| /******************************************************************************* |
| * 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.jdt.internal.corext.refactoring.reorg; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.OperationCanceledException; |
| |
| import org.eclipse.core.filebuffers.FileBuffers; |
| import org.eclipse.core.filebuffers.ITextFileBuffer; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IFolder; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IResourceVisitor; |
| import org.eclipse.core.resources.mapping.IResourceChangeDescriptionFactory; |
| |
| 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.DeleteProcessor; |
| import org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant; |
| import org.eclipse.ltk.core.refactoring.participants.ResourceChangeChecker; |
| import org.eclipse.ltk.core.refactoring.participants.SharableParticipants; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IField; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.IMethod; |
| import org.eclipse.jdt.core.IPackageFragment; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.JavaCore; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.internal.corext.codemanipulation.GetterSetterUtil; |
| import org.eclipse.jdt.internal.corext.refactoring.RefactoringAvailabilityTester; |
| import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages; |
| import org.eclipse.jdt.internal.corext.refactoring.participants.JavaProcessors; |
| import org.eclipse.jdt.internal.corext.refactoring.participants.ResourceProcessors; |
| import org.eclipse.jdt.internal.corext.refactoring.tagging.ICommentProvider; |
| import org.eclipse.jdt.internal.corext.refactoring.util.JavaElementUtil; |
| import org.eclipse.jdt.internal.corext.refactoring.util.ResourceUtil; |
| import org.eclipse.jdt.internal.corext.refactoring.util.TextChangeManager; |
| import org.eclipse.jdt.internal.corext.util.Messages; |
| import org.eclipse.jdt.internal.corext.util.Resources; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| |
| public final class JavaDeleteProcessor extends DeleteProcessor implements ICommentProvider { |
| |
| private boolean fWasCanceled; |
| private boolean fSuggestGetterSetterDeletion; |
| private Object[] fElements; |
| private IResource[] fResources; |
| private IJavaElement[] fJavaElements; |
| private IReorgQueries fDeleteQueries; |
| private DeleteModifications fDeleteModifications; |
| private String fComment; |
| |
| private Change fDeleteChange; |
| private boolean fDeleteSubPackages; |
| |
| public static final String IDENTIFIER= "org.eclipse.jdt.ui.DeleteProcessor"; //$NON-NLS-1$ |
| |
| public JavaDeleteProcessor(Object[] elements) { |
| fElements= elements; |
| fResources= RefactoringAvailabilityTester.getResources(elements); |
| fJavaElements= RefactoringAvailabilityTester.getJavaElements(elements); |
| fSuggestGetterSetterDeletion= true; |
| fDeleteSubPackages= false; |
| fWasCanceled= false; |
| } |
| |
| //---- IRefactoringProcessor --------------------------------------------------- |
| |
| public String getIdentifier() { |
| return IDENTIFIER; |
| } |
| |
| public boolean isApplicable() throws CoreException { |
| if (fElements.length == 0) |
| return false; |
| if (fElements.length != fResources.length + fJavaElements.length) |
| return false; |
| for (int i= 0; i < fResources.length; i++) { |
| if (!RefactoringAvailabilityTester.isDeleteAvailable(fResources[i])) |
| return false; |
| } |
| for (int i= 0; i < fJavaElements.length; i++) { |
| if (!RefactoringAvailabilityTester.isDeleteAvailable(fJavaElements[i])) |
| return false; |
| } |
| return true; |
| } |
| |
| public boolean needsProgressMonitor() { |
| if (fResources != null && fResources.length > 0) |
| return true; |
| if (fJavaElements != null) { |
