What to do if the value already exists when inserting it into a list?

It can be rejected.

Create a new entry, if it does not exists. Update, if it already exists.

He is referring to the list below. The expected behavior here is that update to the parent and the child list.

It needs to be updated for NRCellDU, NRCellCU & GNBCUUPFunction

+--rw rRMPolicyMemberList* [idx]

        |        |  +--rw idx       uint32

        |        |  +--rw mcc       Mcc

        |        |  +--rw mnc       Mnc

        |        |  +--rw sNSSAI?   SNssai

cps-ran-schema-model

+--rw NearRTRIC* [idNearRTRIC]
+--rw idNearRTRIC string
+--rw attributes
| +--rw dnPrefix? DistinguishedName
| +--rw userLabel? string
| +--ro locationName? string
| +--ro gNBId? int64
| +--rw pLMNInfoList* [mcc mnc]
| | +--rw mcc Mcc
| | +--rw mnc Mnc
| | +--rw sNSSAIList* [sNssai]
| | +--rw sNssai string
| | +--rw status? string
| | +--rw configData* [configParameter]
| | +--rw configParameter string
| | +--rw configValue? int64

suggested CPS-action: Update DataNode with children (in this case a list) all children will be replaced! All unchanged data has to be provided too.

Note 1. SNSSAIList is a list contained within each element of PLMNInfo

Yes. Refer Section-3 for field mapping

Note 2. Please note this action replace all existing list element, it is NOT an add-to-element action

<Need to discuss>

Replace data node with descendants.

{
   "gNBCUName":"cucpserver1", 
   "gNBId":98763,
   "gNBIdLength":5,
   "pLMNId":"310-410",
   "nFType":"CUCP",
   "nearRTRICId":11,
   "cellCUList":[
       {
    "cellLocalId":103594000,
    "pLMNInfoList":[
        {
            "pLMNId":"310-200",
            "sNSSAI":{
                "sNSSAI":"001-00110",
                "status":"ACTIVE",
                 "configData":{
                    "maxNumberOfConns": 7000
            }
            }
        }
    ]
}
   ]
}

cps-ran-schema-model

+--rw GNBCUCPFunction* [idGNBCUCPFunction]
+--rw idGNBCUCPFunction string
+--rw attributes
| +--rw gNBId? int64
| +--rw gNBIdLength? int32
| +--rw gNBCUName? string
| +--rw pLMNId* [mcc mnc]
| +--rw mcc Mcc
| +--rw mnc Mnc
+--rw NRCellCU* [idNRCellCU]
+--rw idNRCellCU string
+--rw attributes
| +--rw cellLocalId? int32
| +--rw pLMNInfoList* [mcc mnc]
| | +--rw mcc Mcc
| | +--rw mnc Mnc
| | +--rw sNSSAIList* [sNssai]
| | +--rw sNssai string
| | +--rw status? string
| | +--rw configData* [configParameter]
| | +--rw configParameter string
| | +--rw configValue? int64

from CPS point of view this case is similar as previous case (#3), just a different target (parent)data node.

suggested CPS-action: Update DataNode with children (in this case a list) all children will be replaced! All unchanged data has to be provided too!

<Need to discuss>

Create a new entry, if it does not exists. Update, if it already exists.

{
   "gNBCUUPId":1111, 
   "gNBId":98763,
   "gNBIdLength":2,
   "pLMNId":"310-410",
   "resourceType":"DRB",
   "nearRTRICId":11,
    "pLMNInfoList":[
        {
            "pLMNId":"310-410",
            "sNSSAI":{
                "sNSSAI":"001-003",
                "status":"ACTIVE",
                "configData":{
                    "maxNumberOfConns": 3000
            }
            }
        }
    ]
}

cps-ran-schema-model

+--rw GNBCUUPFunction* [idGNBCUUPFunction]
| +--rw idGNBCUUPFunction string
| +--rw attributes
| +--ro gNBCUUPId? uint64
| +--rw gNBId? int64
| +--rw pLMNInfoList* [mcc mnc]
| +--rw mcc Mcc
| +--rw mnc Mnc
| +--rw sNSSAIList* [sNssai]
| +--rw sNssai string
| +--rw status? string
| +--rw configData* [configParameter]
| +--rw configParameter string
| +--rw configValue? int64

from CPS point of view this case is similar as previous 2 cases (#3, #4), just different target (parent)data node.

suggested CPS-action: Update DataNode with children (in this case a list) all children will be replaced! All unchanged data has to be provided too!

<Need to discuss>

Create a new entry, if it does not exists. Update, if it already exists.

