def check_schema(self, filename):
try:
tableschema.validate(self.filepath(filename))
except tableschema.exceptions.ValidationError as e:
errors = "; ".join([repr(e) for e in e.errors])
message = "Schema %s is not a valid TableSchema schema. Errors: %s" % (
filename,
errors,
)
raise exceptions.InvalidSchemaException(self.repo, message)
except:
message = "Schema %s is not a valid TableSchema schema." % (
filename
)
raise exceptions.InvalidSchemaException(self.repo, message)
def check_schema(self, filename):
try:
_ = self.schema_data
except yaml.error.YAMLError as e:
message = "Yaml file not valid. Error: %s" % (
repr(e),
)
raise exceptions.InvalidSchemaException(self.repo, message)
def check_extra_keys(self):
keys = ["title", "description", "homepage", "version"]
for key in [k for k in keys if k not in self.schema_data]:
message = "Key `%s` is a required key and is missing from %s" % (
key,
self.SCHEMA_FILENAME,
)
raise exceptions.InvalidSchemaException(self.repo, message)
def check_schema(self, path, title):
try:
etree.XMLSchema(etree.parse(self.filepath(path)))
except Exception as e:
message = "XSD schema %s at `%s` is not valid. Errors: %s" % (
title,
path,
repr(e),
)
raise exceptions.InvalidSchemaException(self.repo, message)
def check_schema(self, path, title):
try:
with open(self.filepath(path)) as f:
schema_data = json.load(f)
validator = jsonschema.validators.validator_for(schema_data)
validator.check_schema(schema_data)
except Exception as e:
message = "JSON Schema %s at `%s` is not valid. Errors: %s" % (
title,
path,
repr(e),
)
raise exceptions.InvalidSchemaException(self.repo, message)
def validate(self):
super(XsdSchemaValidator, self).validate()
self.check_file_exists("schemas.yml")
try:
with open(self.filepath("schemas.yml"), "r") as f:
config = yaml.safe_load(f)
self.schemas_config = config["schemas"]
self.title = config["title"]
self.description = config["description"]
self.homepage = config["homepage"]
for schema in config["schemas"]:
self.check_schema(schema["path"], schema["title"])
except Exception as e:
message = "`schemas.yml` has not the required format: " + repr(e)
raise exceptions.InvalidSchemaException(self.repo, message)