Example usage for org.springframework.validation DataBinder getValidator

Introduction

In this page you can find the example usage for org.springframework.validation DataBinder getValidator.

Prototype

@Nullable
public Validator getValidator() 

Source Link

Document

Return the primary Validator to apply after each binding step, if any.

Usage

From source file:org.agatom.springatom.cmp.wizards.core.AbstractWizardProcessor.java

@SuppressWarnings("UnusedAssignment")
private void doValidate(final WizardResult result, final DataBinder binder, String step,
        final Map<String, Object> formData, final Locale locale) throws Exception {

    final Object target = binder.getTarget();

    if (!StringUtils.hasText(step)) {
        // Wizard submission, because step is null
        step = this.stepHelperDelegate.getLastStep();
        if (!this.stepHelperDelegate.isValidationEnabled(step)) {
            // reset the step again
            step = null;/*w  w  w.j  a  va2s.c  om*/
        }
    }

    try {
        final BindingResult bindingResult = binder.getBindingResult();
        boolean alreadyValidate = false;

        if (this.localValidator != null) {
            if (LOGGER.isDebugEnabled()) {
                LOGGER.debug(String.format("Validating via Validator instance=%s", this.localValidator));
            }
            this.validationService.validate(this.localValidator, bindingResult, result);
            alreadyValidate = true;
        }

        if (!alreadyValidate) {
            final ValidationBean bean = new ValidationBean();

            bean.setPartialResult(result);
            bean.setStepId(step);
            bean.setCommandBean(bindingResult.getTarget());
            bean.setCommandBeanName(this.getContextObjectName());
            bean.setFormData(formData);
            bean.setBindingModel(formData);

            if (this.validationService.canValidate(bean)) {
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug(
                            String.format("Validating via validation service for validationBean=%s", bean));
                }
                this.validationService.validate(bean);
                alreadyValidate = true;
            }
        }

        /* Will validate only if not yet validated it is not step submission and wizard is allowed to validate
         * This a last opportunity to validate however unlike validation via
         * - localValidator
         * - validationService
         * this validation will be run only if
         * - not yet validated
         * - current (or last) step has validation flag set
         * - entire wizard has validation flag set
         */
        if (!alreadyValidate && this.isValidationEnabledForStep(step) && this.isValidationEnabled()) {
            LOGGER.debug(String.format(
                    "Not yet validated (tried localValidator and via validationService), assuming that is wizard submission due to step===null, validating through binder"));
            final Validator validator = binder.getValidator();
            if (validator != null) {

                final long startTime = System.nanoTime();
                validator.validate(target, bindingResult);
                final long endTime = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startTime);

                result.addDebugData(WizardDebugDataKeys.VALIDATION_TIME, endTime);
                result.addDebugData(WizardDebugDataKeys.VALIDATOR,
                        ClassUtils.getShortName(validator.getClass()));

            }
        }

        if (LOGGER.isDebugEnabled()) {
            final Set<Message> messages = result.getValidationMessages();
            final short count = (short) (messages == null ? 0 : messages.size());
            LOGGER.debug(String.format("Validation completed, found %d validation errors", count));
        }
    } catch (Exception exp) {
        // Catch any validation exception and add it as an error
        LOGGER.error("Validation failed either via [localValidator,validationService,binder#validator", exp);
        result.addError(exp);
        result.addFeedbackMessage(FeedbackMessage.newError()
                .setTitle(this.messageSource.getMessage("sa.wiz.validationError.title", locale))
                .setMessage(this.messageSource.getMessage("sa.wiz.validationError.msg",
                        new Object[] { target.toString() }, locale)));
    }

}

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