code: private void getSizeInfo(AlluxioURI path, List<URIStatus> statuses,
        boolean readable, boolean summarize, boolean addMemory) {
      if (summarize) {
        long totalSize = 0;
        long sizeInAlluxio = 0;
        long sizeInMem = 0;
        for (URIStatus status : statuses) {
          if (!status.isFolder()) {
            long size = status.getLength();
            totalSize += size;
            sizeInMem += size * status.getInMemoryPercentage();
            sizeInAlluxio += size * status.getInMemoryPercentage();
          }
        }
        String sizeMessage = readable ? FormatUtils.getSizeFromBytes(totalSize)
            : String.valueOf(totalSize);
        String inAlluxioMessage = getFormattedValues(readable, sizeInAlluxio / 100, totalSize);
        String inMemMessage = addMemory
            ? getFormattedValues(readable, sizeInMem / 100, totalSize) : "";
        printInfo(sizeMessage, inAlluxioMessage, inMemMessage, path.toString());
      } else {
        for (URIStatus status : statuses) {
          if (!status.isFolder()) {
            long totalSize = status.getLength();
            String sizeMessage = readable ? FormatUtils.getSizeFromBytes(totalSize)
                : String.valueOf(totalSize);
            String inAlluxioMessage = getFormattedValues(readable,
                status.getInAlluxioPercentage() * totalSize / 100, totalSize);
            String inMemMessage = addMemory ? getFormattedValues(readable,
                status.getInMemoryPercentage() * totalSize / 100, totalSize) : "";
            printInfo(sizeMessage, inAlluxioMessage, inMemMessage, status.getPath());
          }
        }
      }
    }
docs: Gets and prints the size information of the input path according to options.
  
  @param path the path to get size info of
  @param statuses the statuses of files and folders
  @param readable whether to print info of human readable format
  @param summarize whether to display the aggregate summary lengths
  @param addMemory whether to display the memory size and percentage information