| for (int i= 0; i < fJavaElements.length; i++) { |
| int type= fJavaElements[i].getElementType(); |
| if (type <= IJavaElement.CLASS_FILE) |
| return true; |
| } |
| } |
| return false; |
| |
| } |
| |
| public String getProcessorName() { |
| return RefactoringCoreMessages.DeleteRefactoring_7; |
| } |
| |
| public Object[] getElements() { |
| return fElements; |
| } |
| |
| public RefactoringParticipant[] loadParticipants(RefactoringStatus status, SharableParticipants shared) throws CoreException { |
| return fDeleteModifications.loadParticipants(status, this, getAffectedProjectNatures(), shared); |
| } |
| |
| private String[] getAffectedProjectNatures() throws CoreException { |
| String[] jNatures= JavaProcessors.computeAffectedNaturs(fJavaElements); |
| String[] rNatures= ResourceProcessors.computeAffectedNatures(fResources); |
| Set result= new HashSet(); |
| result.addAll(Arrays.asList(jNatures)); |
| result.addAll(Arrays.asList(rNatures)); |
| return (String[])result.toArray(new String[result.size()]); |
| } |
| |
| /* |
| * This has to be customizable because when drag and drop is performed on a field, |
| * you don't want to suggest deleting getter/setter if only the field was moved. |
| */ |
| public void setSuggestGetterSetterDeletion(boolean suggest){ |
| fSuggestGetterSetterDeletion= suggest; |
| } |
| |
| public void setDeleteSubPackages(boolean selection) { |
| fDeleteSubPackages= selection; |
| } |
| |
| public boolean getDeleteSubPackages() { |
| return fDeleteSubPackages; |
| } |
| |
| public boolean hasSubPackagesToDelete() { |
| try { |
| for (int i= 0; i < fJavaElements.length; i++) { |
| if (fJavaElements[i] instanceof IPackageFragment) { |
| IPackageFragment packageFragment= (IPackageFragment) fJavaElements[i]; |
| if (packageFragment.isDefaultPackage()) |
| continue; // see bug 132576 (can remove this if(..) continue; statement when bug is fixed) |
| if (packageFragment.hasSubpackages()) |
| return true; |
| } |
| } |
| } catch (JavaModelException e) { |
| JavaPlugin.log(e); |
| } |
| return false; |
| } |
| |
| public void setQueries(IReorgQueries queries){ |
| Assert.isNotNull(queries); |
| fDeleteQueries= queries; |
| } |
| |
| public IJavaElement[] getJavaElementsToDelete(){ |
| return fJavaElements; |
| } |
| |
| public boolean wasCanceled() { |
| return fWasCanceled; |
| } |
| |
| public IResource[] getResourcesToDelete(){ |
| return fResources; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.internal.corext.refactoring.base.Refactoring#checkActivation(org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public RefactoringStatus checkInitialConditions(IProgressMonitor pm) throws CoreException { |
| Assert.isNotNull(fDeleteQueries);//must be set before checking activation |
| RefactoringStatus result= new RefactoringStatus(); |
| result.merge(RefactoringStatus.create(Resources.checkInSync(ReorgUtils.getNotLinked(fResources)))); |
| IResource[] javaResources= ReorgUtils.getResources(fJavaElements); |
| result.merge(RefactoringStatus.create(Resources.checkInSync(ReorgUtils.getNotNulls(javaResources)))); |
| for (int i= 0; i < fJavaElements.length; i++) { |
| IJavaElement element= fJavaElements[i]; |
| if (element instanceof IType && ((IType)element).isAnonymous()) { |
| // work around for bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=44450 |
| // result.addFatalError("Currently, there isn't any support to delete an anonymous type."); |
| } |
| } |
| return result; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.internal.corext.refactoring.base.Refactoring#checkInput(org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public RefactoringStatus checkFinalConditions(IProgressMonitor pm, CheckConditionsContext context) throws CoreException { |
| pm.beginTask(RefactoringCoreMessages.DeleteRefactoring_1, 1); |
