leizhang 642827b727 Add new get_resource method for rsd-lib 2.1
Add a get_resource method to return a resource instance from a uri, currently
there is no way for users to get rsd resource from a uri. This is helpful
for cases where users get the path from links and want to access the resource
using given path.

Change-Id: I51d4ead04d829631d37cb3bad8dd8bcf1194db3f
2019-06-03 12:39:23 -07:00

316 lines
10 KiB
Python

# Copyright 2017 Intel, 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 sushy import exceptions
from sushy.resources import base
from rsd_lib import exceptions as rsd_lib_exceptions
from rsd_lib.resources.v2_1.chassis import chassis
from rsd_lib.resources.v2_1.ethernet_switch import ethernet_switch
from rsd_lib.resources.v2_1.event_service import event_service
from rsd_lib.resources.v2_1.fabric import fabric
from rsd_lib.resources.v2_1.manager import manager
from rsd_lib.resources.v2_1.node import node
from rsd_lib.resources.v2_1.registries import message_registry_file
from rsd_lib.resources.v2_1.storage_service import storage_service
from rsd_lib.resources.v2_1.system import system
from rsd_lib.resources.v2_1.task import task_service
from rsd_lib.resources.v2_1 import types
class RSDLibV2_1(base.ResourceBase):
_systems_path = base.Field(["Systems", "@odata.id"], required=True)
"""SystemCollection path"""
_nodes_path = base.Field(["Nodes", "@odata.id"], required=True)
"""NodeCollection path"""
_chassis_path = base.Field(["Chassis", "@odata.id"])
"""ChassisCollection path"""
_storage_service_path = base.Field(["Services", "@odata.id"])
"""StorageServiceCollection path"""
_fabrics_path = base.Field(["Fabrics", "@odata.id"])
"""FabricCollection path"""
_managers_path = base.Field(["Managers", "@odata.id"])
"""ManagerCollection path"""
_ethernet_switches_path = base.Field(["EthernetSwitches", "@odata.id"])
"""EthernetSwitchCollecton path"""
_task_service_path = base.Field(["Tasks", "@odata.id"])
"""Task Service path"""
_registries_path = base.Field(["Registries", "@odata.id"])
"""RegistriesCollection path"""
_event_service_path = base.Field(["EventService", "@odata.id"])
"""Event Service path"""
_redfish_version = base.Field(["RedfishVersion"])
"""Redfish version"""
_rsd_api_version = base.Field(["Oem", "Intel_RackScale", "ApiVersion"])
"""RSD API version"""
def __init__(
self, connector, identity="/redfish/v1/", redfish_version=None
):
"""A class representing a ComposedNode
:param connector: A Connector instance
:param identity: The identity of the Node resource
:param redfish_version: The version of RedFish. Used to construct
the object according to schema of the given version.
"""
super(RSDLibV2_1, self).__init__(connector, identity, redfish_version)
def get_system_collection(self):
"""Get the SystemCollection object
:raises: MissingAttributeError, if the collection attribute is
not found
:returns: a SystemCollection object
"""
return system.SystemCollection(
self._conn,
self._systems_path,
redfish_version=self.redfish_version,
)
def get_system(self, identity):
"""Given the identity return a System object
:param identity: The identity of the System resource
:returns: The System object
"""
return system.System(
self._conn, identity, redfish_version=self.redfish_version
)
def get_node_collection(self):
"""Get the NodeCollection object
:raises: MissingAttributeError, if the collection attribute is
not found
:returns: a NodeCollection object
"""
return node.NodeCollection(
self._conn, self._nodes_path, redfish_version=self.redfish_version
)
def get_node(self, identity):
"""Given the identity return a Node object
:param identity: The identity of the Node resource
:returns: The Node object
"""
return node.Node(
self._conn, identity, redfish_version=self.redfish_version
)
def get_storage_service_collection(self):
"""Get the StorageServiceCollection object
:raises: MissingAttributeError, if the collection attribute is
not found
:returns: a StorageServiceCollection object
"""
return storage_service.StorageServiceCollection(
self._conn,
self._storage_service_path,
redfish_version=self.redfish_version,
)
def get_storage_service(self, identity):
"""Given the identity return a StorageService object
:param identity: The identity of the StorageService resource
:returns: The StorageService object
"""
return storage_service.StorageService(
