| /** |
| * Copyright (c) 2017 Angelo ZERR. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Angelo Zerr <angelo.zerr@gmail.com> - [CodeMining] Add CodeMining support in SourceViewer - Bug 527515 |
| */ |
| package org.eclipse.jface.text.examples.codemining; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.codemining.AbstractCodeMiningProvider; |
| import org.eclipse.jface.text.codemining.ICodeMining; |
| |
| /** |
| * Class reference mining provider. |
| * |
| */ |
| public class ClassReferenceCodeMiningProvider extends AbstractCodeMiningProvider { |
| |
| @Override |
| public CompletableFuture<List<? extends ICodeMining>> provideCodeMinings(ITextViewer viewer, |
| IProgressMonitor monitor) { |
| return CompletableFuture.supplyAsync(() -> { |
| IDocument document = viewer.getDocument(); |
| List<ICodeMining> lenses = new ArrayList<>(); |
| int lineCount = document.getNumberOfLines(); |
| for (int i = 0; i < lineCount; i++) { |
| // check if request was canceled. |
| monitor.isCanceled(); |
| String line = AbstractClassCodeMining.getLineText(document, i).trim(); |
| int index = line.indexOf("class "); |
| if (index == 0) { |
| String className = line.substring(index + "class ".length(), line.length()).trim(); |
| if (!className.isEmpty()) { |
| try { |
| lenses.add(new ClassReferenceCodeMining(className, i, document, this)); |
| } catch (BadLocationException e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| } |
| return lenses; |
| }); |
| } |
| |
| } |