| try{ |
| fWasCanceled= false; |
| RefactoringStatus result= new RefactoringStatus(); |
| |
| recalculateElementsToDelete(); |
| |
| TextChangeManager manager= new TextChangeManager(); |
| fDeleteChange= DeleteChangeCreator.createDeleteChange(manager, fResources, fJavaElements, getProcessorName()); |
| checkDirtyCompilationUnits(result); |
| checkDirtyResources(result); |
| fDeleteModifications= new DeleteModifications(); |
| fDeleteModifications.delete(fResources); |
| fDeleteModifications.delete(fJavaElements); |
| fDeleteModifications.postProcess(); |
| |
| ResourceChangeChecker checker= (ResourceChangeChecker) context.getChecker(ResourceChangeChecker.class); |
| IResourceChangeDescriptionFactory deltaFactory= checker.getDeltaFactory(); |
| fDeleteModifications.buildDelta(deltaFactory); |
| IFile[] files= getClassPathFiles(); |
| for (int i= 0; i < files.length; i++) { |
| deltaFactory.change(files[i]); |
| } |
| files= ResourceUtil.getFiles(manager.getAllCompilationUnits()); |
| for (int i= 0; i < files.length; i++) { |
| deltaFactory.change(files[i]); |
| } |
| return result; |
| } catch (OperationCanceledException e) { |
| fWasCanceled= true; |
| throw e; |
| } catch (JavaModelException e){ |
| throw e; |
| } catch (CoreException e) { |
| throw new JavaModelException(e); |
| } finally{ |
| pm.done(); |
| } |
| } |
| |
| private void checkDirtyCompilationUnits(RefactoringStatus result) throws CoreException { |
| if (fJavaElements == null || fJavaElements.length == 0) |
| return; |
| for (int je= 0; je < fJavaElements.length; je++) { |
| IJavaElement element= fJavaElements[je]; |
| if (element instanceof ICompilationUnit) { |
| checkDirtyCompilationUnit(result, (ICompilationUnit)element); |
| } else if (element instanceof IPackageFragment) { |
| ICompilationUnit[] units= ((IPackageFragment)element).getCompilationUnits(); |
| for (int u = 0; u < units.length; u++) { |
| checkDirtyCompilationUnit(result, units[u]); |
| } |
| } |
| } |
| } |
| |
| private void checkDirtyCompilationUnit(RefactoringStatus result, ICompilationUnit cunit) { |
| IResource resource= cunit.getResource(); |
| if (resource == null || resource.getType() != IResource.FILE) |
| return; |
| checkDirtyFile(result, (IFile)resource); |
| } |
| |
| private void checkDirtyResources(final RefactoringStatus result) throws CoreException { |
| for (int i= 0; i < fResources.length; i++) { |
| IResource resource= fResources[i]; |
| resource.accept(new IResourceVisitor() { |
| public boolean visit(IResource visitedResource) throws CoreException { |
| if (visitedResource instanceof IFile) { |
| checkDirtyFile(result, (IFile)visitedResource); |
| } |
| return true; |
| } |
| }, IResource.DEPTH_INFINITE, false); |
| } |
| } |
| |
| private void checkDirtyFile(RefactoringStatus result, IFile file) { |
| if (file == null || !file.exists()) |
| return; |
| ITextFileBuffer buffer= FileBuffers.getTextFileBufferManager().getTextFileBuffer(file.getFullPath()); |
| if (buffer != null && buffer.isDirty()) { |
| if (buffer.isStateValidated() && buffer.isSynchronized()) { |
| result.addWarning(Messages.format( |
| RefactoringCoreMessages.JavaDeleteProcessor_unsaved_changes, |
| file.getFullPath().toString())); |
| } else { |
| result.addFatalError(Messages.format( |
| RefactoringCoreMessages.JavaDeleteProcessor_unsaved_changes, |
| file.getFullPath().toString())); |
| } |
| } |
| } |
| |
| /* |
| * The set of elements that will eventually be deleted may be very different from the set |
| * originally selected - there may be fewer, more or different elements. |
| * This method is used to calculate the set of elements that will be deleted - if necessary, |
| * it asks the user. |
| */ |
| private void recalculateElementsToDelete() throws CoreException { |
