Hands-On Software Engineering with Python

Common functionality

The existing DaemonMessage class would need to be altered or overridden to accept different operations at the Orchestrator, Worker, and Dispatcher levels, creating new namedtuple constants that are applicable for each. Initially, the Worker node would only be concerned with accepting calls to its factors_of method, and its allowed operations would reflect this:

WORKER_OPERATIONS = namedtuple(
    'WORKER_OPERATIONS', ['factors_of',]
)(
    factors_of='factors_of',
)

The corresponding change to the setter method for the operation property could use the appropriate namedtuple constant to control accepted values (for example, replacing _OPERATIONS with WORKER_OPERATIONS, in some fashion, for a Worker node's implementation):

 def ...