heat/heat/api/openstack/v1/util.py

77 lines
2.5 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# 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 webob import exc
from functools import wraps
from heat.common import identifier
from heat.openstack.common.gettextutils import _
def tenant_local(handler):
'''
Decorator for a handler method that sets the correct tenant_id in the
request context.
'''
@wraps(handler)
def handle_stack_method(controller, req, tenant_id, **kwargs):
req.context.tenant_id = tenant_id
return handler(controller, req, **kwargs)
return handle_stack_method
def identified_stack(handler):
'''
Decorator for a handler method that passes a stack identifier in place of
the various path components.
'''
@tenant_local
@wraps(handler)
def handle_stack_method(controller, req, stack_name, stack_id, **kwargs):
stack_identity = identifier.HeatIdentifier(req.context.tenant_id,
stack_name,
stack_id)
return handler(controller, req, dict(stack_identity), **kwargs)
return handle_stack_method
def make_url(req, identity):
'''Return the URL for the supplied identity dictionary.'''
try:
stack_identity = identifier.HeatIdentifier(**identity)
except ValueError:
err_reason = _('Invalid Stack address')
raise exc.HTTPInternalServerError(err_reason)
return req.relative_url(stack_identity.url_path(), True)
def make_link(req, identity, relationship='self'):
'''Return a link structure for the supplied identity dictionary.'''
return {'href': make_url(req, identity), 'rel': relationship}
def remote_error(ex):
"""The RemoteError mapping work has been moved to heat.api.middleware.fault
which handles error formating now. This function will be deprecated
in the future, so please raise exceptions directly.
"""
# TODO(jianingy): add a deprecated warning here to inform others.
raise ex