public <T> T downloadAndProcessData(final CrestApiProcessor<T> processor) {
   T result = null;
   try {
     final String data = accessor.getData(processor.getPath());
     if (StringUtils.isNotBlank(data)) {
       final JsonNode node = mapper.readTree(data);
       result = processor.parseEntry(node);
     } else if (LOGGER.isWarnEnabled()) {
       LOGGER.warn("No data to parse for " + processor.getClass().getSimpleName());
     }
   } catch (final IOException e) {
     if (LOGGER.isErrorEnabled()) {
       LOGGER.error("Could not download data", e);
     }
   }
   return result;
 }
 public <T> CrestContainer<T> downloadAndProcessContainerData(
     final CrestApiProcessor<T> processor) {
   CrestContainer<T> container = null;
   try {
     String data = accessor.getData(processor.getPath());
     if (StringUtils.isNotBlank(data)) {
       container = new CrestContainer<T>();
       String next = processData(processor, container, data);
       while (next != null) {
         data = accessor.getDataPage(next);
         next = processData(processor, container, data);
       }
       container.setTimestamp(System.currentTimeMillis());
     } else if (LOGGER.isWarnEnabled()) {
       LOGGER.warn("No data to parse for " + processor.getClass().getSimpleName());
     }
   } catch (final IOException e) {
     if (LOGGER.isErrorEnabled()) {
       LOGGER.error("Could not download data", e);
     }
   }
   return container;
 }