self._conn, identity, redfish_version=self.redfish_version
)
def get_chassis_collection(self):
"""Get the ChassisCollection object
:raises: MissingAttributeError, if the collection attribute is
not found
:returns: a ChassisCollection object
"""
return chassis.ChassisCollection(
self._conn,
self._chassis_path,
redfish_version=self.redfish_version,
)
def get_chassis(self, identity):
"""Given the identity return a Chassis object
:param identity: The identity of the Chassis resource
:returns: The Chassis object
"""
return chassis.Chassis(
self._conn, identity, redfish_version=self.redfish_version
)
def get_fabric_collection(self):
"""Get the FabricCollection object
:raises: MissingAttributeError, if the collection attribute is
not found
:returns: a FabricCollection object
"""
return fabric.FabricCollection(
self._conn,
self._fabrics_path,
redfish_version=self.redfish_version,
)
def get_fabric(self, identity):
"""Given the identity return a Fabric object
:param identity: The identity of the Fabric resource
:returns: The Fabric object
"""
return fabric.Fabric(
self._conn, identity, redfish_version=self.redfish_version
)
def get_manager_collection(self):
"""Get the ManagerCollection object
:raises: MissingAttributeError, if the collection attribute is
not found
:returns: a ManagerCollection object
"""
return manager.ManagerCollection(
self._conn,
self._managers_path,
redfish_version=self.redfish_version,
)
def get_manager(self, identity):
"""Given the identity return a Manager object
:param identity: The identity of the Manager resource
:returns: The Manager object
"""
return manager.Manager(
self._conn, identity, redfish_version=self.redfish_version
)
def get_ethernet_switch_collection(self):
"""Get the EthernetSwitchCollection object
:raises: MissingAttributeError, if the collection attribute is
not found
:returns: a EthernetSwitchCollection object
"""
return ethernet_switch.EthernetSwitchCollection(
self._conn,
self._ethernet_switches_path,
redfish_version=self.redfish_version,
)
def get_ethernet_switch(self, identity):
"""Given the identity return a EthernetSwitch object
:param identity: The identity of the EthernetSwitch resource
:returns: The EthernetSwitch object
"""
return ethernet_switch.EthernetSwitch(
self._conn, identity, redfish_version=self.redfish_version
)
def get_task_service(self):
"""Get the TaskService object
:returns: The TaskService object
"""
return task_service.TaskService(
self._conn,
self._task_service_path,
redfish_version=self.redfish_version,
)
def get_registries_collection(self):
"""Get the RegistriesCollection object
:raises: MissingAttributeError, if the collection attribute is
not found
:returns: a RegistriesCollection object
"""
return message_registry_file.MessageRegistryFileCollection(
self._conn,
self._registries_path,
redfish_version=self.redfish_version,
)
def get_registries(self, identity):
"""Given the identity return a Registries object
:param identity: The identity of the registries resource
:returns: The Registries object
"""
return message_registry_file.MessageRegistryFile(
self._conn, identity, redfish_version=self.redfish_version
)
def get_event_service(self):
"""Return a EventService object
:returns: The EventService object
"""
return event_service.EventService(
self._conn,
self._event_service_path,
redfish_version=self.redfish_version,
)
def _get_resource_class_from_path(self, path):
"""Get resource class from a given path
:param path: Path of any rsd resource
:returns: Corresponding resource class
"""
body = self._conn.get(path=path).json()
if not body.get("@odata.type"):
raise exceptions.MissingAttributeError(
attribute="@odata.type", resource=path
)
# Normally the format of resource_type is '#{namespace}.{entity_type}'
# Here we use entity_type to find the corresponding resource class
entity_type = body["@odata.type"].split(".")[-1]
return types.RESOURCE_CLASS.get(entity_type)
def get_resource(self, path):
"""Return corresponding resource object from path
:param path: The path of a resource or resource collection
:returns: corresponding resource or resource collection object
"""
resource_class = self._get_resource_class_from_path(path)
if not resource_class:
raise rsd_lib_exceptions.NoMatchingResourceError(uri=path)
return resource_class(
self._conn, path, redfish_version=self.redfish_version
)