Add generic conductor interface

Issue-ID: OPTFRA-715
Signed-off-by: krishnaa96 <krishna.moorthy6@wipro.com>
Change-Id: I84218ab65e645a90d2ff1c365bdde1e06ab27d2e

15 files changed, 326 insertions, 283 deletions

diff --git a/apps/placement/models/api/placementRequest.py b/apps/placement/models/api/placementRequest.py
index a0941cf..e04c2af 100644
--- a/apps/placement/models/api/placementRequest.py
+++ b/apps/placement/models/api/placementRequest.py
@@ -102,4 +102,4 @@ class PlacementAPI(OSDFModel):
     requestInfo = ModelType(RequestInfo, required=True)
     placementInfo = ModelType(PlacementInfo, required=True)
     licenseInfo = ModelType(LicenseInfo)
-    serviceInfo = ModelType(ServiceInfo, required=True)
+    serviceInfo = ModelType(ServiceInfo, required=True)
\ No newline at end of file
diff --git a/apps/placement/optimizers/conductor/conductor.py b/apps/placement/optimizers/conductor/conductor.py
deleted file mode 100755
index 05d1641..0000000
--- a/apps/placement/optimizers/conductor/conductor.py
+++ /dev/null
@@ -1,202 +0,0 @@
-# -------------------------------------------------------------------------

-#   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.

-#

-# -------------------------------------------------------------------------

-#

-

-"""

-This application generates conductor API calls using the information received from SO and Policy platform.

-"""

-

-import json

-import time

-

-from jinja2 import Template

-from requests import RequestException

-

-from apps.placement.optimizers.conductor.api_builder import conductor_api_builder

-from osdf.logging.osdf_logging import debug_log

-from osdf.utils.interfaces import RestClient

-from osdf.operation.exceptions import BusinessException

-

-

-def request(req_object, osdf_config, flat_policies):

-    """

-    Process a placement request from a Client (build Conductor API call, make the call, return result)

-    :param req_object: Request parameters from the client

-    :param osdf_config: Configuration specific to SNIRO application (core + deployment)

-    :param flat_policies: policies related to placement (fetched based on request)

-    :param prov_status: provStatus retrieved from Subscriber policy

-    :return: response from Conductor (accounting for redirects from Conductor service

-    """

-    config = osdf_config.deployment

-    local_config = osdf_config.core

-    uid, passwd = config['conductorUsername'], config['conductorPassword']

-    conductor_url = config['conductorUrl']

-    req_id = req_object['requestInfo']['requestId']

-    transaction_id = req_object['requestInfo']['transactionId']

-    headers = dict(transaction_id=transaction_id)

-    placement_ver_enabled = config.get('placementVersioningEnabled', False)

-    

-    if placement_ver_enabled:

-        cond_minor_version = config.get('conductorMinorVersion', None) 

-        if cond_minor_version is not None:

-            x_minor_version = str(cond_minor_version)

-            headers.update({'X-MinorVersion': x_minor_version})

-        debug_log.debug("Versions set in HTTP header to conductor: X-MinorVersion: {} ".format(x_minor_version))

-

-    max_retries = config.get('conductorMaxRetries', 30)

-    ping_wait_time = config.get('conductorPingWaitTime', 60)

-

-    rc = RestClient(userid=uid, passwd=passwd, method="GET", log_func=debug_log.debug, headers=headers)

-    conductor_req_json_str = conductor_api_builder(req_object, flat_policies, local_config)

-    conductor_req_json = json.loads(conductor_req_json_str)

-

-    debug_log.debug("Sending first Conductor request for request_id {}".format(req_id))

-    resp, raw_resp = initial_request_to_conductor(rc, conductor_url, conductor_req_json)

-    # Very crude way of keeping track of time.

-    # We are not counting initial request time, first call back, or time for HTTP request

-    total_time, ctr = 0, 2

-    client_timeout = req_object['requestInfo']['timeout']

-    configured_timeout = max_retries * ping_wait_time

-    max_timeout = min(client_timeout, configured_timeout)

-

-    while True:  # keep requesting conductor till we get a result or we run out of time

-        if resp is not None:

-            if resp["plans"][0].get("status") in ["error"]:

-                raise RequestException(response=raw_resp, request=raw_resp.request)

-

-            if resp["plans"][0].get("status") in ["done", "not found"]:

-                if resp["plans"][0].get("recommendations"):

-                    return conductor_response_processor(resp, raw_resp, req_id)

-                else:  # "solved" but no solutions found

-                    return conductor_no_solution_processor(resp, raw_resp, req_id)

-            new_url = resp['plans'][0]['links'][0][0]['href']  # TODO: check why a list of lists

-

-        if total_time >= max_timeout:

-            raise BusinessException("Conductor could not provide a solution within {} seconds,"

-                                    "this transaction is timing out".format(max_timeout))

-        time.sleep(ping_wait_time)

-        ctr += 1

-        debug_log.debug("Attempt number {} url {}; prior status={}".format(ctr, new_url, resp['plans'][0]['status']))

-        total_time += ping_wait_time

-

-        try:

-            raw_resp = rc.request(new_url, raw_response=True)

-            resp = raw_resp.json()

