231 lines
7.9 KiB
Python
231 lines
7.9 KiB
Python
# Copyright 2014 - Mirantis, Inc.
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# Copyright 2015 Huawei Technologies Co., Ltd.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_log import log as logging
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import pecan
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from pecan import hooks
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from pecan import rest
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from wsme import types as wtypes
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import wsmeext.pecan as wsme_pecan
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from mistral.api import access_control as acl
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from mistral.api.controllers import resource
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from mistral.api.controllers.v2 import types
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from mistral.api.controllers.v2 import validation
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from mistral.api.hooks import content_type as ct_hook
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from mistral import context
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from mistral.db.v2 import api as db_api
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from mistral import exceptions as exc
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from mistral.services import actions
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from mistral.utils import rest_utils
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from mistral.workbook import parser as spec_parser
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LOG = logging.getLogger(__name__)
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SCOPE_TYPES = wtypes.Enum(str, 'private', 'public')
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class Action(resource.Resource):
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"""Action resource.
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NOTE: *name* is immutable. Note that name and description get inferred
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from action definition when Mistral service receives a POST request.
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So they can't be changed in another way.
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"""
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id = wtypes.text
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name = wtypes.text
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is_system = bool
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input = wtypes.text
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description = wtypes.text
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tags = [wtypes.text]
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definition = wtypes.text
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scope = SCOPE_TYPES
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created_at = wtypes.text
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updated_at = wtypes.text
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@classmethod
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def sample(cls):
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return cls(id='123e4567-e89b-12d3-a456-426655440000',
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name='flow',
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definition='HERE GOES ACTION DEFINITION IN MISTRAL DSL v2',
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tags=['large', 'expensive'],
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scope='private',
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created_at='1970-01-01T00:00:00.000000',
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updated_at='1970-01-01T00:00:00.000000')
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class Actions(resource.ResourceList):
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"""A collection of Actions."""
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actions = [Action]
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def __init__(self, **kwargs):
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self._type = 'actions'
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super(Actions, self).__init__(**kwargs)
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@classmethod
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def sample(cls):
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actions_sample = cls()
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actions_sample.actions = [Action.sample()]
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actions_sample.next = "http://localhost:8989/v2/actions?" \
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"sort_keys=id,name&" \
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"sort_dirs=asc,desc&limit=10&" \
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"marker=123e4567-e89b-12d3-a456-426655440000"
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return actions_sample
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class ActionsController(rest.RestController, hooks.HookController):
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# TODO(nmakhotkin): Have a discussion with pecan/WSME folks in order
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# to have requests and response of different content types. Then
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# delete ContentTypeHook.
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__hooks__ = [ct_hook.ContentTypeHook("application/json", ['POST', 'PUT'])]
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validate = validation.SpecValidationController(
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spec_parser.get_action_list_spec_from_yaml)
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@rest_utils.wrap_wsme_controller_exception
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@wsme_pecan.wsexpose(Action, wtypes.text)
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def get(self, name):
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"""Return the named action."""
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acl.enforce('actions:get', context.ctx())
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LOG.info("Fetch action [name=%s]" % name)
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db_model = db_api.get_action_definition(name)
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return Action.from_dict(db_model.to_dict())
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@rest_utils.wrap_pecan_controller_exception
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@pecan.expose(content_type="text/plain")
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def put(self):
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"""Update one or more actions.
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NOTE: This text is allowed to have definitions
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of multiple actions. In this case they all will be updated.
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"""
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acl.enforce('actions:update', context.ctx())
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definition = pecan.request.text
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LOG.info("Update action(s) [definition=%s]" % definition)
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scope = pecan.request.GET.get('scope', 'private')
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if scope not in SCOPE_TYPES.values:
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raise exc.InvalidModelException(
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"Scope must be one of the following: %s; actual: "
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"%s" % (SCOPE_TYPES.values, scope)
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)
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db_acts = actions.update_actions(definition, scope=scope)
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models_dicts = [db_act.to_dict() for db_act in db_acts]
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action_list = [Action.from_dict(act) for act in models_dicts]
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return Actions(actions=action_list).to_string()
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@rest_utils.wrap_pecan_controller_exception
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@pecan.expose(content_type="text/plain")
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def post(self):
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"""Create a new action.
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NOTE: This text is allowed to have definitions
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of multiple actions. In this case they all will be created.
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"""
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acl.enforce('actions:create', context.ctx())
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definition = pecan.request.text
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scope = pecan.request.GET.get('scope', 'private')
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pecan.response.status = 201
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if scope not in SCOPE_TYPES.values:
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raise exc.InvalidModelException(
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"Scope must be one of the following: %s; actual: "
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"%s" % (SCOPE_TYPES.values, scope)
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)
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LOG.info("Create action(s) [definition=%s]" % definition)
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db_acts = actions.create_actions(definition, scope=scope)
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models_dicts = [db_act.to_dict() for db_act in db_acts]
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action_list = [Action.from_dict(act) for act in models_dicts]
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return Actions(actions=action_list).to_string()
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@rest_utils.wrap_wsme_controller_exception
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@wsme_pecan.wsexpose(None, wtypes.text, status_code=204)
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def delete(self, name):
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"""Delete the named action."""
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acl.enforce('actions:delete', context.ctx())
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LOG.info("Delete action [name=%s]" % name)
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with db_api.transaction():
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db_model = db_api.get_action_definition(name)
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if db_model.is_system:
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msg = "Attempt to delete a system action: %s" % name
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raise exc.DataAccessException(msg)
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db_api.delete_action_definition(name)
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@wsme_pecan.wsexpose(Actions, types.uuid, int, types.uniquelist,
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types.list)
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def get_all(self, marker=None, limit=None, sort_keys='name',
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sort_dirs='asc'):
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"""Return all actions.
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:param marker: Optional. Pagination marker for large data sets.
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:param limit: Optional. Maximum number of resources to return in a
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single result. Default value is None for backward
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compatibility.
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:param sort_keys: Optional. Columns to sort results by.
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Default: name.
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:param sort_dirs: Optional. Directions to sort corresponding to
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sort_keys, "asc" or "desc" can be choosed.
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Default: asc.
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Where project_id is the same as the requester or
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project_id is different but the scope is public.
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"""
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acl.enforce('actions:list', context.ctx())
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LOG.info("Fetch actions. marker=%s, limit=%s, sort_keys=%s, "
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"sort_dirs=%s", marker, limit, sort_keys, sort_dirs)
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rest_utils.validate_query_params(limit, sort_keys, sort_dirs)
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marker_obj = None
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if marker:
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marker_obj = db_api.get_action_definition_by_id(marker)
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db_action_defs = db_api.get_action_definitions(
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limit=limit,
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marker=marker_obj,
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sort_keys=sort_keys,
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sort_dirs=sort_dirs
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)
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actions_list = [Action.from_dict(db_model.to_dict())
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for db_model in db_action_defs]
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return Actions.convert_with_links(
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actions_list,
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limit,
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pecan.request.host_url,
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sort_keys=','.join(sort_keys),
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sort_dirs=','.join(sort_dirs)
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)
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