| /******************************************************************************* |
| * Copyright (c) 2000, 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.jdt.internal.corext.refactoring.code; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.NullProgressMonitor; |
| |
| import org.eclipse.core.filebuffers.FileBuffers; |
| import org.eclipse.core.filebuffers.ITextFileBuffer; |
| import org.eclipse.core.filebuffers.LocationKind; |
| |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IRegion; |
| |
| import org.eclipse.ltk.core.refactoring.RefactoringStatus; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.Block; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jdt.core.dom.MethodDeclaration; |
| |
| import org.eclipse.jdt.internal.corext.dom.ASTNodes; |
| import org.eclipse.jdt.internal.corext.dom.Selection; |
| import org.eclipse.jdt.internal.corext.dom.SelectionAnalyzer; |
| import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages; |
| import org.eclipse.jdt.internal.corext.util.Messages; |
| import org.eclipse.jdt.internal.corext.util.Strings; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels; |
| |
| public class CodeRefactoringUtil { |
| |
| public static RefactoringStatus checkMethodSyntaxErrors(int selectionStart, int selectionLength, CompilationUnit cuNode, String invalidSelectionMessage){ |
| SelectionAnalyzer analyzer= new SelectionAnalyzer(Selection.createFromStartLength(selectionStart, selectionLength), true); |
| cuNode.accept(analyzer); |
| ASTNode coveringNode= analyzer.getLastCoveringNode(); |
| if (! (coveringNode instanceof Block) || ! (coveringNode.getParent() instanceof MethodDeclaration)) |
| return RefactoringStatus.createFatalErrorStatus(invalidSelectionMessage); |
| if (ASTNodes.getMessages(coveringNode, ASTNodes.NODE_ONLY).length == 0) |
| return RefactoringStatus.createFatalErrorStatus(invalidSelectionMessage); |
| |
| MethodDeclaration methodDecl= (MethodDeclaration)coveringNode.getParent(); |
| String message= Messages.format(RefactoringCoreMessages.CodeRefactoringUtil_error_message, BasicElementLabels.getJavaElementName(methodDecl.getName().getIdentifier())); |
| return RefactoringStatus.createFatalErrorStatus(message); |
| } |
| |
| public static int getIndentationLevel(ASTNode node, ICompilationUnit unit) throws CoreException { |
| IPath fullPath= unit.getCorrespondingResource().getFullPath(); |
| try{ |
| FileBuffers.getTextFileBufferManager().connect(fullPath, LocationKind.IFILE, new NullProgressMonitor()); |
| ITextFileBuffer buffer= FileBuffers.getTextFileBufferManager().getTextFileBuffer(fullPath, LocationKind.IFILE); |
| try { |
| IRegion region= buffer.getDocument().getLineInformationOfOffset(node.getStartPosition()); |
| return Strings.computeIndentUnits(buffer.getDocument().get(region.getOffset(), region.getLength()), unit.getJavaProject()); |
| } catch (BadLocationException exception) { |
| JavaPlugin.log(exception); |
| } |
| return 0; |
| } finally { |
| FileBuffers.getTextFileBufferManager().disconnect(fullPath, LocationKind.IFILE, new NullProgressMonitor()); |
| } |
| } |
| |
| private CodeRefactoringUtil() {} |
| } |