-        except RequestException as e:

-            debug_log.debug("Conductor attempt {} for request_id {} has failed because {}".format(ctr, req_id, str(e)))

-

-

-def initial_request_to_conductor(rc, conductor_url, conductor_req_json):

-    """First steps in the request-redirect chain in making a call to Conductor

-    :param rc: REST client object for calling conductor

-    :param conductor_url: conductor's base URL to submit a placement request

-    :param conductor_req_json: request json object to send to Conductor

-    :return: URL to check for follow up (similar to redirects); we keep checking these till we get a result/error

-    """

-    debug_log.debug("Payload to Conductor: {}".format(json.dumps(conductor_req_json)))

-    raw_resp = rc.request(url=conductor_url, raw_response=True, method="POST", json=conductor_req_json)

-    resp = raw_resp.json()

-    if resp["status"] != "template":

-        raise RequestException(response=raw_resp, request=raw_resp.request)

-    time.sleep(10)  # 10 seconds wait time to avoid being too quick!

-    plan_url = resp["links"][0][0]["href"]

-    debug_log.debug("Attempting to read the plan from the conductor provided url {}".format(plan_url))

-    raw_resp = rc.request(raw_response=True, url=plan_url)  # TODO: check why a list of lists for links

-    resp = raw_resp.json()

-

-    if resp["plans"][0]["status"] in ["error"]:

-        raise RequestException(response=raw_resp, request=raw_resp.request)

-    return resp, raw_resp  # now the caller of this will handle further follow-ups

-

-

-def conductor_response_processor(conductor_response, raw_response, req_id):

-    """Build a response object to be sent to client's callback URL from Conductor's response

-    This includes Conductor's placement optimization response, and required ASDC license artifacts

-

-    :param conductor_response: JSON response from Conductor

-    :param raw_response: Raw HTTP response corresponding to above

-    :param req_id: Id of a request

-    :return: JSON object that can be sent to the client's callback URL

-    """

-    composite_solutions = []

-    name_map = {"physical-location-id": "cloudClli", "host_id": "vnfHostName",

-                "cloud_version": "cloudVersion", "cloud_owner": "cloudOwner",

-                "cloud": "cloudRegionId", "service": "serviceInstanceId", "is_rehome": "isRehome",

-                "location_id": "locationId", "location_type": "locationType", "directives": "oof_directives"}

-    for reco in conductor_response['plans'][0]['recommendations']:

-        for resource in reco.keys():

-            c = reco[resource]['candidate']

-            solution = {

-                'resourceModuleName': resource,

-                'serviceResourceId': reco[resource].get('service_resource_id', ""),

-                'solution': {"identifierType": name_map.get(c['inventory_type'], c['inventory_type']),

-                             'identifiers': [c['candidate_id']],

-                             'cloudOwner': c.get('cloud_owner', "")},

-                'assignmentInfo': []

-            }

-            for key, value in c.items():

-                if key in ["location_id", "location_type", "is_rehome", "host_id"]:

-                    try:

-                        solution['assignmentInfo'].append({"key": name_map.get(key, key), "value": value})

-                    except KeyError:

-                        debug_log.debug("The key[{}] is not mapped and will not be returned in assignment info".format(key))

-

-            for key, value in reco[resource]['attributes'].items():

-                try:

-                    solution['assignmentInfo'].append({"key": name_map.get(key, key), "value": value})

-                except KeyError:

-                    debug_log.debug("The key[{}] is not mapped and will not be returned in assignment info".format(key))

-            composite_solutions.append(solution)

-

-    request_status = "completed" if conductor_response['plans'][0]['status'] == "done" \

-        else conductor_response['plans'][0]['status']

-    transaction_id = raw_response.headers.get('transaction_id', "")

-    status_message = conductor_response.get('plans')[0].get('message', "")

-

-    solution_info = {}

-    if composite_solutions:

-        solution_info.setdefault('placementSolutions', [])

-        solution_info['placementSolutions'].append(composite_solutions)

-

-    resp = {

-        "transactionId": transaction_id,

-        "requestId": req_id,

-        "requestStatus": request_status,

-        "statusMessage": status_message,

-        "solutions": solution_info

-    }

-    return resp

-

-

-def conductor_no_solution_processor(conductor_response, raw_response, request_id,

-                                    template_placement_response="templates/plc_opt_response.jsont"):

-    """Build a response object to be sent to client's callback URL from Conductor's response

-    This is for case where no solution is found

-

-    :param conductor_response: JSON response from Conductor

-    :param raw_response: Raw HTTP response corresponding to above

-    :param request_id: request Id associated with the client request (same as conductor response's "name")

-    :param template_placement_response: the template for generating response to client (plc_opt_response.jsont)

-    :return: JSON object that can be sent to the client's callback URL

-    """

-    status_message = conductor_response["plans"][0].get("message")

-    templ = Template(open(template_placement_response).read())

-    return json.loads(templ.render(composite_solutions=[], requestId=request_id, license_solutions=[],

-                                   transactionId=raw_response.headers.get('transaction_id', ""),

-                                   requestStatus="completed", statusMessage=status_message, json=json))

