def validate_schema(schema):
if isinstance(schema, (dict, elements.Dict)):
if not isinstance(value, dict):
raise exceptions.DSLParsingFormatException(
1, _expected_type_message(value, dict))
for key in value:
if not isinstance(key, text_type):
raise exceptions.DSLParsingFormatException(
1, "Dict keys must be strings but"
" found '{0}' of type '{1}'".format(
key, _py_type_to_user_type(type(key))))
if strict and isinstance(schema, dict):
for key in value:
if key not in schema:
ex = exceptions.DSLParsingFormatException(
1, "'{0}' is not in schema. "
"Valid schema values: {1}".format(
key, list(schema)))
for child_element in element.children():
if child_element.name == key:
ex.element = child_element
break
raise ex
if (isinstance(schema, elements.List)
and not isinstance(value, list)):
raise exceptions.DSLParsingFormatException(
1, _expected_type_message(value, list))
if (isinstance(schema, elements.Leaf)
and not isinstance(value, schema.type)):
raise exceptions.DSLParsingFormatException(
1, _expected_type_message(value, schema.type))
def validate(self, **kwargs):
imports = [i.value for i in self.children()]
imports_set = set()
for _import in imports:
if _import in imports_set:
raise exceptions.DSLParsingFormatException(
2, 'Duplicate imports')
imports_set.add(_import)
def ancestors_iter(self, element):
current_element = element
while True:
predecessors = self._element_tree.predecessors(current_element)
if not predecessors:
return
if len(predecessors) > 1:
raise exceptions.DSLParsingFormatException(
1, 'More than 1 parent found for {0}'.format(element))
current_element = predecessors[0]
yield current_element
def validate(self):
if len(self.children()) < 1:
raise exceptions.DSLParsingFormatException(
1, "At least one member should be specified")
def validate(self):
if self.initial_value < 0:
raise exceptions.DSLParsingFormatException(
1, 'deploy instances must be a non-negative number')
def load_yaml(raw_yaml, error_message, filename=None):
try:
return yaml_loader.load(raw_yaml, filename)
except yaml.parser.ParserError as ex:
raise exceptions.DSLParsingFormatException(
-1, '{0}: Illegal yaml; {1}'.format(error_message, ex))
def _extract_element_requirements(element):
context = element.context
required_args = {}
for required_type, requirements in element.requires.items():
requirements = [
Requirement(r) if isinstance(r, text_type) else r
for r in requirements
]
if not requirements:
# only set required type as a logical dependency
pass
elif required_type == 'inputs':
for input in requirements:
if input.name not in context.inputs and input.required:
raise exceptions.DSLParsingFormatException(
1, "Missing required input '{0}'. "
"Existing inputs: ".format(input.name))
required_args[input.name] = context.inputs.get(input.name)
else:
if required_type == 'self':
required_type = type(element)
if (len(requirements) == 1
and requirements[0].predicate == sibling_predicate):
# Similar to the other siblings predicate check above,
# doing this saves a massive amount of time on larger
# blueprints by avoiding n**2 time complexity.
required_type_elements = [
child for child in element.parent().children()
if isinstance(child, required_type)
]
else:
required_type_elements = (
context.element_type_to_elements.get(
required_type, []))
for requirement in requirements:
result = []
for required_element in required_type_elements:
if requirement.predicate and not requirement.predicate(
element, required_element):
continue
if requirement.parsed:
result.append(required_element.value)
else:
if (requirement.name
not in required_element.provided):
provided = list(required_element.provided)
if requirement.required:
raise exceptions.DSLParsingFormatException(
1, "Required value '{0}' is not "
"provided by '{1}'. Provided values "
"are: {2}".format(
requirement.name,
required_element.name, provided))
else:
continue
result.append(
required_element.provided[requirement.name])
if len(result) != 1 and not requirement.multiple_results:
if requirement.required:
raise exceptions.DSLParsingFormatException(
1, "Expected exactly one result for "
"requirement '{0}' but found {1}".format(
requirement.name,
'none' if not result else result))
elif not result:
result = [None]
else:
raise ValueError('Illegal state')
if not requirement.multiple_results:
result = result[0]
required_args[requirement.name] = result
return required_args
def _validate_element_schema(element, strict):
value = element.initial_value
if element.required and value is None:
raise exceptions.DSLParsingFormatException(
1, "'{0}' key is required but it is currently missing".format(
element.name))
def validate_schema(schema):
if isinstance(schema, (dict, elements.Dict)):
if not isinstance(value, dict):
raise exceptions.DSLParsingFormatException(
1, _expected_type_message(value, dict))
for key in value:
if not isinstance(key, text_type):
raise exceptions.DSLParsingFormatException(
1, "Dict keys must be strings but"
" found '{0}' of type '{1}'".format(
key, _py_type_to_user_type(type(key))))
if strict and isinstance(schema, dict):
for key in value:
if key not in schema:
ex = exceptions.DSLParsingFormatException(
1, "'{0}' is not in schema. "
"Valid schema values: {1}".format(
key, list(schema)))
for child_element in element.children():
if child_element.name == key:
ex.element = child_element
break
raise ex
if (isinstance(schema, elements.List)
and not isinstance(value, list)):
raise exceptions.DSLParsingFormatException(
1, _expected_type_message(value, list))
if (isinstance(schema, elements.Leaf)
and not isinstance(value, schema.type)):
raise exceptions.DSLParsingFormatException(
1, _expected_type_message(value, schema.type))
if value is not None:
if isinstance(element.schema, list):
validated = False
last_error = None
for schema_item in element.schema:
try:
validate_schema(schema_item)
except exceptions.DSLParsingFormatException as e:
last_error = e
else:
validated = True
break
if not validated:
if not last_error:
raise ValueError('Illegal state should have been '
'identified by schema API validation')
else:
raise last_error
else:
validate_schema(element.schema)
def _extract_element_requirements(element):
context = element.context
required_args = {}
for required_type, requirements in element.requires.items():
requirements = [Requirement(r) if isinstance(r, basestring)
else r for r in requirements]
if not requirements:
# only set required type as a logical dependency
pass
elif required_type == 'inputs':
for input in requirements:
if input.name not in context.inputs and input.required:
raise exceptions.DSLParsingFormatException(
1, "Missing required input '{0}'. "
"Existing inputs: "
.format(input.name, context.inputs.keys()))
required_args[input.name] = context.inputs.get(input.name)
else:
if required_type == 'self':
required_type = type(element)
required_type_elements = context.element_type_to_elements.get(
required_type, [])
for requirement in requirements:
result = []
for required_element in required_type_elements:
if requirement.predicate and not requirement.predicate(
element, required_element):
continue
if requirement.parsed:
result.append(required_element.value)
else:
if (requirement.name not in
required_element.provided):
provided = required_element.provided.keys()
if requirement.required:
raise exceptions.DSLParsingFormatException(
1,
"Required value '{0}' is not "
"provided by '{1}'. Provided values "
"are: {2}"
.format(requirement.name,
required_element.name,
provided))
else:
continue
result.append(required_element.provided[
requirement.name])
if len(result) != 1 and not requirement.multiple_results:
if requirement.required:
raise exceptions.DSLParsingFormatException(
1, "Expected exactly one result for "
"requirement '{0}' but found {1}"
.format(requirement.name,
'none' if not result else result))
elif not result:
result = [None]
else:
raise ValueError('Illegal state')
if not requirement.multiple_results:
result = result[0]
required_args[requirement.name] = result
return required_args
