/** @see MultiOperation */
protected void verify(IJavaElement element) throws JavaModelException {
if (element == null || !element.exists())
error(IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST, element);
if (element.isReadOnly() && (isRename() || isMove()))
error(IJavaModelStatusConstants.READ_ONLY, element);
IResource resource = ((JavaElement) element).resource();
if (resource instanceof IFolder) {
if (resource.isLinked()) {
error(IJavaModelStatusConstants.INVALID_RESOURCE, element);
}
}
int elementType = element.getElementType();
if (elementType == IJavaElement.COMPILATION_UNIT) {
org.eclipse.jdt.internal.core.CompilationUnit compilationUnit =
(org.eclipse.jdt.internal.core.CompilationUnit) element;
if (isMove() && compilationUnit.isWorkingCopy() && !compilationUnit.isPrimary())
error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
} else if (elementType != IJavaElement.PACKAGE_FRAGMENT) {
error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
}
JavaElement dest = (JavaElement) getDestinationParent(element);
verifyDestination(element, dest);
if (this.renamings != null) {
verifyRenaming(element);
}
}
private static String getRenameKind(IJavaElement e) {
switch (e.getElementType()) {
case IJavaElement.COMPILATION_UNIT:
return IJavaRefactorings.RENAME_COMPILATION_UNIT;
case IJavaElement.FIELD:
return IJavaRefactorings.RENAME_FIELD;
case IJavaElement.LOCAL_VARIABLE:
return IJavaRefactorings.RENAME_LOCAL_VARIABLE;
case IJavaElement.METHOD:
return IJavaRefactorings.RENAME_METHOD;
case IJavaElement.TYPE:
return IJavaRefactorings.RENAME_TYPE;
case IJavaElement.TYPE_PARAMETER:
return IJavaRefactorings.RENAME_TYPE_PARAMETER;
case IJavaElement.PACKAGE_FRAGMENT:
return IJavaRefactorings.RENAME_PACKAGE;
case IJavaElement.PACKAGE_FRAGMENT_ROOT:
return IJavaRefactorings.RENAME_PACKAGE;
default:
throw new RuntimeException("Unexpected object `" + e.getClass() + "' to rename");
}
}
/**
* Sets the deltas to register the changes resulting from this operation for this source element
* and its destination. If the operation is a cross project operation
*
* <ul>
* <li>On a copy, the delta should be rooted in the dest project
* <li>On a move, two deltas are generated
* <ul>
* <li>one rooted in the source project
* <li>one rooted in the destination project
* </ul>
* </ul>
*
* If the operation is rooted in a single project, the delta is rooted in that project
*/
protected void prepareDeltas(
IJavaElement sourceElement, IJavaElement destinationElement, boolean isMove) {
if (Util.isExcluded(sourceElement) || Util.isExcluded(destinationElement)) return;
IJavaProject destProject = destinationElement.getJavaProject();
if (isMove) {
IJavaProject sourceProject = sourceElement.getJavaProject();
getDeltaFor(sourceProject).movedFrom(sourceElement, destinationElement);
getDeltaFor(destProject).movedTo(destinationElement, sourceElement);
} else {
getDeltaFor(destProject).added(destinationElement);
}
}
private IResource getResource(IJavaElement element) {
if (element == null) return null;
if (element.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
String pkgName = element.getElementName();
int firstDot = pkgName.indexOf('.');
if (firstDot != -1) {
element =
((IPackageFragmentRoot) element.getParent())
.getPackageFragment(pkgName.substring(0, firstDot));
}
}
return element.getResource();
}
/**
* @see MultiOperation This method delegates to <code>processCompilationUnitResource</code> or
* <code>processPackageFragmentResource</code>, depending on the type of <code>element</code>.
*/
protected void processElement(IJavaElement element) throws JavaModelException {
IJavaElement dest = getDestinationParent(element);
switch (element.getElementType()) {
case IJavaElement.COMPILATION_UNIT:
processCompilationUnitResource((ICompilationUnit) element, (PackageFragment) dest);
this.createdElements.add(
((IPackageFragment) dest).getCompilationUnit(element.getElementName()));
break;
case IJavaElement.PACKAGE_FRAGMENT:
processPackageFragmentResource(
(PackageFragment) element, (PackageFragmentRoot) dest, getNewNameFor(element));
break;
default:
throw new JavaModelException(
new JavaModelStatus(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element));
}
}
/**
* Returns the children of <code>source</code> which are affected by this operation. If <code>
* source</code> is a <code>K_SOURCE</code>, these are the <code>.java</code> files, if it is a
* <code>K_BINARY</code>, they are the <code>.class</code> files.
