fc76b3b1b4
* Single universal ClientManager class was dropped in favor of of individual in-context methods to create OS clients without ClientManager restrictions. * Environment class was renamed to ExecutionSession to avoid common confusion with io.murano.Environment * execution_session_local module was introduced to simplify keep of per-execution session (per-deployment) data. This is similar to thread-locals with the difference that there can be many threads in single session. * All OS-clients related code was migrated to keystone client sessions and API v3 (except for GLARE and Mistral that doesn't support sessions). This increases performance and solves authentication problems that could be caused by token expiration even with trusts enabled. * [DEFAULT]/home_region setting was introduced instead of [murano]/region_for_services to configure what region should be used by the clients by default (where Murano API resides). All client factories respect this setting. Change-Id: If02c7e5d7d39574d0621e0e8dc27d1f501a31984
320 lines
10 KiB
Python
320 lines
10 KiB
Python
# Copyright (c) 2015 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 inspect
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import os.path
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import six
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from yaql.language import expressions as yaql_expressions
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from yaql.language import utils
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from yaql.language import yaqltypes
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from yaql import yaql_interface
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from murano.dsl import constants
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from murano.dsl import dsl_types
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from murano.dsl import helpers
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NO_VALUE = utils.create_marker('NO_VALUE')
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def name(dsl_name):
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def wrapper(cls):
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cls.__murano_name = dsl_name
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return cls
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return wrapper
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class MuranoType(yaqltypes.PythonType):
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def __init__(self, murano_class, nullable=False, version_spec=None):
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self.murano_class = murano_class
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self.version_spec = version_spec
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super(MuranoType, self).__init__(
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(dsl_types.MuranoObject, MuranoObjectInterface), nullable)
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def check(self, value, context, *args, **kwargs):
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if not super(MuranoType, self).check(
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value, context, *args, **kwargs):
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return False
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if isinstance(value, MuranoObjectInterface):
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value = value.object
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if value is None or isinstance(value, yaql_expressions.Expression):
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return True
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murano_class = self.murano_class
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if isinstance(murano_class, six.string_types):
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murano_class_name = murano_class
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else:
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murano_class_name = murano_class.name
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return helpers.is_instance_of(
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value, murano_class_name,
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self.version_spec or helpers.get_type(context))
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def convert(self, value, sender, context, function_spec, engine,
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*args, **kwargs):
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result = super(MuranoType, self).convert(
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value, sender, context, function_spec, engine, *args, **kwargs)
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if isinstance(result, dsl_types.MuranoObject):
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return MuranoObjectInterface(result)
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return result
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class ThisParameterType(yaqltypes.HiddenParameterType, yaqltypes.SmartType):
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def __init__(self):
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super(ThisParameterType, self).__init__(False)
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def convert(self, value, sender, context, function_spec, engine,
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*args, **kwargs):
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this = helpers.get_this(context)
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executor = helpers.get_executor(context)
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return MuranoObjectInterface(this, executor)
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class InterfacesParameterType(yaqltypes.HiddenParameterType,
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yaqltypes.SmartType):
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def __init__(self):
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super(InterfacesParameterType, self).__init__(False)
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def convert(self, value, sender, context, function_spec, engine,
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*args, **kwargs):
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this = helpers.get_this(context)
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return Interfaces(this)
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class MuranoTypeName(yaqltypes.PythonType):
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def __init__(self, nullable=False, context=None):
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self._context = context
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super(MuranoTypeName, self).__init__(
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(dsl_types.MuranoTypeReference,
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six.string_types), nullable)
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def convert(self, value, sender, context, function_spec, engine,
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*args, **kwargs):
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context = self._context or context
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if isinstance(value, yaql_expressions.Expression):
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value = value(utils.NO_VALUE, context, engine)
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value = super(MuranoTypeName, self).convert(
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value, sender, context, function_spec, engine)
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if isinstance(value, six.string_types):
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if function_spec.meta.get(constants.META_MURANO_METHOD):
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context = helpers.get_caller_context(context)
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murano_type = helpers.get_type(context)
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value = helpers.get_class(
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murano_type.namespace_resolver.resolve_name(value),
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context).get_reference()
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return value
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class MuranoObjectInterface(dsl_types.MuranoObjectInterface):
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class DataInterface(object):
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def __init__(self, object_interface):
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object.__setattr__(self, '__object_interface', object_interface)
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def __getattr__(self, item):
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oi = getattr(self, '__object_interface')
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return oi[item]
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def __setattr__(self, key, value):
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oi = getattr(self, '__object_interface')
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oi[key] = value
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class CallInterface(object):
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def __init__(self, mpl_object, executor):
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self.__object = mpl_object
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self.__executor = executor
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def __getattr__(self, item):
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executor = self.__executor or helpers.get_executor()
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def func(*args, **kwargs):
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self._insert_instruction()
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return self.__object.type.invoke(
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item, executor, self.__object, args, kwargs,
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helpers.get_context())
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return func
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@staticmethod
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def _insert_instruction():
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context = helpers.get_context()
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if context:
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frame = inspect.stack()[2]
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location = dsl_types.ExpressionFilePosition(
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os.path.abspath(frame[1]), frame[2],
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-1, frame[2], -1)
