security/plugins/org.argeo.security.ui/src/main/java/org/argeo/security/ui/views/LogView.java

   1 package org.argeo.security.ui.views;
   2
   3 import java.util.ArrayList;
   4
   5 import org.argeo.ArgeoLogListener;
   6 import org.argeo.security.ui.SecurityUiPlugin;
   7 import org.eclipse.jface.viewers.LabelProvider;
   8 import org.eclipse.jface.viewers.TableViewer;
   9 import org.eclipse.swt.SWT;
  10 import org.eclipse.swt.widgets.Composite;
  11 import org.eclipse.ui.part.ViewPart;
  12 import org.osgi.framework.BundleContext;
  13 import org.osgi.framework.ServiceRegistration;
  14
  15 /**
  16  * Display log lines with a virtual table. Register and unregisters a
  17  * {@link ArgeoLogListener} via OSGi services.
  18  */
  19 public class LogView extends ViewPart {
  20         public static String ID = SecurityUiPlugin.PLUGIN_ID + ".logView";
  21
  22         private TableViewer viewer;
  23
  24         private LogContentProvider logContentProvider;
  25
  26         private ServiceRegistration serviceRegistration;
  27
  28         @Override
  29         public void createPartControl(Composite parent) {
  30                 viewer = new TableViewer(parent, SWT.VIRTUAL);
  31                 viewer.setLabelProvider(new LabelProvider());
  32                 logContentProvider = new LogContentProvider(viewer);
  33                 serviceRegistration = getBundleContext().registerService(
  34                                 ArgeoLogListener.class.getName(), logContentProvider, null);
  35                 viewer.setContentProvider(logContentProvider);
  36                 viewer.setUseHashlookup(true);
  37                 viewer.setInput(new ArrayList<String>());
  38         }
  39
  40         @Override
  41         public void setFocus() {
  42                 viewer.getTable().setFocus();
  43         }
  44
  45         @Override
  46         public void dispose() {
  47                 if (serviceRegistration != null)
  48                         serviceRegistration.unregister();
  49         }
  50
  51         private BundleContext getBundleContext() {
  52                 return SecurityUiPlugin.getDefault().getBundle().getBundleContext();
  53         }
  54 }