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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