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authorShankaranarayanan Puzhavakath Narayanan <snarayanan@research.att.com>2018-01-12 04:45:58 +0000
committerGerrit Code Review <gerrit@onap.org>2018-01-12 04:45:58 +0000
commite3e5575a06e3c02c8adecbeeb153d4a6a7f2fda4 (patch)
tree2e7b15f927bc112377cf73ff7879dfb564ae6b8f /optimizers/placementopt/conductor/translation.py
parente91ad0d899121fb190391865422ea6424ffc29ca (diff)
parent524573f21dfc3d88b1512850d52da7e5b545cf9d (diff)
Merge "Seed code for OSDF placement adapter"
Diffstat (limited to 'optimizers/placementopt/conductor/translation.py')
-rw-r--r--optimizers/placementopt/conductor/translation.py215
1 files changed, 215 insertions, 0 deletions
diff --git a/optimizers/placementopt/conductor/translation.py b/optimizers/placementopt/conductor/translation.py
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+# -------------------------------------------------------------------------
+# 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 osdf.utils.data_conversion import text_to_symbol
+from osdf.utils import data_mapping
+
+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
+ :param optimization_policy: optimization policy information provided in the incoming request
+ :return: List of optimization policies in a format required by Conductor
+ """
+ optimization_policy_list = []
+ for policy in optimization_policy:
+ content = policy['content']
+ parameter_list = []
+
+ for attr in content['objectiveParameter']['parameterAttributes']:
+ parameter = attr['parameter'] if attr['parameter'] == "cloud_version" else attr['parameter']+"_between"
+ for res in attr['resource']:
+ vnf = get_matching_vnf(res, vnf_list)
+ value = [vnf] if attr['parameter'] == "cloud_version" else [attr['customerLocationInfo'], vnf]
+ parameter_list.append({
+ attr['operator']: [attr['weight'], {parameter: value}]
+ })
+
+ optimization_policy_list.append({
+ content['objective']: {content['objectiveParameter']['operator']: parameter_list }
+ })
+ return optimization_policy_list
+
+
+def get_matching_vnf(resource, vnf_list):
+
+ for vnf in vnf_list:
+ if resource in vnf:
+ return vnf
+ return resource
+
+
+def get_matching_vnfs(resources, vnf_list, match_type="intersection"):
+ """Get a list of matching VNFs from the list of resources
+ :param resources:
+ :param vnf_list: List of vnf's to used in placement request
+ :param match_type: "intersection" or "all" or "any" (any => send all_vnfs if there is any intersection)
+ :return: List of matching VNFs
+ """
+ common_vnfs = []
+ for vnf in vnf_list:
+ for resource in resources:
+ if resource in vnf:
+ common_vnfs.append(vnf)
+ if match_type == "intersection": # specifically requested intersection
+ return common_vnfs
+ elif common_vnfs or match_type == "all": # ("any" and common) OR "all"
+ return resources
+ return None
+
+
+def gen_policy_instance(vnf_list, resource_policy, match_type="intersection", rtype=None):
+ """Generate a list of policies
+ :param vnf_list: List of vnf's to used in placement request
+ :param resource_policy: policy for this specific resource
+ :param match_type: How to match the vnf_names with the vnf_list (intersection or "any")
+ intersection => return intersection; "any" implies return all vnf_names if intersection is not null
+ :param rtype: resource type (e.g. resourceRegionProperty or resourceInstanceProperty)
+ None => no controller information added to the policy specification to Conductor
+ :return: resource policy list in a format required by Conductor
+ """
+ resource_policy_list = []
+ related_policies = []
+ for policy in resource_policy:
+ pc = policy['content']
+ demands = get_matching_vnfs(pc['resourceInstanceType'], vnf_list, match_type=match_type)
+ resource = {pc['identity']: {'type': pc['type'], 'demands': demands}}
+
+ if rtype:
+ resource[pc['identity']]['properties'] = {'controller': pc[rtype]['controller'],
+ 'request': json.loads(pc[rtype]['request'])}
+ if demands and len(demands) != 0:
+ resource_policy_list.append(resource)
+ related_policies.append(policy)
+ return resource_policy_list, related_policies
+
+
+def gen_resource_instance_policy(vnf_list, resource_instance_policy):
+ """Get policies governing resource instances in order to populate the Conductor API call"""
+ cur_policies, _ = gen_policy_instance(vnf_list, resource_instance_policy, rtype='resourceInstanceProperty')
+ return cur_policies
+
+
+def gen_resource_region_policy(vnf_list, resource_region_policy):
+ """Get policies governing resource region in order to populate the Conductor API call"""
+ cur_policies, _ = gen_policy_instance(vnf_list, resource_region_policy, rtype='resourceRegionProperty')
+ return cur_policies
+
+
