source: geniuswebcore/geniusweb/connection/ConnectionFactory.py@ 74

from abc import ABC, abstractmethod
from typing import TypeVar, Generic

from geniusweb.connection.ConnectionEnd import ConnectionEnd
from geniusweb.references.Reference import Reference


INTYPE = TypeVar('INTYPE')
OUTTYPE = TypeVar('OUTTYPE')

class ConnectionFactory(ABC,  Generic[INTYPE,OUTTYPE]):
        '''
        factory that can turn a {@link Reference} into a connection to that
        reference.
        
        
        @param <INTYPE>  the type of incoming messages. Incoming messages are
                         received through Listener#not. Incoming messages are usually
                         asynchronous.
        @param <OUTTYPE> the type of outgoing messages. Outgoing messages can be sent
                         directly with #send.
        '''
        @abstractmethod
        def connect(self, reference:Reference) -> ConnectionEnd[INTYPE, OUTTYPE]:
                '''
                @param reference the {@link Reference} to a {@link Connectable}
                @return connection to provided reference
                @throws ConnectionError         if the connection can not be made because
                                                of a network or address related problem.
                                                This points to something non-trivially
                                                that may require user intervention to fix
                                                something.
                @throws NoResourcesNowException if the connection can not be made at this
                                                moment because of lack of resources on
                                                the server. This suggest to retry later.
                '''