Java Code Examples for com.vaadin.ui.Notification#show()

@Override
public void enter(final ViewChangeListener.ViewChangeEvent event) {
    final DashboardMenuItem view = dashboardMenu.getByViewName(event.getViewName());
    if (view == null) {
        message.setValue(i18n.getMessage("message.error.view", event.getViewName()));
        return;
    }
    if (dashboardMenu.isAccessDenied(event.getViewName())) {
        final Notification nt = new Notification("Access denied",
                i18n.getMessage("message.accessdenied.view", event.getViewName()), Type.ERROR_MESSAGE, false);
        nt.setStyleName(SPUIStyleDefinitions.SP_NOTIFICATION_ERROR_MESSAGE_STYLE);
        nt.setPosition(Position.BOTTOM_RIGHT);
        nt.show(UI.getCurrent().getPage());
        message.setValue(i18n.getMessage("message.accessdenied.view", event.getViewName()));
    }
}
 

public void save(Invoicer entity) {
    try {
        if (entity.getId() == null) {
            cf.save(entity);
            session.getUser().getAdministrates().add(entity);
        } else {
            cf.save(entity);
        }
        Notification.show("Saved!");
    } catch (Exception e) {
        Notification.show("Saving failed!",
                "Most probably concurrently edited",
                Notification.Type.WARNING_MESSAGE);
    }
    listEntities();
    form.getPopup().close();
}
 

@Override
public Component getTestComponent() {
    
    strings.setOptions(Arrays.asList(options));
    strings.withColumnHeaderMode(Table.ColumnHeaderMode.HIDDEN);
    strings.withRowHeaderMode(Table.RowHeaderMode.ID);
    strings.withProperties();
    
    final Beani beani = new Beani();
    
    MBeanFieldGroup.bindFieldsUnbuffered(beani, this);
    
    
    Button showValue = new Button("show value", new Button.ClickListener() {

        @Override
        public void buttonClick(Button.ClickEvent event) {
            Notification.show(beani.toString());
        }
    });
    
    return new MVerticalLayout(strings, showValue);
}
 

public void onMaxSizeExceeded(long contentLength) {
    Notification.show(
            "Max size exceeded "
                    + FileUtils.byteCountToDisplaySize(contentLength)
                    + " > " + FileUtils.byteCountToDisplaySize(maxFileSize),
            Notification.Type.ERROR_MESSAGE);
}
 

@EventBusListenerMethod
public void onAccessDenied(org.vaadin.spring.events.Event<AccessDeniedEvent> event) {
	//TODO Redirect to login,
	
	if (event.getPayload().getCause() != null) {
		Notification.show("Access is denied.", "Service can be invoked only by Admin users.", Type.ERROR_MESSAGE);
	} else {
		if (event.getPayload().getViewToken().equals(ViewToken.USER)) {
			Notification.show("Access is denied.", "You must sign in before accessing User home.", Type.ERROR_MESSAGE);
		} else {
			Notification.show("Access is denied.", "You must sign in as Admin user before accessing Admin home.", Type.ERROR_MESSAGE);
		}
	}
}
 

@Override
public void onValidationError(Map<Field<?>, InvalidValueException> validationErrors) {
	super.onValidationError(validationErrors);
	StringBuilder sb = new StringBuilder();
	for(Field<?> field: validationErrors.keySet()) {
		if(sb.length()!= 0) {
			sb.append(", ");
		}
		sb.append(field.getCaption());		
	}
	Notification.show("Fehler in folgenden Feldern:", sb.toString(), Notification.Type.ERROR_MESSAGE);
}
 

private void showNotificationWithMousedetails(String msg, MouseEventDetails details) {
    String detailsTxt = "";
    if (details.isCtrlKey()) {
        detailsTxt = "(Ctrl down) ";
    }
    Notification.show(detailsTxt + msg, Type.TRAY_NOTIFICATION);
}
 

