Weblogic Portal Tech Cafe: March 2011

Error :
java.sql.SQLException: Unexpected exception while enlisting XAConnection java.sql.SQLException: XA error: XAResource.XAER_RMERR start() failed on resource 'TestDataSource': XAER_RMERR : A resource manager error has occured in the transaction branch
weblogic.transaction.internal.ResourceAccessException: Transaction has timed out when making request to XAResource 'TestDataSource'.
    at weblogic.transaction.internal.XAResourceDescriptor.startResourceUse(XAResourceDescriptor.java:666)
    at weblogic.transaction.internal.XAServerResourceInfo.start(XAServerResourceInfo.java:1182)
    at weblogic.transaction.internal.XAServerResourceInfo.xaStart(XAServerResourceInfo.java:1116)
    at weblogic.transaction.internal.XAServerResourceInfo.enlist(XAServerResourceInfo.java:275)

Solution :
The solution was that for the JDBC Connection Pools to set the XASetTransactionTimeout to true and XATransactionTimeout to zero ("When this parameter is set to zero, the XAResource Session Timeout will be set to the global transaction timeout.")

See the below links :

http://jroller.com/chrisru/entry/xaer_nota_the_xid_is
http://forums.oracle.com/forums/thread.jspa?threadID=1083561

Thursday, March 17, 2011

Building Page & Portlet using BEA Weblogic Administation Portal tools

http://www.portlet.dk/portlet-bea-portal-example.html

Quick guide to successfully build & deploy a Portlet

http://www.portlet.dk/portlet-eclipse-weblogic-example.html

Thanks,
Venkat Sarvabatla

Wednesday, March 16, 2011

To start with Oracle SOA here are some of useful links

http://www.google.com/buzz/112599567631012928685/RhT4P1jQ6Ut

Monday, March 14, 2011

404 page not found error

Question :

really need your help here,
I have a simple struts portlet "MNPPortlet" it contains some JSPs as the below hirearchy

MNPPortlet
WebContent
pages
A.jsp
B.jsp

I just want to open B.jsp in a popup window or in an iframe from A.jsp, I have tried the following
1- window.open("B.jsp")
2

but it doesn't seem to work, I always get 404 page not found error, since it generates wrong URLs, any ideas how can i get the right URIs generated ?
P.S. it's working fine as struts application, not portlet

Answer :
In order to run something as a portlet, you need to create all non-external URLs using appropriate Portal tags so that the portal can re-write the URLs as needed. This allows the portal framework to re-write the URLs depending on how the portlet is being run (for example, over WSRP or not).

In this particular case, where you're trying to access another JSP file directly (not running it through the portal framework, as it is inside an IFrame or in a pop-up window), a "resource URL" would be the appropriate way to go. The render tag library's resourceURL tag should fix your issue:

http://download.oracle.com/docs/cd/E13155_01/wlp/docs103/javadocjsp/framework/render/resourceUrl.html