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Date: Wed, 28 Feb 2007 17:04:26 -0500
From: "Mike Kienenberger" <mkienenb@gmail.com>
To: "MyFaces Discussion" <users@myfaces.apache.org>
Subject: Re: sitemesh and jsf
In-Reply-To: <d2cec0350702280142oe45e78dpfd1c8ec9dbc1b426@mail.gmail.com>
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Shawn, it probably makes the most sense for you to add it.

On 2/28/07, Garner Shawn <shawndgarner@gmail.com> wrote:
> Alright I found a solution here:
> http://jira.opensymphony.com/browse/SIM-201
> Can somebody please add this to the MyFaces Wiki under the topic Sitemesh?
>
> Shawn
>
> On 2/27/07, Garner Shawn <shawndgarner@gmail.com> wrote:
> > I did post on the Sitemesh users list.  I haven't heard anything back yet.
> > This list is much more active than the sitemesh list.
> >
> > Shawn
> >
> > On 2/27/07, Simon Kitching <simon.kitching@rhe.co.nz> wrote:
> > >
> > > Well I guess you'll have to look at the source-code for the Sitemesh
> > > PageFilter then, or ask on the Sitemesh list. The problem is clearly
> > > that JSF-specific JSP tags are being executed but not within the scope
> > > of a FacesServlet. That's not a MyFaces problem, so unfortunately you're
> > > not likely to get much further help on this list.
> > >
> > > However if you do get this figured out it would be great if you could
> > > post the solution here (or add a page to the wiki) for anyone who
> > > encounters this in the future.
> > >
> > > Regards,
> > >
> > > Simon
> > >
> > > Garner Shawn wrote:
> > > > I tried this and it didn't work but am unsure why:
> > > >
> > > > "ExternalContext.dispatch to execute the jsp servlet for processing its
> > > > template so maybe it's just as simple as ensuring the decorators file
> > > > for Sitemesh uses ".jsf" urls rather than ".jsp" urls to its template
> > > > files, in order to trigger the FacesServlet rather than just the
> > > > jsp-handler servlet?"
> > > >
> > > > I got close by overriding the sitemesh filter and then doing a
> > > > chain.filter before calling the sitmesh filter.  It rendered the page
> > > > ok (not right) but it rendered the original page being decorated
> > > > twice.  Once at the beginning and then once later where it should have
> > > > been in the page.
> > > >
> > > >
> > > > Shawn
> > > > On 2/27/07, Simon Kitching <simon.kitching@rhe.co.nz> wrote:
> > > >> The project I am currently working on uses Sitemesh with MyFaces, ie the
> > > >> pages being *decorated* are JSF and it works. However the templates
> > > >> themselves will need to be JSP only (not JSF) I believe; that's
> > > >> certainly what we do.
> > > >>
> > > >> In order for a JSP page containing JSF tags to work correctly, the JSF
> > > >> FacesServlet must handle it. The FacesServlet sets up some JSF
> > > >> infrastructure  on entry, then executes the JSP page (using
> > > >> ExternalContext.dispatch). When JSF-specific tags execute the necessary
> > > >> JSF infrastructure is therefore present. However on completion of the
> > > >> servlet that infrastructure is destroyed by the FacesServlet.
> > > >>
> > > >> What the sitemesh *filter* does is initially pass the incoming request
> > > >> through without change so the primary "decorated" page is fetched, then
> > > >> it determines what decorator template to use and processes that
> > > >> *itself*. Sitemesh sets up the environment for its template to be
> > > >> correctly processed as jsp, but is not smart enough to set up the
> > > >> necessary environment for any JSF tags to execute successfully. And as
> > > >> described above the JSF-specific environment was set up on FacesServlet
> > > >> entry, but removed on FacesServlet exit so it is no longer available.
> > > >>
> > > >> We work around that somewhat by defining a custom "proxyInclude" tag
> > > >> which uses commons-httpclient to make requests. This tag can then be
> > > >> embedded into a Sitemesh template to insert JSF-generated data (in
> > > >> particular, a common header including a JsCookMenu menubar).
> > > >>
> > > >> Maybe the Sitemesh PageFilter could be improved to be JSF-aware but we
> > > >> haven't done that. Hmm..presumably the PageFilter does something like
> > > >> ExternalContext.dispatch to execute the jsp servlet for processing its
> > > >> template so maybe it's just as simple as ensuring the decorators file
> > > >> for Sitemesh uses ".jsf" urls rather than ".jsp" urls to its template
> > > >> files, in order to trigger the FacesServlet rather than just the
> > > >> jsp-handler servlet?
> > > >>
> > > >> Regards,
> > > >>
> > > >> Simon
> > > >>
> > > >>
> > > >> Ricardo Tercero Lozano wrote:
> > > >> > As far as I know you cannot use JSF in Sitemesh decorators.
> > > >> >
> > > >> > Ricardo.
> > > >> >
> > > >> >
> > > >> > On 2/26/07, *Garner Shawn* <shawndgarner@gmail.com
> > > >> > <mailto:shawndgarner@gmail.com>> wrote:
> > > >> >
> > > >> >     I'm trying to use sitmesh with JSF and am getting the following
> > > >> >     exception:
> > > >> >     This is my template decorator page and has a f:view page.
> > > >> >     Is there something I have to do with this to initialize the
> > > >> >     FacesContext for the decorators/templates?
> > > >> >
> > > >> >
> > > >> >     javax.faces.FacesException: Faces context not found.
> > > >> getResponseWriter
> > > >> >     will fail. Check if the FacesServlet has been initialized at all in
> > > >> >     your web.xml configuration fileand if you are accessing your
> > > >> jsf-pages
> > > >> >     through the correct mapping. E.g.: if your FacesServlet is
> > > >> mapped to
> > > >> >     *.jsf (with the <servlet-mapping>-element), you need to access your
> > > >> >     pages as 'sample.jsf'. If you tried to access 'sample.jsp',
> > > >> you'd get
> > > >> >     this error-message.
> > > >> >            javax.faces.webapp.UIComponentTag.setupResponseWriter
> > > >> >     (UIComponentTag.java:926)
> > > >> >
> > > >> >
> > > >> javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:313)
> > > >> >
> > > >> >     org.apache.myfaces.taglib.core.ViewTag.doStartTag(ViewTag.java:73)
> > > >> >
> > > >> >     org.apache.jsp.decorators.andreasTemplate_jsp._jspx_meth_f_view_0
> > > >> >     (andreasTemplate_jsp.java:146)
> > > >> >
> > > >> >
> > > >> org.apache.jsp.decorators.andreasTemplate_jsp._jspService(andreasTemplate_jsp.java:122)
> > > >>
> > > >> >
> > > >> >     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
> > > >> >            javax.servlet.http.HttpServlet.service
> > > >> (HttpServlet.java:802)
> > > >> >
> > > >> >
> > > >> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
> > > >>
> > > >> >
> > > >> >
> > > >> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
> > > >> >            org.apache.jasper.servlet.JspServlet.service
> > > >> >     (JspServlet.java:264)
> > > >> >            javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> > > >> >
> > > >> >
> > > >> com.age.j.soft.sitemesh.TemplateFilterImpl.applyDecorator(TemplateFilterImpl.java:49)
> > > >>
> > > >> >            com.opensymphony.module.sitemesh.filter.PageFilter.doFilter
> > > >> >     (PageFilter.java:62)
> > > >> >
> > > >> >
> > > >> org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
> > > >>
> > > >> >
> > > >> >
> > > >>
> > > >>
> > >
> > >
> >
>