| /******************************************************************************* |
| * Copyright (c) 2000, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ltk.internal.core.refactoring; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| |
| import org.eclipse.core.filebuffers.FileBuffers; |
| import org.eclipse.core.filebuffers.ITextFileBuffer; |
| import org.eclipse.core.filebuffers.ITextFileBufferManager; |
| |
| import org.eclipse.jface.text.IDocument; |
| |
| import org.eclipse.ltk.core.refactoring.RefactoringStatus; |
| |
| /** |
| * Helper class for text file changes. |
| */ |
| public class TextChanges { |
| |
| private TextChanges() { |
| // no instance |
| } |
| |
| public static IDocument getDocument(IFile file) throws CoreException { |
| ITextFileBufferManager manager= FileBuffers.getTextFileBufferManager(); |
| IPath path= file.getFullPath(); |
| ITextFileBuffer buffer= manager.getTextFileBuffer(path); |
| if (buffer == null) |
| return null; |
| return buffer.getDocument(); |
| |
| } |
| |
| public static RefactoringStatus isValid(IFile file, boolean existed, long lastModificationStamp, boolean fSave) throws CoreException { |
| // the file did not exist anymore when initializing the |
| // validation state. In this case we must ensure that it |
| // still doesn't exist. |
| if (!existed) { |
| if (file.exists()) |
| return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.getFormattedString( |
| "TextChanges.error.existing", //$NON-NLS-1$ |
| file.getFullPath().toString() |
| )); |
| } else { |
| if (!file.exists()) |
| return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.getFormattedString( |
| "TextChanges.error.not_existing", //$NON-NLS-1$ |
| file.getFullPath().toString() |
| )); |
| if (lastModificationStamp != file.getModificationStamp()) |
| return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.getFormattedString( |
| "TextChanges.error.content_changed", //$NON-NLS-1$ |
| file.getFullPath().toString() |
| )); |
| if (file.isReadOnly()) |
| return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.getFormattedString( |
| "TextChanges.error.read_only", //$NON-NLS-1$ |
| file.getFullPath().toString() |
| )); |
| if (!file.isSynchronized(IResource.DEPTH_ZERO)) |
| return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.getFormattedString( |
| "TextChanges.error.outOfSync", //$NON-NLS-1$ |
| file.getFullPath().toString() |
| )); |
| |
| if (fSave) { |
| ITextFileBufferManager manager= FileBuffers.getTextFileBufferManager(); |
| // Don't connect. We want to check if the file is under modification right now |
| ITextFileBuffer buffer= manager.getTextFileBuffer(file.getFullPath()); |
| if (buffer != null && buffer.isDirty()) { |
| return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.getFormattedString( |
| "TextChanges.error.unsaved_changes", //$NON-NLS-1$ |
| file.getFullPath().toString() |
| )); |
| } |
| } |
| } |
| return new RefactoringStatus(); |
| } |
| |
| public static RefactoringStatus isValid(IDocument document, int length) throws CoreException { |
| RefactoringStatus result= new RefactoringStatus(); |
| if (length != document.getLength()) { |
| result.addFatalError(RefactoringCoreMessages.getString("TextChanges.error.document_content_changed")); //$NON-NLS-1$ |
| } |
| return result; |
| } |
| |
| } |