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# Copyright 2020 Nokia Software.
#
# 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.
from mistral_lib.actions.providers import base
from mistral_lib.utils import inspect_utils as i_utils
class PythonActionDescriptor(base.ActionDescriptorBase):
def __init__(self, name, action_cls, action_cls_attrs=None, namespace=None,
project_id=None, scope=None):
super(PythonActionDescriptor, self).__init__(
name,
i_utils.get_docstring(action_cls),
i_utils.get_arg_list_as_str(action_cls.__init__),
namespace,
project_id,
scope
)
self._action_cls = action_cls
self._action_cls_attrs = action_cls_attrs
def __repr__(self):
return 'Python action [name=%s, cls=%s]' % (
self.name,
self._action_cls
)
def instantiate(self, params, wf_ctx):
if not self._action_cls_attrs:
# No need to create new dynamic type.
return self._action_cls(**params)
dynamic_cls = type(
self._action_cls.__name__,
(self._action_cls,),
self._action_cls_attrs
)
return dynamic_cls(**params)
@property
def action_class(self):
return self._action_cls
@property
def action_class_name(self):
return "{}.{}".format(
self._action_cls.__module__,
self._action_cls.__name__
)
@property
def action_class_attributes(self):
return self._action_cls_attrs
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