| /******************************************************************************* |
| * Copyright (c) 2000, 2016 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.jdt.core.refactoring; |
| |
| import org.eclipse.osgi.util.TextProcessor; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.SubMonitor; |
| |
| import org.eclipse.core.resources.IFile; |
| |
| import org.eclipse.text.edits.UndoEdit; |
| |
| import org.eclipse.ltk.core.refactoring.Change; |
| import org.eclipse.ltk.core.refactoring.ContentStamp; |
| import org.eclipse.ltk.core.refactoring.UndoTextFileChange; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| |
| import org.eclipse.jdt.internal.core.manipulation.JavaManipulationMessages; |
| import org.eclipse.jdt.internal.core.manipulation.JavaManipulationPlugin; |
| import org.eclipse.jdt.internal.core.manipulation.Messages; |
| |
| /* package */ class UndoCompilationUnitChange extends UndoTextFileChange { |
| |
| private ICompilationUnit fCUnit; |
| |
| public UndoCompilationUnitChange(String name, ICompilationUnit unit, UndoEdit undo, ContentStamp stampToRestore, int saveMode) throws CoreException { |
| super(name, getFile(unit), undo, stampToRestore, saveMode); |
| fCUnit= unit; |
| } |
| |
| private static IFile getFile(ICompilationUnit cunit) throws CoreException { |
| IFile file= (IFile)cunit.getResource(); |
| if (file == null) { |
| String message= Messages.format(JavaManipulationMessages.UndoCompilationUnitChange_no_file, TextProcessor.process(cunit.getElementName())); |
| throw new CoreException(new Status(IStatus.ERROR, JavaManipulationPlugin.getPluginId(), message)); |
| } |
| return file; |
| } |
| |
| @Override |
| public Object getModifiedElement() { |
| return fCUnit; |
| } |
| |
| @Override |
| protected Change createUndoChange(UndoEdit edit, ContentStamp stampToRestore) throws CoreException { |
| return new UndoCompilationUnitChange(getName(), fCUnit, edit, stampToRestore, getSaveMode()); |
| } |
| |
| @Override |
| public Change perform(IProgressMonitor pm) throws CoreException { |
| SubMonitor subMonitor= SubMonitor.convert(pm, 2); |
| fCUnit.becomeWorkingCopy(subMonitor.split(1)); |
| try { |
| return super.perform(subMonitor.split(1)); |
| } finally { |
| fCUnit.discardWorkingCopy(); |
| } |
| } |
| } |