Java tutorial
/******************************************************************************* * ALMA - Atacama Large Millimeter Array * Copyright (c) ESO - European Southern Observatory, 2011 * (in the framework of the ALMA collaboration). * All rights reserved. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *******************************************************************************/ package alma.acs.eventbrowser.parts; import java.util.logging.Logger; import javax.annotation.PostConstruct; import javax.annotation.PreDestroy; import javax.inject.Inject; import org.eclipse.core.runtime.IStatus; import org.eclipse.e4.core.services.events.IEventBroker; import org.eclipse.e4.core.services.statusreporter.StatusReporter; import org.eclipse.e4.ui.di.Focus; import org.eclipse.e4.ui.di.UISynchronize; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TableViewerColumn; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import alma.acs.eventbrowser.model.ArchiveEventData; import alma.acs.eventbrowser.model.EventModel; import alma.acs.eventbrowser.status.StatusLineWriter; /** * The "archiving list" displays events from the archiving NC, which contain monitoring data from baci properties. * The event data format is different from "normal" NCs. * <p> * Currently this view is simpler than the EventListPart, without view/context menu nor event details. * This means that there is no way to show the values of array type events besides something like "[F@2445d7". * Alma is not using this NC monitoring/archiving mechanism any more, so that we are not likely to enhance this view further. */ public class ArchivingListPart implements IEventListPart { @Inject private UISynchronize uiSync; private TableViewer viewer; private EventModel em; private PopulateEventList pel; private Logger logger; /** * Blocking (popup) status report. */ @Inject private StatusReporter statusReporter; private Thread eventListThread; public ArchivingListPart() { } @PostConstruct public void postConstruct(Composite parent, IEventBroker eventBroker) { try { em = EventModel.getInstance(); } catch (Throwable thr) { thr.printStackTrace(); IStatus someStatus = statusReporter.newStatus(IStatus.ERROR, "Connection with NCs failed.", thr); statusReporter.report(someStatus, StatusReporter.SHOW); throw new RuntimeException(thr); } logger = em.getLogger(); GridLayout gridLayout = new GridLayout(); gridLayout.marginHeight = 0; gridLayout.marginWidth = 0; gridLayout.verticalSpacing = 0; parent.setLayout(gridLayout); // buildCustomToolBar(parent); viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL); Table table = viewer.getTable(); table.setHeaderVisible(true); table.setLinesVisible(true); /* * "Time "+timeStamp+" "+m_channelName+" "+component+" "+count+" * "+channelEventCount+" " +" "+evtTypeName+" * "+evtCounter.get(evtTypeName) */ TableViewerColumn tvcol = new TableViewerColumn(viewer, SWT.NONE, 0); tvcol.setLabelProvider(new TimeStampLabelProvider()); TableColumn col = tvcol.getColumn(); col.setText("Timestamp"); col.setWidth(190); col.setAlignment(SWT.LEFT); tvcol = new TableViewerColumn(viewer, SWT.NONE, 1); tvcol.setLabelProvider(new EventSourceLabelProvider()); col = tvcol.getColumn(); col.setText("Device"); col.setWidth(100); col.setAlignment(SWT.LEFT); tvcol = new TableViewerColumn(viewer, SWT.NONE, 2); tvcol.setLabelProvider(new BaciParameterLabelProvider()); col = tvcol.getColumn(); col.setText("Property"); col.setWidth(100); col.setAlignment(SWT.LEFT); tvcol = new TableViewerColumn(viewer, SWT.NONE, 3); tvcol.setLabelProvider(new BaciPropertyValueLabelProvider()); col = tvcol.getColumn(); col.setText("Value"); col.setWidth(100); col.setAlignment(SWT.LEFT); GridDataFactory.fillDefaults().grab(true, true).applyTo(viewer.getTable()); viewer.setContentProvider(new ArchivingListContentProvider(em)); viewer.setInput(new Object()); pel = new PopulateEventList(logger, viewer, new StatusLineWriter(eventBroker), em.getArchQueue(), "Monitor points"); eventListThread = pel.getThreadForEventList(); eventListThread.start(); } /** * Currently (when porting eventGUI from e3 to e4), there is no filtering * available for the archive list. * We could have just not implemented IEventListPart, but anyway put an empty * implementation here to show how this archiving list could also have a ToolBar with an EventListFilterToolControl. * * @see alma.acs.eventGui2.parts.IEventListPart#notifyEventTypeFilterChange(java.lang.String) */ @Override public void notifyEventTypeFilterChanged(final String filterText) { } /** * Currently not called (there is no corresponding menu / command). * * @see alma.acs.eventbrowser.parts.IEventListPart#clearList() */ @Override public void clearList() { viewer.getTable().removeAll(); viewer.refresh(); } @Focus public void setFocus() { viewer.getTable().setFocus(); } @PreDestroy public void preDestroy() { eventListThread.interrupt(); em.closeArchiveConsumer(); logger.info("Average archiving rate: " + ArchiveEventData.getAverageRate() + " monitor points/s"); } }