147 lines
5.2 KiB
Python
147 lines
5.2 KiB
Python
# Copyright 2016 - IBM Corp.
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# Copyright 2016 Catalyst IT Limited
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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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from pecan import rest
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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.v2 import resources
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from mistral.api.controllers.v2 import types
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from mistral import context as auth_ctx
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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 triggers
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from mistral.utils import rest_utils
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LOG = logging.getLogger(__name__)
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UPDATE_NOT_ALLOWED = ['exchange', 'topic', 'event']
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CREATE_MANDATORY = set(['exchange', 'topic', 'event', 'workflow_id'])
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class EventTriggersController(rest.RestController):
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@rest_utils.wrap_wsme_controller_exception
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@wsme_pecan.wsexpose(resources.EventTrigger, types.uuid)
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def get(self, id):
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"""Returns the specified event_trigger."""
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acl.enforce('event_trigger:get', auth_ctx.ctx())
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LOG.info('Fetch event trigger [id=%s]', id)
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db_model = db_api.get_event_trigger(id)
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return resources.EventTrigger.from_db_model(db_model)
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@rest_utils.wrap_wsme_controller_exception
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@wsme_pecan.wsexpose(resources.EventTrigger, body=resources.EventTrigger,
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status_code=201)
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def post(self, event_trigger):
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"""Creates a new event trigger."""
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acl.enforce('event_trigger:create', auth_ctx.ctx())
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values = event_trigger.to_dict()
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input_keys = [k for k in values if values[k]]
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if CREATE_MANDATORY - set(input_keys):
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raise exc.EventTriggerException(
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"Params %s must be provided for creating event trigger." %
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CREATE_MANDATORY
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)
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LOG.info('Create event trigger: %s', values)
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db_model = triggers.create_event_trigger(
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values.get('name', ''),
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values.get('exchange'),
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values.get('topic'),
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values.get('event'),
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values.get('workflow_id'),
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workflow_input=values.get('workflow_input'),
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workflow_params=values.get('workflow_params'),
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)
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return resources.EventTrigger.from_db_model(db_model)
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@rest_utils.wrap_wsme_controller_exception
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@wsme_pecan.wsexpose(resources.EventTrigger, types.uuid,
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body=resources.EventTrigger)
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def put(self, id, event_trigger):
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"""Updates an existing event trigger.
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The exchange, topic and event can not be updated. The right way to
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change them is to delete the event trigger first, then create a new
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event trigger with new params.
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"""
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acl.enforce('event_trigger:update', auth_ctx.ctx())
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values = event_trigger.to_dict()
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for field in UPDATE_NOT_ALLOWED:
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if values.get(field, None):
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raise exc.EventTriggerException(
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"Can not update fields %s of event trigger." %
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UPDATE_NOT_ALLOWED
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)
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LOG.info('Update event trigger: [id=%s, values=%s]', id, values)
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with db_api.transaction():
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db_api.ensure_event_trigger_exists(id)
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db_model = triggers.update_event_trigger(id, values)
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return resources.EventTrigger.from_db_model(db_model)
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@rest_utils.wrap_wsme_controller_exception
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@wsme_pecan.wsexpose(None, types.uuid, status_code=204)
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def delete(self, id):
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"""Delete event trigger."""
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acl.enforce('event_trigger:delete', auth_ctx.ctx())
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LOG.info("Delete event trigger [id=%s]", id)
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with db_api.transaction():
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event_trigger = db_api.get_event_trigger(id)
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triggers.delete_event_trigger(event_trigger.to_dict())
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@rest_utils.wrap_wsme_controller_exception
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@wsme_pecan.wsexpose(resources.EventTriggers, types.uuid, int,
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types.uniquelist, types.list, types.uniquelist,
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types.jsontype)
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def get_all(self, marker=None, limit=None, sort_keys='created_at',
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sort_dirs='asc', fields='', **filters):
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"""Return all event triggers."""
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acl.enforce('event_trigger:list', auth_ctx.ctx())
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LOG.info("Fetch event triggers. marker=%s, limit=%s, sort_keys=%s, "
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"sort_dirs=%s, fields=%s, filters=%s", marker, limit,
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sort_keys, sort_dirs, fields, filters)
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return rest_utils.get_all(
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resources.EventTriggers,
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resources.EventTrigger,
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db_api.get_event_triggers,
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db_api.get_event_trigger,
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resource_function=None,
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marker=marker,
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limit=limit,
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sort_keys=sort_keys,
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sort_dirs=sort_dirs,
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fields=fields,
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**filters
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)
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