{
   "gNBDUId":4, 
   "gNBId":98763,
   "gNBIdLength":5,
   "pLMNId":"310-410",
   "gNBDUName":"gnduserver4",
   "nFType":"DU",
   "nearRTRICId":22,
   "cellDUList":[
       {
    "cellLocalId":112951561,
    "operationalState":"ENABLED",
    "administrativeState":"UNLOCKED",
    "cellState":"ACTIVE",
    "nRPCI":12,
    "nRTAC":310,
    "resourceType":"PRB",
    "pLMNInfoList":[
        {
            "pLMNId":"310-410",            
            "sNSSAI":{
                "sNSSAI":"001-010000",
                "status":"ACTIVE",
                "configData":{
               "dLThptPerSlice": 9,
                "uLThptPerSlice": 10
                }
            }
        }
    ]
},
{
    "cellLocalId":112951562,
    "operationalState":"ENABLED",
    "administrativeState":"UNLOCKED",
    "cellState":"ACTIVE",
    "nRPCI":12,
    "nRTAC":310,
    "resourceType":"PRB",
    "pLMNInfoList":[
        {
            "pLMNId":"310-410",            
            "sNSSAI":{
                "sNSSAI":"001-010000",
                "status":"ACTIVE",
                "configData":{
               "dLThptPerSlice": 9,
                "uLThptPerSlice": 10
                }
            }
        }
    ]
},
{
    "cellLocalId":112951568,
    "operationalState":"ENABLED",
    "administrativeState":"UNLOCKED",
    "cellState":"ACTIVE",
    "nRPCI":12,
    "nRTAC":310,
    "resourceType":"PRB",
    "pLMNInfoList":[
        {
            "pLMNId":"310-410",            
            "sNSSAI":{
                "sNSSAI":"001-010000",
                "status":"ACTIVE",
                "configData":{
               "dLThptPerSlice": 9,
                "uLThptPerSlice": 10
                }
            }
        }
    ]
}
   ]
}

cps-ran-schema-model

+--rw GNBDUFunction* [idGNBDUFunction]
| +--rw idGNBDUFunction string
| +--rw attributes
| | +--ro gNBId? int64
| | +--rw gNBIdLength? int32
| | +--rw gNBDUId? int64
| | +--rw gNBDUName? string
| +--rw NRCellDU* [idNRCellDU]
| +--rw idNRCellDU string
| +--rw attributes
| +--rw cellLocalId? int32
| +--rw pLMNInfoList* [mcc mnc]
| | +--rw mcc Mcc
| | +--rw mnc Mnc
| | +--rw sNSSAIList* [sNssai]
| | +--rw sNssai string
| | +--rw status? string
| | +--rw configData* [configParameter]
| | +--rw configParameter string
| | +--rw configValue? int64
| +--rw nRPCI? int32
| +--rw nRTAC? Tac

from CPS point of view this case is similar as previous 2 cases (#3, #4, #5), just different target (parent)data node.

suggested CPS-action: Update DataNode with children (in this case a list) all children will be replaced! All unchanged data has to be provided too!

<Need to discuss>

Create a new entry, if it does not exists. Update, if it already exists.

Will require a new method in cps core to add something to a list.

{
    "rrmPolicyID":1,
    "resourceID":"113025289",
    "resourceType":"PRB",
    "sliceType":"eMBB",
    "quotaType":"STRICT",
    "rRMPolicyMaxRatio":0,
    "rRMPolicyMinRatio":10,
    "rRMPolicyDedicatedRatio":0,
    "rRMPolicyMemberList":[
        {
            "pLMNId":"310-400",
            "sNSSAI":"001-010000"
        }
    ]
}

cps-ran-schema-model

+--rw RRMPolicyRatio* [id]
| | +--rw id string
| | +--rw attributes
| | +--rw resourceType? string
| | +--rw rRMPolicyMemberList* [idx]
| | | +--rw idx uint32
| | | +--rw mcc Mcc
| | | +--rw mnc Mnc
| | | +--rw sNSSAI? SNssai
| | +--rw quotaType? QuotaType
| | +--rw rRMPolicyMaxRatio? uint8
| | +--rw rRMPolicyMinRatio? uint8
| | +--rw rRMPolicyDedicatedRatio? uint8

Currently, CPS has no option to replace an entire list without updating its parent which seems what is required here.

<Need to discuss>

Update the parent and the child list for rRMPolicyMemberList - will update multiple instances of RRMPolicyRatio

{

cps-ran-inventory

+--rw ran-inventory
+--rw ran-slices* [rannfnssiid]
+--rw rannfnssiid string
+--rw sliceProfilesList* [sliceProfileId]
| +--rw sliceProfileId string
| +--rw sNSSAI? string
| +--rw maxNumberofUEs? int64
| +--rw latency? int64
| +--rw uLThptPerSlice? int64
| +--rw dLThptPerSlice? int64
| +--rw maxNumberofConns? int64
| +--rw uEMobilityLevel? string
| +--rw resourceSharingLevel? string
| +--rw coverageAreaList* string
| +--rw pLMNIdList* [mcc mnc]
| +--rw mcc Mcc
| +--rw mnc Mnc
+--rw subnetStatus? string
+--rw nsstid? string
+--rw slicetype? string
+--rw isshareable? string

little difference can be found between the request payload and the yang model.  Yang model is the final one.

For CPS this seems like populating the whole data tree for a given model in one go. i.e. replace all existing data

Modified the YANG model to support storing a list of Slices

Replace datanode and children.