groovy:LinkedHash: missing property - groovy

Question

I'm struggling to remove key 'customerNumber' from sub-arrays allAddresses and allPersons. my requirement is that in the below payload key customerNumber should only appear in the parent array CustomerMaster. all other appearances of customerNumber should be deleted.
with the below code I get error groovy.lang.MissingPropertyException: No such property: allAddresses for class: java.util.LinkedHashMap$Entry. To my surprise the code works when the key CustomerMaster is an array. I dont understand why it fails if the customer is not an array
import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
import groovy.json.JsonSlurper;
import groovy.json.JsonOutput;
import groovy.json.*
def Message removeCustomerNumber(Message message) {
def body = message.getBody(String)
//def body = message.getBody(String.class);
body=body.toString();
def json = new JsonSlurper().parseText(body)
json.CustomerMaster.each{
// if (it.allAddresses.metaClass.respondsTo('each')){
// if(it.metaClass.hasProperty(it, 'allAddresses')){
it.allAddresses.each{
it.remove('customerNumber')
}
// }
// }
}
def out= JsonOutput.toJson(json);
//out = JsonOutput.prettyPrint()
message.setBody(out);
return message;
}
in other words when the CustomerMaster is an collection, I have no issue. I tried checking with hasProperty() and respondsTo() with out success
payload:
{
"CustomerMaster": {
"activitySector": "01",
"cognosCode": "ES001",
"companyName1": "SANIPLAST SOL. SOSTEN. DEL AGUA SL",
"companyName2": "ALIAXIS IBERIA S.A.U.",
"creditControlArea": "ES01",
"currency": "EUR",
"customerNumber": "0000100001",
"allPersons": [
{
"birthday": "00000000",
"cognosCode": "ES001",
"contactId": "0000000308",
"customerNumber": "0000100001",
"jobTitle": "ENCARGADO COBROS",
"language": "ES",
"lastName": "EDUARDO JIMENEZ"
},
{
"birthday": "20210419",
"cognosCode": "ES001",
"contactId": "0000000475",
"customerNumber": "0000100001",
"email1": "FACTURASPDF.SNPT#ABAST.ES",
"jobTitle": "ENVÍO FACTURACIÓN",
"language": "ES",
"lastName": "FACTURACION"
},
{
"birthday": "00000000",
"cognosCode": "ES001",
"contactId": "0000000036",
"customerNumber": "0000100001",
"jobTitle": "REPRESENTANTE LEGAL",
"language": "ES",
"lastName": "D. JULIO ESTEBAN SALGADO"
}
],
"allAddresses": [
{
"StateOrProvince": "MERES-SIERO",
"city": "MERES-SIERO",
"countryCode": "ES",
"customerNumber": "0000100001",
"fax": "985793802",
"id": "0000372156",
"name": "SANIPLAST SOL. SOSTEN. DEL AGUA SL",
"number": "1",
"phoneBusiness": "985-792224",
"postalCode": "33199",
"region": "33",
"street": "POL.IND.PRONI. CALLE D",
"type": "WE"
},
{
"StateOrProvince": "MERES-SIERO",
"city": "MERES-SIERO",
"countryCode": "ES",
"customerNumber": "0000100001",
"fax": "985793802",
"id": "0000372156",
"name": "SANIPLAST SOL. SOSTEN. DEL AGUA SL",
"number": "1",
"phoneBusiness": "985-792224",
"postalCode": "33199",
"region": "33",
"street": "POL.IND.PRONI. CALLE D",
"type": "AG"
},
{
"StateOrProvince": "MERES-SIERO",
"city": "MERES-SIERO",
"countryCode": "ES",
"customerNumber": "0000100001",
"fax": "985793802",
"id": "0000372156",
"name": "SANIPLAST SOL. SOSTEN. DEL AGUA SL",
"number": "1",
"phoneBusiness": "985-792224",
"postalCode": "33199",
"region": "33",
"street": "POL.IND.PRONI. CALLE D",
"type": "RE"
},
{
"StateOrProvince": "MERES-SIERO",
"city": "MERES-SIERO",
"countryCode": "ES",
"customerNumber": "0000100001",
"fax": "985793802",
"id": "0000372156",
"name": "SANIPLAST SOL. SOSTEN. DEL AGUA SL",
"number": "1",
"phoneBusiness": "985-792224",
"postalCode": "33199",
"region": "33",
"street": "POL.IND.PRONI. CALLE D",
"type": "RG"
},
{
"StateOrProvince": "MERES-SIERO",
"city": "MERES-SIERO",
"countryCode": "ES",
"customerNumber": "0000100001",
"fax": "985793802",
"id": "0000372156",
"name": "SANIPLAST SOL. SOSTEN. DEL AGUA SL",
"number": "1",
"phoneBusiness": "985-792224",
"postalCode": "33199",
"region": "33",
"street": "POL.IND.PRONI. CALLE D",
"type": "ZV"
}
],
"email1": "JUANJOSE.GONZALEZ#SANIPLAST.ES",
"entityCode": "ES01",
"fax": "985793802",
"phone1": "985-792224",
"phone2": "985791154ISABEL",
"termsofPayment": "Z037"
}
}

Answer 1

def json = new JsonSlurper().parseText(body)
if(json.CustomerMaster instanceof List){
json.CustomerMaster.each{
it.allPersons?.each{it.remove("customerNumber")}
it.allAddresses?.each{it.remove("customerNumber")}
}
}else{
json.CustomerMaster?.allPersons?.each{it.remove("customerNumber")}
json.CustomerMaster?.allAddresses?.each{it.remove("customerNumber")}
}
with ternary operator
( json.CustomerMaster instanceof List ? json.CustomerMaster : [json.CustomerMaster] ).each{
it?.allPersons?.each{it.remove("customerNumber")}
it?.allAddresses?.each{it.remove("customerNumber")}
}