| //the sequence is critical here |
| |
| if (fDeleteSubPackages) /* add subpackages first, to allow removing elements with parents in selection etc. */ |
| addSubPackages(); |
| |
| removeElementsWithParentsInSelection(); /*ask before adding empty cus - you don't want to ask if you, for example delete |
| *the package, in which the cus live*/ |
| removeUnconfirmedFoldersThatContainSourceFolders(); /* a selected folder may be a parent of a source folder |
| * we must inform the user about it and ask if ok to delete the folder*/ |
| removeUnconfirmedReferencedArchives(); |
| addEmptyCusToDelete(); |
| removeJavaElementsChildrenOfJavaElements();/*because adding cus may create elements (types in cus) |
| *whose parents are in selection*/ |
| confirmDeletingReadOnly(); /*after empty cus - you want to ask for all cus that are to be deleted*/ |
| |
| if (fSuggestGetterSetterDeletion) |
| addGettersSetters();/*at the end - this cannot invalidate anything*/ |
| |
| addDeletableParentPackagesOnPackageDeletion(); /* do not change the sequence in fJavaElements after this method */ |
| } |
| |
| /** |
| * Adds all subpackages of the selected packages to the list of items to be |
| * deleted. |
| * |
| * @throws JavaModelException |
| */ |
| private void addSubPackages() throws JavaModelException { |
| |
| final Set javaElements= new HashSet(); |
| for (int i= 0; i < fJavaElements.length; i++) { |
| if (fJavaElements[i] instanceof IPackageFragment) { |
| javaElements.addAll(Arrays.asList(JavaElementUtil.getPackageAndSubpackages((IPackageFragment) fJavaElements[i]))); |
| } else { |
| javaElements.add(fJavaElements[i]); |
| } |
| } |
| |
| fJavaElements= (IJavaElement[]) javaElements.toArray(new IJavaElement[javaElements.size()]); |
| } |
| |
| /** |
| * Add deletable parent packages to the list of items to delete. |
| * |
| * @throws CoreException |
| */ |
| private void addDeletableParentPackagesOnPackageDeletion() throws CoreException { |
| |
| final List/* <IPackageFragment */initialPackagesToDelete= ReorgUtils.getElementsOfType(fJavaElements, IJavaElement.PACKAGE_FRAGMENT); |
| |
| if (initialPackagesToDelete.size() == 0) |
| return; |
| |
| // Move from inner to outer packages |
| Collections.sort(initialPackagesToDelete, new Comparator() { |
| public int compare(Object arg0, Object arg1) { |
| IPackageFragment one= (IPackageFragment) arg0; |
| IPackageFragment two= (IPackageFragment) arg1; |
| return two.getElementName().compareTo(one.getElementName()); |
| } |
| }); |
| |
| // Get resources and java elements which will be deleted as well |
| final Set/* <IResource> */deletedChildren= new HashSet(); |
| deletedChildren.addAll(Arrays.asList(fResources)); |
| for (int i= 0; i < fJavaElements.length; i++) { |
| if (!ReorgUtils.isInsideCompilationUnit(fJavaElements[i])) |
| deletedChildren.add(fJavaElements[i].getResource()); |
| } |
| |
| // new package list in the right sequence |
| final List/* <IPackageFragment */allFragmentsToDelete= new ArrayList(); |
| |
| for (Iterator outerIter= initialPackagesToDelete.iterator(); outerIter.hasNext();) { |
| final IPackageFragment currentPackageFragment= (IPackageFragment) outerIter.next(); |
| |
| // The package will at least be cleared |
| allFragmentsToDelete.add(currentPackageFragment); |
| |
| if (canRemoveCompletely(currentPackageFragment, initialPackagesToDelete)) { |
| |
| final IPackageFragment parent= JavaElementUtil.getParentSubpackage(currentPackageFragment); |
| if (parent != null && !initialPackagesToDelete.contains(parent)) { |
| |
| final List/* <IPackageFragment> */emptyParents= new ArrayList(); |
| addDeletableParentPackages(parent, initialPackagesToDelete, deletedChildren, emptyParents); |
| |
| // Add parents in the right sequence (inner to outer) |
| allFragmentsToDelete.addAll(emptyParents); |
