Java tutorial
/** * This file is part of mycollab-web. * * mycollab-web is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * mycollab-web is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with mycollab-web. If not, see <http://www.gnu.org/licenses/>. */ package com.esofthead.mycollab.vaadin.mvp.view; import com.esofthead.mycollab.common.i18n.GenericI18Enum; import com.esofthead.mycollab.vaadin.AppContext; import com.esofthead.mycollab.vaadin.mvp.AbstractPageView; import com.esofthead.mycollab.vaadin.mvp.ViewComponent; import com.esofthead.mycollab.vaadin.ui.ELabel; import com.hp.gagawa.java.elements.A; import com.hp.gagawa.java.elements.Div; import com.vaadin.server.FontAwesome; import com.vaadin.shared.ui.label.ContentMode; import com.vaadin.ui.Alignment; import com.vaadin.ui.Label; import com.vaadin.ui.themes.ValoTheme; import org.springframework.web.client.RestTemplate; import org.vaadin.viritin.layouts.MVerticalLayout; /** * @author MyCollab Ltd. * @since 1.0 */ @ViewComponent public class NotPresentedView extends AbstractPageView { private static final long serialVersionUID = 1L; public NotPresentedView() { this.withSpacing(true).withFullWidth(); this.setDefaultComponentAlignment(Alignment.MIDDLE_CENTER); final Label titleIcon = new Label(FontAwesome.EXCLAMATION_CIRCLE.getHtml(), ContentMode.HTML); titleIcon.setStyleName("warning-icon"); titleIcon.addStyleName(ValoTheme.LABEL_NO_MARGIN); titleIcon.setWidthUndefined(); this.with(titleIcon); Label label = ELabel.h2(AppContext.getMessage(GenericI18Enum.NOTIFICATION_FEATURE_NOT_AVAILABLE_IN_VERSION)) .withWidthUndefined(); this.with(label).withAlign(label, Alignment.MIDDLE_CENTER); RestTemplate restTemplate = new RestTemplate(); try { String result = restTemplate.getForObject("https://api.mycollab.com/api/storeweb", String.class); Label webPage = new Label(result, ContentMode.HTML); webPage.setHeight("480px"); this.with(new MVerticalLayout(webPage).withMargin(false).withAlign(webPage, Alignment.TOP_CENTER)); } catch (Exception e) { Div informDiv = new Div() .appendText("Can not load the store page. You can check the online edition at ") .appendChild(new A("https://www.mycollab.com/pricing/download/", "_blank").appendText("here")); ELabel webPage = new ELabel(informDiv.write(), ContentMode.HTML).withWidthUndefined(); this.with(new MVerticalLayout(webPage).withAlign(webPage, Alignment.TOP_CENTER)); } } }