org.argeo.cms.e4/src/org/argeo/cms/e4/monitoring/ModulesView.java

   1 package org.argeo.cms.e4.monitoring;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 import javax.annotation.PostConstruct;
   7
   8 import org.argeo.eclipse.ui.TreeParent;
   9 import org.eclipse.e4.ui.di.Focus;
  10 import org.eclipse.jface.viewers.ITreeContentProvider;
  11 import org.eclipse.jface.viewers.TreeViewer;
  12 import org.eclipse.jface.viewers.Viewer;
  13 import org.eclipse.swt.SWT;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.osgi.framework.Bundle;
  16 import org.osgi.framework.BundleContext;
  17 import org.osgi.framework.FrameworkUtil;
  18
  19 /** The OSGi runtime from a module perspective. */
  20 public class ModulesView {
  21         private final static BundleContext bc = FrameworkUtil.getBundle(ModulesView.class).getBundleContext();
  22         private TreeViewer viewer;
  23
  24         @PostConstruct
  25         public void createPartControl(Composite parent) {
  26                 viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
  27                 viewer.setContentProvider(new ModulesContentProvider());
  28                 viewer.setLabelProvider(new ModulesLabelProvider());
  29                 viewer.setInput(bc);
  30         }
  31
  32         @Focus
  33         public void setFocus() {
  34                 viewer.getTree().setFocus();
  35         }
  36
  37         private class ModulesContentProvider implements ITreeContentProvider {
  38                 private static final long serialVersionUID = 3819934804640641721L;
  39
  40                 public Object[] getElements(Object inputElement) {
  41                         return getChildren(inputElement);
  42                 }
  43
  44                 public Object[] getChildren(Object parentElement) {
  45                         if (parentElement instanceof BundleContext) {
  46                                 BundleContext bundleContext = (BundleContext) parentElement;
  47                                 Bundle[] bundles = bundleContext.getBundles();
  48
  49                                 List<BundleNode> modules = new ArrayList<BundleNode>();
  50                                 for (Bundle bundle : bundles) {
  51                                         if (bundle.getState() == Bundle.ACTIVE)
  52                                                 modules.add(new BundleNode(bundle, true));
  53                                 }
  54                                 return modules.toArray();
  55                         } else if (parentElement instanceof TreeParent) {
  56                                 return ((TreeParent) parentElement).getChildren();
  57                         } else {
  58                                 return null;
  59                         }
  60                 }
  61
  62                 public Object getParent(Object element) {
  63                         // TODO Auto-generated method stub
  64                         return null;
  65                 }
  66
  67                 public boolean hasChildren(Object element) {
  68                         if (element instanceof TreeParent) {
  69                                 return ((TreeParent) element).hasChildren();
  70                         }
  71                         return false;
  72                 }
  73
  74                 public void dispose() {
  75                 }
  76
  77                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  78                 }
  79         }
  80
  81         private class ModulesLabelProvider extends StateLabelProvider {
  82                 private static final long serialVersionUID = 5290046145534824722L;
  83
  84                 @Override
  85                 public String getText(Object element) {
  86                         if (element instanceof BundleNode)
  87                                 return element.toString() + " [" + ((BundleNode) element).getBundle().getBundleId() + "]";
  88                         return element.toString();
  89                 }
  90         }
  91 }