129 lines
5.3 KiB
Python
129 lines
5.3 KiB
Python
# Copyright 2014 Hewlett-Packard
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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 json
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import falcon
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from oslo.config import cfg
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from monasca_events_api.api import monasca_transforms_api_v2
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from monasca_events_api.common.repositories import exceptions as repository_exceptions
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from monasca_events_api.common import resource_api
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from monasca_events_api.openstack.common import log
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from monasca_events_api.openstack.common import uuidutils
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from monasca_events_api.v2.common.schemas import (exceptions as schemas_exceptions)
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from monasca_events_api.v2.common.schemas import (
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transforms_request_body_schema as schemas_transforms)
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from monasca_events_api.v2.reference import helpers
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LOG = log.getLogger(__name__)
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class Transforms(monasca_transforms_api_v2.TransformsV2API):
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def __init__(self, global_conf):
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super(Transforms, self).__init__(global_conf)
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self._region = cfg.CONF.region
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self._default_authorized_roles = (
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cfg.CONF.security.default_authorized_roles)
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self._transforms_repo = resource_api.init_driver(
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'monasca_events_api.repositories', cfg.CONF.repositories.transforms_driver)
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def _validate_transform(self, transform):
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"""Validates the transform
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:param transform: An event object.
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:raises falcon.HTTPBadRequest
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"""
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try:
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schemas_transforms.validate(transform)
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except schemas_exceptions.ValidationException as ex:
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LOG.debug(ex)
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raise falcon.HTTPBadRequest('Bad request', ex.message)
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def _create_transform(self, id, tenant_id, transform):
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"""Store the transform using the repository.
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:param transform: A transform object.
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:raises: falcon.HTTPServiceUnavailable
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"""
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try:
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name = transform['name']
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description = transform['description']
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specification = transform['specification']
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enabled = transform['enabled']
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self._transforms_repo.create_transforms(id, tenant_id, name,
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description, specification,
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enabled)
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except repository_exceptions.RepositoryException as ex:
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LOG.error(ex)
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raise falcon.HTTPInternalServerError('Service unavailable',
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ex.message)
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def _create_transform_response(self, id, transform):
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name = transform['name']
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description = transform['description']
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specification = transform['specification']
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enabled = transform['enabled']
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response = {'id': id, 'name': name, 'description': description,
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'specification': specification, 'enabled': enabled}
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return json.dumps(response)
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def _list_transforms(self, tenant_id):
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try:
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transforms = self._transforms_repo.list_transforms(tenant_id)
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return json.dumps(transforms)
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except repository_exceptions.RepositoryException as ex:
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LOG.error(ex)
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raise falcon.HTTPInternalServerError('Service unavailable',
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ex.message)
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def _delete_transform(self, tenant_id, transform_id):
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try:
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self._transforms_repo.delete_transform(tenant_id, transform_id)
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except repository_exceptions.DoesNotExistException:
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raise falcon.HTTPNotFound()
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except repository_exceptions.RepositoryException as ex:
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LOG.error(ex)
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raise falcon.HTTPInternalServerError('Service unavailable',
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ex.message)
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@resource_api.Restify('/v2.0/events/transforms', method='post')
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def do_post_transforms(self, req, res):
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helpers.validate_json_content_type(req)
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helpers.validate_authorization(req, self._default_authorized_roles)
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transform = helpers.read_http_resource(req)
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self._validate_transform(transform)
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id = uuidutils.generate_uuid()
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tenant_id = helpers.get_tenant_id(req)
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self._create_transform(id, tenant_id, transform)
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res.body = self._create_transform_response(id, transform)
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res.status = falcon.HTTP_200
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@resource_api.Restify('/v2.0/events/transforms', method='get')
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def do_get_transforms(self, req, res):
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helpers.validate_authorization(req, self._default_authorized_roles)
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tenant_id = helpers.get_tenant_id(req)
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res.body = self._list_transforms(tenant_id)
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res.status = falcon.HTTP_200
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@resource_api.Restify('/v2.0/events/transforms/{transform_id}',
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method='delete')
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def do_delete_transforms(self, req, res, transform_id):
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helpers.validate_authorization(req, self._default_authorized_roles)
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tenant_id = helpers.get_tenant_id(req)
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self._delete_transform(tenant_id, transform_id)
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res.status = falcon.HTTP_204
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