| /******************************************************************************* |
| * Copyright (c) 2000, 2018 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.debug.internal.ui.sourcelookup.browsers; |
| |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.debug.core.sourcelookup.ISourceContainer; |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| import org.eclipse.swt.custom.BusyIndicator; |
| |
| /** |
| * ArchiveFilter |
| */ |
| public class ArchiveFilter extends ViewerFilter { |
| |
| /** |
| * Collection of archives and containers to display |
| */ |
| private Set<IResource> fArchives; |
| |
| /** |
| * Collection of already existing archives |
| */ |
| private List<ISourceContainer> fExisting; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| @Override |
| public boolean select(Viewer viewer, Object parentElement, Object element) { |
| return fArchives.contains(element) && !fExisting.contains(element); |
| } |
| |
| /** |
| * Constructs a new filter to display archives and their containers, |
| * excluding the resources in the given list. |
| * |
| * @param objects resources to exclude |
| */ |
| public ArchiveFilter(List<ISourceContainer> objects) { |
| fExisting = objects; |
| init(); |
| } |
| |
| /** |
| * Search for all archives in the workspace. |
| */ |
| private void init() { |
| BusyIndicator.showWhile(DebugUIPlugin.getStandardDisplay(), () -> { |
| fArchives = new HashSet<>(); |
| traverse(ResourcesPlugin.getWorkspace().getRoot(), fArchives); |
| }); |
| } |
| |
| /** |
| * Traverse the given container, adding archives to the given set. |
| * Returns whether any files were added |
| * @param container the container to check |
| * @param set the set to add any found archives to |
| * @return <code>true</code> if any archives have been added false otherwise |
| */ |
| private boolean traverse(IContainer container, Set<IResource> set) { |
| boolean added = false; |
| try { |
| IResource[] resources = container.members(); |
| for (int i = 0; i < resources.length; i++) { |
| IResource resource = resources[i]; |
| if (resource instanceof IFile) { |
| IFile file = (IFile)resource; |
| String ext = file.getFileExtension(); |
| if (ext != null && (ext.equalsIgnoreCase("jar") || ext.equalsIgnoreCase("zip"))) { //$NON-NLS-1$ //$NON-NLS-2$ |
| set.add(file); |
| added = true; |
| } |
| } else if (resource instanceof IContainer) { |
| if (traverse((IContainer)resource, set)) { |
| set.add(resource); |
| added = true; |
| } |
| } |
| } |
| } catch (CoreException e) { |
| } |
| return added; |
| } |
| } |