1 files changed, 71 insertions, 0 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/jface/ArchiveFileViewerFilter.java b/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/jface/ArchiveFileViewerFilter.java
new file mode 100644
index 0000000000..3f66b67618
--- /dev/null
+++ b/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/jface/ArchiveFileViewerFilter.java
@@ -0,0 +1,71 @@
+/*******************************************************************************
+ *  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.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.ui.JptUiPlugin;
+
+/**
+ * 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" }; //$NON-NLS-1$ 
+	
+	
+	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
+				JptUiPlugin.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;
+	}		
+}