99 lines
3.4 KiB
Python
99 lines
3.4 KiB
Python
# Copyright (c) 2014 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import six
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import sys
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import weakref
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from murano.dsl import exceptions
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from murano.dsl import type_scheme
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class PropertyUsages(object):
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In = 'In'
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Out = 'Out'
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InOut = 'InOut'
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Runtime = 'Runtime'
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Const = 'Const'
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Config = 'Config'
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All = set([In, Out, InOut, Runtime, Const, Config])
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Writable = set([Out, InOut, Runtime])
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class Spec(object):
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def __init__(self, declaration, container_class):
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self._container_class = weakref.ref(container_class)
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self._contract = type_scheme.TypeScheme(declaration['Contract'])
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self._usage = declaration.get('Usage') or 'In'
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self._default = declaration.get('Default')
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self._has_default = 'Default' in declaration
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if self._usage not in PropertyUsages.All:
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raise exceptions.DslSyntaxError(
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'Unknown type {0}. Must be one of ({1})'.format(
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self._usage, ', '.join(PropertyUsages.All)))
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def validate(self, value, this, owner, default=None):
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if default is None:
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default = self.default
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return self._contract(
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value, this.object_store.executor.create_object_context(
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this.cast(self._container_class())),
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this, owner, default)
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@property
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def default(self):
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return self._default
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@property
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def has_default(self):
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return self._has_default
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@property
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def usage(self):
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return self._usage
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class PropertySpec(Spec):
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def __init__(self, property_name, declaration, container_class):
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super(PropertySpec, self).__init__(declaration, container_class)
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self.property_name = property_name
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self.class_name = container_class.name
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def validate(self, *args, **kwargs):
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try:
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return super(PropertySpec, self).validate(*args, **kwargs)
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except exceptions.ContractViolationException as e:
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msg = u'[{0}.{1}{2}] {3}'.format(
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self.class_name, self.property_name, e.path, six.text_type(e))
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six.reraise(exceptions.ContractViolationException,
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msg, sys.exc_info()[2])
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class ArgumentSpec(Spec):
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def __init__(self, method_name, arg_name, declaration, container_class):
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super(ArgumentSpec, self).__init__(declaration, container_class)
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self.method_name = method_name
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self.arg_name = arg_name
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self.class_name = container_class.name
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def validate(self, *args, **kwargs):
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try:
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return super(ArgumentSpec, self).validate(*args, **kwargs)
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except exceptions.ContractViolationException as e:
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msg = u'[{0}::{1}({2}{3})] {4}'.format(
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self.class_name, self.method_name, self.arg_name,
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e.path, six.text_type(e))
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six.reraise(exceptions.ContractViolationException,
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msg, sys.exc_info()[2])
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