Java tutorial
/******************************************************************************* * This file is part of OpenNMS(R). Copyright (C) 2007-2011 The OpenNMS Group, * Inc. OpenNMS(R) is Copyright (C) 1999-2011 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 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 General Public License for * more details. You should have received a copy of the GNU 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.dashboard.client.portlet; import org.opennms.features.dashboard.client.layout.BasicDBLayout; import org.opennms.features.dashboard.client.layout.VerticalDBLayout; import org.opennms.features.dashboard.client.portlet.IBasicPortlet; import org.opennms.features.dashboard.client.portlet.Portlet; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.DOM; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.rpc.ServiceDefTarget; import com.google.gwt.user.client.ui.Button; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.user.client.ui.DialogBox; import com.google.gwt.user.client.ui.HTMLPanel; import com.google.gwt.user.client.ui.RootPanel; import com.google.gwt.user.client.ui.SimplePanel; import com.google.gwt.user.client.ui.VerticalPanel; /** * <p> * --Dashboard class-- * </p> * * @author <a href="mailto:brozow@opennms.org">Mathew Brozowski</a> * @author <a href="mailto:dj@opennms.org">DJ Gregor</a> * @author <a href="mailto:brozow@opennms.org">Mathew Brozowski</a> * @author <a href="mailto:dj@opennms.org">DJ Gregor</a> * @version $Id: $ * @since 1.8.1 */ public class Dashboard implements EntryPoint, ErrorHandler { Dashlet m_surveillance; AlarmDashlet m_alarms; OutageDashlet m_outages; NodeStatusDashlet m_nodeStatus; NotificationDashlet m_notifications; GraphDashlet m_graphs; private SurveillanceServiceAsync m_surveillanceService; private BasicDBLayout dbLayout; private static RootPanel log; /** * <p> * onModuleLoad * </p> */ public void onModuleLoad() { StringBuilder mz = new StringBuilder(); try { // mz.append("###Start###"); // BasicDBLayout dbLayout = new VerticalDBLayout(); // DOM.setStyleAttribute(dbLayout.getElement(), "backgroundColor", // "pink"); // dbLayout.setPixelSize(1286, 600); // mz.append("###Layout panel adding to DOM###"); // RootPanel panel = RootPanel.get("dashboardDiv"); // if (panel == null) { // mz.append("###dashboard panel is null###"); // RootPanel.get().add(dbLayout); // mz.append("###Added to rootpanel###"); // } else { // mz.append("###dashboard panel is not null###"); // panel.add(dbLayout); // mz.append("###Added to dashboard panel###"); // } // mz.append("###Adding portlet 1###"); // SimplePanel p1=new SimplePanel(); // p1.setSize("100%", "100%"); // DOM.setStyleAttribute(p1.getElement(), "backgroundColor", // "yellow"); // IBasicPortlet B1=new Portlet("P1"); // B1.setContentSize(500, 400); // B1.setContent(p1); // dbLayout.addNewPortlet(B1); // mz.append("###Successfully dded portlet 1###"); // mz.append("###Adding portlet 2###"); // SimplePanel p2=new SimplePanel(); // p2.setSize("100%", "100%"); // DOM.setStyleAttribute(p2.getElement(), "backgroundColor", // "green"); // IBasicPortlet B2=new Portlet("P2"); // B2.setContentSize(500, 400); // B2.setContent(p2); // dbLayout.addNewPortlet(B2); // mz.append("###Successfully dded portlet 2###"); // mz.append("###Finish###"); // } catch (Exception e) { // mz.append("###Error###"); // mz.append("###"+e.getStackTrace()+"###"); // } mz.append("###Start###"); dbLayout = new VerticalDBLayout(); // DOM.setStyleAttribute(dbLayout.getElement(), "backgroundColor","pink"); dbLayout.setPixelSize(1286, 600); mz.append("###Layout panel adding to DOM###"); RootPanel panel = RootPanel.get("dashboardDiv"); if (panel == null) { mz.append("###dashboard panel is null###"); RootPanel.get().add(dbLayout); mz.append("###Added to rootpanel###"); } else { mz.append("###dashboard panel is not null###"); panel.add(dbLayout); mz.append("###Added to dashboard panel###"); } mz.append("###Adding portlet 1###"); add(createSurveillanceDashlet(dbLayout), "surveillanceView"); add(createAlarmDashlet(dbLayout), "alarms"); add(createGraphDashlet(dbLayout), "graphs"); add(createNotificationDashlet(dbLayout), "notifications"); //add(createOutageDashlet(), "outages"); add(createNodeStatusDashlet(dbLayout), "nodeStatus"); SimplePanel p1 = new SimplePanel(); p1.setSize("100%", "100%"); DOM.setStyleAttribute(p1.getElement(), "backgroundColor", "yellow"); IBasicPortlet B1 = new Portlet("P1z"); B1.setContentSize(500, 400); B1.setContent(p1); dbLayout.addNewPortlet(B1); mz.append("###Successfully dded portlet 1###"); mz.append("###Adding portlet 2###"); SimplePanel p2 = new SimplePanel(); p2.setSize("100%", "100%"); DOM.setStyleAttribute(p2.getElement(), "backgroundColor", "green"); IBasicPortlet B2 = new Dashlet(dbLayout, "P2z") { }; B2.setContentSize(500, 400); B2.setContent(p2); dbLayout.addNewPortlet(B2); setSurveillanceSet(SurveillanceSet.DEFAULT); } catch (Exception e) { mz.append("###Error###"); mz.append("###" + e.getStackTrace() + "###"); } log = RootPanel.get("log"); log(mz.toString()); } private GraphDashlet createGraphDashlet(BasicDBLayout dbLayout) { m_graphs = new GraphDashlet(dbLayout); m_graphs.setSurveillanceService(getSurveillanceService()); return m_graphs; } private NotificationDashlet createNotificationDashlet(BasicDBLayout dbLayout) { m_notifications = new NotificationDashlet(dbLayout); m_notifications.setSurveillanceService(getSurveillanceService()); return m_notifications; } // private OutageDashlet createOutageDashlet() { // m_outages = new OutageDashlet(this); // return m_outages; // } private AlarmDashlet createAlarmDashlet(BasicDBLayout dbLayout) { m_alarms = new AlarmDashlet(dbLayout); m_alarms.setSurveillanceService(getSurveillanceService()); m_alarms.setSurveillanceSet(SurveillanceSet.DEFAULT); return m_alarms; } private Dashlet createSurveillanceDashlet(BasicDBLayout dbLayout) { SurveillanceDashlet surveillance = new SurveillanceDashlet(dbLayout); SurveillanceListener listener = new SurveillanceListener() { public void onAllClicked(Dashlet viewer) { setSurveillanceSet(SurveillanceSet.DEFAULT); } public void onIntersectionClicked(Dashlet viewer, SurveillanceIntersection intersection) { setSurveillanceSet(intersection); } public void onSurveillanceGroupClicked(Dashlet viewer, SurveillanceGroup group) { setSurveillanceSet(group); } }; surveillance.addSurveillanceViewListener(listener); final SurveillanceServiceAsync svc = getSurveillanceService(); surveillance.setSurveillanceService(svc); m_surveillance = surveillance; return m_surveillance; } private SurveillanceServiceAsync getSurveillanceService() { if (m_surveillanceService == null) { String serviceEntryPoint = GWT.getHostPageBaseURL() + "surveillanceService.gwt"; // define the service you want to call final SurveillanceServiceAsync svc = (SurveillanceServiceAsync) GWT.create(SurveillanceService.class); ServiceDefTarget endpoint = (ServiceDefTarget) svc; endpoint.setServiceEntryPoint(serviceEntryPoint); m_surveillanceService = svc; } return m_surveillanceService; } private NodeStatusDashlet createNodeStatusDashlet(BasicDBLayout dbLayout) { m_nodeStatus = new NodeStatusDashlet(dbLayout); m_nodeStatus.setSurveillanceService(getSurveillanceService()); m_nodeStatus.setSurveillanceSet(SurveillanceSet.DEFAULT); return m_nodeStatus; } /** * <p> * add * </p> * * @param widget * a {@link com.google.gwt.user.client.ui.Widget} object. * @param elementId * a {@link java.lang.String} object. */ public void add(Portlet widget, String elementId) { // RootPanel panel = RootPanel.get(elementId); // if (panel == null) { // throw new // IllegalArgumentException("element with id '"+elementId+"' not found!"); // } // panel.add(widget); dbLayout.addNewPortlet(widget); } /** {@inheritDoc} */ public void error(Throwable e) { error(e.toString()); } /** * <p> * error * </p> * * @param err * a {@link java.lang.String} object. */ public void error(String err) { final DialogBox dialog = new DialogBox(); dialog.setText("Error Occurred"); VerticalPanel panel = new VerticalPanel(); HTMLPanel html = new HTMLPanel(err); html.setStyleName("Message"); panel.add(html); Button ok = new Button("OK"); SimplePanel buttonPanel = new SimplePanel(); buttonPanel.setWidget(ok); buttonPanel.setStyleName("Button"); panel.add(buttonPanel); dialog.setPopupPosition(Window.getScrollLeft() + 100, Window.getScrollTop() + 100); dialog.setWidget(panel); ok.addClickHandler(new ClickHandler() { public void onClick(ClickEvent arg0) { dialog.hide(); } }); dialog.show(); } private void setSurveillanceSet(SurveillanceSet set) { m_surveillance.setSurveillanceSet(set); m_alarms.setSurveillanceSet(set); m_graphs.setSurveillanceSet(set); m_notifications.setSurveillanceSet(set); m_nodeStatus.setSurveillanceSet(set); } public static void log(String mz) { if (log != null) { DOM.setInnerText(log.getElement(), mz); } } }