| } |
| } |
| } |
| |
| // Remove resources in deleted packages; and the packages as well |
| final List/* <IJavaElement> */javaElements= new ArrayList(); |
| for (int i= 0; i < fJavaElements.length; i++) { |
| if (!(fJavaElements[i] instanceof IPackageFragment)) { |
| // remove children of deleted packages |
| final IPackageFragment frag= (IPackageFragment) fJavaElements[i].getAncestor(IJavaElement.PACKAGE_FRAGMENT); |
| if (!allFragmentsToDelete.contains(frag)) |
| javaElements.add(fJavaElements[i]); |
| } |
| } |
| // Re-add deleted packages - note the (new) sequence |
| javaElements.addAll(allFragmentsToDelete); |
| |
| // Remove resources in deleted folders |
| final List/* <IResource> */resources= new ArrayList(); |
| for (int i= 0; i < fResources.length; i++) { |
| IResource parent= fResources[i]; |
| if (parent.getType() == IResource.FILE) |
| parent= parent.getParent(); |
| if (!deletedChildren.contains(parent)) |
| resources.add(fResources[i]); |
| } |
| |
| fJavaElements= (IJavaElement[]) javaElements.toArray(new IJavaElement[javaElements.size()]); |
| fResources= (IResource[]) resources.toArray(new IResource[resources.size()]); |
| } |
| |
| /** |
| * Returns true if this initially selected package is really deletable |
| * (if it has non-selected subpackages, it may only be cleared). |
| * |
| */ |
| private boolean canRemoveCompletely(IPackageFragment pack, List packagesToDelete) throws JavaModelException { |
| final IPackageFragment[] subPackages= JavaElementUtil.getPackageAndSubpackages(pack); |
| for (int i= 0; i < subPackages.length; i++) { |
| if (!(subPackages[i].equals(pack)) && !(packagesToDelete.contains(subPackages[i]))) |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * Adds deletable parent packages of the fragment "frag" to the list |
| * "deletableParentPackages"; also adds the resources of those packages to the |
| * set "resourcesToDelete". |
| * |
| */ |
| private void addDeletableParentPackages(IPackageFragment frag, List initialPackagesToDelete, Set resourcesToDelete, List deletableParentPackages) |
| throws CoreException { |
| |
| if (frag.getResource().isLinked()) { |
| final IConfirmQuery query= fDeleteQueries.createYesNoQuery(RefactoringCoreMessages.JavaDeleteProcessor_confirm_linked_folder_delete, false, IReorgQueries.CONFIRM_DELETE_LINKED_PARENT); |
| if (!query.confirm(Messages.format(RefactoringCoreMessages.JavaDeleteProcessor_delete_linked_folder_question, new String[] { frag.getResource().getName() }))) |
| return; |
| } |
| |
| final IResource[] children= (((IContainer) frag.getResource())).members(); |
| for (int i= 0; i < children.length; i++) { |
| // Child must be a package fragment already in the list, |
| // or a resource which is deleted as well. |
| if (!resourcesToDelete.contains(children[i])) |
| return; |
| } |
| resourcesToDelete.add(frag.getResource()); |
| deletableParentPackages.add(frag); |
| |
| final IPackageFragment parent= JavaElementUtil.getParentSubpackage(frag); |
| if (parent != null && !initialPackagesToDelete.contains(parent)) |
| addDeletableParentPackages(parent, initialPackagesToDelete, resourcesToDelete, deletableParentPackages); |
| } |
| |
| // ask for confirmation of deletion of all package fragment roots that are |
| // on classpaths of other projects |
| private void removeUnconfirmedReferencedArchives() throws JavaModelException { |
| String queryTitle= RefactoringCoreMessages.DeleteRefactoring_2; |
| IConfirmQuery query= fDeleteQueries.createYesYesToAllNoNoToAllQuery(queryTitle, true, IReorgQueries.CONFIRM_DELETE_REFERENCED_ARCHIVES); |
| removeUnconfirmedReferencedPackageFragmentRoots(query); |
| removeUnconfirmedReferencedArchiveFiles(query); |
| } |
| |
| private void removeUnconfirmedReferencedArchiveFiles(IConfirmQuery query) throws JavaModelException, OperationCanceledException { |
