X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fprojects%2Fbackupninja.git;a=blobdiff_plain;f=src%2Flib%2Fbackupninja%2Fhandlers%2F__init__.py;h=22f9589ee5c97636df2d0817236096c9f2d0aa54;hp=f6559f9b692294b401244f7dc65eb47c203a8779;hb=HEAD;hpb=101bff5ef5fec6382ab572a286c4e79d0312c6cd diff --git a/src/lib/backupninja/handlers/__init__.py b/src/lib/backupninja/handlers/__init__.py index f6559f9..22f9589 100644 --- a/src/lib/backupninja/handlers/__init__.py +++ b/src/lib/backupninja/handlers/__init__.py @@ -24,6 +24,20 @@ import logging as log from backupninja import config +def fail_on_exception(f): + """ + This is a decorator meant for methods on the Action class. It + catches any exceptions thrown, sets the failed attribute to True and + rethrows the exception. + """ + def inner(self, *args, **kwargs): + try: + f(self, *args, **kwargs) + except: + self.failed = True + raise + return inner + class Action(object): """ Subclasses of Action represent handlers for various action types. @@ -33,11 +47,18 @@ class Action(object): which is a combination of a action type and a specific action configuration). """ - def __init__(self): + def __init__(self, logger): # Subclasses should overwrite this with their default config # See backupninja.config.load_config for the structure of this # value. self.default_config = {} + # Assume we'll run succesfully. If anything fails in the + # meanwhile, set this to True. + self.failed = False + # A logger object for this action. In the future, this might + # become a specific logger, that includes the action name and + # type. + self.log = logger def run(self, **kwargs): """ @@ -86,10 +107,11 @@ class Action(object): except ConfigParser.NoOptionError: raise config.ConfigError("Option '%s' in section '%s' is mandatory, please configure it" % (option, section)) -def create_action(ty): +def create_action(ty, **kwargs): """ Create a new (subclass of) Action object for an action with the - given type. + given type. Any extra keyword arguments are passed to the + constructor. If the handler class for this type cannot be loaded, an exception is thrown. @@ -116,7 +138,7 @@ def create_action(ty): % (module.__file__)) # Call the "handler" function to create the actual action - action = module.handler() + action = module.handler(**kwargs) # Check if the handler returned is really a subclass of Action if not isinstance(action, Action):