Java tutorial
/******************************************************************************* * This file is part of OpenNMS(R). * * Copyright (C) 2013-2014 The OpenNMS Group, Inc. * OpenNMS(R) is Copyright (C) 1999-2014 The OpenNMS Group, Inc. * * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc. * * OpenNMS(R) is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published * by the Free Software Foundation, either version 3 of the License, * or (at your option) any later version. * * OpenNMS(R) 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with OpenNMS(R). If not, see: * http://www.gnu.org/licenses/ * * For more information contact: * OpenNMS(R) Licensing <license@opennms.org> * http://www.opennms.org/ * http://www.opennms.com/ *******************************************************************************/ package org.opennms.features.vaadin.surveillanceviews.ui; import com.vaadin.annotations.Theme; import com.vaadin.annotations.Title; import com.vaadin.server.VaadinRequest; import com.vaadin.ui.Notification; import com.vaadin.ui.UI; import com.vaadin.ui.VerticalLayout; import org.opennms.features.vaadin.surveillanceviews.config.SurveillanceViewProvider; import org.opennms.features.vaadin.surveillanceviews.service.SurveillanceViewService; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * The surveillance view config application's "main" class * * @author Christian Pape */ @SuppressWarnings("serial") @Theme("opennms") @Title("OpenNMS Surveillance Views") public class SurveillanceViewsConfigUI extends UI { /** * the logger instance */ private static final Logger LOG = LoggerFactory.getLogger(SurveillanceViewsConfigUI.class); /** * the surveillance view service to be used */ private SurveillanceViewService m_surveillanceViewService; /** * {@inheritDoc} */ @Override protected void init(VaadinRequest request) { /** * Force the reload of the configuration */ SurveillanceViewProvider.getInstance().load(); /** * Create the basic layout */ VerticalLayout rootLayout = new VerticalLayout(); rootLayout.setSizeFull(); rootLayout.setSpacing(true); rootLayout.addComponent(new SurveillanceViewsConfigList(m_surveillanceViewService)); setContent(rootLayout); } /** * Method for displaying notification for the user. * * @param message the message to be displayed * @param description the description of this message * @param type the type of this notification */ public void notifyMessage(String message, String description, Notification.Type type) { Notification m_notification = new Notification("Message", type); m_notification.setCaption(message); m_notification.setDescription(description); m_notification.setDelayMsec(1000); if (getUI() != null) { if (getPage() != null) { m_notification.show(getUI().getPage()); } } } /** * Method for displaying notification for the user. * * @param message the message to be displayed * @param description the description of this message */ public void notifyMessage(String message, String description) { notifyMessage(message, description, Notification.Type.TRAY_NOTIFICATION); } /** * Method for setting the {@link org.opennms.features.vaadin.surveillanceviews.service.SurveillanceViewService} instance to be used * * @param surveillanceViewService the instance to be used */ public void setSurveillanceViewService(SurveillanceViewService surveillanceViewService) { this.m_surveillanceViewService = surveillanceViewService; } }