+def gen_inventory_group_policy(vnf_list, inventory_group_policy):
+ """Get policies governing inventory group in order to populate the Conductor API call"""
+ cur_policies, _ = gen_policy_instance(vnf_list, inventory_group_policy, rtype=None)
+ return cur_policies
+
+
+def gen_reservation_policy(vnf_list, reservation_policy):
+ """Get policies governing resource instances in order to populate the Conductor API call"""
+ cur_policies, _ = gen_policy_instance(vnf_list, reservation_policy, rtype='instanceReservationProperty')
+ return cur_policies
+
+
+def gen_distance_to_location_policy(vnf_list, distance_to_location_policy):
+ """Get policies governing distance-to-location for VNFs in order to populate the Conductor API call"""
+ cur_policies, related_policies = gen_policy_instance(vnf_list, distance_to_location_policy, rtype=None)
+ for p_new, p_main in zip(cur_policies, related_policies): # add additional fields to each policy
+ properties = p_main['content']['distanceToLocationProperty']
+ pcp_d = properties['distanceCondition']
+ p_new[p_main['content']['identity']]['properties'] = {
+ 'distance': text_to_symbol[pcp_d['operator']] + " " + pcp_d['value'].lower(),
+ 'location': properties['locationInfo']
+ }
+ return cur_policies
+
+
+def gen_attribute_policy(vnf_list, attribute_policy):
+ """Get policies governing attributes of VNFs in order to populate the Conductor API call"""
+ cur_policies, related_policies = gen_policy_instance(vnf_list, attribute_policy, rtype=None)
+ for p_new, p_main in zip(cur_policies, related_policies): # add additional fields to each policy
+ properties = p_main['content']['cloudAttributeProperty']
+ p_new[p_main['content']['identity']]['properties'] = {
+ 'evaluate': {
+ 'hypervisor': properties.get('hypervisor', ''),
+ 'cloud_version': properties.get('cloudVersion', ''),
+ 'cloud_type': properties.get('cloudType', ''),
+ 'dataplane': properties.get('dataPlane', ''),
+ 'network_roles': properties.get('networkRoles', ''),
+ 'complex': properties.get('complex', ''),
+ 'state': properties.get('state', ''),
+ 'country': properties.get('country', ''),
+ 'geo_region': properties.get('geoRegion', ''),
+ 'exclusivity_groups': properties.get('exclusivityGroups', ''),
+ 'replication_role': properties.get('replicationRole', '')
+ }
+ }
+ return cur_policies
+
+
+def gen_zone_policy(vnf_list, zone_policy):
+ """Get zone policies in order to populate the Conductor API call"""
+ cur_policies, related_policies = gen_policy_instance(vnf_list, zone_policy, rtype=None)
+ for p_new, p_main in zip(cur_policies, related_policies): # add additional fields to each policy
+ pmz = p_main['content']['zoneProperty']
+ p_new[p_main['content']['identity']]['properties'] = {'category': pmz['category'], 'qualifier': pmz['qualifier']}
+ return cur_policies
+
+
+def get_demand_properties(demand, policies):
+ """Get list demand properties objects (named tuples) from policy"""
+ def _get_candidates(candidate_info):
+ return [dict(inventory_type=x['candidateType'], candidate_id=x['candidates']) for x in candidate_info]
+ properties = []
+ for policy in policies:
+ for resourceInstanceType in policy['content']['resourceInstanceType']:
+ if resourceInstanceType in demand['resourceModuleName']:
+ for x in policy['content']['property']:
+ property = dict(inventory_provider=x['inventoryProvider'],
+ inventory_type=x['inventoryType'],
+ service_resource_id=demand['serviceResourceId'])
+ if 'attributes' in x:
+ attributes = {}
+ for k,v in x['attributes'].items():
+ key=data_mapping.convert(k)
+ attributes[key] = v
+ if(key=="model-invariant-id"):
+ attributes[key]=demand['resourceModelInfo']['modelInvariantId']
+ elif(key=="model-version-id"):
+ attributes[key]=demand['resourceModelInfo']['modelVersionId']
+ property.update({"attributes": attributes})
+ if x['inventoryType'] == "cloud":
+ property['region'] = {'get_param': "CHOSEN_REGION"}
+ if 'exclusionCandidateInfo' in demand:
+ property['excluded_candidates'] = _get_candidates(demand['exclusionCandidateInfo'])
+ if 'requiredCandidateInfo' in demand:
+ property['required_candidates'] = _get_candidates(demand['requiredCandidateInfo'])
+ properties.append(property)
+ if len(properties) == 0:
+ properties.append(dict(customer_id="", service_type="", inventory_provider="", inventory_type=""))
+ return properties
+
+
+def gen_demands(req_json, vnf_policies):
+ """Generate list of demands based on request and VNF policies
+ :param req_json: Request object from the client (e.g. MSO)
+ :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 placementDemand in req_json['placementDemand']:
+ demand_dictionary.update({placementDemand['resourceModuleName']: get_demand_properties(placementDemand, vnf_policies)})
+
+ return demand_dictionary