code: private JsonSimple getWorkflowData(String oid) {
  		// Get our data from Storage
  		Payload payload = null;
  		try {
  			DigitalObject object = storage.getObject(oid);
  			payload = object.getPayload(WORKFLOW_PAYLOAD);
  		} catch (StorageException ex) {
  			log.error("Error accessing object '{}' in storage: ", oid, ex);
  			return null;
  		}
  
  		// Parse the JSON
  		try {
  			try {
  				return new JsonSimple(payload.open());
  			} catch (IOException ex) {
  				log.error("Error parsing workflow '{}': ", oid, ex);
  				return null;
  			} finally {
  				payload.close();
  			}
  		} catch (StorageException ex) {
  			log.error("Error accessing workflow '{}' in storage: ", oid, ex);
  			return null;
  		}
  	}
docs: Get the data payload (ending in '.tfpackage') from the provided object.
  
  @param object
  The digital object holding our payload
  @return Payload The payload requested
  @throws StorageException
  if an errors occurs or the payload is not found