vaadin field validation 실습

그냥 책을 보지 않고 해 봤다.

7.6.5로 버전을 내렸고, 나름 시간을 많이 보냈는데, vaadin의 연동방식을 익히는 중이랄까...

갑자기 4GL IDE에서 작업하는 느낌이다. DCEVM 또는 JRebel 없이 vaadin작업은 힘들 것 같다.

Designer license를 구입하고 나면 타이핑하는 양이 많이 줄겠지?

 

package com.vseminar.vaadin_seminar2;

import javax.servlet.annotation.WebServlet;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.vaadin.annotations.Theme;
import com.vaadin.annotations.VaadinServletConfiguration;
import com.vaadin.annotations.Widgetset;
import com.vaadin.data.validator.EmailValidator;
import com.vaadin.data.validator.NullValidator;
import com.vaadin.data.validator.StringLengthValidator;
import com.vaadin.server.FontAwesome;
import com.vaadin.server.VaadinRequest;
import com.vaadin.server.VaadinServlet;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Button;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.PasswordField;
import com.vaadin.ui.TextField;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.themes.ValoTheme;
import com.vseminar.vaadin_seminar2.util.PasswordValidator;

/**
 * This UI is the application entry point. A UI may either represent a browser window
 * (or tab) or some part of a html page where a Vaadin application is embedded.
 * <p>
 * The UI is initialized using {@link #init(VaadinRequest)}. This method is intended to be
 * overridden to add component to the user interface and initialize non-component functionality.
 */
@Theme("vseminar")
@Widgetset("com.vseminar.vaadin_seminar2.VSeminarWidgetset")
public class VSeminarUI extends UI {

	private static final Logger logger = LoggerFactory.getLogger(VSeminarUI.class);
	private Label message;
    @Override
    protected void init(VaadinRequest vaadinRequest) {

    	logger.debug("vaadinRequest ----------> {}", vaadinRequest);

        final VerticalLayout layout = new VerticalLayout();

        final VerticalLayout loginPanel = new VerticalLayout();
        loginPanel.setSizeUndefined();
        loginPanel.setSpacing(true);

        Label top = new Label("예쁜누나들은 어서오세요~<br />너는 아니다....",ContentMode.HTML);
        top.addStyleName(ValoTheme.LABEL_H4);
        top.addStyleName(ValoTheme.LABEL_COLORED);

        loginPanel.addComponent(top);

        message = new Label();
        message.setVisible(false);
        message.setSizeFull();
        message.setStyleName(ValoTheme.LABEL_H4);
        message.setStyleName(ValoTheme.LABEL_FAILURE);
        loginPanel.addComponent(message);


        final HorizontalLayout loginFileds = new HorizontalLayout();
        loginFileds.setSizeUndefined();
        loginFileds.setSpacing(true);

        final TextField email = new TextField("Email");
        email.setIcon(FontAwesome.USER);
        email.addStyleName(ValoTheme.TEXTFIELD_INLINE_ICON);
        email.addValidator(new EmailValidator("이메일형식을 확인해 누나~"));
        email.addBlurListener(e->{
				if( email.isValid() )
					email.setValidationVisible(false);
				else
					email.setValidationVisible(true);
		});

        final PasswordField password = new PasswordField("Password");
        password.setIcon(FontAwesome.LOCK);
        password.addStyleName(ValoTheme.TEXTFIELD_INLINE_ICON);
        //password.addValidator(new StringLengthValidator("비번을 넣어야 열려라 참깨지롱~",8,50,false));
        password.addValidator(new PasswordValidator("비번 좀 제대로 넣어 누나~"));
        password.addBlurListener(e->{
				if(password.isValid())
	        		password.setValidationVisible(false);
	        	else
	        		password.setValidationVisible(true);
				logger.debug("{}",password.isValid());
		});

        final Button signon = new Button("signon");
        signon.setStyleName(ValoTheme.BUTTON_PRIMARY);
        signon.addClickListener(e->{

        	if ( !email.isValid() || !password.isValid() ) {
        		logger.debug("{} / {}", email.getValue(),password.getValue());
        		message.setValue("우째 이럴까?");
        		message.setVisible(true);
        		return;
        	}
        	message.setVisible(false);
        	logger.debug(UI.getCurrent().getPage().getWindowName());
        });

        loginFileds.addComponents(email,password,signon);
        loginFileds.setComponentAlignment(signon, Alignment.BOTTOM_LEFT);

        loginPanel.addComponent(loginFileds);

        layout.addComponent(loginPanel);
        layout.setMargin(true);
        layout.setSpacing(true);
        layout.setSizeFull();
        layout.setComponentAlignment(loginPanel, Alignment.MIDDLE_CENTER);

        setContent(layout);
    }

    @WebServlet(urlPatterns = "/*", name = "VSeminarUIServlet", asyncSupported = true)
    @VaadinServletConfiguration(ui = VSeminarUI.class, productionMode = false)
    public static class VSeminarUIServlet extends VaadinServlet {
    }
}