def __init__(self, yaml_step, index):
self.index = int(index)
if type(yaml_step) is str:
self.name = str(yaml_step)
self.arguments = Arguments(None)
elif type(yaml_step) is dict and len(yaml_step.keys()) == 1:
self.name = list(yaml_step.keys())[0]
self.arguments = Arguments(list(yaml_step.values())[0])
else:
raise RuntimeError("Invalid YAML in step '{}'".format(yaml_step))
class Step(object):
def __init__(self, yaml_step, index):
self.index = int(index)
if type(yaml_step) is str:
self.name = str(yaml_step)
self.arguments = Arguments(None)
elif type(yaml_step) is dict and len(yaml_step.keys()) == 1:
self.name = list(yaml_step.keys())[0]
self.arguments = Arguments(list(yaml_step.values())[0])
else:
raise RuntimeError("Invalid YAML in step '{}'".format(yaml_step))
def __str__(self):
return self.name
def underscore_case_name(self):
return utils.to_underscore_style(self.name)
def as_yaml(self):
if self.arguments.is_none:
return yaml.dump([self.name], default_flow_style=False).rstrip()
else:
return yaml.dump([{self.name: self.arguments.to_dict(), }], default_flow_style=False).rstrip()
def to_dict(self):
return {
'index': self.index,
'name': self.name,
'arguments': self.arguments.to_dict(),
'yaml': self.as_yaml(),
}
def run(self, engine):
if hasattr(engine, self.underscore_case_name()):
if self.arguments.is_none:
getattr(engine, self.underscore_case_name())()
elif self.arguments.single_argument:
getattr(engine, self.underscore_case_name())(self.arguments.argument)
else:
getattr(engine, self.underscore_case_name())(**self.arguments.pythonized_kwargs())
else:
raise StepNotFound("Step with name '{}' not found in execution engine.".format(self.underscore_case_name()))