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context[constants.CTX_CURRENT_INSTRUCTION] = NativeInstruction(
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frame[4][0].strip(), location)
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def __init__(self, mpl_object, executor=None):
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self.__object = mpl_object
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self.__executor = executor
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@property
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def object(self):
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return self.__object
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@property
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def id(self):
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return self.__object.object_id
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@property
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def owner(self):
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return self.__object.owner
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def find_owner(self, type, optional=False):
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context = helpers.get_context().create_child_context()
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yaql_engine = helpers.get_yaql_engine(context)
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context['$1'] = self.object
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context['$2'] = type
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expr_str = '$1.find($2)'
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if not optional:
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expr_str += '.require()'
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result = yaql_engine(expr_str).evaluate(context=context)
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return None if result is None else MuranoObjectInterface(result)
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@property
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def type(self):
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return self.__object.type
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@property
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def package(self):
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return self.type.package
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def data(self):
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return MuranoObjectInterface.DataInterface(self)
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@property
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def extension(self):
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return self.__object.extension
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def cast(self, murano_class, version_spec=None):
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return MuranoObjectInterface(
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helpers.cast(
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self.__object, murano_class,
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version_spec or helpers.get_type()),
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self.__executor)
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def is_instance_of(self, murano_class, version_spec=None):
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return helpers.is_instance_of(
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self.__object, murano_class,
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version_spec or helpers.get_type())
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def ancestors(self):
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return self.type.ancestors()
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def __getitem__(self, item):
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context = helpers.get_context()
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return to_mutable(
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self.__object.get_property(item, context),
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helpers.get_yaql_engine(context))
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def __setitem__(self, key, value):
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context = helpers.get_context()
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value = helpers.evaluate(value, context)
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self.__object.set_property(key, value, context)
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def __call__(self):
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return MuranoObjectInterface.CallInterface(
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self.object, self.__executor)
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def __repr__(self):
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return '<{0}>'.format(repr(self.object))
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class Interfaces(object):
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def __init__(self, mpl_object):
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self.__object = mpl_object
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def yaql(self, receiver=utils.NO_VALUE):
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return yaql_interface.YaqlInterface(
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helpers.get_context(), helpers.get_yaql_engine(), receiver)
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def this(self):
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return self.methods(self.__object)
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def methods(self, mpl_object):
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if mpl_object is None:
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return None
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return MuranoObjectInterface(mpl_object)
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@property
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def execution_session(self):
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return helpers.get_execution_session()
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@property
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def caller(self):
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caller_context = helpers.get_caller_context()
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if caller_context is None:
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return None
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caller = helpers.get_this(caller_context)
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if caller is None:
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return None
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return MuranoObjectInterface(caller)
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@property
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def attributes(self):
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executor = helpers.get_executor()
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return executor.attribute_store
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@property
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def class_config(self):
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return self.__object.type.package.get_class_config(
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self.__object.type.name)
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@property
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def package_loader(self):
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return helpers.get_package_loader()
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class NativeInstruction(object):
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def __init__(self, instruction, location):
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self.instruction = instruction
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self.source_file_position = location
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def __str__(self):
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return self.instruction
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def to_mutable(obj, yaql_engine=None):
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if yaql_engine is None:
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yaql_engine = helpers.get_yaql_engine()
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def converter(value, limit_func, engine, rec):
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if isinstance(value, dsl_types.MuranoObject):
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return MuranoObjectInterface(value)
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else:
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return utils.convert_output_data(value, limit_func, engine, rec)
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limiter = lambda it: utils.limit_iterable(it, constants.ITERATORS_LIMIT)
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return converter(obj, limiter, yaql_engine, converter)
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class MuranoObjectParameterType(yaqltypes.PythonType):
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def __init__(self, nullable=False, interface=False):
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self.interface = interface
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super(MuranoObjectParameterType, self).__init__(
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(dsl_types.MuranoObject, MuranoObjectInterface), nullable=nullable)
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def convert(self, value, *args, **kwargs):
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result = super(MuranoObjectParameterType, self).convert(
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value, *args, **kwargs)
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if result is None:
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return None
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if self.interface:
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if isinstance(result, MuranoObjectInterface):
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return result
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return MuranoObjectInterface(result)
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else:
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if isinstance(result, dsl_types.MuranoObject):
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return result
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return result.object
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