User Principal Attribute into groovy

[RJ]

Whats the variable name thats got the user principal from authentication? We don't want to do any attribute resolution, just getting the username/principal from the authentication.

class SSOAttrRelease {
    def Map<String, List<Object>> run(final Object... args) {
        def currentAttributes = args[0]
        def logger = args[1]
        logger.debug("Current attributes received are {}", currentAttributes)
        return[APPUSER:assertion.currentAttributes ]
    }

currentAttributes don't have anything.. may be, because we dont use a resolver.

I cant call this in a groovy script:
assertion.getPrincipal().getName()