| List filesToSkip= new ArrayList(0); |
| for (int i= 0; i < fResources.length; i++) { |
| IResource resource= fResources[i]; |
| if (! (resource instanceof IFile)) |
| continue; |
| |
| IJavaProject project= JavaCore.create(resource.getProject()); |
| if (project == null || ! project.exists()) |
| continue; |
| IPackageFragmentRoot root= project.findPackageFragmentRoot(resource.getFullPath()); |
| if (root == null) |
| continue; |
| List referencingProjects= new ArrayList(1); |
| referencingProjects.add(root.getJavaProject()); |
| referencingProjects.addAll(Arrays.asList(JavaElementUtil.getReferencingProjects(root))); |
| if (skipDeletingReferencedRoot(query, root, referencingProjects)) |
| filesToSkip.add(resource); |
| } |
| removeFromSetToDelete((IFile[]) filesToSkip.toArray(new IFile[filesToSkip.size()])); |
| } |
| |
| private void removeUnconfirmedReferencedPackageFragmentRoots(IConfirmQuery query) throws JavaModelException, OperationCanceledException { |
| List rootsToSkip= new ArrayList(0); |
| for (int i= 0; i < fJavaElements.length; i++) { |
| IJavaElement element= fJavaElements[i]; |
| if (! (element instanceof IPackageFragmentRoot)) |
| continue; |
| IPackageFragmentRoot root= (IPackageFragmentRoot)element; |
| List referencingProjects= Arrays.asList(JavaElementUtil.getReferencingProjects(root)); |
| if (skipDeletingReferencedRoot(query, root, referencingProjects)) |
| rootsToSkip.add(root); |
| } |
| removeFromSetToDelete((IJavaElement[]) rootsToSkip.toArray(new IJavaElement[rootsToSkip.size()])); |
| } |
| |
| private static boolean skipDeletingReferencedRoot(IConfirmQuery query, IPackageFragmentRoot root, List referencingProjects) throws OperationCanceledException { |
| if (referencingProjects.isEmpty() || root == null || ! root.exists() ||! root.isArchive()) |
| return false; |
| String question= Messages.format(RefactoringCoreMessages.DeleteRefactoring_3, root.getElementName()); |
| return ! query.confirm(question, referencingProjects.toArray()); |
| } |
| |
| private void removeUnconfirmedFoldersThatContainSourceFolders() throws CoreException { |
| String queryTitle= RefactoringCoreMessages.DeleteRefactoring_4; |
| IConfirmQuery query= fDeleteQueries.createYesYesToAllNoNoToAllQuery(queryTitle, true, IReorgQueries.CONFIRM_DELETE_FOLDERS_CONTAINING_SOURCE_FOLDERS); |
| List foldersToSkip= new ArrayList(0); |
| for (int i= 0; i < fResources.length; i++) { |
| IResource resource= fResources[i]; |
| if (resource instanceof IFolder){ |
| IFolder folder= (IFolder)resource; |
| if (containsSourceFolder(folder)){ |
| String question= Messages.format(RefactoringCoreMessages.DeleteRefactoring_5, folder.getName()); |
| if (! query.confirm(question)) |
| foldersToSkip.add(folder); |
| } |
| } |
| } |
| removeFromSetToDelete((IResource[]) foldersToSkip.toArray(new IResource[foldersToSkip.size()])); |
| } |
| |
| private static boolean containsSourceFolder(IFolder folder) throws CoreException { |
| IResource[] subFolders= folder.members(); |
| for (int i = 0; i < subFolders.length; i++) { |
| if (! (subFolders[i] instanceof IFolder)) |
| continue; |
| IJavaElement element= JavaCore.create(folder); |
| if (element instanceof IPackageFragmentRoot) |
| return true; |
| if (element instanceof IPackageFragment) |
| continue; |
| if (containsSourceFolder((IFolder)subFolders[i])) |
| return true; |
| } |
| return false; |
| } |
| |
| private void removeElementsWithParentsInSelection() { |
| ParentChecker parentUtil= new ParentChecker(fResources, fJavaElements); |
| parentUtil.removeElementsWithAncestorsOnList(false); |
| fJavaElements= parentUtil.getJavaElements(); |
| fResources= parentUtil.getResources(); |
| } |
| |
| private void removeJavaElementsChildrenOfJavaElements(){ |
