Add SysOperation Batch Job through code

static void addSysOperationBatch(Args _args) 
 { 
   #define.recurrenceStartTime('11:00') 
   #define.recurrenceInterval(1) 
   #define.noOfRetriesOnFailure(2) 
   BatchHeader                                 batchHeader; 
   BatchInfo                                   batchInfo; 
   SysRecurrenceData                           sysRecurrenceData; 
   utcDateTime                                 batchStartTime; 
   Batch                                       batch; 
   PurchReqAuthorizationBatchService        PurchReqAuthorizationBatchService; 
   PurchReqAuthorizationTaskDataContract    PurchReqAuthorizationTaskDataContract; 
   SysOperationServiceController               PurchReqAuthorizationBatchServiceController;
   ; 
   select firstOnly RecId from batch 
     where batch.ClassNumber == classNum(PurchReqAuthorizationBatchService) && 
       batch.Company == curext() && 
       batch.DataPartition == getcurrentpartition(); 
   if (!batch.RecId) 
   { 
     PurchReqAuthorizationBatchServiceController = new SysOperationServiceController(classStr(PurchReqAuthorizationBatchService), methodStr(PurchReqAuthorizationBatchService, process), SysOperationExecutionMode::Synchronous); 
     PurchReqAuthorizationTaskDataContract = PurchReqAuthorizationBatchServiceController.getDataContractObject(classStr(PurchReqAuthorizationTaskDataContract)); 
     batchInfo = PurchReqAuthorizationBatchServiceController.batchInfo(); 
     batchInfo.parmRetriesOnFailure(#noOfRetriesOnFailure); 
     // Create the batch job 
     batchHeader = BatchHeader::construct(); 
     batchHeader.addTask(PurchReqAuthorizationBatchServiceController);  
     
     batchStartTime = DateTimeUtil::newDateTime(systemDateGet(), str2time(#recurrenceStartTime), DateTimeUtil::getUserPreferredTimeZone()); 
     // Set the recurrence data 
     sysRecurrenceData = SysRecurrence::defaultRecurrence(); 
     sysRecurrenceData = SysRecurrence::setRecurrenceStartDateTime(sysRecurrenceData, batchStartTime); 
     sysRecurrenceData = SysRecurrence::setRecurrenceNoEnd(sysRecurrenceData); 
     sysRecurrenceData = SysRecurrence::setRecurrenceUnit(sysRecurrenceData, SysRecurrenceUnit::Day, #recurrenceInterval); 
     batchHeader.parmRecurrenceData(sysRecurrenceData); 
     // Set the batch alert configurations 
     batchHeader.parmAlerts(NoYes::No, NoYes::Yes, NoYes::No, NoYes::Yes, NoYes::Yes); 
     batchHeader.parmStartDateTime(batchStartTime); 
     // Save the batch job 
     batchHeader.save(); 
   } 
 }