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/*******************************************************************************
* Copyright (c) 2000, 2006 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.xsd.ui.internal.refactor.rename;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.ltk.core.refactoring.Change;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext;
import org.eclipse.ltk.core.refactoring.participants.ParticipantManager;
import org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant;
import org.eclipse.ltk.core.refactoring.participants.RenameArguments;
import org.eclipse.ltk.core.refactoring.participants.RenameProcessor;
import org.eclipse.ltk.core.refactoring.participants.SharableParticipants;
import org.eclipse.wst.xsd.ui.internal.refactor.INameUpdating;
import org.eclipse.wst.xsd.ui.internal.refactor.RefactoringMessages;
public class RenameResourceProcessor extends RenameProcessor implements INameUpdating {
private IResource fResource;
private String fNewElementName;
public static final String IDENTIFIER= "org.eclipse.wst.ui.xsd.renameResourceProcessor"; //$NON-NLS-1$
public RenameResourceProcessor(IResource resource) {
fResource= resource;
if (fResource != null) {
setNewElementName(fResource.getName());
}
}
//---- INameUpdating ---------------------------------------------------
public void setNewElementName(String newName) {
Assert.isNotNull(newName);
fNewElementName= newName;
}
public String getNewElementName() {
return fNewElementName;
}
//---- IRenameProcessor methods ---------------------------------------
public String getIdentifier() {
return IDENTIFIER;
}
public boolean isApplicable() {
if (fResource == null)
return false;
if (! fResource.exists())
return false;
if (! fResource.isAccessible())
return false;
return true;
}
public String getProcessorName() {
String message= RefactoringMessages.getFormattedString("RenameResourceProcessor.name", //$NON-NLS-1$
new String[]{getCurrentElementName(), getNewElementName()});
return message;
}
public Object[] getElements() {
return new Object[] {fResource};
}
public String getCurrentElementName() {
return fResource.getName();
}
public String[] getAffectedProjectNatures() throws CoreException {
return new String[0];
}
public Object getNewElement() {
return ResourcesPlugin.getWorkspace().getRoot().findMember(createNewPath(getNewElementName()));
}
public boolean getUpdateReferences() {
return true;
}
public RefactoringParticipant[] loadParticipants(RefactoringStatus status, SharableParticipants shared) throws CoreException {
Object[] elements= getElements();
String[] natures= getAffectedProjectNatures();
List result= new ArrayList();
RenameArguments arguments= new RenameArguments(getNewElementName(), getUpdateReferences());
for (int i= 0; i < elements.length; i++) {
result.addAll(Arrays.asList(ParticipantManager.loadRenameParticipants(status,
this, elements[i],
arguments, natures, shared)));
}
return (RefactoringParticipant[])result.toArray(new RefactoringParticipant[result.size()]);
}
//--- Condition checking --------------------------------------------
public RefactoringStatus checkInitialConditions(IProgressMonitor pm) throws CoreException {
return new RefactoringStatus();
}
/* non java-doc
* @see IRenameRefactoring#checkNewName()
*/
public RefactoringStatus checkNewElementName(String newName) {
Assert.isNotNull(newName, "new name"); //$NON-NLS-1$
IContainer c= fResource.getParent();
if (c == null)
return RefactoringStatus.createFatalErrorStatus(RefactoringMessages.getString("RenameResourceRefactoring.Internal_Error")); //$NON-NLS-1$
if (c.findMember(newName) != null)
return RefactoringStatus.createFatalErrorStatus(RefactoringMessages.getString("RenameResourceRefactoring.alread_exists")); //$NON-NLS-1$
if (!c.getFullPath().isValidSegment(newName))
return RefactoringStatus.createFatalErrorStatus(RefactoringMessages.getString("RenameResourceRefactoring.invalidName")); //$NON-NLS-1$
RefactoringStatus result= RefactoringStatus.create(c.getWorkspace().validateName(newName, fResource.getType()));
if (! result.hasFatalError())
result.merge(RefactoringStatus.create(c.getWorkspace().validatePath(createNewPath(newName), fResource.getType())));
return result;
}
/* non java-doc
* @see Refactoring#checkInput(IProgressMonitor)
*/
public RefactoringStatus checkFinalConditions(IProgressMonitor pm, CheckConditionsContext context) {
pm.beginTask("", 1); //$NON-NLS-1$
try{
return new RefactoringStatus();
} finally{
pm.done();
}
}
private String createNewPath(String newName){
return fResource.getFullPath().removeLastSegments(1).append(newName).toString();
}
//--- changes
/* non java-doc
* @see IRefactoring#createChange(IProgressMonitor)
*/
public Change createChange(IProgressMonitor pm) {
pm.beginTask("", 1); //$NON-NLS-1$
try{
return new ResourceRenameChange(fResource, getNewElementName());
} finally{
pm.done();
}
}
}
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