src/club/wpia/gigi/passwords/DelegatingPasswordChecker.java

   1 package club.wpia.gigi.passwords;
   2
   3 import club.wpia.gigi.GigiApiException;
   4
   5 /**
   6  * A {@link PasswordChecker} that delegates checks to several other PasswordCheckers
   7  * and merges their error messages.
   8  */
   9 public class DelegatingPasswordChecker implements PasswordChecker {
  10
  11     private final PasswordChecker[] checkers;
  12
  13     public DelegatingPasswordChecker(PasswordChecker[] checkers) {
  14         this.checkers = checkers;
  15     }
  16
  17     @Override
  18     public GigiApiException checkPassword(String password, String[] nameParts, String email) {
  19         GigiApiException exception = new GigiApiException();
  20         for (PasswordChecker checker : checkers) {
  21             GigiApiException currentException = checker.checkPassword(password, nameParts, email);
  22             if (currentException != null) {
  23                 exception.mergeInto(currentException);
  24             }
  25         }
  26         if (exception.isEmpty()) {
  27             return null;
  28         } else {
  29             return exception;
  30         }
  31     }
  32 }