code: private JsonSimple getConfigFromStorage(String oid) {
  		String configOid = null;
  		String configPid = null;
  
  		// Get our object and look for its config info
  		try {
  			DigitalObject object = storage.getObject(oid);
  			Properties metadata = object.getMetadata();
  			configOid = metadata.getProperty("jsonConfigOid");
  			configPid = metadata.getProperty("jsonConfigPid");
  		} catch (StorageException ex) {
  			log.error("Error accessing object '{}' in storage: ", oid, ex);
  			return null;
  		}
  
  		// Validate
  		if (configOid == null || configPid == null) {
  			log.error("Unable to find configuration for OID '{}'", oid);
  			return null;
  		}
  
  		// Grab the config from storage
  		try {
  			DigitalObject object = storage.getObject(configOid);
  			Payload payload = object.getPayload(configPid);
  			try {
  				return new JsonSimple(payload.open());
  			} catch (IOException ex) {
  				log.error("Error accessing config '{}' in storage: ",
  						configOid, ex);
  			} finally {
  				payload.close();
  			}
  		} catch (StorageException ex) {
  			log.error("Error accessing object in storage: ", ex);
  		}
  
  		// Something screwed the pooch
  		return null;
  	}
docs: Get the stored harvest configuration from storage for the indicated
  object.
  
  @param oid
  The object we want config for