@Override
public void error(final ErrorEvent event) {
	if (ExceptionUtils.getRootCause(event.getThrowable()) instanceof AccessDeniedException) {
		final AccessDeniedException accessDeniedException = (AccessDeniedException) ExceptionUtils.getRootCause(event.getThrowable());
		Notification.show(accessDeniedException.getMessage(), Notification.Type.ERROR_MESSAGE);
		ui.getNavigator().navigateTo(CommonsViews.MAIN_VIEW_NAME);
	} else {
		LOGGER.warn(LOG_WARN_VAADIN_ERROR, event.getThrowable());
	}
}
 

public void entrySaved(PhoneBookGroup value) {
    try {
        service.save(value);
        form.setVisible(false);
    } catch (Exception e) {
        Notification.show("Saving entity failed due to " + e.
                getLocalizedMessage(), Notification.Type.WARNING_MESSAGE);
    }
    // deselect the entity
    entryList.asSingleSelect().setValue(null);
    // refresh list
    listEntries();
}
 

@Override
public void drop(DragAndDropEvent event) {
	Transferable t = event.getTransferable();
	Component source = t.getSourceComponent();
	if (source != this.treeWorkspace) {
		assert(false);
		throw new IllegalArgumentException();
	}
	TableTransferable tt = (TableTransferable) t;
	File sourceFile = (File) tt.getItemId();
	
	AbstractSelectTargetDetails target = (AbstractSelectTargetDetails)event.getTargetDetails();
	File targetFile = (File) target.getItemIdOver();
	
	if (sourceFile.isFile() && targetFile != null && targetFile.isDirectory()) {
		//
		// Construct destination filename
		//
		Path dest = targetFile.toPath().resolve(sourceFile.getName());
		//
		// Check if the target domain exists
		//
		if (Files.exists(dest)) {
			//
			// Prompt the user
			//
			Notification.show("A policy file with that name already exists in that directory.", Notification.Type.ERROR_MESSAGE);
		} else {
			//
			// Go ahead and rename it
			//
			this.renamePolicyFile(sourceFile, dest.toFile(), targetFile);
		}
	}
}
 

@Override
public Component getTestComponent() {
    
    mapField.setCaption("String->Double");
    stringToInt.setCaption("Strint->Integer");
    stringToString.setCaption("Strint->String");
    
    TestClass bean = new TestClass();
    
    bean.getMapField().put("first", 1.0);

    BeanBinder.bind(bean, this);

    Button button = new Button("Show value", e -> {
        Notification.show(bean.toString());
    });
    
    return new MVerticalLayout(mapField, stringToInt, stringToString, button);

}
 

@Override
public void afterCancel(Object entity) {
	Notification.show("Abgebrochen");
}
 

@Override
public void valueChange(Property.ValueChangeEvent event) {
    Notification.show(event.getProperty().getValue().toString());
}
 

public void sayHolaOldSchool(ClickEvent e) {
    Notification.show("Hola oldschool fellow!", Notification.Type.TRAY_NOTIFICATION);
}
 

@Override
public void afterSave(Object entity) {
	Notification.show("Gespeichert");
}
 

@Override
public void afterCancel(Object entity) {
	Notification.show("Abgebrochen");
}
 

public void save(Invoice entity) {
    facade.save(entity);
    Notification.show("Saved!");
    form.getPopup().close();
    listEntities();
}
 

public void onFileTypeMismatch() {
    Notification.show("File type mismatch, accepted: " + acceptString,
            Notification.Type.ERROR_MESSAGE);
}
 

public void onFileCountExceeded() {
    Notification.show("File count exceeded",
            Notification.Type.ERROR_MESSAGE);
}
 

private void onCalendarClick(CalendarComponentEvents.ItemClickEvent event) {

        MeetingItem item = (MeetingItem) event.getCalendarItem();

        final Meeting meeting = item.getMeeting();

        Notification.show(meeting.getName(), meeting.getDetails(), Type.HUMANIZED_MESSAGE);
    }