Referencing parameters in Cloudera Edge Management

To configure an eligible property to reference a parameter, use the # symbol as the start, with the name of the parameter enclosed in curly braces:

#{Parameter.Name}

This can be escaped using an additional # character at the beginning. To illustrate this, assume that the parameter abc has a value of xxx and parameter def has a value of yyy. Then, the following user-defined property values will evaluate to these effective values:

User-Entered Literal Property Value	Effective Property Value	Explanation
#{abc}	xxx	Simple substitution
#{abc}/data	xxx/data	Simple substitution with additional literal data
#{abc}/#{def}	xxx/yyy	Multiple substitution with additional literal data
#{abc	#{abc	No { } for parameter replacement
#abc	#abc	No { } for parameter replacement
##{abc}	#{abc}	Escaped # for literal interpretation
###{abc}	#xxx	Escaped # for literal interpretation, followed by simple substitution
####{abc}	##{abc}	Escaped # for literal interpretation, twice
#####{abc}	##xxx	Escaped # for literal interpretation, twice, followed by simple substitution
#{abc/data}	Exception thrown on property set operation	/ not a valid parameter name character

When referencing a parameter from within expression language, the parameter reference is evaluated first. As an example, to replace xxx with zzz for the abc parameter:

${ #{abc}:replace('xxx', 'zzz') }