-

-

diff --git a/apps/placement/optimizers/conductor/remote_opt_processor.py b/apps/placement/optimizers/conductor/remote_opt_processor.py
index a08f3a4..0b5cb16 100644
--- a/apps/placement/optimizers/conductor/remote_opt_processor.py
+++ b/apps/placement/optimizers/conductor/remote_opt_processor.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2015-2017 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -16,17 +17,95 @@
 # -------------------------------------------------------------------------
 #
 
+import json
+from jinja2 import Template
 from requests import RequestException
 
 import traceback
 from osdf.operation.error_handling import build_json_error_body
-from osdf.logging.osdf_logging import metrics_log, MH, error_log
-from apps.placement.optimizers.conductor import conductor
+from osdf.logging.osdf_logging import metrics_log, MH, error_log, debug_log
+from osdf.adapters.conductor import conductor
 from apps.license.optimizers.simple_license_allocation import license_optim
 from osdf.utils.interfaces import get_rest_client
 from osdf.utils.mdc_utils import mdc_from_json
 
 
+def conductor_response_processor(conductor_response, req_id, transaction_id):
+    """Build a response object to be sent to client's callback URL from Conductor's response
+    This includes Conductor's placement optimization response, and required ASDC license artifacts
+
+    :param conductor_response: JSON response from Conductor
+    :param raw_response: Raw HTTP response corresponding to above
+    :param req_id: Id of a request
+    :return: JSON object that can be sent to the client's callback URL
+    """
+    composite_solutions = []
+    name_map = {"physical-location-id": "cloudClli", "host_id": "vnfHostName",
+                "cloud_version": "cloudVersion", "cloud_owner": "cloudOwner",
+                "cloud": "cloudRegionId", "service": "serviceInstanceId", "is_rehome": "isRehome",
+                "location_id": "locationId", "location_type": "locationType", "directives": "oof_directives"}
+    for reco in conductor_response['plans'][0]['recommendations']:
+        for resource in reco.keys():
+            c = reco[resource]['candidate']
+            solution = {
+                'resourceModuleName': resource,
+                'serviceResourceId': reco[resource].get('service_resource_id', ""),
+                'solution': {"identifierType": name_map.get(c['inventory_type'], c['inventory_type']),
+                             'identifiers': [c['candidate_id']],
+                             'cloudOwner': c.get('cloud_owner', "")},
+                'assignmentInfo': []
+            }
+            for key, value in c.items():
+                if key in ["location_id", "location_type", "is_rehome", "host_id"]:
+                    try:
+                        solution['assignmentInfo'].append({"key": name_map.get(key, key), "value": value})
+                    except KeyError:
+                        debug_log.debug("The key[{}] is not mapped and will not be returned in assignment info".format(key))
+
+            for key, value in reco[resource]['attributes'].items():
+                try:
+                    solution['assignmentInfo'].append({"key": name_map.get(key, key), "value": value})
+                except KeyError:
+                    debug_log.debug("The key[{}] is not mapped and will not be returned in assignment info".format(key))
+            composite_solutions.append(solution)
+
+    request_status = "completed" if conductor_response['plans'][0]['status'] == "done" \
+        else conductor_response['plans'][0]['status']
+    status_message = conductor_response.get('plans')[0].get('message', "")
+
+    solution_info = {}
+    if composite_solutions:
+        solution_info.setdefault('placementSolutions', [])
+        solution_info['placementSolutions'].append(composite_solutions)
+
+    resp = {
+        "transactionId": transaction_id,
+        "requestId": req_id,
+        "requestStatus": request_status,
+        "statusMessage": status_message,
+        "solutions": solution_info
+    }
+    return resp
+
+
+def conductor_no_solution_processor(conductor_response, request_id, transaction_id,
+                                    template_placement_response="templates/plc_opt_response.jsont"):
+    """Build a response object to be sent to client's callback URL from Conductor's response
+    This is for case where no solution is found
+
+    :param conductor_response: JSON response from Conductor
+    :param raw_response: Raw HTTP response corresponding to above
+    :param request_id: request Id associated with the client request (same as conductor response's "name")
+    :param template_placement_response: the template for generating response to client (plc_opt_response.jsont)
+    :return: JSON object that can be sent to the client's callback URL
+    """
+    status_message = conductor_response["plans"][0].get("message")
+    templ = Template(open(template_placement_response).read())
+    return json.loads(templ.render(composite_solutions=[], requestId=request_id, license_solutions=[],
+                                   transactionId=transaction_id,
+                                   requestStatus="completed", statusMessage=status_message, json=json))
+
+
 def process_placement_opt(request_json, policies, osdf_config):
     """Perform the work for placement optimization (e.g. call SDC artifact and make conductor request)
     NOTE: there is scope to make the requests to policy asynchronous to speed up overall performance
@@ -51,7 +130,16 @@ def process_placement_opt(request_json, policies, osdf_config):
         # Conductor only handles placement, only call Conductor if placementDemands exist
         if request_json.get('placementInfo', {}).get('placementDemands'):
             metrics_log.info(MH.requesting("placement/conductor", req_id))
-            placement_response = conductor.request(request_json, osdf_config, policies)
+            req_info = request_json['requestInfo']
+            demands = request_json['placementInfo']['placementDemands']
+            request_parameters = request_json['placementInfo']['requestParameters']
+            service_info = request_json['serviceInfo']
+            resp = conductor.request(req_info, demands, request_parameters, service_info,
+                                               osdf_config, policies)
+            if resp["plans"][0].get("recommendations"):
+                placement_response = conductor_response_processor(resp, req_id, transaction_id)
+            else:  # "solved" but no solutions found
+                placement_response = conductor_no_solution_processor(resp, req_id, transaction_id)
             if license_info:  # Attach license solution if it exists
                 placement_response['solutionInfo']['licenseInfo'] = license_info
         else:  # License selection only scenario
diff --git a/osdf/adapters/conductor/__init__.py b/osdf/adapters/conductor/__init__.py
new file mode 100644
index 0000000..6156206
--- /dev/null
+++ b/osdf/adapters/conductor/__init__.py
@@ -0,0 +1,17 @@
+# -------------------------------------------------------------------------
+#   Copyright (c) 2017-2018 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.
+#
+# -------------------------------------------------------------------------
+#
\ No newline at end of file
diff --git a/apps/placement/optimizers/conductor/api_builder.py b/osdf/adapters/conductor/api_builder.py
index 398db8d..17057d8 100644
--- a/apps/placement/optimizers/conductor/api_builder.py
+++ b/osdf/adapters/conductor/api_builder.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2015-2017 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -16,30 +17,30 @@
 # -------------------------------------------------------------------------
 #
 
