1 files changed, 79 insertions, 0 deletions
diff --git a/cyborg_enhancement/mitaka_version/cyborg/cyborg/accelerator/drivers/base.py b/cyborg_enhancement/mitaka_version/cyborg/cyborg/accelerator/drivers/base.py
new file mode 100644
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+++ b/cyborg_enhancement/mitaka_version/cyborg/cyborg/accelerator/drivers/base.py
@@ -0,0 +1,79 @@
+# Copyright 2017 Lenovo, Inc.
+#
+# 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.
+"""
+Abstract base classes for drivers.
+"""
+
+import abc
+import six
+
+
+@six.add_metaclass(abc.ABCMeta)
+class BaseDriver(object):
+    """Base class for all drivers.
+
+    Defines the abstract base class for generic and vendor drivers.
+    """
+
+    standard_interfaces = ('discover', 'list', 'update', 'attach', 'detach')
+
+    discover = None
+    """`Standard` attribute for discovering drivers.
+
+    A reference to an instance of :class:DiscoverInterface.
+    """
+
+    list = None
+    """`Core` attribute for listing drivers.
+
+    A reference to an instance of :class:ListInterface.
+    """
+
+    update = None
+    """`Standard` attribute to update drivers.
+
+    A reference to an instance of :class:UpdateInterface.
+    """
+
+    attach = None
+    """`Standard` attribute to attach accelerator to an instance.
+
+    A reference to an instance of :class:AttachInterface.
+    """
+
+    detach = None
+    """`Standard` attribute to detach accelerator to an instance.
+
+    A reference to an instance of :class:AttachInterface.
+    """
+
+    def __init__(self):
+        pass
+
+    @property
+    def all_interfaces(self):
+        return (list(self.standard_interfaces))
+
+    def get_properties(self):
+        """Gets the properties of the driver.
+
+        :returns: dictionary of <property name>:<property description> entries.
+        """
+
+        properties = {}
+        for iface_name in self.all_interfaces:
+            iface = getattr(self, iface_name, None)
+            if iface:
+                properties.update(iface.get_properties())
+        return properties