UploadExampleListener.java

package sk.iway.basecms.contact.upload;

import javax.validation.Validator;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.event.EventListener;
import org.springframework.stereotype.Component;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;

import sk.iway.iwcm.admin.AbstractUploadListener;
import sk.iway.iwcm.admin.ThymeleafEvent;
import sk.iway.iwcm.system.spring.events.WebjetEvent;

/**
 * Ukazkovy Thymeleaf listener pre spracovanie uploadu suboru
 */
@Component
public class UploadExampleListener extends AbstractUploadListener<Form> {

    private static final Logger LOGGER = LoggerFactory.getLogger(UploadExampleListener.class);

    protected UploadExampleListener(Validator validator) {
        super(validator);
    }

    @Override
    @EventListener(condition = "#event.clazz eq 'sk.iway.iwcm.admin.ThymeleafEvent' && event.source.page=='contact' && event.source.subpage=='upload'")
    public void processForm(final WebjetEvent<ThymeleafEvent> event) {
        // sprocesovanie dat formularu do objektu a validacia tohto objektu
        super.processForm(event);
        ModelMap model = event.getSource().getModel();
        // ziskanie objektu a vlozenie do modelu
        Form form = getForm();
        model.addAttribute("form", form);

        LOGGER.debug("Is post: {}", isPost());
        if (!isPost()) {
            // ak nie je request typu post, tak dalej nic nerobime
            return;
        }

        // ziskanie validacnych errorov
        BindingResult errors = getBindingResult();
        if (errors.hasErrors()) {
            LOGGER.debug("We have errors: {}", errors.getErrorCount());
            return;
        }

        //
        //...spravte s formularom co potrebujete
        //
        model.addAttribute("importedFileName", form.getDocument().getOriginalFilename());
    }
}