Re: [xwiki-users] How to check $xcontext.get(xxxx) is empty?

Thxs to all, but I try to explain more clairely :-) From groovy I pass (or not) some parameter at my velocity script and in velocity I simply want to check if my parameter exist or not. For the moment, i manage to writing this dirty code: In scheduler: xcontext.put("source", "SandboxTemplate") xcontext.put("target", "Sandbox") xcontext.put("DoCleanup", "true") xwiki.getDocument("SandboxTemplate.ReinitSandboxMacro").getRenderedContent() In my SandboxTemplate.ReinitSandboxMacro page: ##Script seem to be launch by scheduler then I use Source and Target from groovy script in scheduler #if ($xcontext.get("DoCleanup") == 'true')     #set ($Source = $xcontext.get("source"))     ##set ($Target = $xcontext.get("target")) #else   ##Script is launch manally from this page then I use default value of 'source' and 'target' URL parameter doesn't exist (and/or is null)   #if ($request.get('source') != $null)     #set ($Source = "$request.get('source')")   #else     #set ($Source =  "SandboxTemplate")   #end   #if ($request.get('target') != $null)     #set ($Target = "$request.get('target')")   #else     #set ($Target =  "Sandbox")   #end #end ##Launch the reinit #if ($request.DoCleanup == 'true' || $xcontext.get("DoCleanup") == 'true')  [[Return>>ReinitSandboxMacro||queryString="source=$Source&target=$Target"]]   #if ($request.debug == 'true')     {{info}}**Debug mode activated: no change made.**{{/info}} NB:  - #if ("$!xcontext.get('target')" != "") doesn't work - I can't include my page in scheduler because it is in groovy syntax. - I don't want doing a xwiki macro because the code is to dangerous (delete space) - I will try services.component.getInstance solution ________________________________