-import json
-
 from jinja2 import Template
+import json
 
-import apps.placement.optimizers.conductor.translation as tr
 from osdf.adapters.policy.utils import group_policies_gen
+import osdf.adapters.conductor.translation as tr
 from osdf.utils.programming_utils import list_flatten
 
 
-def _build_parameters(group_policies, request_json):
+def _build_parameters(group_policies, service_info, request_parameters):
     """
-    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['onap.policies.optimization.QueryPolicy'])
+        Function prepares parameters section for has request
+        :param group_policies: filtered policies
+        :param service_info: service info
+        :param request_parameters: request parameters
+        :return:
+        """
+    initial_params = tr.get_opt_query_data(request_parameters, group_policies['onap.policies.optimization.QueryPolicy'])
     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']})
+    params.update({"service_name": service_info.get('serviceName', "")})
+    params.update({"service_id": service_info.get('serviceInstanceId', "")})
 
     for key, val in initial_params.items():
         if val and val != "":
@@ -48,50 +49,51 @@ def _build_parameters(group_policies, request_json):
     return params
 
 
-def conductor_api_builder(request_json, flat_policies: list, local_config,
-                          template="apps/placement/templates/conductor_interface.json"):
+def conductor_api_builder(req_info, demands, request_parameters, service_info, flat_policies: list, local_config,
+                          template="osdf/adapters/conductor/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
-    """
+        :param req_info: parameter data received from a client
+        :param demands: list of demands
+        :param request_parameters: request parameters
+        :param service_info: service info object
+        :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
+        :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['onap.policies.optimization.VnfPolicy'])
+    demand_name_list = []
+    for demand in demands:
+        demand_name_list.append(demand['resourceModuleName'].lower())
+    demand_list = tr.gen_demands(demands, gp['onap.policies.optimization.VnfPolicy'])
     attribute_policy_list = tr.gen_attribute_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.AttributePolicy'])
+        demand_name_list, gp['onap.policies.optimization.AttributePolicy'])
     distance_to_location_policy_list = tr.gen_distance_to_location_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.DistancePolicy'])
+        demand_name_list, gp['onap.policies.optimization.DistancePolicy'])
     inventory_policy_list = tr.gen_inventory_group_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.InventoryGroupPolicy'])
+        demand_name_list, gp['onap.policies.optimization.InventoryGroupPolicy'])
     resource_instance_policy_list = tr.gen_resource_instance_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.ResourceInstancePolicy'])
+        demand_name_list, gp['onap.policies.optimization.ResourceInstancePolicy'])
     resource_region_policy_list = tr.gen_resource_region_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.ResourceRegionPolicy'])
+        demand_name_list, gp['onap.policies.optimization.ResourceRegionPolicy'])
     zone_policy_list = tr.gen_zone_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.AffinityPolicy'])
+        demand_name_list, gp['onap.policies.optimization.AffinityPolicy'])
     optimization_policy_list = tr.gen_optimization_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.OptimizationPolicy'])
+        demand_name_list, gp['onap.policies.optimization.OptimizationPolicy'])
     reservation_policy_list = tr.gen_reservation_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.InstanceReservationPolicy'])
+        demand_name_list, gp['onap.policies.optimization.InstanceReservationPolicy'])
     capacity_policy_list = tr.gen_capacity_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.Vim_fit'])
+        demand_name_list, gp['onap.policies.optimization.Vim_fit'])
     hpa_policy_list = tr.gen_hpa_policy(
-        demand_vnf_name_list, gp['onap.policies.optimization.HpaPolicy'])
-    req_params_dict = _build_parameters(gp, request_json)
+        demand_name_list, gp['onap.policies.optimization.HpaPolicy'])
+    req_params_dict = _build_parameters(gp, service_info, request_parameters)
     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,
diff --git a/osdf/adapters/conductor/conductor.py b/osdf/adapters/conductor/conductor.py
new file mode 100644
index 0000000..00069a4
--- /dev/null
+++ b/osdf/adapters/conductor/conductor.py
@@ -0,0 +1,110 @@
+# -------------------------------------------------------------------------
+#   Copyright (c) 2015-2017 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
+#
+#   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 requests import RequestException
+import time
+
+from osdf.adapters.conductor.api_builder import conductor_api_builder
+from osdf.logging.osdf_logging import debug_log
+from osdf.utils.interfaces import RestClient
+from osdf.operation.exceptions import BusinessException
+
+
