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Interfaces

1. NST selection Request (from SO)
   1. Input: Service profiler parameters.

      {

      "requestInfo":{

      "transactionId":"c86b3019-39f4-4cd3-b847-b22afe9f36dc",

      "requestId":"c86b3019-39f4-4cd3-b847-b22afe9f36dc",

      "sourceId":"so",

      "timeout":600,

      "callbackUrl":"http://0.0.0.0:9000/callback/"

      },

      "serviceProfile":{

      "serviceProfileParameters":{

      "latency":20,

      "areaTrafficCapDL" : 10000,

      "coverageAreaTAList" : "India"
      }

      }

      }

2. Fetch Optimization policies
   1. vnfPolicy - it will identify the inventoryProvider and inventoryType - Forms demand policy.
   2. Attribute policy - for storing the serviceprofileparameters and its value as attribute - value pair- Constraint policy.
   3. QueryPolicy -  Its used to query the serviceprofileparameters from the input so that it can be added as a value to the attribute.
3. NST selection request - HAS 
   1. Demand: NST
   2. Constraint: Attribute policy for matching whether nst templates have these attributes.
4. Fetch NST metadata from AAI
   
   1. Output: List of all NSTs metadata 
   2. Sample Request:

      curl --user AAI:AAI -X GET -H "X-FromAppId:AAI" -H "X-TransactionId:get_aai_subscr" -H "Accept:application/json" -H "Content-Type:application/json" -k "https://10.31.4.27:30233/aai/v21/service-design-and-creation/models?model-role=NST&depth=2"

   3. Sample Response: 

      Code Block

      { "model":[ { "model-invariant-id":"50cd1233-dbec-4a46-a24f-46345a23635e", "model-type":"service", "model-role":"NST", "resource-version":"1607656942756", "model-vers":{ "model-ver":[ { "model-version-id":"bac7e4cb-c27e-48a8-999e-87531f192a1d", "model-name":"EmbbNST", "model-version":"1.0", "model-description":"TestNst", "resource-version":"1607656942756", "model-elements":{ "model-element":[ { "model-element-uuid":"23ecdf3f-f3fa-4715-8a86-65dc33c60cd2", "new-data-del-flag":"T", "cardinality":"unbounded", "resource-version":"1607656942756", "relationship-list":{ "relationship":[ { "related-to":"model-ver", "relationship-label":"org.onap.relationships.inventory.IsA", "related-link":"/aai/v21/service-design-and-creation/models/model/82194af1-3c2c-485a-8f44-420e22a9eaa4/model-vers/model-ver/46b92144-923a-4d20-b85a-3cbd847668a9", "relationship-data":[ { "relationship-key":"model.model-invariant-id", "relationship-value":"82194af1-3c2c-485a-8f44-420e22a9eaa4" }, { "relationship-key":"model-ver.model-version-id", "relationship-value":"46b92144-923a-4d20-b85a-3cbd847668a9" } ], "related-to-property":[ { "property-key":"model-ver.model-name", "property-value":"service-instance" } ] } ] } } ] } } ] } } ] }

      
      

5. Fetch NST candidate from SDC
   1. Input: NST metadata
   2. Sample Request: 

      curl -X GET -H "authorization: Basic YWFpOktwOGJKNFNYc3pNMFdYbGhhazNlSGxjc2UyZ0F3ODR2YW9HR21KdlV5MlU=" -H "x-ecomp-instanceid:AAI" -H 'Accept:application/octet-stream' -k https://10.31.4.27:30204/sdc/v1/catalog/services/bac7e4cb-c27e-48a8-999e-87531f192a1d/toscaModel

   3. Output: List of NST candidates matching the metadata
   4. Sample Response: 

      View file
      name nst.csar height 250

6. Run optimization  - taking attribute constraint, the candidates are filtered out matching the attributes.
7. Solution list is formed
   
   1. Solution List. Solution object have nst candidates matching the input service profile params.

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