Re: [C2b2]sub sitemap error?

[Michael McKibben <mm...@ncube.com>]

Ahh, I see now. Thank you for the explaination.

It seems to me that compiled components that get embedded into the sitemap
java file could still support "inheritance" from the parent sitemap. All
that would be required is that at sub sitemap code generation time,
sitemap markup component could "inject" the parent's component code as
if in the xml I had written something like the following in the sub
sitemap xml:

<map:matchers default="wildcard">
	<xi:xinclude "../sitemap.xmap#xmlns(map=http://apache.org/cocoon/sitemap/1.0)xpointer(//map:components/map:matchers)"/>
</map:matchers>

But this is probably more trouble than it's worth, heh? I imagine this
would make sitemap reloading difficult to handle, i.e. if a parent sitemap
changed, then all descendants would have to be regenerated/recompiled as
well.

Regards,

--mike


On Fri, 31 Aug 2001, java guru wrote:

> Hi.,
>   I had same problem earlier..but after little bit of
> "code" reading..this is what i come up with..
>
> Ofcourse, this explanation is purely my understanding
> and it may be true to core...
>
> 1. The "inherited", we are talking about really doesnt
> exist. From the code perspective, the sub sitemaps are
> independent of main sitemap.
>
> 2. If u look at some of the components of c2 (like
> transformers) with perspective of pure objects living
> in the environment pool to be accessed ans requested
> to do some job, then all the sitemaps could use them
> irrespective of the fact that they are defined in THAT
> particular sitemap file or not. Defining them only
> ensures that they WILL be created and made accessible.
>
>
> 3. On the other hand. Some of the components(from
> sitemap file perspective) like matcher is not really
> like the point2. The matcher functionality requires
> code & logic to be embedded into generated sitemap
> java file. Hence these type of "components" need to be
> mentioned so that that the code generation framework
> takes care of it.
>
> This is what my understanding. Correct me if u have
> any points towards this.
>
>
>
>
>
>
>  --- Sergio Carvalho <se...@acm.org> wrote:
> >
> > I also have the same doubt. Why do matchers behave
> > different from other
> > components? For transformers, it is enough to say:
> >  ...
> >  <map:transformers default="xslt" />
> >  ...
> > But for matchers, one has to declare:
> >  ...
> >  <map:matchers default="wildcard">
> >   <map:matcher name="wildcard"
> >
> src="org.apache.cocoon.matching.WildcardURIMatcherFactory"/>
> >  </map:matchers
> >  ...
> >
> > Cheers,
> >
> > Sérgio
> > On Fri, 31 Aug 2001 13:05:22 -0600 (Mountain
> > Daylight Time), Michael McKibben
> > wrote:
> > From: Michael McKibben <mm...@ncube.com>
> > --
> >
> > > Hello, I am using Coccon2 beta2 on Tomcat 3.2.2,
> > and I am trying to
> > > understand an error I am seeing in a sub sitemap
> > of mine.
> > >
> > > Basically, in my sub sitemap I have the following
> > line in my sitemap file:
> > > ...
> > > <map:matchers default="wildcard"/>
> > > ...
> > >
> > > It was my understanding that this would use the
> > "inherited" wildcard
> > > matcher defined in the parent sitemap as the
> > default. But when I try to
> > > access my sub site, I get an internal server error
> > explaining that the
> > > component for hint "wildcard" cannot be found.
> > >
> > > Looking at the example sub sitemap that comes with
> > cocoon2 I noticed that
> > > it adds a matcher definition (even though it is
> > already defined in the
> > > parent sitemap).
> > >
> > > ...
> > > <map:matchers default="wildcard">
> > >  <map:matcher name="wildcard"
> >
> src="org.apache.cocoon.matching.WildcardURIMatcherFactory"/>
> > > </map:matchers>
> > > ...
> > >
> > > Now, I can add the line in my sub sitemap similar
> > to the example sub
