content: /*******************************************************************************
   * Copyright (c) 2006, 2008 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.wst.jsdt.internal.corext.refactoring.reorg;
  
  import org.eclipse.core.resources.IResource;
  import org.eclipse.core.runtime.CoreException;
  import org.eclipse.core.runtime.IProgressMonitor;
  import org.eclipse.core.runtime.OperationCanceledException;
  import org.eclipse.ltk.core.refactoring.Change;
  import org.eclipse.ltk.core.refactoring.RefactoringStatus;
  import org.eclipse.wst.jsdt.core.IJavaScriptElement;
  import org.eclipse.wst.jsdt.internal.corext.refactoring.Checks;
  import org.eclipse.wst.jsdt.internal.corext.refactoring.RefactoringCoreMessages;
  import org.eclipse.wst.jsdt.internal.corext.refactoring.base.JDTChange;
  import org.eclipse.wst.jsdt.internal.corext.util.Messages;
  import org.eclipse.wst.jsdt.ui.JavaScriptElementLabels;
  
  /**
   * Change to create move targets during scripting of move refactorings.
   * 
   * 
   */
  public final class LoggedCreateTargetChange extends JDTChange {
  
  	/** The queries */
  	private final ICreateTargetQueries fQueries;
  
  	/** The selection */
  	private Object fSelection;
  
  	/**
  	 * Creates a new logged create target change.
  	 * 
  	 * @param selection
  	 *            the selection
  	 * @param queries
  	 *            the queries
  	 */
  	public LoggedCreateTargetChange(Object selection, ICreateTargetQueries queries) {
  		fSelection= selection;
  		fQueries= queries;
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	public Object getModifiedElement() {
  		return null;
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	public String getName() {
  		return RefactoringCoreMessages.LoggedCreateTargetChange_change_name;
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	public RefactoringStatus isValid(IProgressMonitor monitor) throws CoreException, OperationCanceledException {
  		if (fSelection instanceof IJavaScriptElement) {
  			final IJavaScriptElement element= (IJavaScriptElement) fSelection;
  			if (!Checks.isAvailable(element))
  				RefactoringStatus.createFatalErrorStatus(Messages.format(RefactoringCoreMessages.RenameResourceChange_does_not_exist, JavaScriptElementLabels.getTextLabel(fSelection, JavaScriptElementLabels.ALL_DEFAULT)));
  		} else if (fSelection instanceof IResource) {
  			final IResource resource= (IResource) fSelection;
  			if (!resource.exists())
  				RefactoringStatus.createFatalErrorStatus(Messages.format(RefactoringCoreMessages.RenameResourceChange_does_not_exist, JavaScriptElementLabels.getTextLabel(fSelection, JavaScriptElementLabels.ALL_DEFAULT)));
  		}
  		return new RefactoringStatus();
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	public Change perform(IProgressMonitor monitor) throws CoreException {
  		fQueries.createNewPackageQuery().getCreatedTarget(fSelection);
  		return null;
  	}
  }
  