twisted.internet.endpoints._WrappingFactory

class documentation

class _WrappingFactory(ClientFactory): (source)

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Wrap a factory in order to wrap the protocols it builds.
Method __init__
Method buildProtocol Proxy buildProtocol to our self._wrappedFactory or errback the self._onConnection Deferred if the wrapped factory raises an exception or returns None.
Method clientConnectionFailed Errback the self._onConnection Deferred when the client connection fails.
Method doStart Start notifications are passed straight through to the wrapped factory.
Method doStop Stop notifications are passed straight through to the wrapped factory.
Method startedConnecting A connection attempt was started. Remember the connector which started said attempt, for use later.
Method _canceller The outgoing connection attempt was cancelled. Fail that Deferred with an error.ConnectingCancelledError.
Instance Variable _connector A connector that is managing the current or previous connection attempt.
Instance Variable _onConnection A Deferred that fires when the protocol is connected
Instance Variable _wrappedFactory A provider of IProtocolFactory whose buildProtocol method will be called and whose resulting protocol will be wrapped.

Inherited from ClientFactory:

Method clientConnectionLost Called when an established connection is lost.

Inherited from Factory (via ClientFactory):

Class Method forProtocol Create a factory for the given protocol.
Method logPrefix Describe this factory for log messages.
Method startFactory This will be called before I begin listening on a Port or Connector.
Method stopFactory This will be called before I stop listening on all Ports/Connectors.
Class Variable noisy Undocumented
Class Variable protocol Undocumented
Instance Variable numPorts Undocumented
def __init__(self, wrappedFactory): (source)
Parameters
wrappedFactoryA provider of IProtocolFactory whose buildProtocol method will be called and whose resulting protocol will be wrapped.
def buildProtocol(self, addr): (source)
from twisted.internet.interfaces.IProtocolFactory
overrides twisted.internet.protocol.Factory.buildProtocol
Proxy buildProtocol to our self._wrappedFactory or errback the self._onConnection Deferred if the wrapped factory raises an exception or returns None.
Returns
An instance of _WrappingProtocol or None
def clientConnectionFailed(self, connector, reason): (source)
overrides twisted.internet.protocol.ClientFactory.clientConnectionFailed
Errback the self._onConnection Deferred when the client connection fails.
def doStart(self): (source)
from twisted.internet.interfaces.IProtocolFactory
overrides twisted.internet.protocol.Factory.doStart
Start notifications are passed straight through to the wrapped factory.
def doStop(self): (source)
from twisted.internet.interfaces.IProtocolFactory
overrides twisted.internet.protocol.Factory.doStop
Stop notifications are passed straight through to the wrapped factory.
def startedConnecting(self, connector): (source)
overrides twisted.internet.protocol.ClientFactory.startedConnecting
A connection attempt was started. Remember the connector which started said attempt, for use later.
def _canceller(self, deferred): (source)
The outgoing connection attempt was cancelled. Fail that Deferred with an error.ConnectingCancelledError.
Parameters
deferred:DeferredThe Deferred that was cancelled; should be the same as self._onConnection.
Returns
None
Note
This relies on startedConnecting having been called, so it may seem as though there's a race condition where _connector may not have been set. However, using public APIs, this condition is impossible to catch, because a connection API (connectTCP/SSL/UNIX) is always invoked before a _WrappingFactory's Deferred is returned to connect()'s caller.
_connector = (source)
A connector that is managing the current or previous connection attempt.
_onConnection = (source)
A Deferred that fires when the protocol is connected
_wrappedFactory = (source)
A provider of IProtocolFactory whose buildProtocol method will be called and whose resulting protocol will be wrapped.