def build_service(self, name):
self.logger.debug("Build service: %s" % name)
service_config = self.service_config[name]
class_full_name = service_config.get("class")
if class_full_name:
module_name, class_name = parse_module_class(class_full_name)
module = self.get_module(module_name)
clazz = getattr(module, class_name)
args = self.build_arguments(service_config.get("arguments", []))
try:
obj = clazz(*args)
except Exception, e:
self.logger.error(
"Error when create service: %s. Class: %s. Arguments: %s" % (name, class_full_name, args)
)
raise e
)
raise e
elif "delegate" in service_config:
delegate_obj_name, delegate_name = service_config.get("delegate")
obj = self.get(delegate_obj_name)
return getattr(obj, delegate_name)
else:
factory = service_config.get("factory")
if not factory:
raise Exception("No class/factory for service: %s. Provided config: %s" % (name, service_config))
factory_class_name, method_name = factory
module_name, class_name = parse_module_class(factory_class_name)
module = self.get_module(module_name)
clazz = getattr(module, class_name)
method = getattr(clazz, method_name)
args = self.build_arguments(service_config.get("arguments", []))
obj = method(*args)
calls = service_config.get("calls", [])
for method_name, method_args in calls:
method_args = self.build_arguments(method_args)
method = getattr(obj, method_name)
method(*method_args)