1 files changed, 52 insertions, 0 deletions
diff --git a/keystone-moon/keystone/identity/generator.py b/keystone-moon/keystone/identity/generator.py
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+++ b/keystone-moon/keystone/identity/generator.py
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+# Copyright 2014 IBM Corp.
+#
+# 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.
+
+"""ID Generator provider interface."""
+
+import abc
+
+from oslo_config import cfg
+import six
+
+from keystone.common import dependency
+from keystone.common import manager
+from keystone import exception
+
+CONF = cfg.CONF
+
+
+@dependency.provider('id_generator_api')
+class Manager(manager.Manager):
+    """Default pivot point for the identifier generator backend."""
+
+    def __init__(self):
+        super(Manager, self).__init__(CONF.identity_mapping.generator)
+
+
+@six.add_metaclass(abc.ABCMeta)
+class IDGenerator(object):
+    """Interface description for an ID Generator provider."""
+
+    @abc.abstractmethod
+    def generate_public_ID(self, mapping):
+        """Return a Public ID for the given mapping dict.
+
+        :param dict mapping: The items to be hashed.
+
+        The ID must be reproducible and no more than 64 chars in length.
+        The ID generated should be independent of the order of the items
+        in the mapping dict.
+
+        """
+        raise exception.NotImplemented()  # pragma: no cover