case-study/jdt-before/core refactoring/org/eclipse/jdt/internal/corext/refactoring/changes/RenameCompilationUnitChange.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2011 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.corext.refactoring.changes;
  12
  13 import org.eclipse.core.runtime.Assert;
  14 import org.eclipse.core.runtime.CoreException;
  15 import org.eclipse.core.runtime.IPath;
  16 import org.eclipse.core.runtime.IProgressMonitor;
  17
  18 import org.eclipse.core.resources.IResource;
  19
  20 import org.eclipse.ltk.core.refactoring.Change;
  21
  22 import org.eclipse.jdt.core.ICompilationUnit;
  23 import org.eclipse.jdt.core.JavaModelException;
  24
  25 import org.eclipse.jdt.internal.corext.refactoring.AbstractJavaElementRenameChange;
  26 import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages;
  27 import org.eclipse.jdt.internal.corext.util.Messages;
  28
  29 import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels;
  30
  31 public final class RenameCompilationUnitChange extends AbstractJavaElementRenameChange {
  32
  33         public RenameCompilationUnitChange(ICompilationUnit unit, String newName) {
  34                 this(unit.getResource().getFullPath(), unit.getElementName(), newName, IResource.NULL_STAMP);
  35                 Assert.isTrue(!unit.isReadOnly(), "compilation unit must not be read-only"); //$NON-NLS-1$
  36         }
  37
  38         private RenameCompilationUnitChange(IPath resourcePath, String oldName, String newName, long stampToRestore) {
  39                 super(resourcePath, oldName, newName, stampToRestore);
  40
  41                 setValidationMethod(VALIDATE_NOT_READ_ONLY | SAVE_IF_DIRTY);
  42         }
  43
  44         @Override
  45         protected IPath createNewPath() {
  46                 final IPath path= getResourcePath();
  47                 if (path.getFileExtension() != null)
  48                         return path.removeFileExtension().removeLastSegments(1).append(getNewName());
  49                 else
  50                         return path.removeLastSegments(1).append(getNewName());
  51         }
  52
  53         @Override
  54         protected Change createUndoChange(long stampToRestore) throws JavaModelException {
  55                 return new RenameCompilationUnitChange(createNewPath(), getNewName(), getOldName(), stampToRestore);
  56         }
  57
  58         @Override
  59         protected void doRename(IProgressMonitor pm) throws CoreException {
  60                 ICompilationUnit cu= (ICompilationUnit) getModifiedElement();
  61                 if (cu != null)
  62                         cu.rename(getNewName(), false, pm);
  63         }
  64
  65         @Override
  66         public String getName() {
  67                 String[] keys= new String[] { BasicElementLabels.getJavaElementName(getOldName()), BasicElementLabels.getJavaElementName(getNewName())};
  68                 return Messages.format(RefactoringCoreMessages.RenameCompilationUnitChange_name, keys);
  69         }
  70 }