Re: Re[2]: JSR-168 Comments

[Serge Huber]

Hi David,

At 10:05 AM 7/23/2003 -0700, you wrote:

Yes I am aware of those, but it still doesn't solve the problem of 
dispatching to a Portlet API portlet. The entry point for one of those 
portlets is a class that complies to a certain interface. For a Servlet 
in a different web application we can dispatch by doing something like this :

        ServletContext otherWebAppContext = 
ServletContext.getContext(otherWebAppContextPath);
        RequestDispatcher otherWebAppDispatcher = 
otherWebAppContext.getRequestDispatcher(otherWebAppURI)
        otherWebAppDispatcher.include(request, response);
Well one solution is to use a proxy servlet as part of the container which 
must reside in the portlet application, this servlet is seeded into the 
WAR during deployment.
I've seen one other solution, where there had to be one servlet for each 
portlet, but I prefer the first solution.
With the first approach, the deploy program is specific to the portal 
implementation, but the Portlet Application WAR is still portable.
Well the proxy servlet would work, but it kinda removes the need for the 
Portlet API in a way. If we can integrate with proxy servlets, why need a 
portlet API ?


But there is no equivalent for portlets. How can I call the doView method 
of a certain portlet ? You'd need a way to access the classloader of the 
other context. From what I understand in the implementation that is being 
proposed to the ASF there will be a JAR that integrates with Tomcat 
(meaning it will not be deployed in a context class loader but in 
Tomcat's classloader, providing access down to all sub class loaders) to 
provide access to the portlets, but this is very container specific and 
will have to be modified to run on any other application server.
I haven't seen the solution proposed by the ASF.
Where can I find out about that,?
Well I'm talking about project Pluto. From what I understand it will work 
as a library that will integrate with the servlet container, and the only 
way to do that is to be in the containers class loader. 
(http://nagoya.apache.org/wiki/apachewiki.cgi?PlutoProposal)

Regards,
  Serge Huber.
- -- --- -----=[ shuber2 at jahia dot com ]=---- --- -- -
www.jahia.org : A collaborative source CMS and Portal Server


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