'Annotate the wrapped factory\'s log prefix with some text indicating
the PROXY protocol is in use.
@rtype: C{str}'

def logPrefix(self):

    if interfaces.ILoggingContext.providedBy(self.wrappedFactory):
        logPrefix = self.wrappedFactory.logPrefix()
    else:
        logPrefix = self.wrappedFactory.__class__.__name__
    return ('%s    (PROXY)' % (logPrefix,))
