def __init__(self, parameters = None):
""" This is the constructor. The parameter "parameters" specifies the
parameter for the sprcific module. These can be used to setup the
module correctly. This class contains a CConnectionDatabase
instance as the _d_conenctions attribute. Please use it to manage
your conenctions! Else if you don't want to use it or if you can't
please override the is_busy() method also! This method returns
True if there are connections to the specific module. """
CObject.__init__(self)
if None == parameters:
parameters = {}
self._d_module_lock = threading.Lock()
self._d_module_parameters = parameters
self._d_connections = CConnectionDatabase()
self._d_logger = logging.getLogger("PPLT.core")
def __init__(self, parent, child = None):
""" This method gets two parameters the parameter parent
have to be a instance derived from CModule class and specifies the
parent of the connection (the underlaying module). The optional
parameter child specifies the child of the connection. This should
be an instance of a class implementing the IDisposable interface.
This parameter specifies the child of the connection (the
module/symbol/what_ever) laying above the parent). A connection
instance should allway be created in the connect() method of
a module.
@param parent: This is the parent (destination) of the connection.
@type parent: Any instance of a class that inherit from CModule.
@param child: This may be an instance that will be notified by the
connection about new data.
@type child: Any instance iherit from IDisposable."""
CObject.__init__(self)
if not isinstance(parent, CModule):
raise CorruptInterface("Parentmodule have to inherence CModule!")
self._d_parent_module = parent
self._d_autolock = False
self._d_events_enabled = True
self._d_event_status = True
if child != None:
self._d_child_module = weakref.proxy(child)
else:
self._d_child_module = None
self._d_logger = logging.getLogger("PPLT.core")
if(None == child):
self._d_events_enabled = False
elif not isinstance(child, IDisposable):
raise CorruptInterface("Child have to inherence IDisposable!")
def __del__(self):
if self.is_busy():
self._d_logger.warning("Destruction of module %s but is_busy() == True"%_fmtid(self.identifier()))
CObject.__del__(self)
def __del__(self):
if isinstance(self._d_parent_module, CModule):
self._d_parent_module.disconnect(self.identifier())
CObject.__del__(self)
