# vim: tabstop=4 shiftwidth=4 softtabstop=4 # Copyright 2013 OpenStack Foundation. # 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. # # @author: Salvatore Orlando, VMware # from quantum.api import extensions from quantum.api.v2 import attributes from quantum.api.v2 import base from quantum import context from quantum.db import servicetype_db from quantum import manager from quantum.openstack.common import log as logging from quantum.plugins.common import constants LOG = logging.getLogger(__name__) RESOURCE_NAME = "service-type" COLLECTION_NAME = "%ss" % RESOURCE_NAME SERVICE_ATTR = 'service_class' PLUGIN_ATTR = 'plugin' DRIVER_ATTR = 'driver' EXT_ALIAS = RESOURCE_NAME # Attribute Map for Service Type Resource RESOURCE_ATTRIBUTE_MAP = { COLLECTION_NAME: { 'id': {'allow_post': False, 'allow_put': False, 'is_visible': True}, 'name': {'allow_post': True, 'allow_put': True, 'validate': {'type:string': None}, 'is_visible': True, 'default': ''}, 'default': {'allow_post': False, 'allow_put': False, 'is_visible': True}, #TODO(salvatore-orlando): Service types should not have ownership 'tenant_id': {'allow_post': True, 'allow_put': False, 'required_by_policy': True, 'is_visible': True}, 'num_instances': {'allow_post': False, 'allow_put': False, 'is_visible': True}, 'service_definitions': {'allow_post': True, 'allow_put': True, 'is_visible': True, 'default': None, 'validate': {'type:service_definitions': None}} } } def set_default_svctype_id(original_id): if not original_id: svctype_mgr = servicetype_db.ServiceTypeManager.get_instance() # Fetch default service type - it must exist res = svctype_mgr.get_service_types(context.get_admin_context(), filters={'default': [True]}) return res[0]['id'] return original_id def _validate_servicetype_ref(data, valid_values=None): """ Verify the service type id exists """ svc_type_id = data svctype_mgr = servicetype_db.ServiceTypeManager.get_instance() try: svctype_mgr.get_service_type(context.get_admin_context(), svc_type_id) except servicetype_db.ServiceTypeNotFound: return _("The service type '%s' does not exist") % svc_type_id def _validate_service_defs(data, valid_values=None): """ Validate the list of service definitions. """ try: if len(data) == 0: return _("No service type definition was provided. At least a " "service type definition must be provided") f_name = _validate_service_defs.__name__ for svc_def in data: try: # Do a copy of the original object so we can easily # pop out stuff from it svc_def_copy = svc_def.copy() try: svc_name = svc_def_copy.pop(SERVICE_ATTR) plugin_name = svc_def_copy.pop(PLUGIN_ATTR) except KeyError: msg = (_("Required attributes missing in service " "definition: %s") % svc_def) LOG.error(_("%(f_name)s: %(msg)s"), locals()) return msg # Validate 'service' attribute if svc_name not in constants.ALLOWED_SERVICES: msg = (_("Service name '%s' unspecified " "or invalid") % svc_name) LOG.error(_("%(f_name)s: %(msg)s"), locals()) return msg # Validate 'plugin' attribute if not plugin_name: msg = (_("Plugin name not specified in " "service definition %s") % svc_def) LOG.error(_("%(f_name)s: %(msg)s"), locals()) return msg # TODO(salvatore-orlando): This code will need to change when # multiple plugins for each adv service will be supported svc_plugin = manager.QuantumManager.get_service_plugins().get( svc_name) if not svc_plugin: msg = _("No plugin for service '%s'") % svc_name LOG.error(_("%(f_name)s: %(msg)s"), locals()) return msg if svc_plugin.get_plugin_name() != plugin_name: msg = _("Plugin name '%s' is not correct ") % plugin_name LOG.error(_("%(f_name)s: %(msg)s"), locals()) return msg # Validate 'driver' attribute (just check it's a string) # FIXME(salvatore-orlando): This should be a list # Note: using get() instead of pop() as pop raises if the # key is not found, which might happen for the driver driver = svc_def_copy.get(DRIVER_ATTR) if driver: msg = attributes._validate_string(driver,) if msg: return msg del svc_def_copy[DRIVER_ATTR] # Anything left - it should be an error if len(svc_def_copy): msg = (_("Unparseable attributes found in " "service definition %s") % svc_def) LOG.error(_("%(f_name)s: %(msg)s"), locals()) return msg except TypeError: LOG.exception(_("Exception while parsing service " "definition:%s"), svc_def) msg = (_("Was expecting a dict for service definition, found " "the following: %s") % svc_def) LOG.error(_("%(f_name)s: %(msg)s"), locals()) return msg except TypeError: return (_("%s: provided data are not iterable") % _validate_service_defs.__name__) attributes.validators['type:service_definitions'] = _validate_service_defs attributes.validators['type:servicetype_ref'] = _validate_servicetype_ref class Servicetype(extensions.ExtensionDescriptor): @classmethod def get_name(cls): return _("Quantum Service Type Management") @classmethod def get_alias(cls): return EXT_ALIAS @classmethod def get_description(cls): return _("API for retrieving and managing service types for " "Quantum advanced services") @classmethod def get_namespace(cls): return "http://docs.openstack.org/ext/quantum/service-type/api/v1.0" @classmethod def get_updated(cls): return "2013-01-20T00:00:00-00:00" @classmethod def get_resources(cls): """ Returns Extended Resource for service type management """ my_plurals = [(key.replace('-', '_'), key[:-1].replace('-', '_')) for key in RESOURCE_ATTRIBUTE_MAP.keys()] my_plurals.append(('service_definitions', 'service_definition')) attributes.PLURALS.update(dict(my_plurals)) attr_map = RESOURCE_ATTRIBUTE_MAP[COLLECTION_NAME] controller = base.create_resource( COLLECTION_NAME, RESOURCE_NAME, servicetype_db.ServiceTypeManager.get_instance(), attr_map) return [extensions.ResourceExtension(COLLECTION_NAME, controller, attr_map=attr_map)]