4 Replies Latest reply on Apr 13, 2006 12:35 PM by anil.saldhana

    Is WSRP transport agnostic?

    anil.saldhana
    anil.saldhana Apr 11, 2006 2:06 PM

      http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3936660

      Based on the above conversation occurring in the WS user forum, I had a doubt as to whether wsrp spec is transport agnostic. This is because the WS messages can be transported over http, smtp, jms etc.

      The reason I raise this is if we have a perspective of wsrp tied into http (with the concept of obtaining the servlet request/response), it may be difficult to adapt wsrp to other protocols (if need be).

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        • 1. Re: Is WSRP transport agnostic?
          claprun
          claprun Apr 11, 2006 2:18 PM (in response to anil.saldhana)

          I would say that WSRP is "theoretically" transport-agnostic. However, as I pointed in the topic linked to in Anil's message, some methods of WSRP are not. Plus, WSRP is used a portal environment most of the time so HTTP is the preferred transport by default. I am not aware of WSRP use cases over other transports...

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          • 2. Re: Is WSRP transport agnostic?
            julien1 Apr 12, 2006 10:01 AM (in response to anil.saldhana)

            my humble opinion is that :

            1/ wsrp is transport agnostic.

            2/ there is a mismatch between specifications : the Servlet specification and the Portlet specification.

            The way to solve it would be to develop or have a tomcat connector that the portal could use to perform a request dispatch in the right servlet container using provided request/response. I believe it exists (I discussed with Remy one time).

            However there is no J2EE / JEE5 portable solution to that today.

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            • 3. Re: Is WSRP transport agnostic?
              julien1 Apr 12, 2006 10:02 AM (in response to anil.saldhana)

              and I add that the current solution we have based on the servlet filter is the most portable we have accross servlet containers.

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              • 4. Re: Is WSRP transport agnostic?
                anil.saldhana
                anil.saldhana Apr 13, 2006 12:35 PM (in response to anil.saldhana)

                Julien writes:

                A blog entry from Subbu (BEA representative on Portlet 2.0 and probably architect of BEA Portal) :

http://www.subbu.org/weblogs/welcome/2006/04/angle_brackets.html

at the end he drops a few lines on the debate wether WS client can be transport agnostic or not. He explains why this is not the case with WSRP :

"For starters, a WSRP producer is a web service that can be used to view/invoke portlets. In the J2EE world, portlets mostly run on top of the servlet container. For a WSRP producer to be able to interact with the servlet runtime, it needs access to servlet request and servlet response. So, most WSRP producer implementations out there use some internal/proprietary APIs to get hodl of these objects from the servlet container."


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