+def request(req_info, demands, request_parameters, service_info, osdf_config, flat_policies):
+    config = osdf_config.deployment
+    local_config = osdf_config.core
+    uid, passwd = config['conductorUsername'], config['conductorPassword']
+    conductor_url = config['conductorUrl']
+    req_id = req_info["requestId"]
+    transaction_id = req_info['transactionId']
+    headers = dict(transaction_id=transaction_id)
+    placement_ver_enabled = config.get('placementVersioningEnabled', False)
+
+    if placement_ver_enabled:
+        cond_minor_version = config.get('conductorMinorVersion', None)
+        if cond_minor_version is not None:
+            x_minor_version = str(cond_minor_version)
+            headers.update({'X-MinorVersion': x_minor_version})
+            debug_log.debug("Versions set in HTTP header to conductor: X-MinorVersion: {} ".format(x_minor_version))
+
+    max_retries = config.get('conductorMaxRetries', 30)
+    ping_wait_time = config.get('conductorPingWaitTime', 60)
+
+    rc = RestClient(userid=uid, passwd=passwd, method="GET", log_func=debug_log.debug, headers=headers)
+    conductor_req_json_str = conductor_api_builder(req_info, demands, request_parameters, service_info, flat_policies,
+                                                   local_config)
+    conductor_req_json = json.loads(conductor_req_json_str)
+
+    debug_log.debug("Sending first Conductor request for request_id {}".format(req_id))
+
+    resp, raw_resp = initial_request_to_conductor(rc, conductor_url, conductor_req_json)
+    # Very crude way of keeping track of time.
+    # We are not counting initial request time, first call back, or time for HTTP request
+    total_time, ctr = 0, 2
+    client_timeout = req_info['timeout']
+    configured_timeout = max_retries * ping_wait_time
+    max_timeout = min(client_timeout, configured_timeout)
+
+    while True:  # keep requesting conductor till we get a result or we run out of time
+        if resp is not None:
+            if resp["plans"][0].get("status") in ["error"]:
+                raise RequestException(response=raw_resp, request=raw_resp.request)
+
+            if resp["plans"][0].get("status") in ["done", "not found"]:
+                return resp
+            new_url = resp['plans'][0]['links'][0][0]['href']  # TODO: check why a list of lists
+
+        if total_time >= max_timeout:
+            raise BusinessException("Conductor could not provide a solution within {} seconds,"
+                                    "this transaction is timing out".format(max_timeout))
+        time.sleep(ping_wait_time)
+        ctr += 1
+        debug_log.debug("Attempt number {} url {}; prior status={}".format(ctr, new_url, resp['plans'][0]['status']))
+        total_time += ping_wait_time
+
+        try:
+            raw_resp = rc.request(new_url, raw_response=True)
+            resp = raw_resp.json()
+        except RequestException as e:
+            debug_log.debug("Conductor attempt {} for request_id {} has failed because {}".format(ctr, req_id, str(e)))
+
+
+def initial_request_to_conductor(rc, conductor_url, conductor_req_json):
+    """First steps in the request-redirect chain in making a call to Conductor
+    :param rc: REST client object for calling conductor
+    :param conductor_url: conductor's base URL to submit a placement request
+    :param conductor_req_json: request json object to send to Conductor
+    :return: URL to check for follow up (similar to redirects); we keep checking these till we get a result/error
+    """
+    debug_log.debug("Payload to Conductor: {}".format(json.dumps(conductor_req_json)))
+    raw_resp = rc.request(url=conductor_url, raw_response=True, method="POST", json=conductor_req_json)
+    resp = raw_resp.json()
+    if resp["status"] != "template":
+        raise RequestException(response=raw_resp, request=raw_resp.request)
+    time.sleep(10)  # 10 seconds wait time to avoid being too quick!
+    plan_url = resp["links"][0][0]["href"]
+    debug_log.debug("Attempting to read the plan from the conductor provided url {}".format(plan_url))
+    raw_resp = rc.request(raw_response=True, url=plan_url)  # TODO: check why a list of lists for links
+    resp = raw_resp.json()
+
+    if resp["plans"][0]["status"] in ["error"]:
+        raise RequestException(response=raw_resp, request=raw_resp.request)
+    return resp, raw_resp  # now the caller of this will handle further follow-ups
diff --git a/apps/placement/templates/conductor_interface.json b/osdf/adapters/conductor/templates/conductor_interface.json
index 030d6a0..030d6a0 100755
--- a/apps/placement/templates/conductor_interface.json
+++ b/osdf/adapters/conductor/templates/conductor_interface.json
diff --git a/apps/placement/optimizers/conductor/translation.py b/osdf/adapters/conductor/translation.py
index d637152..12dfc88 100644
--- a/apps/placement/optimizers/conductor/translation.py
+++ b/osdf/adapters/conductor/translation.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2015-2017 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -26,25 +27,23 @@ from osdf.utils.programming_utils import dot_notation
 policy_config_mapping = yaml.safe_load(open('config/has_config.yaml')).get('policy_config_mapping')
 
