Seed code for other adapters

Issue-ID: OPTFRA-47
Change-Id: I33595df23f077b2a9366c45b69afecdf80beaaf8
Signed-off-by: Sastry Isukapalli <sastry@research.att.com>

2 files changed, 40 insertions, 0 deletions

diff --git a/adapters/local_data/__init__.py b/adapters/local_data/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/adapters/local_data/__init__.py
diff --git a/adapters/local_data/local_policies.py b/adapters/local_data/local_policies.py
new file mode 100644
index 0000000..c63ae5a
--- /dev/null
+++ b/adapters/local_data/local_policies.py
@@ -0,0 +1,40 @@
+# -------------------------------------------------------------------------
+#   Copyright (c) 2015-2017 AT&T Intellectual Property
+#
+#   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.
+#
+# -------------------------------------------------------------------------
+#
+
+import json
+import os
+
+
+def get_local_policies(local_policy_folder, local_policy_list, policy_id_list=None):
+    """
+    Get policies from a local file system.
+    Required for the following scenarios:
+    (a) doing work-arounds (e.g. if we are asked to drop some policies for testing purposes)
+    (b) work-arounds when policy platform is giving issues (e.g. if dev/IST policies are wiped out in an upgrade)
+    :param local_policy_folder: where the policy files are present
+    :param local_policy_list: list of local policies
+    :param policy_id_list: list of policies to get (if unspecified or None, get all)
+    :return: get policies
+    """
+    policies = []
+    for fname in local_policy_list:  # ugly removal of .json from file name
+        if policy_id_list and fname[:-5] not in policy_id_list:
+            continue
+        with open(os.path.join(local_policy_folder, fname)) as fid:
+            policies.append(json.load(fid))
+    return policies