def eval(self, data):
"""Evaluate the script and return executable."""
try:
inputs = data.input.copy()
hydrate_input_references(inputs, data.process.input_schema)
hydrate_input_uploads(inputs, data.process.input_schema)
inputs["proc"] = {"data_id": data.id, "data_path": settings.FLOW_EXECUTOR["DATA_PATH"]}
script_template = data.process.run.get("bash", "")
script = render_template(script_template, template.Context(inputs))
except template.TemplateSyntaxError as ex:
data.status = Data.STATUS_ERROR
data.process_error.append("Error in process script: {}".format(ex))
data.save()
return None
return script
def evaluate(self, data):
"""Evaluate the code needed to compute a given Data object."""
try:
inputs = data.input.copy()
hydrate_input_references(inputs, data.process.input_schema)
hydrate_input_uploads(inputs, data.process.input_schema)
inputs['proc'] = {
'data_id': data.id,
'data_dir': settings.FLOW_EXECUTOR['DATA_DIR'],
}
script_template = data.process.run.get('program', '')
# Get the appropriate expression engine. If none is defined, do not evaluate
# any expressions.
expression_engine = data.process.requirements.get('expression-engine', None)
if not expression_engine:
return script_template
return self.get_expression_engine(expression_engine).evaluate_block(script_template, inputs)
except EvaluationError as error:
raise ExecutionError('{}'.format(error))
def eval(self, data):
"""Evaluate the script and return executable."""
try:
inputs = data.input.copy()
hydrate_input_references(inputs, data.process.input_schema)
hydrate_input_uploads(inputs, data.process.input_schema)
inputs['proc'] = {
'data_id': data.id,
'data_dir': settings.FLOW_EXECUTOR['DATA_DIR'],
}
script_template = data.process.run.get('bash', '')
script = render_template(script_template, template.Context(inputs))
except template.TemplateSyntaxError as ex:
data.status = Data.STATUS_ERROR
data.process_error.append('Error in process script: {}'.format(ex))
data.save()
return None
return script
