive@jab.org]
> Gesendet: Donnerstag, 20. September 2001 14:32
> An: [EMAIL PROTECTED]
> Betreff: Re: Digister
>
> Look for the package.html file in the SOURCE distribution, or in the
> digester package in the 1.0 Struts source distribution.
>
> For an example, look at the RSS package (and, well, Struts).
>
> -- Ted Husted, Husted dot Com, Fairport NY USA.
> -- Custom Software ~ Technical Services.
> -- Tel +1 716 737-3463
> -- http://www.husted.com/about/struts/
>
> storck wrote:
> >
> > HI,
> >
> > I try to use use digister from org.apache.commons.digester by my own but
> > without luck.
> > Does any doc exist to digister or any "How To" ?
> >
> > Thanks!
-- Ted Husted, Husted dot Com, Fairport NY USA.
-- Custom Software ~ Technical Services.
-- Tel +1 716 737-3463
-- http://www.husted.com/about/struts/
