AttributeCustomization : Can I use HttpConnectorParameters in Validators and Conditions ?

Hello All,

I am using an OSLC URI to fetch a single value everytime. I dont want to use HTTP value set provider as it returns value sets. I need the value in Conditions or Validators, to perform other calculations.

According to my use case, I need to call the URI in validators or Conditions.

Is it possible to use OSLC URI in Conditions and Validators ?

Am getting the following error :

Problems executing validator {0}: com.ibm.team.workitem.api.common.connectors is undefined.

Here is the code :

dojo.provide("com.example.Validator");
dojo.require("com.ibm.team.workitem.api.common.WorkItemAttributes");
dojo.require("com.ibm.team.workitem.api.common.connectors.HttpConnectorParameters"); 

dojo.require("com.ibm.team.workitem.api.common.Severity");
dojo.require("com.ibm.team.workitem.api.common.Status");

(function() {
var WorkItemAttributes = com.ibm.team.workitem.api.common.WorkItemAttributes;
var Severity= com.ibm.team.workitem.api.common.Severity;
var Status= com.ibm.team.workitem.api.common.Status;

    dojo.declare("com.example.Validator", null, {

        validate: function(attribute, workItem, configuration) {
         var workItemId = workItem.getValue(WorkItemAttributes.ID);
         var params= new com.ibm.team.workitem.api.common.connectors.HttpConnectorParameters(); 
         params.url="https://rb-ubk-clm-04.de.bosch.com:9443/ccm/oslc/workitems/"+workItemId+"/oslc_cm:tracksWorkItem";
         params.xpath="//*[name()='oslc_cm:Collection']";
         params.columnXpaths=["//Collection/@totalCount"];
         params.columnIds=["tracker"];
         params.ignoreInvalidCertificates=true; 
         params.useOAuth=true; 
 
         var connector= context.getDataConnector("HttpConnector"); 
         var values= connector.get(params); 
         var result; 
 
         while(values.hasNext()){ 
             var entry= values.next(); 
             result= parseInt(entry.getById("tracker"));
         }
		   if(result ==1)
		 return Status.OK_STATUS;
		 else 
			return new Status(Severity["ERROR"], "Enter tracker Value"); 
			
        }
    });
})();

Please help me on this.