org.argeo.eclipse.ui.workbench/src/org/argeo/eclipse/ui/workbench/osgi/ModulesView.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.eclipse.ui.workbench.osgi;
  17
  18 import java.util.ArrayList;
  19 import java.util.List;
  20
  21 import org.argeo.eclipse.ui.TreeParent;
  22 import org.argeo.eclipse.ui.workbench.WorkbenchUiPlugin;
  23 import org.eclipse.jface.viewers.ITreeContentProvider;
  24 import org.eclipse.jface.viewers.TreeViewer;
  25 import org.eclipse.jface.viewers.Viewer;
  26 import org.eclipse.swt.SWT;
  27 import org.eclipse.swt.widgets.Composite;
  28 import org.eclipse.ui.part.ViewPart;
  29 import org.osgi.framework.Bundle;
  30 import org.osgi.framework.BundleContext;
  31
  32 /** The OSGi runtime from a module perspective. */
  33 public class ModulesView extends ViewPart {
  34         private TreeViewer viewer;
  35
  36         @Override
  37         public void createPartControl(Composite parent) {
  38                 viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
  39                 viewer.setContentProvider(new ModulesContentProvider());
  40                 viewer.setLabelProvider(new ModulesLabelProvider());
  41                 viewer.setInput(WorkbenchUiPlugin.getDefault().getBundle()
  42                                 .getBundleContext());
  43         }
  44
  45         @Override
  46         public void setFocus() {
  47                 viewer.getTree().setFocus();
  48         }
  49
  50         private class ModulesContentProvider implements ITreeContentProvider {
  51                 private static final long serialVersionUID = 3819934804640641721L;
  52
  53                 public Object[] getElements(Object inputElement) {
  54                         return getChildren(inputElement);
  55                 }
  56
  57                 public Object[] getChildren(Object parentElement) {
  58                         if (parentElement instanceof BundleContext) {
  59                                 BundleContext bundleContext = (BundleContext) parentElement;
  60                                 Bundle[] bundles = bundleContext.getBundles();
  61
  62                                 List<BundleNode> modules = new ArrayList<BundleNode>();
  63                                 for (Bundle bundle : bundles) {
  64                                         if (bundle.getState() == Bundle.ACTIVE)
  65                                                 modules.add(new BundleNode(bundle, true));
  66                                 }
  67                                 return modules.toArray();
  68                         } else if (parentElement instanceof TreeParent) {
  69                                 return ((TreeParent) parentElement).getChildren();
  70                         } else {
  71                                 return null;
  72                         }
  73                 }
  74
  75                 public Object getParent(Object element) {
  76                         // TODO Auto-generated method stub
  77                         return null;
  78                 }
  79
  80                 public boolean hasChildren(Object element) {
  81                         if (element instanceof TreeParent) {
  82                                 return ((TreeParent) element).hasChildren();
  83                         }
  84                         return false;
  85                 }
  86
  87                 public void dispose() {
  88                 }
  89
  90                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  91                 }
  92         }
  93
  94         private class ModulesLabelProvider extends StateLabelProvider {
  95                 private static final long serialVersionUID = 5290046145534824722L;
  96
  97                 @Override
  98                 public String getText(Object element) {
  99                         if (element instanceof BundleNode)
 100                                 return element.toString() + " ["
 101                                                 + ((BundleNode) element).getBundle().getBundleId()
 102                                                 + "]";
 103                         return element.toString();
 104                 }
 105         }
 106 }