code: private String getSchemaStringFromFile(File schemaFile) {
      String schemaString;
      FileInputStream fis = null;
      try {
        fis = new FileInputStream(schemaFile);
        schemaString = AvroUtils.inputStreamToString(fis);
      } catch (IOException e) {
        throw new DatasetException(e);
      } finally {
        if (fis != null) {
          try {
            fis.close();
          } catch (IOException e) {
          }
        }
      }
      return schemaString;
    }
docs: Will return the contents of schemaFile as a string
  
  @param schemaFile
  The file who's contents should be returned.
  @return The contents of schemaFile