| /******************************************************************************* |
| * Copyright (c) 2000, 2007 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.pde.internal.ui.views.dependencies; |
| |
| import java.util.*; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.osgi.service.resolver.BundleDescription; |
| import org.eclipse.pde.core.plugin.IPluginModelBase; |
| |
| public class CallersListContentProvider extends CallersContentProvider implements IStructuredContentProvider { |
| |
| public CallersListContentProvider(DependenciesView view) { |
| super(view); |
| } |
| |
| /** |
| * @see IStructuredContentProvider#getElements(Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| // input IPluginModelBase |
| BundleDescription desc = null; |
| if (inputElement instanceof IPluginModelBase) { |
| desc = ((IPluginModelBase) inputElement).getBundleDescription(); |
| } else if (inputElement instanceof BundleDescription) { |
| desc = (BundleDescription) inputElement; |
| } |
| if (desc != null) { |
| Set callers = new HashSet(); |
| Set candidates = new HashSet(); |
| candidates.addAll(findReferences(desc)); |
| while (!candidates.isEmpty()) { |
| Set newCandidates = new HashSet(); |
| for (Iterator it = candidates.iterator(); it.hasNext();) { |
| Object o = it.next(); |
| it.remove(); |
| BundleDescription caller = (BundleDescription) o; |
| if (!callers.contains(caller)) { |
| callers.add(caller); |
| newCandidates.addAll(findReferences(caller)); |
| } |
| } |
| candidates = newCandidates; |
| |
| } |
| |
| return callers.toArray(); |
| } |
| return new Object[0]; |
| } |
| } |