| ParentChecker parentUtil= new ParentChecker(fResources, fJavaElements); |
| parentUtil.removeElementsWithAncestorsOnList(true); |
| fJavaElements= parentUtil.getJavaElements(); |
| } |
| |
| private IFile[] getClassPathFiles() { |
| List result= new ArrayList(); |
| for (int i= 0; i < fJavaElements.length; i++) { |
| IJavaElement element= fJavaElements[i]; |
| if (element instanceof IPackageFragmentRoot) { |
| IProject project= element.getJavaProject().getProject(); |
| IFile classPathFile= project.getFile(".classpath"); //$NON-NLS-1$ |
| if (classPathFile.exists()) |
| result.add(classPathFile); |
| } |
| } |
| return (IFile[])result.toArray(new IFile[result.size()]); |
| } |
| |
| public Change createChange(IProgressMonitor pm) throws CoreException { |
| pm.beginTask("", 1); //$NON-NLS-1$ |
| pm.done(); |
| return fDeleteChange; |
| } |
| |
| private void addToSetToDelete(IJavaElement[] newElements){ |
| fJavaElements= ReorgUtils.union(fJavaElements, newElements); |
| } |
| |
| private void removeFromSetToDelete(IResource[] resourcesToNotDelete) { |
| fResources= ReorgUtils.setMinus(fResources, resourcesToNotDelete); |
| } |
| |
| private void removeFromSetToDelete(IJavaElement[] elementsToNotDelete) { |
| fJavaElements= ReorgUtils.setMinus(fJavaElements, elementsToNotDelete); |
| } |
| |
| //--- getter setter related methods |
| private void addGettersSetters() throws JavaModelException { |
| IField[] fields= getFields(fJavaElements); |
| if (fields.length == 0) |
| return; |
| //IField -> IMethod[] |
| Map getterSetterMapping= createGetterSetterMapping(fields); |
| if (getterSetterMapping.isEmpty()) |
| return; |
| removeAlreadySelectedMethods(getterSetterMapping); |
| if (getterSetterMapping.isEmpty()) |
| return; |
| |
| List gettersSettersToAdd= getGettersSettersToDelete(getterSetterMapping); |
| addToSetToDelete((IMethod[]) gettersSettersToAdd.toArray(new IMethod[gettersSettersToAdd.size()])); |
| } |
| |
| private List getGettersSettersToDelete(Map getterSetterMapping) { |
| List gettersSettersToAdd= new ArrayList(getterSetterMapping.size()); |
| String queryTitle= RefactoringCoreMessages.DeleteRefactoring_8; |
| IConfirmQuery getterSetterQuery= fDeleteQueries.createYesYesToAllNoNoToAllQuery(queryTitle, true, IReorgQueries.CONFIRM_DELETE_GETTER_SETTER); |
| for (Iterator iter= getterSetterMapping.keySet().iterator(); iter.hasNext();) { |
| IField field= (IField) iter.next(); |
| Assert.isTrue(hasGetter(getterSetterMapping, field) || hasSetter(getterSetterMapping, field)); |
| String deleteGetterSetter= Messages.format(RefactoringCoreMessages.DeleteRefactoring_9, JavaElementUtil.createFieldSignature(field)); |
| if (getterSetterQuery.confirm(deleteGetterSetter)){ |
| if (hasGetter(getterSetterMapping, field)) |
| gettersSettersToAdd.add(getGetter(getterSetterMapping, field)); |
| if (hasSetter(getterSetterMapping, field)) |
| gettersSettersToAdd.add(getSetter(getterSetterMapping, field)); |
| } |
| } |
| return gettersSettersToAdd; |
| } |
| |
| //note: modifies the mapping |
| private void removeAlreadySelectedMethods(Map getterSetterMapping) { |
| List elementsToDelete= Arrays.asList(fJavaElements); |
| for (Iterator iter= getterSetterMapping.keySet().iterator(); iter.hasNext();) { |
| IField field= (IField) iter.next(); |
| //remove getter |
| IMethod getter= getGetter(getterSetterMapping, field); |
| if (getter != null && elementsToDelete.contains(getter)) |
| removeGetterFromMapping(getterSetterMapping, field); |
| |
| //remove setter |
| IMethod setter= getSetter(getterSetterMapping, field); |
| if (setter != null && elementsToDelete.contains(setter)) |
| removeSetterFromMapping(getterSetterMapping, field); |
| |
| //both getter and setter already included |
| if (! hasGetter(getterSetterMapping, field) && ! hasSetter(getterSetterMapping, field)) |
