vmware-nsx/vmware_nsx/plugins/nsx/utils.py
Adit Sarfaty f6241f4ef8 TVD: Do not crash in case the project is not found
When the different service plugins filter the list results by the
project id of the current requestor, the code should not raise an
error if one of the objects project was not found.
Instead that object will be skipped, and a message will be logged.

Change-Id: Ia78f059e1334a23cd9cda07a8981d1f74ae2c430
2018-10-31 11:22:49 +00:00

94 lines
3.2 KiB
Python

# Copyright 2014 VMware, Inc.
# All 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.
from oslo_config import cfg
from oslo_log import log
from neutron_lib import context as n_context
from neutron_lib import exceptions
from neutron_lib.plugins import directory
from vmware_nsx.db import db as nsx_db
LOG = log.getLogger(__name__)
def is_tvd_core_plugin():
core_plugin = cfg.CONF.core_plugin
if (core_plugin.endswith('NsxTVDPlugin') or
core_plugin.endswith('vmware_nsxtvd')):
return True
return False
def get_tvd_plugin_type_for_project(project_id, context=None):
"""Get the plugin type used by a project
Raise an exception if not found or the plugin is not in use
"""
if not context:
context = n_context.get_admin_context()
core_plugin = directory.get_plugin()
return core_plugin.get_plugin_type_from_project(context, project_id)
def filter_plugins(cls):
"""
Class decorator to separate the results of each of the given methods
by plugin
"""
def get_project_mapping(context, project_id):
"""Return the plugin associated with this project"""
mapping = nsx_db.get_project_plugin_mapping(
context.session, project_id)
if mapping:
return mapping['plugin']
else:
raise exceptions.ObjectNotFound(id=project_id)
def add_separate_plugin_hook(name):
orig_method = getattr(cls, name, None)
def filter_results_by_plugin(self, context, **kwargs):
"""Run the original get-list method, and filter the results
by the project id of the context
"""
entries = orig_method(self, context, **kwargs)
if not context.project_id or not entries:
return entries
req_p = get_project_mapping(context, context.project_id)
for entry in entries[:]:
if entry.get('tenant_id'):
try:
p = get_project_mapping(context, entry['tenant_id'])
except exceptions.ObjectNotFound:
# This could be a project that was already deleted
LOG.info("Project %s is not associated with any "
"plugin and will be ignored",
entry['tenant_id'])
entries.remove(entry)
else:
if p != req_p:
entries.remove(entry)
return entries
setattr(cls, name, filter_results_by_plugin)
for method in cls.methods_to_separate:
add_separate_plugin_hook(method)
return cls