SAP Android SDK : Create deep entity from json deserialization

[yohann_weberfr]

Hi experts,

I'm working on Android with the SAP Android SDK 7.0.0

I'm trying to create a deep entity request from a JSON using the documentation (JSON Serialisation) with Online odata.

here my code :

val query = FromJSON.entity(newEntity).from(Z_API_SERVICE_ORDER_SRV_EntitiesMetadata.EntitySets.headerSet)
 query.entitySet =
     Z_API_SERVICE_ORDER_SRV_EntitiesMetadata.EntitySets.headerSet
 query.entityType =
     Z_API_SERVICE_ORDER_SRV_EntitiesMetadata.EntityTypes.header

val headerEntity =
     z_API_SERVICE_ORDER_SRV_Entities.executeQuery(query).requiredEntity

 
 return suspendCoroutine { continuation ->
     z_API_SERVICE_ORDER_SRV_Entities.createEntityAsync(headerEntity,
         {
             val operationSuccess: Repository.SuspendOperationResult =
                 Repository.SuspendOperationResult.SuspendOperationSuccess(
                     headerEntity
                 )
             continuation.resume(operationSuccess)
         },
         { error ->
             LOGGER.debug("Entity creation failed:", error)
             val operationFail =
                 Repository.SuspendOperationResult.SuspendOperationFail(error)
             continuation.resume(operationFail)
         })
 }

My JSON structure model is same like my entities model structure :

{
   "@odata.editLink":"",
   "@odata.id":"",
   "@odata.readLink":"",
   "CatDesc":"",
   "Category":"",
   "Description":"",
   "PurchaseOrderByCustomer":"",
   "RejectStatus":"",
   "RejectStatusLong":"",
   "RejectStatusShort":"",
   "RequestedServiceStartDate":"",
   "Schema":"",
   "ServiceObjectType":"",
   "ServiceOrder":"",
   "ServiceOrderType":"",
   "SoldToParty":"",
   "Status":"",
   "Attachments":[
      {
         "@odata.editLink":"",
         "@odata.id":"",
         "@odata.readLink":"",
         "DocNumber":"",
         "DocType":"",
         "DocumentUrl":"",
         "FileName":"",
         "ServiceOrder":""
      }
   ],
   "Customers":[
      {
         "@odata.editLink":"",
         "@odata.id":"",
         "@odata.readLink":"",
         "City":"",
         "Country":"",
         "Customernumber":"",
         "Email":"",
         "FirstName":"",
         "HouseNo":"",
         "LastName":"",
         "PostalCode":"",
         "Region":"",
         "ServiceOrder":"",
         "StrSuppl3":"",
         "Street":"",
         "TelNumber":"",
         "Title":""
      }
   ],
   "Items":[
      {
         "@odata.editLink":"",
         "@odata.id":"",
         "@odata.readLink":"",
         "ItemCategory":"",
         "ItemDescription":"",
         "ItemQty":,
         "ItemSchema":"",
         "ItemStatus":"",
         "ItemType":"",
         "OrderItem":"",
         "PartnerProduct":"",
         "Product":"",
         "ServiceObjectType":"",
         "ServiceOrder":""
      }
   ],
   "Partners":[
      {
         "@odata.editLink":"",
         "@odata.id":"",
         "@odata.readLink":"",
         "AddrNp":"",
         "AddrNr":"",
         "City":"",
         "Country":"",
         "FirstName":"",
         "HouseNo":"",
         "LastName":"",
         "PartnerFct":"",
         "PartnerNumber":"",
         "PostlCod1":"",
         "Region":"",
         "ServiceObjectType":"",
         "ServiceOrder":"",
         "StrSuppl3":"",
         "Street":""
      }
   ],
   "Pricing":[
      {
         "@odata.editLink":"",
         "@odata.id":"",
         "@odata.readLink":"",
         "Amount":,
         "Application":"",
         "ConditionType":"",
         "Counter":"",
         "Currency":"",
         "OrderItem":"",
         "PricingCondition":"",
         "PricingItem":"",
         "ServiceOrder":"",
         "StepNumber":""
      }
   ]
}

but when i'm tracing my request in my SAP on-premise system, I have only the "first level", the header data. None of my sub-entity was transferred. You can see the result :