 
-def get_opt_query_data(req_json, policies):
-    """
-    Fetch service and order specific details from the requestParameters field of a request.
-    :param req_json: a request file
-    :param policies: A set of policies
-    :return: A dictionary with service and order-specific attributes.
+def get_opt_query_data(request_parameters, policies):
     """
+        Fetch service and order specific details from the requestParameters field of a request.
+        :param request_parameters: A list of request parameters
+        :param policies: A set of policies
+        :return: A dictionary with service and order-specific attributes.
+        """
     req_param_dict = {}
-    if 'requestParameters' in req_json["placementInfo"]:
-        req_params = req_json["placementInfo"]["requestParameters"]
+    if request_parameters:
         for policy in policies:
             for queryProp in policy[list(policy.keys())[0]]['properties']['queryProperties']:
                 attr_val = queryProp['value'] if 'value' in queryProp and queryProp['value'] != "" \
-                    else dot_notation(req_params, queryProp['attribute_location'])
+                    else dot_notation(request_parameters, queryProp['attribute_location'])
                 if attr_val is not None:
                     req_param_dict.update({queryProp['attribute']: attr_val})
     return req_param_dict
 
-
 def gen_optimization_policy(vnf_list, optimization_policy):
     """Generate optimization policy details to pass to Conductor
     :param vnf_list: List of vnf's to used in placement request
@@ -254,20 +253,20 @@ def get_demand_properties(demand, policies):
     for policy_property in get_policy_properties(demand, policies):
         prop = dict(inventory_provider=policy_property['inventoryProvider'],
                     inventory_type=policy_property['inventoryType'],
-                    service_type=demand['serviceResourceId'],
-                    service_resource_id=demand['serviceResourceId'])
+                    service_type=demand.get('serviceResourceId', ''),
+                    service_resource_id=demand.get('serviceResourceId', ''))
 
         prop.update({'unique': policy_property['unique']} if 'unique' in policy_property and
                                                              policy_property['unique'] else {})
         prop['filtering_attributes'] = dict()
         prop['filtering_attributes'].update({'global-customer-id': policy_property['customerId']}
-                                  if policy_property['customerId'] else {})
+                                            if policy_property['customerId'] else {})
         prop['filtering_attributes'].update({'model-invariant-id': demand['resourceModelInfo']['modelInvariantId']}
-                                  if demand['resourceModelInfo']['modelInvariantId'] else {})
+                                            if demand['resourceModelInfo']['modelInvariantId'] else {})
         prop['filtering_attributes'].update({'model-version-id': demand['resourceModelInfo']['modelVersionId']}
-                                  if demand['resourceModelInfo']['modelVersionId'] else {})
+                                            if demand['resourceModelInfo']['modelVersionId'] else {})
         prop['filtering_attributes'].update({'equipment-role': policy_property['equipmentRole']}
-                                  if policy_property['equipmentRole'] else {})
+                                            if policy_property['equipmentRole'] else {})
 
         if policy_property.get('attributes'):
             for attr_key, attr_val in policy_property['attributes'].items():
@@ -302,14 +301,14 @@ def update_converted_attribute(attr_key, attr_val, properties, attribute_type):
         properties[attribute_type].update({key_value: attr_val})
 
 
-def gen_demands(req_json, vnf_policies):
+def gen_demands(demands, vnf_policies):
     """Generate list of demands based on request and VNF policies
-    :param req_json: Request object from the client (e.g. MSO)
+    :param demands: A List of demands
     :param vnf_policies: Policies associated with demand resources (e.g. from grouped_policies['vnfPolicy'])
     :return: list of demand parameters to populate the Conductor API call
     """
     demand_dictionary = {}
-    for demand in req_json['placementInfo']['placementDemands']:
+    for demand in demands:
         prop = get_demand_properties(demand, vnf_policies)
         if len(prop) > 0:
             demand_dictionary.update({demand['resourceModuleName']: prop})
diff --git a/test/conductor/test_conductor_calls.py b/test/conductor/test_conductor_calls.py
index 52e0367..0042ecb 100644
--- a/test/conductor/test_conductor_calls.py
+++ b/test/conductor/test_conductor_calls.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2018 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -17,7 +18,7 @@
 #
 import unittest
 
