A tiny confluence user-macro to set a page property based on the output of another macro

gistfile1.txt

## Macro title: Add macro output as property
## Macro has a body: Y
## Body processing: Convert macrooutput to page property. Visible in example bobswift's "run" macro as %property_varname%
## Output: Variable
##
## Developed by: Lars Solberg
## Date created: 25/01/2016
## Installed by: Lars Solberg
## @param Name:title=Name|type=string|required=true|desc=Name of property to create

#set ($containerManagerClass=$content.class.forName('com.atlassian.spring.container.ContainerManager'))
#set ($getInstanceMethod=$containerManagerClass.getDeclaredMethod('getInstance',null))
#set ($containerManager=$getInstanceMethod.invoke(null,null))
#set ($containerContext=$containerManager.containerContext)
#set ($contentPropertyManager=$containerContext.getComponent('contentPropertyManager'))

#if ($body) 
$contentPropertyManager.setStringProperty($content, "$paramName", $body.trim())
#else
$contentPropertyManager.setStringProperty($content, "$paramName", "")
#end