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Comparison of current CPS core output to NCMP passthrough operation output

The following details were used to compare and analyze the current CPS core output to NCMP passthrough operation output

Model	bookstore.yang
Data	bookstore.json
CPS core endpoint	/v1/dataspaces/{dataspace-name}/anchors/{anchor-name}/node
NCMP Passthrough operation	/v1/ch/{cm-handle}/data/ds/ncmp-datastore:passthrough-running

Scenario 1: XPath is pointing to root i.e. '/'

NCMP Passthrough operation output

CPS Core output

Response

Code Block

collapse	true

{
  "bookstore": {
    "bookstore-name": "Chapters",
    "categories": [
      {
        "code": "01",
        "name": "SciFi",
        "books": [
          {
            "lang": "en",
            "price": 895,
            "title": "Feersum Endjinn",
            "authors": [
              "Iain M. Banks"
            ],
            "pub_year": 1994
          },
          {
            "lang": "en",
            "price": 1099,
            "title": "Far Horizons",
            "authors": [
              "david Brin",
              "Ursula K. Le Guin",
              "Rober Silverberg",
              "Orson Scott Card",
              "Greg Bear",
              "Joe Haldeman",
              "Dan Simmons"
            ],
            "pub_year": 1999
          }
        ]
      },
      {
        "code": "02",
        "name": "kids",
        "books": [
          {
            "lang": "en",
            "price": 699,
            "title": "The Golden Compass",
            "authors": [
              "Philip Pullman"
            ],
            "pub_year": 1995
          }
        ]
      }
    ]
  }
}

Scenario 2: Container XPath i.e '/bookstore'

NCMP Passthrough operation output

CPS Core output

Response

Code Block

collapse	true

Code Block

collapse	true

{
  "bookstore": {
    "bookstore-name": "Chapters",
    "categories": [
      {
        "code": "01",
        "name": "SciFi",
        "books": [
          {
            "lang": "en",
            "price": 1099,
            "title": "Far Horizons",
            "authors": [
              "david Brin",
              "Ursula K. Le Guin",
              "Rober Silverberg",
              "Orson Scott Card",
              "Greg Bear",
              "Joe Haldeman",
              "Dan Simmons"
            ],
            "pub_year": 1999
          },
          {
            "lang": "en",
            "price": 895,
            "title": "Feersum Endjinn",
            "authors": [
              "Iain M. Banks"
            ],
            "pub_year": 1994
          }
        ]
      },
      {
        "code": "02",
        "name": "kids",
        "books": [
          {
            "lang": "en",
            "price": 699,
            "title": "The Golden Compass",
            "authors": [
              "Philip Pullman"
            ],
            "pub_year": 1995
          }
        ]
      }
    ]
  }
}

Scenario 3: List attributes XPath

'/bookstore/categories[@code='02']'

'/ncmp/v1/ch/PNFDemo/data/ds/ncmp-datastore:passthrough-running?resourceIdentifier=stores:bookstore/categories=02'

NCMP Passthrough output

CPS Core output

Response

Code Block

collapse	true

{
    "stores:categories": [
        {
            "code": "02",
            "books": [
                {
                    "title": "A Horror book",
                    "price": "2000",
                    "pub_year": 2003,
                    "lang": "English",
                    "authors": [
                        "Joe & Rahul"
                    ]
                },
                {
                    "title": "A New book in existing category",
                    "price": "2000",
                    "pub_year": 2003,
                    "lang": "English",
                    "authors": [
                        "Joe & Rahul"
                    ]
                }
            ],
            "name": "Horror"
        }
    ]
}

Code Block

collapse	true

{
  "categories": {
    "code": "02",
    "name": "kids",
    "books": [
      {
        "lang": "en",
        "price": 699,
        "title": "The Golden Compass",
        "authors": [
          "Philip Pullman"
        ],
        "pub_year": 1995
      }
    ]
  }
}

Modifying CPS Core output

Parsing a model prefix

Building the data node

Open Issues

Issue	Description	Resolution
Child is in a different module	If the child is in a different module should it have a prefix
Output starts with non-root element	If the output starts with non-root element should it have a prefix
Backward incompatibility	Discuss backward incompatibility with stakeholders WiPro (E2E Slicing) Ericsson Bell (Bruno has confirmed that they are not impacted ?) Can YangTools parse it? if YangTools can parse it then this is not incompatible
Is this LEGAL YANG dataCan YangTools parse it?

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Old Version 2

New Version 3

Key

Comparison of current CPS core output to NCMP passthrough operation output

Modifying CPS Core output

Parsing a model prefix

Building the data node

Open Issues