-from apps.placement.optimizers.conductor import conductor
+from osdf.adapters.conductor import conductor
 import osdf.config.loader as config_loader
 from osdf.utils.interfaces import json_from_file
 from osdf.utils.programming_utils import DotDict
@@ -41,12 +42,20 @@ class TestConductorCalls(unittest.TestCase):
     def test_request(self):
         req_json = json_from_file("./test/placement-tests/request.json")
         policies = pol.get_local_policies("test/policy-local-files/", self.lp)
-        conductor.request(req_json, self.osdf_config, policies)
+        req_info = req_json['requestInfo']
+        demands = req_json['placementInfo']['placementDemands']
+        request_parameters = req_json['placementInfo']['requestParameters']
+        service_info = req_json['serviceInfo']
+        conductor.request(req_info, demands, request_parameters, service_info, self.osdf_config, policies)
 
     def test_request_vfmod(self):
         req_json = json_from_file("./test/placement-tests/request_vfmod.json")
         policies = pol.get_local_policies("test/policy-local-files/", self.lp)
-        conductor.request(req_json, self.osdf_config, policies)
+        req_info = req_json['requestInfo']
+        demands = req_json['placementInfo']['placementDemands']
+        request_parameters = req_json['placementInfo']['requestParameters']
+        service_info = req_json['serviceInfo']
+        conductor.request(req_info, demands, request_parameters, service_info, self.osdf_config, policies)
 
 
 if __name__ == "__main__":
diff --git a/test/conductor/test_conductor_translation.py b/test/conductor/test_conductor_translation.py
index 3481b88..8b6c0a1 100644
--- a/test/conductor/test_conductor_translation.py
+++ b/test/conductor/test_conductor_translation.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2017-2018 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -18,7 +19,7 @@
 import unittest
 
 from osdf.adapters.local_data import local_policies
-from apps.placement.optimizers.conductor import translation as tr
+from osdf.adapters.conductor import translation as tr
 from osdf.utils.interfaces import json_from_file
 
 
@@ -46,14 +47,15 @@ class TestConductorTranslation(unittest.TestCase):
         # need to run this only on vnf policies
         vnf_policies = [x for x in self.policies if x[list(x.keys())[0]]["type"]
                         == "onap.policies.optimization.VnfPolicy"]
-        res = tr.gen_demands(self.request_json, vnf_policies)
+        res = tr.gen_demands(self.request_json['placementInfo']['placementDemands'], vnf_policies)
+
         assert res is not None
 
     def test_gen_vfmod_demands(self):
         # need to run this only on vnf policies
         vnf_policies = [x for x in self.policies if x[list(x.keys())[0]]["type"]
                         == "onap.policies.optimization.VnfPolicy"]
-        res = tr.gen_demands(self.request_vfmod_json, vnf_policies)
+        res = tr.gen_demands(self.request_vfmod_json['placementInfo']['placementDemands'], vnf_policies)
         assert res is not None
 
 
diff --git a/test/test_ConductorApiBuilder.py b/test/test_ConductorApiBuilder.py
index 07cb3bb..44c14d8 100644
--- a/test/test_ConductorApiBuilder.py
+++ b/test/test_ConductorApiBuilder.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2017-2018 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -19,7 +20,7 @@ import unittest
 import json
 import yaml
 
-from apps.placement.optimizers.conductor.api_builder import conductor_api_builder
+from osdf.adapters.conductor.api_builder import conductor_api_builder
 from osdf.adapters.local_data import local_policies
 from osdf.utils.interfaces import json_from_file
 
@@ -28,7 +29,7 @@ class TestConductorApiBuilder(unittest.TestCase):
 
     def setUp(self):
         self.main_dir = ""
-        self.conductor_api_template = self.main_dir + "apps/placement/templates/conductor_interface.json"
+        self.conductor_api_template = self.main_dir + "osdf/adapters/conductor/templates/conductor_interface.json"
         self.local_config_file = self.main_dir + "config/common_config.yaml"
         policy_data_path = self.main_dir + "test/policy-local-files"                 # "test/policy-local-files"
 
@@ -48,7 +49,12 @@ class TestConductorApiBuilder(unittest.TestCase):
         request_json = self.request_json
         policies = self.policies
         local_config = yaml.safe_load(open(self.local_config_file))
-        templ_string = conductor_api_builder(request_json, policies, local_config, self.conductor_api_template)
+        req_info = request_json['requestInfo']
+        demands = request_json['placementInfo']['placementDemands']
+        request_parameters = request_json['placementInfo']['requestParameters']
+        service_info = request_json['serviceInfo']
+        templ_string = conductor_api_builder(req_info, demands, request_parameters, service_info, policies,
+                                             local_config, self.conductor_api_template)
         templ_json = json.loads(templ_string)
         self.assertEqual(templ_json["name"], "yyy-yyy-yyyy")
 
@@ -56,7 +62,12 @@ class TestConductorApiBuilder(unittest.TestCase):
         request_json = self.request_vfmod_json
         policies = self.policies
         local_config = yaml.safe_load(open(self.local_config_file))
-        templ_string = conductor_api_builder(request_json, policies, local_config, self.conductor_api_template)
+        req_info = request_json['requestInfo']
+        demands = request_json['placementInfo']['placementDemands']
+        request_parameters = request_json['placementInfo']['requestParameters']
+        service_info = request_json['serviceInfo']
+        templ_string = conductor_api_builder(req_info, demands, request_parameters, service_info, policies,
+                                             local_config, self.conductor_api_template)
         templ_json = json.loads(templ_string)
         self.assertEqual(templ_json, self.request_placement_vfmod_json)
 
diff --git a/test/test_PolicyCalls.py b/test/test_PolicyCalls.py
index 0b17081..c41c487 100644
--- a/test/test_PolicyCalls.py
+++ b/test/test_PolicyCalls.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2017-2018 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -24,7 +25,7 @@ from osdf.adapters.policy import interface
 from osdf.utils.interfaces import RestClient, json_from_file
 import yaml
 from mock import patch
-from apps.placement.optimizers.conductor import translation
+from osdf.adapters.conductor import translation
 from osdf.operation.exceptions import BusinessException
 