| iter.remove(); |
| } |
| } |
| |
| /* |
| * IField -> IMethod[] (array of 2 - [getter, setter], one of which can be null) |
| */ |
| private static Map createGetterSetterMapping(IField[] fields) throws JavaModelException { |
| Map result= new HashMap(); |
| for (int i= 0; i < fields.length; i++) { |
| IField field= fields[i]; |
| IMethod[] getterSetter= getGetterSetter(field); |
| if (getterSetter != null) |
| result.put(field, getterSetter); |
| } |
| return result; |
| } |
| private static boolean hasSetter(Map getterSetterMapping, IField field){ |
| return getterSetterMapping.containsKey(field) && |
| getSetter(getterSetterMapping, field) != null; |
| } |
| private static boolean hasGetter(Map getterSetterMapping, IField field){ |
| return getterSetterMapping.containsKey(field) && |
| getGetter(getterSetterMapping, field) != null; |
| } |
| private static void removeGetterFromMapping(Map getterSetterMapping, IField field){ |
| ((IMethod[])getterSetterMapping.get(field))[0]= null; |
| } |
| private static void removeSetterFromMapping(Map getterSetterMapping, IField field){ |
| ((IMethod[])getterSetterMapping.get(field))[1]= null; |
| } |
| private static IMethod getGetter(Map getterSetterMapping, IField field){ |
| return ((IMethod[])getterSetterMapping.get(field))[0]; |
| } |
| private static IMethod getSetter(Map getterSetterMapping, IField field){ |
| return ((IMethod[])getterSetterMapping.get(field))[1]; |
| } |
| private static IField[] getFields(IJavaElement[] elements){ |
| List fields= new ArrayList(3); |
| for (int i= 0; i < elements.length; i++) { |
| if (elements[i] instanceof IField) |
| fields.add(elements[i]); |
| } |
| return (IField[]) fields.toArray(new IField[fields.size()]); |
| } |
| |
| /* |
| * returns an array of 2 [getter, setter] or null if no getter or setter exists |
| */ |
| private static IMethod[] getGetterSetter(IField field) throws JavaModelException { |
| IMethod getter= GetterSetterUtil.getGetter(field); |
| IMethod setter= GetterSetterUtil.getSetter(field); |
| if ((getter != null && getter.exists()) || (setter != null && setter.exists())) |
| return new IMethod[]{getter, setter}; |
| else |
| return null; |
| } |
| |
| //----------- read-only confirmation business ------ |
| private void confirmDeletingReadOnly() throws CoreException { |
| if (! ReadOnlyResourceFinder.confirmDeleteOfReadOnlyElements(fJavaElements, fResources, fDeleteQueries)) |
| throw new OperationCanceledException(); //saying 'no' to this one is like cancelling the whole operation |
| } |
| |
| //----------- empty CUs related method |
| private void addEmptyCusToDelete() throws JavaModelException { |
| Set cusToEmpty= getCusToEmpty(); |
| addToSetToDelete((ICompilationUnit[]) cusToEmpty.toArray(new ICompilationUnit[cusToEmpty.size()])); |
| } |
| |
| private Set getCusToEmpty() throws JavaModelException { |
| Set result= new HashSet(); |
| for (int i= 0; i < fJavaElements.length; i++) { |
| IJavaElement element= fJavaElements[i]; |
| ICompilationUnit cu= ReorgUtils.getCompilationUnit(element); |
| if (cu != null && ! result.contains(cu) && willHaveAllTopLevelTypesDeleted(cu)) |
| result.add(cu); |
| } |
| return result; |
| } |
| |
| private boolean willHaveAllTopLevelTypesDeleted(ICompilationUnit cu) throws JavaModelException { |
| Set elementSet= new HashSet(Arrays.asList(fJavaElements)); |
| IType[] topLevelTypes= cu.getTypes(); |
| for (int i= 0; i < topLevelTypes.length; i++) { |
| if (! elementSet.contains(topLevelTypes[i])) |
| return false; |
| } |
| return true; |
| } |
| |
| public boolean canEnableComment() { |
| return true; |
| } |
| |
| public String getComment() { |
| return fComment; |
| } |
| |
| public void setComment(String comment) { |
| fComment= comment; |
| } |
| } |
