Source code for tendril.validation.schema
#!/usr/bin/env python
# encoding: utf-8
# Copyright (C) 2016-2019 Chintalagiri Shashank
#
# This file is part of tendril.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Validation elements for Schema Declarations
===========================================
"""
from tendril.validation.base import ValidationPolicy
from tendril.validation.base import ValidationError
[docs]class SchemaPolicy(ValidationPolicy):
def __init__(self, context, name, vmax, vmin):
super(SchemaPolicy, self).__init__(context)
self.name = name
self.vmax = vmax
self.vmin = vmin
[docs] def validate(self, name, version):
if name == self.name and self.vmin <= version <= self.vmax:
return True
else:
return False
[docs] def render(self):
return "Supports {0}<={1}<={2}".format(self.vmin, self.name, self.vmax)
[docs]class SchemaNotSupportedError(ValidationError):
msg = "The file specifies a schema which is not supported."
def __init__(self, policy, value):
super(SchemaNotSupportedError, self).__init__(policy)
self._value = value
def __repr__(self):
return "<SchemaNotSupportedError {0} {1}>" \
"".format(self.policy.context, self._value)
[docs] def render(self):
return {
'is_error': self.policy.is_error,
'group': self.msg,
'headline': "Got {0} in {1}".format(
self._value, self.policy.context),
'detail': self.policy.render(),
}