{
"__metadata" : {
"type" : "Z_API_SERVICE_ORDER_SRV.Header"
},
"CatDesc" : "",
"Category" : "",
"Description" : "",
"IrisCode" : "",
"Origin" : "ZR2",
"PurchaseOrderByCustomer" : "dummyPO",
"RejectStatus" : "",
"RejectStatusLong" : "",
"RejectStatusShort" : "",
"RequestedServiceStartDate" : "",
"Schema" : "",
"ServiceObjectType" : "Z001",
"ServiceOrder" : "",
"ServiceOrderType" : "",
"SoldToParty" : "dummy01",
"Status" : ""
}

I've expected to have my subentities itmes, pricing, attachments etc.

In debug, I can see that my entity have this data on

For example, the code below will create a good json payload :

val headerEntity = Header().apply {
            serviceObjectType = "Z001"
            origin = "ZR2"
            soldToParty = "dummy01"
            purchaseOrderByCustomer = "dummyPO"
    }

    headerEntity.partners = mutableListOf(Partner().apply{
        partnerFct = "Y0000001"
        partnerNumber = "2000209"
    })
    return suspendCoroutine { continuation ->
        z_API_SERVICE_ORDER_SRV_Entities.createEntityAsync(headerEntity,
            {
                val operationSuccess: Repository.SuspendOperationResult =
                    Repository.SuspendOperationResult.SuspendOperationSuccess(
                        headerEntity
                    )
                continuation.resume(operationSuccess)
            },
            { error ->
                LOGGER.debug("Entity creation failed:", error)
                val operationFail =
                    Repository.SuspendOperationResult.SuspendOperationFail(error)
                continuation.resume(operationFail)
            })
    }
}

The result :

{
"__metadata" : {
"type" : "Z_API_SERVICE_ORDER_SRV.Header"
},
"CatDesc" : "",
"Category" : "",
"Description" : "",
"Origin" : "ZR2",
"Partners" : [
{
"__metadata" : {
"type" : "Z_API_SERVICE_ORDER_SRV.Partner"
},
"AddrNp" : "",
"AddrNr" : "",
"City" : "",
"Country" : "",
"FirstName" : "",
"HouseNo" : "",
"LastName" : "",
"PartnerFct" : "Y0000001",
"PartnerNumber" : "2000209",
"PostlCod1" : "",
"Region" : "",
"ServiceObjectType" : "",
"ServiceOrder" : "",
"StrSuppl3" : "",
"Street" : ""
}
],
"PurchaseOrderByCustomer" : "dummyPO",
"RejectStatus" : "",
"RejectStatusLong" : "",
"RejectStatusShort" : "",
"RequestedServiceStartDate" : "",
"Schema" : "",
"ServiceObjectType" : "Z001",
"ServiceOrder" : "",
"ServiceOrderType" : "",
"SoldToParty" : "dummy01",
"Status" : ""
}

Is it possible to deserialised a json stream to create on a fly a complex deep entity ?

Thanks a lot

Yohann

[evanireland · Accepted solution]

After using FromJSON.entity, the returned entity's children will all have "isNew" of false. Because we assume the values already existed somewhere since they were deserialized from JSON. Try this:

for p in header.partners { p.isNew = true }

then when you call createEntity the child partners should be considered as new (so requiring deep insert).

[yohann_weberfr · Accepted solution]

Hi Evan and thanks a lot for your quick answer.

Your solution works :

headerEntity.unsetDataValue(Header.serviceOrder)
headerEntity.isNew = true
headerEntity.partners = headerEntity.partners.map {
    it.isNew = true
    it
}.toMutableList()

Thanks again