def validate(template):
"""
Validate a template dict and aggregate all errors that could occur.
Return a tempplate object or raise a ValidationError
"""
# Task name validation
errors = list()
for task in template.tasks:
try:
TaskRegistry.get(task.name)
except UnknownTaskName:
errors.append(task.name)
if errors:
log.debug("unknown tasks: %s", errors)
raise TemplateError(key=ErrorInfo.UNKNOWN_TASK, details=errors)
# DAG semantic validation
try:
template.validate()
except WorkflowRootTaskError as exc:
log.debug("workflow validation error: %s", exc)
raise TemplateError(key=ErrorInfo.INVALID_GRAPH, message="Workflow validation error: {}".format(exc)) from exc
# Task config validation
errors = list()
tasks = template.as_dict().get("tasks", [])
for task in tasks:
err = validate_task(task, tasks)
if err:
errors.append(err)
if errors:
raise TemplateError(key=ErrorInfo.INVALID_TASK, details=errors)
return template
def validate_task(task, tasks=None):
"""
Validate the jsonschema configuration of a task
"""
name = task["name"]
config = task.get("config", {})
schema = getattr(TaskRegistry.get(name)[0], "SCHEMA", {})
format_checker = getattr(TaskRegistry.get(name)[0], "FORMAT_CHECKER", None)
try:
validate_schema(config, schema, format_checker=format_checker)
except ValidationError as exc:
return TemplateError.format_details(exc, task)
def validate_task(task, tasks=None):
"""
Validate the jsonschema configuration of a task
"""
name = task['name']
config = task.get('config', {})
schema = getattr(TaskRegistry.get(name)[0], 'SCHEMA', {})
format_checker = getattr(TaskRegistry.get(name)[0], 'FORMAT_CHECKER', None)
try:
validate_schema(config, schema, format_checker=format_checker)
except ValidationError as exc:
return TemplateError.format_details(exc, task)
def validate(template):
"""
Validate a template dict and aggregate all errors that could occur.
Return a tempplate object or raise a ValidationError
"""
# Task name validation
errors = list()
for task in template.tasks:
try:
TaskRegistry.get(task.name)
except UnknownTaskName:
errors.append(task.name)
if errors:
log.debug('unknown tasks: %s', errors)
raise TemplateError(key=ErrorInfo.UNKNOWN_TASK, details=errors)
# DAG semantic validation
try:
template.validate()
except WorkflowRootTaskError as exc:
log.debug('workflow validation error: %s', exc)
raise TemplateError(
key=ErrorInfo.INVALID_GRAPH,
message='Workflow validation error: {}'.format(exc)) from exc
# Task config validation
errors = list()
tasks = template.as_dict().get('tasks', [])
for task in tasks:
err = validate_task(task, tasks)
if err:
errors.append(err)
if errors:
raise TemplateError(key=ErrorInfo.INVALID_TASK, details=errors)
return template
