Basically what it means is output of one JSP portlet is not available to
other. So each has to include common/header files separately resulting in
duplicate code in final output sent to browser.




On Tue, Apr 26, 2011 at 11:06 AM, anyz <anyz...@gmail.com> wrote:

> It worked exactly same way you described. However what i understood from J2
> working is below:
>
> Say there are two JSP protlets on page. J2 will call two JSP separately ,
> accumulate two outputs into resultant page and send back to browser. Though
> two portlets are part of same RequestContext but both JSP are compiled
> separately without knowing each other.
>
> Thus each JSP have to include common/header JSP files otherwise it is not
> compiled giving varibale not found exceptions that are defined in common
> header jsp.
>
> Conclusion: Common header JSP files have to be included in each JSP portlet
> page. This will produce duplicate code in resultant page at end. Can not
> avoid it.
>
>
>
>
>
> On Mon, Apr 25, 2011 at 4:03 PM, Woonsan Ko <woon_...@yahoo.com> wrote:
>
>>
>> --- On Mon, 4/25/11, anyz <anyz...@gmail.com> wrote:
>>
>> > From: anyz <anyz...@gmail.com>
>> > Subject: Re: JSP include and multiple portlets Problem
>> > To: "Jetspeed Users List" <jetspeed-user@portals.apache.org>
>> > Date: Monday, April 25, 2011, 6:57 AM
>> > Thanks, it is very helpful
>> > configuring portlet speicifc JSP header pages
>> > using init params.
>> >
>> > I also thought of using portlet filter. This portlet filter
>> > will set a
>> > portlet session variable if it finds a portlet with common
>> > headers. And in
>> > common header files we can check this flag variable to
>> > include the code or
>> > not. Howerver once set we need to remvoe it when filter is
>> > called for last
>> > Portlet on PSML page so that next time PSML page is called
>> > it can include
>> > header files.
>> >
>> > I dont' think its possibel to detect last portlet on PSML
>> > page in Portlet
>> > Filter. It is like setting a flag in *PSML Page Level
>> > Scope*.
>>
>> If it is okay with Jetspeed-2 specific API, then you can make use of
>> RequestContext object which is a flyweight object only for the current page
>> request:
>>
>> import org.apache.jetspeed.request.RequestContext;
>>
>> RequestContext requestContext = (RequestContext)
>> portletRequest.getAttribute(RequestContext.REQUEST_PORTALENV);
>>
>> Because requestContext is shared among portal and portlets, you may use
>> #setAttribute() and #getAttribute() and you don't have to remove attributes
>> later in this case. requestContext object will be removed after the request.
>>
>> Woonsan
>>
>> >
>> >
>> >
>> >
>> > On Fri, Apr 22, 2011 at 7:17 PM, Woonsan Ko <woon_...@yahoo.com>
>> > wrote:
>> >
>> > >
>> > > --- On Fri, 4/22/11, anyz <anyz...@gmail.com>
>> > wrote:
>> > >
>> > > > From: anyz <anyz...@gmail.com>
>> > > > Subject: Re: JSP include and multiple portlets
>> > Problem
>> > > > To: "Jetspeed Users List" <jetspeed-user@portals.apache.org>
>> > > > Date: Friday, April 22, 2011, 8:11 AM
>> > > > Thanks Woonsan,
>> > > >
>> > > > 1- First I am using
>> > > >
>> > org.apache.portals.bridges.common.GenericServletPortlet
>> > > > and hence no Java file exists for portlet but
>> > viewPage is
>> > > > set to JSP
>> > > > directly.
>> > >
>> > > You might want to extend GenericServletPortlet to have
>> > another HeaderPage
>> > > init parameter, so you can configure headers JSP page
>> > to be dispatched in
>> > > doHeaders() method. You don't have to create java
>> > class for each portlet.
>> > > Please refer to the example [1].
>> > >
>> > > [1]
>> > >
>> http://svn.apache.org/repos/asf/portals/applications/gems/tags/apa-gems-1.1/src/main/java/org/apache/portals/gems/dojo/AbstractDojoVelocityPortlet.java
>> > >
>> > > >
>> > > > 2- Even if i create the Java file for each
>> > portlet i.e.
>> > > > makeing portlets of
>> > > > Type GenericPortlet instead of
>> > GenericServletPortlet. This
>> > > > will solve the
>> > > > issue duplicate markup elements in header.
>> > However each of
>> > > > my JSP file in
>> > > > turn includes common files say "Header.jsp". This
>> > common
>> > > > file has losts of
>> > > > JSP scriptlet code as well as static css and Js .
>> > Thus
>> > > > static Js and CSS can
>> > > > be moved to doHeaders() but scriplet code in
>> > Header.jsp
>> > > > will still
>> > > > duplicated for all portlets.
>> > >
>> > > I'm not sure, but you could consider moving the common
>> > scriptlet codes into
>> > > a portlet filter if you want to make it sure to be
>> > invoked at lease or only
>> > > once.
>> > >
>> > > HTH,
>> > >
>> > > Woonsan
>> > >
>> > > >
>> > > >
>> > > >
>> > > >
>> > > > On Thu, Apr 21, 2011 at 6:46 PM, Woonsan Ko
>> > <woon_...@yahoo.com>
>> > > > wrote:
>> > > >
>> > > > > Hi,
>> > > > >
>> > > > > I think you can make use of Portlet 2.0 Head
>> > Element
>> > > > Contribution. Also see
>> > > > > [1].
>> > > > >
>> > > > > [1]
>> > > > >
>> > >
>> http://mail-archives.apache.org/mod_mbox/portals-jetspeed-user/201101.mbox/%3c771436.89975...@web112814.mail.gq1.yahoo.com%3E
>> > > > >
>> > > > > Woonsan
>> > > > >
>> > > > > --- On Thu, 4/21/11, anyz <anyz...@gmail.com>
>> > > > wrote:
>> > > > >
>> > > > > > From: anyz <anyz...@gmail.com>
>> > > > > > Subject: JSP include and multiple
>> > portlets
>> > > > Problem
>> > > > > > To: "Jetspeed Users List" <jetspeed-user@portals.apache.org>
>> > > > > > Date: Thursday, April 21, 2011, 3:04
>> > PM
>> > > > >  > I have multiple JSP portlets on
>> > a
>> > > > > > PSML page. Each JSP portlet page uses
>> > > > > > common code by including various common
>> > JSP
>> > > > files.
>> > > > > >
>> > > > > > Thus common JSP files are actually
>> > included
>> > > > multiple times
>> > > > > > in one PSML page
>> > > > > > due to multipel portlets including
>> > these. It
>> > > > creates many
>> > > > > > issues including
>> > > > > > Javascript code that is over written
>> > by
>> > > > portlets.
>> > > > > >
>> > > > > > What should be best approach to include
>> > common
>> > > > jsp files
>> > > > > > only once. May be
>> > > > > > some sort of conditionall inclusion or
>> > J2 has
>> > > > some
>> > > > > > recommended way to do
>> > > > > > this.
>> > > > > >
>> > > > > > Thanks
>> > > > > >
>> > > > >
>> > > > >
>> > > >
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>> > > > >
>> > > > >
>> > > >
>> > >
>> > >
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>> > >
>> >
>>
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