Examples of org.apache.wicket.validation.ValidationError

org.apache.wicket.validation.ValidationError
A versatile implementation of {@link IValidationError} that supports message resolution from{@link IErrorMessageSource}, default message (if none of the keys matched), and variable substitution. The final error message is constructed via the following process:
1. Try all keys added by calls to {@link #addKey(String)} via the providedIErrorMessageSource.
2. If none of the keys yielded a message, use the message set by {@link #setMessage(String)}, if any.
3. Perform variable substitution on the message, if any.
@author Igor Vaynberg (ivaynberg) @since 1.2.6

    {
      throw new IllegalArgumentException("Argument [[resourceKey]] cannot be null");
    }




    ValidationError error = new ValidationError().addMessageKey(resourceKey);
    final String defaultKey = Classes.simpleName(getClass());
    if (!resourceKey.equals(defaultKey))
    {
      error.addMessageKey(defaultKey);
    }


    error.setVariables(vars);
    validatable.error(error);
  }

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      {
        convertedInput = convertValue(getInputAsArray());
      }
      catch (ConversionException e)
      {
        ValidationError error = new ValidationError();
        if (e.getResourceKey() != null)
        {
          error.addMessageKey(e.getResourceKey());
        }
        if (e.getTargetType() != null)
        {
          error.addMessageKey("ConversionError." + Classes.simpleName(e.getTargetType()));
        }
        error.addMessageKey("ConversionError");
        reportValidationError(e, error);
      }
    }
    else
    {
      final IConverter converter = getConverter(getType());


      try
      {
        convertedInput = (T)converter.convertToObject(getInput(), getLocale());
      }
      catch (ConversionException e)
      {
        ValidationError error = new ValidationError();
        if (e.getResourceKey() != null)
        {
          error.addMessageKey(e.getResourceKey());
        }
        String simpleName = Classes.simpleName(getType());
        error.addMessageKey("IConverter." + simpleName);
        error.addMessageKey("IConverter");
        error.setVariable("type", simpleName);
        reportValidationError(e, error);
      }
    }
  }

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  /**
   * Reports required error against this component
   */
  private void reportRequiredError()
  {
    error((IValidationError)new ValidationError().addMessageKey("Required"));
  }

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   *            the original cause
   * @return {@link ValidationError}
   */
  protected ValidationError newValidationError(ConversionException cause)
  {
    ValidationError error = new ValidationError();


    if (cause.getResourceKey() != null)
    {
      error.addKey(cause.getResourceKey());
    }


    if (typeName == null)
    {
      if (cause.getTargetType() != null)
      {
        error.addKey("ConversionError." + Classes.simpleName(cause.getTargetType()));
      }
      error.addKey("ConversionError");
    }
    else
    {
      String simpleName = Classes.simpleName(getType());
      error.addKey("IConverter." + simpleName);
      error.addKey("IConverter");
      error.setVariable("type", simpleName);
    }


    final Locale locale = cause.getLocale();
    if (locale != null)
    {
      error.setVariable("locale", locale);
    }


    error.setVariable("exception", cause);


    Format format = cause.getFormat();
    if (format instanceof SimpleDateFormat)
    {
      error.setVariable("format", ((SimpleDateFormat)format).toLocalizedPattern());
    }


    Map<String, Object> variables = cause.getVariables();
    if (variables != null)
    {
      error.getVariables().putAll(variables);
    }


    return error;
  }

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  /**
   * Reports required error against this component
   */
  protected void reportRequiredError()
  {
    error(new ValidationError().addKey("Required"));
  }

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  @Override
  public <T> ValidationError convert(ConstraintViolation<T> violation)
  {
    ConstraintDescriptor<?> desc = violation.getConstraintDescriptor();


    ValidationError error = new ValidationError();
    error.setMessage(violation.getMessage());


    List<String> messages = getViolationMessages(violation, desc);
    addErrorKeys(error, violation.getInvalidValue(), messages);


    for (String key : desc.getAttributes().keySet())
    {
      error.setVariable(key, desc.getAttributes().get(key));
    }
    
    return error;
  }

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    @SuppressWarnings("unchecked")
    ConstraintViolation<BeanWithPassword> shortViolation = (ConstraintViolation<BeanWithPassword>)constraintViolations
      .toArray()[0];


    ValidationError error = translator.convert(shortViolation);


    checkErrorBundleKeys(error, DEFAULT_BUNDLE_KEY + ".String", DEFAULT_BUNDLE_KEY);


    // test with a password containing non-word chars
    bean.setPassword("notWord&%$£");

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            @Override
            public void validate(final IValidatable<String> validatable) {
                final String proposedValue = validatable.getValue();
                final String reasonIfAny = scalarModel.parseAndValidate(proposedValue);
                if (reasonIfAny != null) {
                    final ValidationError error = new ValidationError();
                    error.setMessage(reasonIfAny);
                    validatable.error(error);
                }
            }
        });
    }

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            public void validate(final IValidatable<T> validatable) {
                final T proposed = validatable.getValue();
                final ObjectAdapter proposedAdapter = adapterFor(proposed);
                String reasonIfAny = scalarModel.validate(proposedAdapter);
                if (reasonIfAny != null) {
                    final ValidationError error = new ValidationError();
                    error.setMessage(reasonIfAny);
                    validatable.error(error);
                }
            }
        });
    }

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            @Override
            public void validate(final IValidatable<ObjectAdapter> validatable) {
                final ObjectAdapter proposedAdapter = validatable.getValue();
                final String reasonIfAny = getModel().validate(proposedAdapter);
                if (reasonIfAny != null) {
                    final ValidationError error = new ValidationError();
                    error.setMessage(reasonIfAny);
                    validatable.error(error);
                }
            }
        });

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