X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Fgeneric%2F__init__.py;h=de1a9e141476acfa411d66698152f64edf5c28a3;hb=da768be8e74e4b77796fa6e65a7b6b34112ad6dc;hp=843cd7b049fa7aa15f20444fed65a96b2f5f1631;hpb=e6c8a0a5061bae7e646851b6f265a02cdfb57f22;p=sfa.git diff --git a/sfa/generic/__init__.py b/sfa/generic/__init__.py index 843cd7b0..de1a9e14 100644 --- a/sfa/generic/__init__.py +++ b/sfa/generic/__init__.py @@ -35,7 +35,7 @@ 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) @@ -46,7 +46,7 @@ class Generic: # 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 @@ -58,47 +58,57 @@ class Generic: def make_api (self, *args, **kwargs): # interface is a required arg if not 'interface' in kwargs: - logger.fatal("Generic.make_api: no interface found") + logger.critical("Generic.make_api: no interface found") api = self.api_class()(*args, **kwargs) - interface=kwargs['interface'] - # or simpler, interface=api.interface - manager = self.make_manager(interface) - api.manager = ManagerWrapper(manager,interface) + # 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', '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(message) - logger.fatal("Aborting") + 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) -# former logic was -# basepath = 'sfa.managers' -# qualified = "%s.%s_manager_%s"%(basepath,interface,flavour) -# generic = "%s.%s_manager"%(basepath,interface) -# -# try: -# manager = __import__(qualified, fromlist=[basepath]) -# logger.info ("%s: loaded %s"%(message,qualified)) -# except: -# try: -# manager = __import__ (generic, fromlist=[basepath]) -# if flavour != 'pl' : -# logger.warn ("%s: using generic with flavour!='pl'"%(message)) -# logger.info("%s: loaded %s"%(message,generic)) -# except: -# logger.log_exc("%s: unable to import either %s or %s"%(message,qualified,generic)) -# logger.fatal("Aborted") -# return manager