com.vphakala.CustomerUI.java Source code

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Here is the source code for com.vphakala.CustomerUI.java

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package com.vphakala;

import com.vaadin.data.fieldgroup.BeanFieldGroup;
import com.vaadin.data.util.BeanItemContainer;
import com.vaadin.server.FontAwesome;
import com.vaadin.server.Page;
import com.vaadin.ui.*;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;

/**
 *
 * @author FIVELHAKA
 */
public class CustomerUI extends VerticalLayout {

    private CustomerService service;

    private Customer customer;

    private Grid grid = new Grid();
    private TextField firstName = new TextField("First name");
    private TextField lastName = new TextField("Last name");
    private TextField email = new TextField("Email");
    private Button create = new Button("", e -> createCustomer());
    private Button update = new Button("", e -> updateCustomer());
    private Button read = new Button("", e -> readCustomer());
    private Button delete = new Button("", e -> deleteCustomer());

    public CustomerUI(CustomerService service) {
        super();

        this.service = service;

        updateGrid();
        grid.setColumns("firstName", "lastName");
        grid.addSelectionListener(e -> updateForm());

        Toolbar toolbar = new Toolbar("Customer", read, create, update, delete);

        addComponents(toolbar, firstName, lastName, email, grid);

        setMargin(true);
        setSpacing(true);
        setCaption("Customer");
    }

    private void updateGrid() {
        List customers = service.findAll();
        grid.setContainerDataSource(new BeanItemContainer<>(Customer.class, customers));
        setFormVisible(true);
    }

    private void updateForm() {
        if (grid.getSelectedRows().isEmpty()) {
            setFormVisible(false);
        } else {
            customer = (Customer) grid.getSelectedRow();
            BeanFieldGroup.bindFieldsUnbuffered(customer, this);
            if (customer.getEmail() == null) {
                email.clear();
            }
            setFormVisible(true);
        }
    }

    private void setFormVisible(boolean visible) {
        firstName.setVisible(visible);
        lastName.setVisible(visible);
        email.setVisible(visible);
    }

    public void createCustomer() {
        if (service.create(new Customer(0L, firstName.getValue(), lastName.getValue(), email.getValue())) == true) {
            Notification.show("create OK");
            updateGrid();
            firstName.clear();
            lastName.clear();
            email.clear();
        } else {
            Notification.show("Create failed");
        }
    }

    public void updateCustomer() {
        if (grid.getSelectedRows().isEmpty()) {
            new Notification("Update: failed", "<br/>Select a customer to be <i>updated </i>",
                    Notification.Type.HUMANIZED_MESSAGE, true).show(Page.getCurrent());
        } else {
            service.update(customer);
            updateGrid();
        }
    }

    public void readCustomer() {
        List customers = service.read(firstName.getValue(), lastName.getValue());
        if (customers.isEmpty() == true) {
            Notification.show("Read: not found");
        } else {
            customer = (Customer) customers.get(0);
            BeanFieldGroup.bindFieldsUnbuffered(customer, this);
        }

    }

    public void deleteCustomer() {
        if (grid.getSelectedRows().isEmpty()) {
            new Notification("Delete: failed", "<br/>Select a customer to be <i>deleted</i>",
                    Notification.Type.HUMANIZED_MESSAGE, true).show(Page.getCurrent());
        } else {
            customer = (Customer) grid.getSelectedRow();
            service.delete(customer);
            updateGrid();
        }
    }

    public TextField getEmail() {
        return email;
    }

}