code: private List<Instrument> readCSV(String input) throws IOException {
          ICsvBeanReader beanReader = null;
          File temp = File.createTempFile("tempfile", ".tmp");
          BufferedWriter bw = new BufferedWriter(new FileWriter(temp));
          bw.write(input);
          bw.close();
  
          beanReader = new CsvBeanReader(new FileReader(temp), CsvPreference.STANDARD_PREFERENCE);
          String[] header = beanReader.getHeader(true);
          CellProcessor[] processors = getProcessors();
          Instrument instrument;
          List<Instrument> instruments = new ArrayList<>();
          while((instrument = beanReader.read(Instrument.class, header, processors)) != null ) {
              instruments.add(instrument);
          }
          return instruments;
      }
docs: This method parses csv and returns instrument list.
  @param input is csv string.
  @return  returns list of instruments.
  @throws IOException is thrown when there is connection related error.