85 lines
3.5 KiB
Python
85 lines
3.5 KiB
Python
# (c) Copyright 2014 Cisco Systems 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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from oslo_config import cfg
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from tacker.api import extensions
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from tacker.api.v1 import base
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from tacker import manager
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from tacker.plugins.common import constants
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def build_plural_mappings(special_mappings, resource_map):
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"""Create plural to singular mapping for all resources.
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Allows for special mappings to be provided, like policies -> policy.
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Otherwise, will strip off the last character for normal mappings, like
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routers -> router.
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"""
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plural_mappings = {}
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for plural in resource_map:
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singular = special_mappings.get(plural, plural[:-1])
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plural_mappings[plural] = singular
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return plural_mappings
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def build_resource_info(plural_mappings, resource_map, which_service,
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action_map=None,
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translate_name=False, allow_bulk=False):
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"""Build resources for advanced services.
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Takes the resource information, and singular/plural mappings, and creates
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API resource objects for advanced services extensions. Will optionally
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translate underscores to dashes in resource names, register the resource,
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and accept action information for resources.
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:param plural_mappings: mappings between singular and plural forms
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:param resource_map: attribute map for the WSGI resources to create
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:param which_service: The name of the service for which the WSGI resources
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are being created. This name will be used to pass
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the appropriate plugin to the WSGI resource.
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It can be set to None or "CORE"to create WSGI
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resources for the the core plugin
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:param action_map: custom resource actions
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:param translate_name: replaces underscores with dashes
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:param allow_bulk: True if bulk create are allowed
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"""
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resources = []
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if not which_service:
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which_service = constants.CORE
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if action_map is None:
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action_map = {}
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plugin = manager.TackerManager.get_service_plugins()[which_service]
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for collection_name in resource_map:
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resource_name = plural_mappings[collection_name]
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params = resource_map.get(collection_name, {})
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if translate_name:
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collection_name = collection_name.replace('_', '-')
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member_actions = action_map.get(resource_name, {})
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controller = base.create_resource(
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collection_name, resource_name, plugin, params,
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member_actions=member_actions,
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allow_bulk=allow_bulk,
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allow_pagination=cfg.CONF.allow_pagination,
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allow_sorting=cfg.CONF.allow_sorting)
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resource = extensions.ResourceExtension(
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collection_name,
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controller,
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path_prefix=constants.COMMON_PREFIXES[which_service],
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member_actions=member_actions,
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attr_map=params)
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resources.append(resource)
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return resources
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