Add v2.3 support for get_resource method

Change-Id: I8745f401b3b3d17522d40a63f9dd51a9a720af82

rsd_lib/resources/v2_3/__init__.py

@@ -15,6 +15,7 @@
 
 from sushy.resources import base
 
+from rsd_lib import exceptions as rsd_lib_exceptions
 from rsd_lib.resources import v2_2
 from rsd_lib.resources.v2_3.ethernet_switch import ethernet_switch
 from rsd_lib.resources.v2_3.fabric import fabric
@@ -22,6 +23,7 @@ from rsd_lib.resources.v2_3.manager import manager
 from rsd_lib.resources.v2_3.node import node
 from rsd_lib.resources.v2_3.storage_service import storage_service
 from rsd_lib.resources.v2_3.system import system
+from rsd_lib.resources.v2_3.types import RESOURCE_CLASS
 
 
 class RSDLibV2_3(v2_2.RSDLibV2_2):
@@ -157,3 +159,18 @@ class RSDLibV2_3(v2_2.RSDLibV2_2):
             self._conn,
             identity,
             redfish_version=self.redfish_version)
+
+    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,
+            RESOURCE_CLASS)
+        if not resource_class:
+            raise rsd_lib_exceptions.NoMatchingResourceError(uri=path)
+        return resource_class(
+            self._conn, path, redfish_version=self.redfish_version
+        )

rsd_lib/resources/v2_3/types.py

@@ -0,0 +1,41 @@
+# Copyright 2019 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 copy import deepcopy
+
+from rsd_lib.resources.v2_2.types import RESOURCE_CLASS as RESOURCE_CLASS_V22
+from rsd_lib.resources.v2_3.storage_service import drive
+from rsd_lib.resources.v2_3.storage_service import drive_metrics
+from rsd_lib.resources.v2_3.storage_service import storage_pool
+from rsd_lib.resources.v2_3.storage_service import volume_metrics
+
+RESOURCE_CLASS = deepcopy(RESOURCE_CLASS_V22)
+RESOURCE_CLASS.update(
+    {
+        'DriveCollection': drive.DriveCollection,
+        'DriveMetrics': drive_metrics.DriveMetrics,
+        'StoragePool': storage_pool.StoragePool,
+        'StoragePoolCollection': storage_pool.StoragePoolCollection,
+        'VolumeMetrics': volume_metrics.VolumeMetrics
+    }
+)
+for k in (
+        'LogicalDrive',
+        'LogicalDriveCollection',
+        'PhysicalDrive',
+        'PhysicalDriveCollection',
+        'RemoteTarget',
+        'RemoteTargetCollection'):
+    RESOURCE_CLASS.pop(k)

rsd_lib/tests/unit/resources/v2_3/test_rsdlib_v2_3.py

@@ -17,6 +17,7 @@ import json
 import mock
 import testtools
 
+from rsd_lib.exceptions import NoMatchingResourceError
 from rsd_lib.resources.v2_1.chassis import chassis as v2_1_chassis
 from rsd_lib.resources.v2_1.event_service import event_service \
     as v2_1_event_service
@@ -219,3 +220,32 @@ class RSDLibV2_3TestCase(testtools.TestCase):
     #     mock_telemetry_service.assert_called_once_with(
     #         self.rsd._conn, '/redfish/v1/TelemetryService',
     #         redfish_version=self.rsd.redfish_version)
+
+    def test_get_resource(self):
+        with mock.patch.object(
+            self.rsd,
+            "_get_resource_class_from_path",
+            return_value=v2_3_storage_service.storage_pool.StoragePool,
+        ):
+            with open(
+                "rsd_lib/tests/unit/json_samples/v2_3/storage_pool.json",
+                "r"
+            ) as f:
+                self.conn.get.return_value.json.return_value = json.loads(
+                    f.read()
+                )
+            self.assertIsInstance(
+                self.rsd.get_resource(
+                    "/redfish/v1/TelemetryService"),
+                v2_3_storage_service.storage_pool.StoragePool
+            )
+
+    def test_get_resource_with_no_class_match(self):
+        with mock.patch.object(
+            self.rsd, "_get_resource_class_from_path", return_value=None
+        ):
+            self.assertRaises(
+                NoMatchingResourceError,
+                self.rsd.get_resource,
+                "/redfish/v1/chassis/1",
+            )