# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
#
# 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.
import falcon
from oslo_log import log as logging
from oslo_utils import excutils
from deckhand.control import base as api_base
from deckhand.engine.revision_diff import revision_diff
from deckhand import errors
from deckhand import policy
LOG = logging.getLogger(__name__)
[docs]class RevisionDiffingResource(api_base.BaseResource):
"""API resource for realizing revision diffing."""
[docs] @policy.authorize('deckhand:show_revision_diff')
def on_get(self, req, resp, revision_id, comparison_revision_id):
try:
revision_id = int(revision_id)
except ValueError:
raise errors.InvalidInputException(input_var=str(revision_id))
try:
comparison_revision_id = int(comparison_revision_id)
except ValueError:
raise errors.InvalidInputException(
input_var=str(comparison_revision_id))
try:
resp_body = revision_diff(
revision_id, comparison_revision_id)
except errors.RevisionNotFound as e:
with excutils.save_and_reraise_exception():
LOG.exception(e.format_message())
resp.status = falcon.HTTP_200
resp.body = resp_body