Example #1
0
    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")
Example #2
0
    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!")