105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
# Copyright 2013 Red Hat, Inc.
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# All Rights Reserved.
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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 jsonpatch
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from oslo_config import cfg
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import pecan
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import wsme
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from magnum.common import exception
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from magnum.common import utils
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from magnum.i18n import _
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from magnum import objects
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CONF = cfg.CONF
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JSONPATCH_EXCEPTIONS = (jsonpatch.JsonPatchException,
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jsonpatch.JsonPointerException,
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KeyError)
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def validate_limit(limit):
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if limit is not None and limit <= 0:
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raise wsme.exc.ClientSideError(_("Limit must be positive"))
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return min(CONF.api.max_limit, limit) or CONF.api.max_limit
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def validate_sort_dir(sort_dir):
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if sort_dir not in ['asc', 'desc']:
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raise wsme.exc.ClientSideError(_("Invalid sort direction: %s. "
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"Acceptable values are "
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"'asc' or 'desc'") % sort_dir)
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return sort_dir
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def apply_jsonpatch(doc, patch):
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for p in patch:
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if p['op'] == 'add' and p['path'].count('/') == 1:
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if p['path'].lstrip('/') not in doc:
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msg = _('Adding a new attribute (%s) to the root of '
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' the resource is not allowed')
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raise wsme.exc.ClientSideError(msg % p['path'])
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return jsonpatch.apply_patch(doc, jsonpatch.JsonPatch(patch))
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def get_rpc_resource(resource, resource_ident):
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"""Get the RPC resource from the uuid or logical name.
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:param resource: the resource type.
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:param resource_ident: the UUID or logical name of the resource.
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:returns: The RPC resource.
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:raises: InvalidUuidOrName if the name or uuid provided is not valid.
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"""
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resource = getattr(objects, resource)
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if utils.is_uuid_like(resource_ident):
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return resource.get_by_uuid(pecan.request.context, resource_ident)
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if utils.allow_logical_names():
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return resource.get_by_name(pecan.request.context, resource_ident)
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raise exception.InvalidUuidOrName(name=resource_ident)
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def get_openstack_resource(manager, resource_ident, resource_type):
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"""Get the openstack resource from the uuid or logical name.
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:param manager: the resource manager class.
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:param resource_ident: the UUID or logical name of the resource.
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:param resource_type: the type of the resource
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:returns: The openstack resource.
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:raises: ResourceNotFound if the openstack resource is not exist.
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Conflict if multi openstack resources have same name.
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"""
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if utils.is_uuid_like(resource_ident):
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resource_data = manager.get(resource_ident)
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else:
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filters = {'name': resource_ident}
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matches = list(manager.list(filters=filters))
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if len(matches) == 0:
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raise exception.ResourceNotFound(name=resource_type,
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id=resource_ident)
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if len(matches) > 1:
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msg = ("Multiple '%s' exist with same name '%s'. "
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"Please use the resource id instead." %
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(resource_type, resource_ident))
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raise exception.Conflict(msg)
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resource_data = matches[0]
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return resource_data
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