This article describes the usage of plan.xml to update deploment descriptors on the fly.
In this example we will update the value of invalidation-interval-secs from 90 seconds to 30 seconds using plan.xml.
invalidation-interval-secs
Sets the time, in seconds, that WebLogic Server waits between doing house-cleaning checks for timed-out and invalid sessions, and deleting the old sessions and freeing up memory. Use this element to tune WebLogic Server for best performance on high traffic sites.
The default value is 60 seconds.
Our weblogic.xml looks like this
<?xml version=”1.0″ encoding=”ISO-8859-1″?>
<weblogic-web-app xmlns=”http://www.bea.com/ns/weblogic/90″>
<security-role-assignment>
<role-name>admin</role-name>
<principal-name>weblogic</principal-name>
</security-role-assignment><session-descriptor>
<invalidation-interval-secs>90</invalidation-interval-secs>
</session-descriptor ></weblogic-web-app>
And our plan.xml looks this this
<?xml version=’1.0′ encoding=’UTF-8′?>
<deployment-plan xmlns=”http://www.bea.com/ns/weblogic/90″ xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”http://www.bea.com/ns/weblogic/90 http://www.bea.com/ns/weblogic/90/weblogic-deployment-plan.xsd” global-variables=”false”><application-name>SessionApp</application-name> <!– You need to change this Line and Put your Web Application Name –>
<variable-definition>
<variable>
<name>SessionInvalidationInt</name>
<value>30</value>
</variable>
</variable-definition><module-override>
<module-name>SessionApp</module-name> <!– You need to change this Line and Put your Web Application Name –>
<module-type>war</module-type>
<module-descriptor external=”true”>
<root-element>web-app</root-element>
<uri>WEB-INF/web.xml</uri>
<variable-assignment>
<name>SessionInvalidationInt</name>
<xpath>/web-app/session-descriptor/invalidation-interval-secs</xpath>
</variable-assignment>
</module-descriptor>
</module-override>
<config-root>D:Replications</config-root> <!– You need to change this Line and Put the location of plan.xml file wherever u have pasted it –>
</deployment-plan>
These are the steps that we need to folow to update our application.
References:-
http://download.oracle.com/docs/cd/E11035_01/wls100/webapp/weblogic_xml.html