def _process_parameters(self):
parameters = []
has_schedule = self._cron() is not None
seen = set()
for var, param in self.flow._get_parameters():
# Throw an exception if the parameter is specified twice.
norm = param.name.lower()
if norm in seen:
raise MetaflowException("Parameter *%s* is specified twice. "
"Note that parameter names are "
"case-insensitive." % param.name)
seen.add(norm)
is_required = param.kwargs.get('required', False)
# Throw an exception if a schedule is set for a flow with required
# parameters with no defaults. We currently don't have any notion
# of data triggers in AWS Event Bridge.
if 'default' not in param.kwargs and is_required and has_schedule:
raise MetaflowException("The parameter *%s* does not have a "
"default and is required. Scheduling "
"such parameters via AWS Event Bridge "
"is not currently supported." %
param.name)
value = deploy_time_eval(param.kwargs.get('default'))
parameters.append(dict(name=param.name, value=value))
return parameters
def _process_parameters(self):
parameters = []
has_schedule = self._cron() is not None
for var, param in self.flow._get_parameters():
valuetype = param.kwargs.get('type', str)
value = deploy_time_eval(param.kwargs.get('default'))
required = param.kwargs.get('required', False)
# Throw an exception if the flow has optional parameters
# with no default value.
if value is None and required is False:
raise MetaflowException("The value of parameter *%s* is "
"ambiguous. It does not have a "
"default and it is not required." %
param.name)
# Throw an exception if a schedule is set for a flow with required
# parameters with no defaults. We currently don't have any notion
# of data triggers in AWS Event Bridge.
if value is None and required and has_schedule:
raise MetaflowException("The parameter *%s* does not have a "
"default and is required. Scheduling "
"such parameters via AWS Event Bridge "
"is not currently supported." %
param.name)
parameters.append(dict(name=param.name, value=value))
return parameters
def _parameters(self):
parameters = []
has_schedule = self._cron() is not None
for _, param in self.flow._get_parameters():
# Throw an exception if a schedule is set for a flow with required
# parameters with no defaults.
is_required = param.kwargs.get('required', False)
if 'default' not in param.kwargs and is_required and has_schedule:
raise MetaflowException(
"The parameter *%s* does not have a "
"default and is required. Scheduling "
"such parameters via Argo CronWorkflow "
"is not currently supported." % param.name)
p = {'name': param.name}
if 'default' in param.kwargs:
v = deploy_time_eval(param.kwargs.get('default'))
p['value'] = json.dumps(v)
parameters.append(p)
return parameters