package com.opencsv.validators;
   
   
   import com.opencsv.exceptions.CsvValidationException;
   
   public class LineDoesNotHaveForbiddenString implements LineValidator {
   
       private final String FORBIDDEN_STRING;
       private final String MESSAGE;
  
      public LineDoesNotHaveForbiddenString(String forbiddenString) {
          this.FORBIDDEN_STRING = forbiddenString;
          this.MESSAGE = "Line should not contain " + forbiddenString;
      }
  
      @Override
      public boolean isValid(String line) {
          if (line == null || FORBIDDEN_STRING == null) {
              return true;
          }
  
          return !line.contains(FORBIDDEN_STRING);
      }
  
      @Override
      public void validate(String line) throws CsvValidationException {
          if (!isValid(line)) {
              throw new CsvValidationException(MESSAGE);
          }
      }
  
      String getMessage() {
          return MESSAGE;
      }
  }