| /******************************************************************************* |
| * Copyright (c) 2001, 2008 Oracle 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: |
| * Oracle Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.jsf.context.resolver.structureddocument.internal; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jst.jsf.context.resolver.structureddocument.IStructuredDocumentContextResolverFactory; |
| import org.eclipse.jst.jsf.context.resolver.structureddocument.IWorkspaceContextResolver; |
| import org.eclipse.jst.jsf.context.structureddocument.IStructuredDocumentContext; |
| import org.eclipse.jst.jsf.context.structureddocument.IStructuredDocumentContextFactory; |
| |
| /** |
| * Internal convenience class to simplify regularly repeated tasks |
| * @author cbateman |
| * |
| */ |
| public final class ResolverUtil |
| { |
| /** |
| * This method will generally only work if the document is an |
| * IStructuredDocument. |
| * |
| * @param document |
| * @return the IFile corresponding to document or null if not applicable. |
| * |
| */ |
| public static IFile getFileForDocument(final IDocument document) |
| { |
| final IStructuredDocumentContext context = |
| IStructuredDocumentContextFactory.INSTANCE.getContext(document, |
| -1); |
| |
| if (context != null) |
| { |
| final IWorkspaceContextResolver wkResolver = |
| IStructuredDocumentContextResolverFactory.INSTANCE |
| .getWorkspaceContextResolver(context); |
| |
| if (wkResolver != null) |
| { |
| final IResource res = wkResolver.getResource(); |
| |
| if (res instanceof IFile) |
| { |
| return (IFile) res; |
| } |
| } |
| } |
| return null; |
| } |
| |
| private ResolverUtil() |
| { |
| // no instantiation |
| throw new UnsupportedOperationException(); |
| } |
| } |