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/*******************************************************************************
* Copyright (c) 2009 Oracle.
* 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:
* Oracle - initial API and implementation
*******************************************************************************/
package org.eclipse.jpt.common.ui.internal.jface;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.jpt.common.ui.JptCommonUiPlugin;
/**
* This filter will deny showing any file that are not JAR files or folders
* that don't contain any JAR files in its sub-hierarchy.
*/
public class ArchiveFileViewerFilter
extends ViewerFilter
{
private static final String[] archiveExtensions= { "jar", "zip" }; //$NON-NLS-1$ //$NON-NLS-2$
public ArchiveFileViewerFilter() {
super();
}
@Override
public boolean select(
Viewer viewer, Object parentElement, Object element) {
if (element instanceof IFile) {
return isArchivePath(((IFile)element).getFullPath());
}
else if (element instanceof IFolder) {
IFolder folder = (IFolder) element;
try {
for (IResource each : folder.members()) {
if (select(viewer, folder, each)) {
return true;
}
}
}
catch (CoreException ce) {
// just skip this one, then
JptCommonUiPlugin.log(ce);
}
}
return false;
}
public static boolean isArchivePath(IPath path) {
String ext= path.getFileExtension();
if (ext != null && ext.length() != 0) {
for (int i= 0; i < archiveExtensions.length; i++) {
if (ext.equalsIgnoreCase(archiveExtensions[i])) {
return true;
}
}
}
return false;
}
}
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