last plc-dependent code moved to PlDriver

[sfa.git] / sfa / generic / __init__.py

diff --git a/sfa/generic/__init__.py b/sfa/generic/__init__.py
index 843cd7b..3c3855d 100644 (file)
--- 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 +58,55 @@ 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)
+        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