 
@@ -101,13 +102,14 @@ class TestPolicyCalls(unittest.TestCase):
         # need to run this only on vnf policies
         vnf_policies = [x for x in self.policies if x[list(x.keys())[0]]["type"] ==
                         "onap.policies.optimization.VnfPolicy"]
-        gen_demands = translation.gen_demands(req_json, vnf_policies)
+        gen_demands = translation.gen_demands(req_json['placementInfo']['placementDemands'], vnf_policies)
+
         for action in req_json['placementInfo']['placementDemands']:
             actions_list.append(action['resourceModuleName'])
         for key2,value in gen_demands.items():
             gen_demands_list.append(key2)
         self.assertListEqual(gen_demands_list, actions_list, 'generated demands are not equal to the passed input'
-                                                        '[placementDemand][resourceModuleName] list')
+                             '[placementDemand][resourceModuleName] list')
 
     def test_local_policy_location(self):
         req_json = json_from_file("./test/placement-tests/request.json")
diff --git a/test/test_get_opt_query_data.py b/test/test_get_opt_query_data.py
index a7a4d88..8e6c324 100644
--- a/test/test_get_opt_query_data.py
+++ b/test/test_get_opt_query_data.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2017-2018 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -17,7 +18,7 @@
 #
 import unittest
 import json
-from apps.placement.optimizers.conductor.translation import get_opt_query_data
+from osdf.adapters.conductor.translation import get_opt_query_data
 
 
 class TestGetOptQueryData(unittest.TestCase):
@@ -30,7 +31,7 @@ class TestGetOptQueryData(unittest.TestCase):
         query_policy_data_file = ["QueryPolicy_vCPE.json"]
         request_json = json.loads(open(parameter_data_file).read())
         policies = [json.loads(open(policy_data_path + file).read()) for file in query_policy_data_file]
-        req_param_dict = get_opt_query_data(request_json, policies)
+        req_param_dict = get_opt_query_data(request_json['placementInfo']['requestParameters'], policies)
 
         self.assertTrue(req_param_dict is not None)
 
@@ -42,7 +43,7 @@ class TestGetOptQueryData(unittest.TestCase):
         query_policy_data_file = ["QueryPolicy_vFW_TD.json"]
         request_json = json.loads(open(parameter_data_file).read())
         policies = [json.loads(open(policy_data_path + file).read()) for file in query_policy_data_file]
-        req_param_dict = get_opt_query_data(request_json, policies)
+        req_param_dict = get_opt_query_data(request_json['placementInfo']['requestParameters'], policies)
 
         self.assertTrue(req_param_dict is not None)
 
diff --git a/test/test_process_placement_opt.py b/test/test_process_placement_opt.py
index 64b69a8..8a29100 100644
--- a/test/test_process_placement_opt.py
+++ b/test/test_process_placement_opt.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2017-2018 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -30,8 +31,10 @@ class TestProcessPlacementOpt(unittest.TestCase):
 
     def setUp(self):
         mock_req_accept_message = Response("Accepted Request", content_type='application/json; charset=utf-8')
-        self.patcher_req = patch('apps.placement.optimizers.conductor.conductor.request',
-                                 return_value={"solutionInfo": {"placementInfo": "dummy"}})
+        conductor_response_file = 'test/placement-tests/conductor_response.json'
+        conductor_response = json_from_file(conductor_response_file)
+        self.patcher_req = patch('osdf.adapters.conductor.conductor.request',
+                                 return_value=conductor_response)
         self.patcher_req_accept = patch('osdf.operation.responses.osdf_response_for_request_accept',
                                         return_value=mock_req_accept_message)
         self.patcher_callback = patch(
diff --git a/test/test_so_response_gen.py b/test/test_so_response_gen.py
index 6705cc8..1e6079b 100644
--- a/test/test_so_response_gen.py
+++ b/test/test_so_response_gen.py
@@ -1,5 +1,6 @@
 # -------------------------------------------------------------------------
 #   Copyright (c) 2017-2018 AT&T Intellectual Property
+#   Copyright (C) 2020 Wipro Limited.
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
 #   you may not use this file except in compliance with the License.
@@ -17,7 +18,7 @@
 #
 import unittest
 
-from apps.placement.optimizers.conductor.conductor import conductor_response_processor
+from apps.placement.optimizers.conductor.remote_opt_processor import conductor_response_processor
 from osdf.utils.interfaces import json_from_file
 from osdf.utils.interfaces import RestClient
 
@@ -35,4 +36,4 @@ class TestSoResponseGen(unittest.TestCase):
 
 
 if __name__ == "__main__":
-    unittest.main()
\ No newline at end of file
+    unittest.main()