> > > sitemap and make it work. My question is WHY? Is
> > this a bug? It feels
> > > awkward that all the other components inherit from
> > the parent sitemap
> > > except for matchers! But maybe there is a good
> > reason for this. Any ideas?
> > >
> > > Thanks,
> > >
> > > --mike
> > >
> > > P.S. Here is the verbatim exception info I am
> > seeing:
> > > ---
> > > type internal-server-error
> > >
> > > message UnnamedSelector: ComponentSelector could
> > not find the component
> > > for hint: wildcard
> > >
> > > description
> >
> org.apache.avalon.framework.component.ComponentException:
> > > UnnamedSelector: ComponentSelector could not find
> > the component for hint:
> > > wildcard
> > >
> > > sender org.apache.cocoon.servlet.CocoonServlet
> > >
> > > source Cocoon servlet
> > >
> > > request-uri
> > >
> > > /cocoon/buildManager/
> > >
> > > exception
> > >
> > >
> >
> org.apache.avalon.framework.component.ComponentException:
> > UnnamedSelector:
> > > ComponentSelector could not find the component for
> > hint: wildcard
> > >
> > > path-info
> > >
> > > buildManager/
> > >
> > > stacktrace
> > >
> > >
> >
> org.apache.avalon.framework.component.ComponentException:
> > UnnamedSelector:
> > > ComponentSelector could not find the component for
> > hint: wildcard
> > > 	at
> > >
> >
> org.apache.avalon.excalibur.component.ExcaliburComponentSelector.select(ExcaliburComponentSelector.java:239)
> > > 	at
> > >
> >
> org.apache.cocoon.sitemap.SitemapComponentSelector.select(SitemapComponentSelector.java:49)
> > > 	at
> > >
> >
> org.apache.cocoon.sitemap.SitemapComponentSelector.select(SitemapComponentSelector.java:52)
> > > 	at
> > >
> >
> org.apache.cocoon.sitemap.SitemapComponentSelector.select(SitemapComponentSelector.java:52)
> > > 	at
> > >
> >
> org.apache.cocoon.www.buildManager.buildManager_xmap.wildcardMatchN2A(buildManager_xmap.java:302)
> > > 	at
> > >
> >
> org.apache.cocoon.www.buildManager.buildManager_xmap.process(buildManager_xmap.java:214)
> > > 	at
> > >
> >
> org.apache.cocoon.www.buildManager.buildManager_xmap.process(buildManager_xmap.java:175)
> > > 	at
> >
> org.apache.cocoon.sitemap.Handler.process(Handler.java:160)
> > > 	at
> >
> org.apache.cocoon.sitemap.Manager.invoke(Manager.java:103)
> > > 	at
> > >
> >
> org.apache.cocoon.www.sitemap_xmap.wildcardMatchN1FF(sitemap_xmap.java:2643)
> > > 	at
> > >
> >
> org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:2141)
> > > 	at
> > >
> >
> org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:2079)
> > > 	at
> >
> org.apache.cocoon.sitemap.Handler.process(Handler.java:160)
> > > 	at
> >
> org.apache.cocoon.sitemap.Manager.invoke(Manager.java:103)
> > > 	at
> > org.apache.cocoon.Cocoon.process(Cocoon.java:423)
> > > 	at
> > >
> >
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:489)
> > > 	at
> >
> javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> > > 	at
> > >
> >
> org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)
> > > 	at
> >
> org.apache.tomcat.core.Handler.service(Handler.java:287)
> > > 	at
> > >
> >
> org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
> > > 	at
> > >
> >
> org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797)
> > > 	at
> > >
> >
> org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
> > > 	at
> > >
> >
> org.apache.tomcat.service.connector.Ajp13ConnectionHandler.processConnection(Ajp13ConnectionHandler.java:160)
> > > 	at
> > >
> >
> org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
> > > 	at
> > >
> >
> org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:501)
> > > 	at java.lang.Thread.run(Thread.java:484)
> > >
> > >
> > >
> >
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> >
> === message truncated ===
>
> =====
> Thanks and have great day
> srini
>
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