*/
private IResource[] collectResourcesOfInterest(IPackageFragment source)
throws JavaModelException {
IJavaElement[] children = source.getChildren();
int childOfInterest = IJavaElement.COMPILATION_UNIT;
if (source.getKind() == IPackageFragmentRoot.K_BINARY) {
childOfInterest = IJavaElement.CLASS_FILE;
}
ArrayList correctKindChildren = new ArrayList(children.length);
for (int i = 0; i < children.length; i++) {
IJavaElement child = children[i];
if (child.getElementType() == childOfInterest) {
correctKindChildren.add(((JavaElement) child).resource());
}
}
// Gather non-java resources
Object[] nonJavaResources = source.getNonJavaResources();
int actualNonJavaResourceCount = 0;
for (int i = 0, max = nonJavaResources.length; i < max; i++) {
if (nonJavaResources[i] instanceof IResource) actualNonJavaResourceCount++;
}
IResource[] actualNonJavaResources = new IResource[actualNonJavaResourceCount];
for (int i = 0, max = nonJavaResources.length, index = 0; i < max; i++) {
if (nonJavaResources[i] instanceof IResource)
actualNonJavaResources[index++] = (IResource) nonJavaResources[i];
}
if (actualNonJavaResourceCount != 0) {
int correctKindChildrenSize = correctKindChildren.size();
IResource[] result = new IResource[correctKindChildrenSize + actualNonJavaResourceCount];
correctKindChildren.toArray(result);
System.arraycopy(
actualNonJavaResources, 0, result, correctKindChildrenSize, actualNonJavaResourceCount);
return result;
} else {
IResource[] result = new IResource[correctKindChildren.size()];
correctKindChildren.toArray(result);
return result;
}
}
private ISchedulingRule getSchedulingRule(IJavaElement element) {
if (element == null) return null;
IResource sourceResource = getResource(element);
IResource destContainer = getResource(getDestinationParent(element));
if (!(destContainer instanceof IContainer)) {
return null;
}
String newName;
try {
newName = getNewNameFor(element);
} catch (JavaModelException e) {
return null;
}
if (newName == null) newName = element.getElementName();
IResource destResource;
String sourceEncoding = null;
if (sourceResource.getType() == IResource.FILE) {
destResource = ((IContainer) destContainer).getFile(new Path(newName));
try {
sourceEncoding = ((IFile) sourceResource).getCharset(false);
} catch (CoreException ce) {
// use default encoding
}
} else {
destResource = ((IContainer) destContainer).getFolder(new Path(newName));
}
IResourceRuleFactory factory = ResourcesPlugin.getWorkspace().getRuleFactory();
ISchedulingRule rule;
if (isMove()) {
rule = factory.moveRule(sourceResource, destResource);
} else {
rule = factory.copyRule(sourceResource, destResource);
}
if (sourceEncoding != null) {
rule = new MultiRule(new ISchedulingRule[] {rule, factory.charsetRule(destResource)});
}
return rule;
}
public JavaRefactoringDescriptor buildEclipseDescriptor() throws Exception {
System.err.println("[eclipse-rename] Building descriptor...");
IJavaElement element = location.getIJavaElement();
String kind = getRenameKind(element);
// [1] BUGFIX was needed: The scripting interface didn't allow VariableDeclarationFragments as
// IJavaElements
// and thus had to be extended
// [2] WORKAROUND for scripting interface bug (see below)
if (kind.equals(IJavaRefactorings.RENAME_METHOD)) {
IMethod m = (IMethod) element;
if (m.isConstructor()) {
// Rename the type instead (as the UI would do-- the scripting interface will only rename
// the constructor, which is broken)
kind = IJavaRefactorings.RENAME_TYPE;
element = m.getDeclaringType();
}
}
System.err.println("[eclipse-rename] Kind = " + kind + ", element = " + element);
// [3] Don't test for package fragments now
if (kind.equals(IJavaRefactorings.RENAME_PACKAGE)) return null; // don't bother with this now
if (element == null) {
System.err.println("!!! ABORT: No IJavaElement to represent location");
throw new RuntimeException("!!! ABORT: No IJavaElement for location");
}
if (element instanceof ILocalVariable) {
System.err.println("element is of type " + element.getClass());
final ILocalVariable fLocalVariable = (ILocalVariable) element;
final ISourceRange sourceRange = fLocalVariable.getNameRange();
final CompilationUnit fCompilationUnitNode = location.getCompilationUnit();
ASTNode name = NodeFinder.perform(fCompilationUnitNode, sourceRange);
System.err.println("node is of type " + name.getClass());
if (name == null) System.err.println("!!! ILV doesn't have associated name!");
if (name.getParent() instanceof VariableDeclaration)
System.err.println("ILV has parent : " + (VariableDeclaration) name.getParent());
else
System.err.println(
"!!! ILV doesn't have var declaration parent, instead " + name.getParent().getClass());
}
System.err.println("Trying to rename a " + kind + ": " + element);
if (element instanceof SimpleName)
System.err.println(" Name = '" + ((SimpleName) element).getIdentifier() + "'");
if (kind.equals(IJavaRefactorings.RENAME_TYPE)) {
System.err.println("(Possibly need a new launch configuration)");
tproject.renameClass((IType) element, new_name);
}
final RenameJavaElementDescriptor descriptor =
(RenameJavaElementDescriptor) getDescriptor(kind);
descriptor.setJavaElement(element);
descriptor.setNewName(this.new_name);
if (element.getElementType() == IJavaElement.TYPE
|| element.getElementType() == IJavaElement.PACKAGE_FRAGMENT)
descriptor.setUpdateQualifiedNames(true);
else descriptor.setUpdateQualifiedNames(false);
descriptor.setUpdateReferences(true);
descriptor.setDeprecateDelegate(false);
descriptor.setRenameGetters(false);
descriptor.setRenameSetters(false);
descriptor.setKeepOriginal(false);
descriptor.setUpdateHierarchy(false);
descriptor.setUpdateSimilarDeclarations(false);
// [3] Fix: Eclipse will complain if the transformation is a no-op, but we don't want that:
if (element.getElementName().equals(this.new_name)) throw new NOPException();
System.err.println("[eclipse-rename] Computed descriptor.");
return descriptor;
}