+1 for inclusion.

drew wills

Jen Bourey wrote:
It appears that we'd lost some important changes when we merged in the 2.6 code. We're basically using the changes described in http://www.ja-sig.org/wiki/display/UPC/External+Links+to+Channels+and+tabs, although we've added code to GuestUserPreferencesManager rather than using the servlet mentioned in this article.

Is this something we might be able to commit to the uPortal project? We've found it to be a locally useful feature.

- Jen


On Dec 3, 2007 3:57 PM, Jennifer Bourey <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:

    Hi all,

    We used to be able to successfully call channels via fname from all
    layouts.  We're now finding that after merging in uPortal 2.6RC1
    changes channels can't be successfully instantiated by fname from
    the guest layout if the channel isn't already a part of the guest
    layout.

    Once upon a time, we'd added a local change to make
    UserLayoutManagerFactory.java read as follows:

         public static IUserLayoutManager
    immutableUserLayoutManager(IUserLayoutManager man) throws
    PortalException {
            IUserLayoutManager iulm = new
    ImmutableUserLayoutManagerWrapper(man);
            IUserLayoutManager ulmWrapper = new
    TransientUserLayoutManagerWrapper(iulm);
            return ulmWrapper;
        }

    Now, this wrapping the immutable user layout manager in the
    transient user layout manager causes the whole guest layout to
    become unavailable (as in accessing the portal as the guest user
    results in a "Programming error" message, without even trying to do
    anything fname-related).  I'm not quite sure what's causing the
    problem, but it seems like the layout it's trying to transform is
    null.  I've included the related stack trace below.

    Does anyone have any ideas on why this feature stopped working as of
    2.6, or how we can get it working now?

    - Jen


    DEBUG [http-8080-Processor25] dlm.DistributedLayoutManager.[] Dec/03
    13:10:53 - domRequest: 3
    DEBUG [http-8080-Processor25] dlm.DistributedLayoutManager.[] Dec/03
    13:10:53 - Layout event stream for guest starting.
    DEBUG [http-8080-Processor25] dlm.DistributedLayoutManager.[] Dec/03
    13:10:54 - Layout event stream for guest incurred exception.
    java.util.EmptyStackException
            at org.apache.xml.utils.IntStack.peek (IntStack.java:125)
            at
    org.apache.xml.dtm.ref.sax2dtm.SAX2DTM.endElement(SAX2DTM.java:2032)
            at
    
org.apache.xalan.transformer.TransformerHandlerImpl.endElement(TransformerHandlerImpl.java
    :522)
            at
    
org.jasig.portal.utils.SAX2DuplicatingFilterImpl.endElement(SAX2DuplicatingFilterImpl.java:563)
            at
    org.jasig.portal.utils.SAX2FilterImpl.endElement(SAX2FilterImpl.java:734)
            at
    org.jasig.portal.utils.SAX2FilterImpl.endElement(SAX2FilterImpl.java:734)
            at
    org.jasig.portal.utils.SAX2FilterImpl.endElement(SAX2FilterImpl.java:734)
            at org.jasig.portal.utils.SAX2FilterImpl.endElement
    (SAX2FilterImpl.java:734)
            at
    
org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1101)
            at
    org.apache.xml.serializer.TreeWalker.endNode(TreeWalker.java :458)
            at
    org.apache.xml.serializer.TreeWalker.traverse(TreeWalker.java:149)
            at
    
org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:389)
            at
    
org.jasig.portal.layout.dlm.DistributedLayoutManager.getUserLayout(DistributedLayoutManager.java:370)
            at
    
org.jasig.portal.layout.dlm.DistributedLayoutManager.getUserLayout(DistributedLayoutManager.java
    :335)
            at
    
org.jasig.portal.layout.TransientUserLayoutManagerWrapper.getUserLayout(TransientUserLayoutManagerWrapper.java:101)
            at
    
org.jasig.portal.layout.immutable.ImmutableUserLayoutManagerWrapper.getUserLayout
    (ImmutableUserLayoutManagerWrapper.java:54)
            at
    
org.jasig.portal.layout.TransientUserLayoutManagerWrapper.getUserLayout(TransientUserLayoutManagerWrapper.java:101)
            at org.jasig.portal.UserInstance.renderState
    (UserInstance.java:557)
            at
    org.jasig.portal.GuestUserInstance.writeContent(GuestUserInstance.java:173)
            at
    org.jasig.portal.PortalSessionManager.doGet(PortalSessionManager.java:285)
            at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
            at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
            at
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
    (ApplicationFilterChain.java:269)
            at
    
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
            at
    
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java
    :213)
            at
    
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
            at
    
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
            at
    
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
            at
    
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
            at org.apache.catalina.connector.CoyoteAdapter.service
    (CoyoteAdapter.java:151)
            at
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
            at
    
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection
    (Http11BaseProtocol.java:665)
            at
    
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
            at
    
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java
    :81)
            at
    
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
            at java.lang.Thread.run(Thread.java:613)


    ---------------------------------
    Jennifer Bourey
    Technology and Planning
    Yale University ITS
    203.432.5718


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