+ # build an API object
+ # insert a manager instance
+ def make_api (self, *args, **kwargs):
+ # interface is a required arg
+ if not 'interface' in kwargs:
+ logger.critical("Generic.make_api: no interface found")
+ api = self.api_class()(*args, **kwargs)
+ # xxx can probably drop support for managers implemented as modules
+ # which makes it a bit awkward
+ manager_class_or_module = self.make_manager(api.interface)
+ driver = self.make_driver (api.config, api.interface)
+ ### arrange stuff together
+ # add a manager wrapper
+ manager_wrap = ManagerWrapper(manager_class_or_module,api.interface,api.config)
+ api.manager=manager_wrap
+ # insert driver in manager
+ logger.debug("Setting manager.driver, manager=%s"%manager_class_or_module)
+ # xxx this should go into the object and not the class !?!
+ manager_class_or_module.driver=driver
+ # add it in api as well for convenience
+ api.driver=driver
+ return api
+
+ def make_manager (self, interface):
+ """
+ interface expected in ['registry', 'aggregate', 'slicemgr', 'component']
+ flavour is e.g. 'pl' or 'max' or whatever
+ """
+ flavour = self.flavour
+ message="Generic.make_manager for interface=%s and flavour=%s"%(interface,flavour)
+
+ classname = "%s_manager_class"%interface
+ try:
+ module_or_class = getattr(self,classname)()
+ logger.debug("%s : %s"%(message,module_or_class))
+ # this gets passed to ManagerWrapper that will call the class constructor
+ # if it's a class, or use the module as is if it's a module
+ # so bottom line is, don't try the constructor here
+ return module_or_class
+ except:
+ logger.log_exc_critical(message)
+
+ # need interface to select the right driver
+ def make_driver (self, config, interface):
+ flavour = self.flavour
+ message="Generic.make_driver for flavour=%s and interface=%s"%(flavour,interface)
+
+ if interface == "component":
+ classname = "component_driver_class"
+ else:
+ classname = "driver_class"
+ try:
+ class_obj = getattr(self,classname)()
+ logger.debug("%s : %s"%(message,class_obj))
+ return class_obj(config)
+ except:
+ logger.log_exc_critical(message)
+
+