X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Fgeneric%2F__init__.py;h=99d15bc13840f69c3afc8bbf60aab092f4fbe8b3;hb=3e20cc0cfaac3d5168b269d866a5778fdd4f226e;hp=a4e7bdf99984fbf168284dc66d8a80536382ebce;hpb=431a6bf78c6232a44b178e2092451e733a71bba3;p=sfa.git diff --git a/sfa/generic/__init__.py b/sfa/generic/__init__.py index a4e7bdf9..99d15bc1 100644 --- a/sfa/generic/__init__.py +++ b/sfa/generic/__init__.py @@ -35,18 +35,22 @@ class Generic: #mixed = flavour.capitalize() module_path="sfa.generic.%s"%flavour classname="%s"%flavour - logger.info("Generic.the_flavour with flavour=%s"%flavour) + logger.debug("Generic.the_flavour with flavour=%s"%flavour) try: module = __import__ (module_path, globals(), locals(), [classname]) return getattr(module, classname)(flavour,config) except: logger.log_exc("Cannot locate generic instance with flavour=%s"%flavour) + # provide default for importer_class + def importer_class (self): + return None + # in the simplest case these can be redefined to the class/module objects to be used # see pl.py for an example # some descendant of SfaApi def api_class (self) : pass - # in practical terms these are modules for now + # the python classes to use to build up the context def registry_class (self) : pass def slicemgr_class (self) : pass def aggregate_class (self) : pass @@ -60,44 +64,54 @@ class Generic: if not 'interface' in kwargs: logger.critical("Generic.make_api: no interface found") api = self.api_class()(*args, **kwargs) - manager = self.make_manager(api.interface) - driver = self.make_driver (api.config) + # 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 = ManagerWrapper(manager,api.interface) - api.manager=manager + manager_wrap = ManagerWrapper(manager_class_or_module,api.interface,api.config) + api.manager=manager_wrap # insert driver in manager - manager.driver=driver + 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', 'slice', 'component'] + 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_class"%interface + classname = "%s_manager_class"%interface try: - module = getattr(self,classname)() - logger.info("%s : %s"%(message,module)) - return module + 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) - def make_driver (self, config): + # need interface to select the right driver + def make_driver (self, config, interface): flavour = self.flavour - message="Generic.make_driver for flavour=%s"%(flavour) + message="Generic.make_driver for flavour=%s and interface=%s"%(flavour,interface) - classname = "driver_class" + if interface == "component": + classname = "component_driver_class" + else: + classname = "driver_class" try: class_obj = getattr(self,classname)() - logger.info("%s : %s"%(message,class_obj)) + logger.debug("%s : %s"%(message,class_obj)) return class_obj(config) except: logger.log_exc_critical(message) -