From 9a4d3c5b8dc9c7697275cab38ee45b014dff9e55 Mon Sep 17 00:00:00 2001 From: Alex Shatov Date: Mon, 1 Apr 2019 11:32:06 -0400 Subject: 5.0.0 policy-handler - new PDP API or old PDP API - in R4 Dublin the policy-engine introduced a totally new API - policy-handler now has a startup option to either use the new PDP API or the old PDP API that was created-updated before the end of 2018 - see README.md and README_pdp_api_v0.md for instructions on how to setup the policy-handler running either with the new PDP API or the old (pdp_api_v0) PDP API - this is a massive refactoring that changed almost all the source files, but kept the old logic when using the old (pdp_api_v0) PDP API - all the code related to PDP API version is split into two subfolders = pdp_api/ contains the new PDP API source code = pdp_api_v0/ contains the old (2018) PDP API source code = pdp_client.py imports from either pdp_api or pdp_api_v0 = the rest of the code is only affected when it needs to branch the logic - logging to policy_handler.log now shows the path of the source file to allow tracing which PDP API is actually used - when the new PDP API is used, the policy-update flow is disabled = passive mode of operation = no web-socket = no periodic catch_up = no policy-filters = reduced web-API - only a single /policy_latest endpoint is available /policies_latest returns 404 /catch_up request is accepted, but ignored - on new PDP API: http /policy_latest returns the new data from the new PDP API with the following fields added by the policy-handler to keep other policy related parts intact in R4 (see pdp_api/policy_utils.py) = "policyName" = policy_id + "." + "policyVersion" + ".xml" = "policyVersion" = str("metadata"."policy-version") = "config" - is the renamed "properties" from the new PDP API response - unit tests are split into two subfolders as well = main/ for the new PDP API testing = pdp_api_v0/ for the old (2018) PDP API - removed the following line from the license text of changed files ECOMP is a trademark and service mark of AT&T Intellectual Property. - the new PDP API is expected to be extended and redesigned in R5 El Alto - on retiring the old PDP API - the intention is to be able to remove the pdp_api_v0/ subfolder and minimal related cleanup of the code that imports that as well as the cleanup of the config.py, etc. Change-Id: Ief9a2ae4541300308caaf97377f4ed051535dbe4 Signed-off-by: Alex Shatov Issue-ID: DCAEGEN2-1128 --- tests/main/mock_policy_engine.py | 96 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 tests/main/mock_policy_engine.py (limited to 'tests/main/mock_policy_engine.py') diff --git a/tests/main/mock_policy_engine.py b/tests/main/mock_policy_engine.py new file mode 100644 index 0000000..1bac045 --- /dev/null +++ b/tests/main/mock_policy_engine.py @@ -0,0 +1,96 @@ +# ============LICENSE_START======================================================= +# 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========================================================= +# +"""mocking for the policy-engine - shared by many tests""" + +import copy +import json + +from policyhandler.pdp_api.pdp_consts import (PDP_METADATA, + PDP_POLICY_ID, + PDP_POLICY_VERSION, + PDP_POLICIES, PDP_PROPERTIES) +from policyhandler.pdp_api.policy_utils import PolicyUtils +from policyhandler.utils import Utils + +_LOGGER = Utils.get_logger(__file__) + + +class MockPolicyEngine(object): + """pretend this is the policy-engine""" + scope_prefix = "test_scope_prefix.pdp_desition_" + LOREM_IPSUM = """Lorem ipsum dolor sit amet consectetur ametist""".split() + LONG_TEXT = "0123456789" * 100 + _policies = {} + + _inited = False + + @staticmethod + def init(): + """init collection of policies: policy_version = policy_index + 1""" + if MockPolicyEngine._inited: + return + MockPolicyEngine._inited = True + + MockPolicyEngine._policies = dict( + (policy_id, MockPolicyEngine._create_policy_body(policy_id, policy_version)) + for policy_id, policy_version in + [(MockPolicyEngine.get_policy_id(policy_index), policy_index + 1) + for policy_index in range(1 + len(MockPolicyEngine.LOREM_IPSUM))] + ) + _LOGGER.info("_policies: %s", json.dumps(MockPolicyEngine._policies)) + + @staticmethod + def get_policy_id(policy_index): + """get the policy_id by policy_index""" + return (MockPolicyEngine.scope_prefix + + MockPolicyEngine.LOREM_IPSUM[ + policy_index % len(MockPolicyEngine.LOREM_IPSUM)]) + + @staticmethod + def get_policy(policy_id): + """find policy the way the policy-engine finds""" + if policy_id not in MockPolicyEngine._policies: + return {} + return {PDP_POLICIES: {policy_id: copy.deepcopy(MockPolicyEngine._policies[policy_id])}} + + @staticmethod + def gen_policy_latest(policy_index, version_offset=0): + """generate the policy response from policy-handler by policy_index = version - 1""" + policy_id = MockPolicyEngine.get_policy_id(policy_index) + policy = PolicyUtils.convert_to_policy( + MockPolicyEngine._create_policy_body(policy_id, policy_index + 1 - version_offset) + ) + return policy_id, policy + + @staticmethod + def _create_policy_body(policy_id, policy_version=1): + """returns a fake policy-body""" + return { + "type": "unit.test.type.policies", + "version": "1.0.0", + PDP_METADATA: { + PDP_POLICY_ID: policy_id, + PDP_POLICY_VERSION: policy_version, + "description": "description for {}".format(policy_id) + }, + PDP_PROPERTIES: { + "policy_updated_from_ver": (policy_version - 1), + "policy_updated_to_ver": policy_version, + "policy_hello": "world!", + "updated_policy_id": policy_id + } + } -- cgit 1.2.3-korg