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diff --git a/policyhandler/pdp_api_v0/policy_updates.py b/policyhandler/pdp_api_v0/policy_updates.py
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+# ================================================================================
+# Copyright (c) 2018-2019 AT&T Intellectual Property. 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.
+# ============LICENSE_END=========================================================
+#
+
+"""policy-updates accumulates the policy-update notifications from PDP"""
+
+import json
+import os
+
+from ..onap.audit import Audit
+from ..policy_consts import POLICY_ID, POLICY_NAMES
+from ..utils import Utils
+from .pdp_consts import POLICY_NAME
+from .policy_utils import PolicyUtils
+
+
+_LOGGER = Utils.get_logger(__file__)
+
+class PolicyUpdates(object):
+ """Keep and consolidate the policy-updates (audit, policies_updated, policies_removed)"""
+ PDP_API_FOLDER = os.path.basename(os.path.dirname(os.path.realpath(__file__)))
+
+ def __init__(self):
+ """init and reset"""
+ self._audit = None
+ self._policies_updated = {}
+ self._policies_removed = {}
+
+ def reset(self):
+ """resets the state"""
+ self.__init__()
+
+ def pop_policy_updates(self):
+ """
+ Returns the consolidated (audit, policies_updated, policies_removed)
+ and resets the state
+ """
+ if not self._audit:
+ return None, None, None
+
+ audit = self._audit
+ policies_updated = self._policies_updated
+ policies_removed = self._policies_removed
+
+ self.reset()
+
+ return audit, policies_updated, policies_removed
+
+
+ def push_policy_updates(self, policies_updated, policies_removed):
+ """consolidate the new policies_updated, policies_removed to existing ones"""
+ for policy_body in policies_updated:
+ policy_name = policy_body.get(POLICY_NAME)
+ policy = PolicyUtils.convert_to_policy(policy_body)
+ if not policy:
+ continue
+ policy_id = policy.get(POLICY_ID)
+
+ self._policies_updated[policy_id] = policy
+
+ rm_policy_names = self._policies_removed.get(policy_id, {}).get(POLICY_NAMES)
+ if rm_policy_names and policy_name in rm_policy_names:
+ del rm_policy_names[policy_name]
+
+ for policy_body in policies_removed:
+ policy_name = policy_body.get(POLICY_NAME)
+ policy = PolicyUtils.convert_to_policy(policy_body)
+ if not policy:
+ continue
+ policy_id = policy.get(POLICY_ID)
+
+ if policy_id in self._policies_removed:
+ policy = self._policies_removed[policy_id]
+
+ if POLICY_NAMES not in policy:
+ policy[POLICY_NAMES] = {}
+ policy[POLICY_NAMES][policy_name] = True
+ self._policies_removed[policy_id] = policy
+
+ req_message = ("policy-update notification - updated[{0}], removed[{1}]"
+ .format(len(self._policies_updated),
+ len(self._policies_removed)))
+
+ if not self._audit:
+ self._audit = Audit(job_name="policy_update",
+ req_message=req_message,
+ retry_get_config=True)
+ else:
+ self._audit.req_message = req_message
+
+ _LOGGER.info(
+ "pending(%s) for %s policies_updated %s policies_removed %s",
+ self._audit.request_id, req_message,
+ json.dumps(self._policies_updated), json.dumps(self._policies_removed))