There's no api for setting components in a twistd plugin

[djfroofy]

Currently there's no api for setting the components in a twistd plugin. In .tac files, this is trivial:

application.setComponent(ILogObserver, PythonLoggingObserver().emit)

The only way I know how to do this is inheriting from MultiService:

class PythonLoggingMultiService(service.MultiService):

    def setServiceParent(self, parent):
        super(PythonLoggingMultiService, self).setServiceParent(parent)
        parent.setComponent(ILogObserver, PythonLoggingObserver().emit) 

twistd plugins:  http://twistedmatrix.com/documents/current/core/howto/tap.html

[exarkun]

This is a duplicate of #638.