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URI
Mandatory or Optional
<OP>the HTTP methodMandatory
ncmp /the ncmp root resourceMandatory
<v{v-number}>version of the ncmp interface <path> is the target resource URI <query> is the query parameter listMandatory
ch/<cm-handle>unique (string) identifier of a yang tree instance.OptionalMandatory
<data|operations|{ncmp-action}>request category - yang data, rpc operation or a (non-modelled) ncmp api action. this could be data, operations or ncmp-action (e.g. 'sync-data')Mandatory
ds/{datastore}optional datastoreOptionalMandatory
<resource-path>the path expression identifying the resource that is being accessed by the operation. If this field is not present, then the target resource is the API itself.Optional
<query>

the set of parameters associated with the RESTCONF message; see Section 3.4 of [RFC3986]. RESTCONF parameters have the familiar form of "name=value" pairs. Most query parameters are optional to implement by the server and optional to use by the client. Each optional query parameter is identified by a URI

Optional

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Excerpt

Datastore, Paths and Format Combinations for Read Operations


StateInputBehaviorDataNotes
#Data-Sync Datastore parameter

Expected Resource-Path

format

Accept-Header

Fields

(filter)

Data Source

Included DataNodes
(config)

1OnNot SpecifiedcpsPathapplication/yang-data+jsonN/ANot supportedN/AN/A
2OnNot SpecifiedcpsPathapplication/jsonN/ANot supportedN/AN/A
3Off

Not Specified

cpsPathapplication/yang-data+json

N/A

Not supported

N/AN/A


4OffNot SpecifiedcpsPathN/AN/ANot supportedN/AN/Athere are NO DataNode objects in CPS to output as JSON)
5OffNot Specifiedother then cpsPathN/AN/ANot supportedN/AN/ANot supported Since NCMP can only convert cpsPaths
6On | Offncmp/passthrough-operational

NCMP does not parse

NCMP does not parsedepends on DMI-Plugin
(supported in ONAP)

Resolve DMI plugin

Forward request to plugin

Output received response
DMI-Pluginconfig +
non-config

The DMI plugin may error if the RP or accept header are not supported.

The DMI plugin may forward the request without processing too.
7On | Offncmp/passthrough-runningNCMP does not parseNCMP does not parsedepends on DMI-Plugin
(supported in ONAP)

Resolve DMI plugin

Forward request to plugin

Output received response
DMI-Pluginconfig-only
8Onncmp/operationalcpsPathapplication/yang-data+jsonNot supported in Istanbul releases

Read from cache

output: application/yang-data+json

CPS-Coreconfig +
non-config
NCMP/CPS-Core needs to remove DataNode wrapping

9Onncmp/operationalcpsPathapplication/jsonNot supported in Istanbul releases

Read from cache

output: application/json

CPS-Coreconfig +
non-config

10Offncmp/operationalcpsPathapplication/yang-data+json

to be determined in spike, see issue #28


Resolve DMI plugin

Convert cpsPath to RESTConfPath

Forward request to plugin | Read from DMI plugin

Output application/yang-data+json

DMI-Plugin

config +
non-config


11On | Offncmp/runningcpsPathapplication/yang-data+jsonto be determined in spike, see issue #28

Resolve DMI plugin

Convert cpsPath to RESTConfPath

Forward request to plugin | Read from DMI plugin

Output application/yang-data+json

DMI-Pluginconfig-only


Read Example

Code Block
languagexml
titleRead with fields
collapsetrue
{ncmp-root}/ncmp/v1/ch/<cm-handle>/data/ds/<datastore>/{data-resource-identifier}?fields={fields-expression}


URI :{ncmp-root}/ncmp/v1/ch/node123/data/ds/ncmp-datastores:operational/TopElement[@id=1]/SomeFunction[@id=1]?fields=cell-model:Cell/attributes(attr1;attr2)
 
Header :
      Accept : application/yang-data+json
 
Response :
      200 OK
{
  "function-model:SomeFunction": [
    {
      "id": "1",
      "cell-model:Cell": [
        {
          "id": "Cell-001",
          "attributes": {
            "attr1": "value1",
            "attr2": "value2"
          }
        },
        {
          "id": "Cell-002",
          "attributes": {
            "attr3": "value3",
            "attr4": "value4"
          }
        }
      ]
    }
  ]
}



Works Items for above.

#DescriptionComponentEnables
1Forward request from NCMP to CPS-CoreNCMP8,9
2Forward request from NCMP to DMI-PluginNCMP6,7
3Convert json (dataNode) to yang-data+jsonCPS-Core/NCMP8
4Convert cpsPath to RESTConf PathNCMP10,11
5Enhance &fields parameter where neededNCMP10,11+fields option
6NOT SupportedN/A1,2,3,4,5

Datastore, Paths and Format Combinations for Write Operations

  • Write operations are only supported on the ncmp-datastores:running and ncmp-datastores:passthrough-running datastores
  • The Data Target for all write operation is DMI-Plugin
  • Write operations are only supported for config=true data
  • Fields and similar parameters are not supported for write operations

StateInputBehaviorNotes
#Data-Sync OperationDatastore parameter

Expected Resource-Path

format

Content-Type
1On | OffCreatencmp/passthrough-running

NCMP does not parse

NCMP does not parse (needs to be valid JSON)

Resolve DMI plugin

Forward request to plugin

Output received response (success or failure)

The DMI plugin may error if the RP or content type are not supported.

The DMI plugin may forward the request without processing too.
2On | OffUpdatencmp/passthrough-running

NCMP does not parse

NCMP does not parse (needs to be valid JSON)

Resolve DMI plugin

Forward request to plugin

Output received response (success or failure)

The DMI plugin may error if the RP or content type are not supported.

The DMI plugin may forward the request without processing too.
3On | OffDeletencmp/passthrough-running

NCMP does not parse

N/A

Resolve DMI plugin

Forward request to plugin

Output received response (success or failure)

The DMI plugin may error if the RP or content type are not supported.

The DMI plugin may forward the request without processing too.
4On | OffPatchncmp/passthrough-running

NCMP does not parse

NCMP does not parse (needs to be valid JSON)

Resolve DMI plugin

Forward request to plugin

Output received response (success or failure)

The DMI plugin may error if the RP or content type are not supported.

The DMI plugin may forward the request without processing too.
5On | OffCreatencmp/runningcpsPathapplication/yang-data+json

Resolve DMI plugin

Convert cpsPath to RESTConfPath

Forward request to plugin

Output received response (success or failure)


6On | OffUpdatencmp/runningcpsPathapplication/yang-data+json

Resolve DMI plugin

Convert cpsPath to RESTConfPath

Forward request to plugin

Output received response (success or failure)


7On | OffDeletencmp/runningcpsPathN/A

Resolve DMI plugin

Convert cpsPath to RESTConfPath

Forward request to plugin

Output received response (success or failure)


8On | OffPatchncmp/runningcpsPath

application/yang-data+json

(*plain patch)

Resolve DMI plugin

Convert cpsPath to RESTConfPath

Forward request to plugin

Output received response (success or failure)


9On | OffPatchncmp/runningcpsPathapplication/yang-patch+json

Resolve DMI plugin

Convert cpsPath to RESTConfPath

Forward request to plugin

Output received response (success or failure)



Write Example

Code Block
titleWrite Example


...