deb-murano/murano/dsl/yaql_functions.py
Stan Lagun aa0e112461 Introduce MuranoPL/1.1 and 1.2
1.1 is the same as 1.0 but packages with format other than
MuranoPL/1.0 (or just 1.0) will be rejected by Murano Kilo.
As a result it will be possible to specify that application
require yaql 1.0 which was introduce in Liberty.

MuranoPL/1.2 differs in that it has yaql legacy mode turned
off and several functions are now cannot be called as
MuranoObject methods. It is recommended to start development
of new applications using 1.2 format

Change-Id: Ie68cc0c37f198c10eeac79ed349f9d9d420e038f
Implements-Blueprint: muranopl-format-version-upgrade
2015-10-14 17:43:24 +03:00

193 lines
6.3 KiB
Python

# Copyright (c) 2014 Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import itertools
import eventlet
from yaql.language import specs
from yaql.language import utils
from yaql.language import yaqltypes
from murano.dsl import constants
from murano.dsl import dsl
from murano.dsl import dsl_types
from murano.dsl import helpers
from murano.dsl import linked_context
@specs.parameter('value', dsl_types.MuranoObject)
def id_(value):
return value.object_id
@specs.parameter('value', dsl_types.MuranoObject)
@specs.parameter('type__', dsl.MuranoTypeName())
@specs.parameter('version_spec', yaqltypes.String(True))
def cast(context, value, type__, version_spec=None):
return helpers.cast(
value, type__.murano_class.name,
version_spec or helpers.get_type(context))
@specs.parameter('__type_name', dsl.MuranoTypeName())
@specs.parameter('__extra', utils.MappingType)
@specs.parameter('__owner', dsl_types.MuranoObject)
@specs.parameter('__object_name', yaqltypes.String(True))
def new(__context, __type_name, __owner=None, __object_name=None, __extra=None,
**parameters):
object_store = helpers.get_object_store(__context)
new_context = __context.create_child_context()
for key, value in parameters.iteritems():
if helpers.is_keyword(key):
new_context[key] = value
return __type_name.murano_class.new(
__owner, object_store, name=__object_name)(new_context, **parameters)
@specs.parameter('type_name', dsl.MuranoTypeName())
@specs.parameter('parameters', utils.MappingType)
@specs.parameter('extra', utils.MappingType)
@specs.parameter('owner', dsl_types.MuranoObject)
@specs.parameter('object_name', yaqltypes.String(True))
@specs.name('new')
def new_from_dict(type_name, context, parameters,
owner=None, object_name=None, extra=None):
return new(context, type_name, owner, object_name, extra,
**helpers.filter_parameters_dict(parameters))
@specs.parameter('sender', dsl_types.MuranoObject)
@specs.parameter('func', yaqltypes.Lambda())
def super_(context, sender, func=None):
cast_type = helpers.get_type(context)
if func is None:
return [sender.cast(type) for type in cast_type.parents(
sender.real_this.type)]
return itertools.imap(func, super_(context, sender))
@specs.parameter('value', dsl_types.MuranoObject)
@specs.parameter('func', yaqltypes.Lambda())
def psuper(context, value, func=None):
if func is None:
return super_(context, value)
return helpers.parallel_select(super_(context, value), func)
@specs.extension_method
def require(value):
if value is None:
raise ValueError('Required value is missing')
return value
@specs.parameter('obj', dsl_types.MuranoObject)
@specs.parameter('murano_class_ref', dsl.MuranoTypeName())
@specs.extension_method
def find(obj, murano_class_ref):
p = obj.owner
while p is not None:
if murano_class_ref.murano_class.is_compatible(p):
return p
p = p.owner
return None
@specs.parameter('seconds', yaqltypes.Number())
def sleep_(seconds):
eventlet.sleep(seconds)
@specs.parameter('object_', dsl_types.MuranoObject)
def type_(object_):
return object_.type.name
@specs.parameter('object_', dsl_types.MuranoObject)
def name(object_):
return object_.name
@specs.parameter('obj', dsl_types.MuranoObject)
@specs.parameter('property_name', yaqltypes.Keyword())
@specs.name('#operator_.')
def obj_attribution(context, obj, property_name):
return obj.get_property(property_name, context)
@specs.parameter('sender', dsl_types.MuranoObject)
@specs.parameter('expr', yaqltypes.Lambda(method=True))
@specs.inject('operator', yaqltypes.Super(with_context=True))
@specs.name('#operator_.')
def op_dot(context, sender, expr, operator):
executor = helpers.get_executor(context)
type_context = executor.context_manager.create_class_context(sender.type)
obj_context = executor.context_manager.create_object_context(sender)
ctx2 = linked_context.link(
linked_context.link(context, type_context),
obj_context)
return operator(ctx2, sender, expr)
@specs.parameter('prefix', yaqltypes.Keyword())
@specs.parameter('name', yaqltypes.Keyword())
@specs.name('#operator_:')
def ns_resolve(context, prefix, name):
murano_type = helpers.get_type(context)
return dsl_types.MuranoClassReference(
helpers.get_class(
murano_type.namespace_resolver.resolve_name(
prefix + ':' + name), context))
@specs.parameter('obj1', dsl_types.MuranoObject, nullable=True)
@specs.parameter('obj2', dsl_types.MuranoObject, nullable=True)
@specs.name('*equal')
def equal(obj1, obj2):
return obj1 is obj2
@specs.parameter('obj1', dsl_types.MuranoObject, nullable=True)
@specs.parameter('obj2', dsl_types.MuranoObject, nullable=True)
@specs.name('*not_equal')
def not_equal(obj1, obj2):
return obj1 is not obj2
def register(context, runtime_version):
context.register_function(cast)
context.register_function(new)
context.register_function(new_from_dict)
context.register_function(id_)
context.register_function(super_)
context.register_function(psuper)
context.register_function(require)
context.register_function(find)
context.register_function(sleep_)
context.register_function(type_)
context.register_function(name)
context.register_function(obj_attribution)
context.register_function(op_dot)
context.register_function(ns_resolve)
context.register_function(equal)
context.register_function(not_equal)
if runtime_version <= constants.RUNTIME_VERSION_1_1:
context2 = context.create_child_context()
for t in ('id', 'cast', 'super', 'psuper', 'type'):
for spec in utils.to_extension_method(t, context):
context2.register_function(spec)
return context2
return context