+# Deal with plugins directory
+if os.path.exists(options.path):
+ sys.path.append(options.path)
+ known_modules += [i[:-3] for i in os.listdir(options.path) if i.endswith(".py") and (i[:-3] not in known_modules)]
+
+modules = []
+
+def GetSlivers(plc, config):
+ '''Run call backs defined in modules'''
+ try:
+ logger.log("Syncing w/ PLC")
+ data = plc.GetSlivers()
+ if (options.verbose): logger.log_slivers(data)
+ getPLCDefaults(data, config)
+ except:
+ logger.log_exc()
+ # XXX So some modules can at least boostrap.
+ logger.log("nm: Can't contact PLC to GetSlivers(). Continuing.")
+ data = {}
+ # Invoke GetSlivers() functions from the callback modules
+ for module in modules:
+ try:
+ callback = getattr(module, 'GetSlivers')
+ callback(plc, data, config)
+ except: logger.log_exc()
+
+
+def getPLCDefaults(data, config):
+ '''
+ Get PLC wide defaults from _default system slice. Adds them to config class.
+ '''
+ for slice in data.get('slivers'):
+ if slice['name'] == config.PLC_SLICE_PREFIX+"_default":
+ attr_dict = {}
+ for attr in slice.get('attributes'): attr_dict[attr['tagname']] = attr['value']
+ if len(attr_dict):
+ logger.verbose("Found default slice overrides.\n %s" % attr_dict)
+ config.OVERRIDES = attr_dict
+ return
+ if 'OVERRIDES' in dir(config): del config.OVERRIDES
+
+