blob: d6b327ae0d046330a79a3a8f148d2bc91af4c86b [file] [log] [blame]
/*******************************************************************************
* 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();
}
}
}