Hello,

I have "some" difficulty with my groovy/velocity code:
I manage to pass some parameter between my scheduler/groovy script to my 
velocity code of my page but I need to check in my velocity code if my 
parameter exist (or not).
http://maven.xwiki.org/site/docs/xwiki-javadoc-4.1.x/com/xpn/xwiki/api/Context.html#get%28java.lang.String%29

By exemple, this code doesn't work:
{{velocity}}
#if ( $xcontext.get("DoCleanup")!=$null)
  "DoCleanup" parameter doesn't exist
#else
  DoCleanup parameter from groovy code is $xcontext.get("DoCleanup")
#end
{{/velocity}}

http://maven.xwiki.org/site/docs/xwiki-javadoc-4.1.x/com/xpn/xwiki/api/Context.html#get%28java.lang.String%29
 return null if user have PR :-(

In fact, in my velocity code I need to detect who's launch the velocity script: 
groovy code of scheduler or manually launch by the page containing velocity 
code.

Any idea how can I do?
Thxs.

Pascal B.
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