osdf rearchitecture into apps and libs

Change-Id: I2db2f8e252bd5e60807b2ffabf5a5b193a789f7a
Signed-off-by: vrvarma <vv8305@att.com>
Issue-ID: OPTFRA-637

1 files changed, 99 insertions, 0 deletions

diff --git a/apps/placement/optimizers/conductor/api_builder.py b/apps/placement/optimizers/conductor/api_builder.py
new file mode 100644
index 0000000..7b61580
--- /dev/null
+++ b/apps/placement/optimizers/conductor/api_builder.py
@@ -0,0 +1,99 @@
+# -------------------------------------------------------------------------
+#   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
+
+from jinja2 import Template
+
+import apps.placement.optimizers.conductor.translation as tr
+from osdf.adapters.policy.utils import group_policies_gen
+from osdf.utils.programming_utils import list_flatten
+
+
+def _build_parameters(group_policies, request_json):
+    """
+    Function prepares parameters section for has request
+    :param group_policies: filtered policies
+    :param request_json: parameter data received from a client
+    :return:
+    """
+    initial_params = tr.get_opt_query_data(request_json, group_policies['request_param_query'])
+    params = dict()
+    params.update({"REQUIRED_MEM": initial_params.pop("requiredMemory", "")})
+    params.update({"REQUIRED_DISK": initial_params.pop("requiredDisk", "")})
+    params.update({"customer_lat": initial_params.pop("customerLatitude", 0.0)})
+    params.update({"customer_long": initial_params.pop("customerLongitude", 0.0)})
+    params.update({"service_name": request_json['serviceInfo']['serviceName']})
+    params.update({"service_id": request_json['serviceInfo']['serviceInstanceId']})
+
+    for key, val in initial_params.items():
+        if val and val != "":
+            params.update({key: val})
+
+    return params
+
+
+def conductor_api_builder(request_json, flat_policies: list, local_config,
+                          template="apps/placement/templates/conductor_interface.json"):
+    """Build an OSDF southbound API call for HAS-Conductor/Placement optimization
+    :param request_json: parameter data received from a client
+    :param flat_policies: policy data received from the policy platform (flat policies)
+    :param template: template to generate southbound API call to conductor
+    :param local_config: local configuration file with pointers for the service specific information
+    :param prov_status: provStatus retrieved from Subscriber policy
+    :return: json to be sent to Conductor/placement optimization
+    """
+    templ = Template(open(template).read())
+    gp = group_policies_gen(flat_policies, local_config)
+    demand_vnf_name_list = []
+
+    for placementDemand in request_json['placementInfo']['placementDemands']:
+        demand_vnf_name_list.append(placementDemand['resourceModuleName'].lower())
+    demand_list = tr.gen_demands(request_json, gp['vnfPolicy'])
+    attribute_policy_list = tr.gen_attribute_policy(demand_vnf_name_list, gp['attribute'])
+    distance_to_location_policy_list = tr.gen_distance_to_location_policy(
+        demand_vnf_name_list, gp['distance_to_location'])
+    inventory_policy_list = tr.gen_inventory_group_policy(demand_vnf_name_list, gp['inventory_group'])
+    resource_instance_policy_list = tr.gen_resource_instance_policy(
+        demand_vnf_name_list, gp['instance_fit'])
+    resource_region_policy_list = tr.gen_resource_region_policy(demand_vnf_name_list, gp['region_fit'])
+    zone_policy_list = tr.gen_zone_policy(demand_vnf_name_list, gp['zone'])
+    optimization_policy_list = tr.gen_optimization_policy(demand_vnf_name_list, gp['placement_optimization'])
+    reservation_policy_list = tr.gen_reservation_policy(demand_vnf_name_list, gp['instance_reservation'])
+    capacity_policy_list = tr.gen_capacity_policy(demand_vnf_name_list, gp['vim_fit'])
+    hpa_policy_list = tr.gen_hpa_policy(demand_vnf_name_list, gp['hpa'])
+    req_params_dict = _build_parameters(gp, request_json)
+    conductor_policies = [attribute_policy_list, distance_to_location_policy_list, inventory_policy_list,
+                          resource_instance_policy_list, resource_region_policy_list, zone_policy_list,
+                          reservation_policy_list, capacity_policy_list, hpa_policy_list]
+    filtered_policies = [x for x in conductor_policies if len(x) > 0]
+    policy_groups = list_flatten(filtered_policies)
+    req_info = request_json['requestInfo']
+    request_type = req_info.get('requestType', None)
+    rendered_req = templ.render(
+        requestType=request_type,
+        demand_list=demand_list,
+        policy_groups=policy_groups,
+        optimization_policies=optimization_policy_list,
+        name=req_info['requestId'],
+        timeout=req_info['timeout'],
+        limit=req_info['numSolutions'],
+        request_params=req_params_dict,
+        json=json)
+    json_payload = json.dumps(json.loads(rendered_req))  # need this because template's JSON is ugly!
+    return json_payload