| /** |
| * 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.concurrent.CancellationException; |
| 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.ICodeMiningProvider; |
| |
| /** |
| * Class reference mining. |
| * |
| */ |
| public class ClassReferenceCodeMining extends AbstractClassCodeMining { |
| |
| private Object lock = new Object(); |
| |
| public ClassReferenceCodeMining(String className, int afterLineNumber, IDocument document, ICodeMiningProvider provider) |
| throws BadLocationException { |
| super(className, afterLineNumber, document, provider); |
| } |
| |
| @Override |
| protected CompletableFuture<Void> doResolve(ITextViewer viewer, IProgressMonitor monitor) { |
| return CompletableFuture.runAsync(() -> { |
| IDocument document = viewer.getDocument(); |
| String className = super.getClassName(); |
| try { |
| int wait = Integer.parseInt(className); |
| try { |
| for (int i = 0; i < wait; i++) { |
| monitor.isCanceled(); |
| synchronized (lock) { |
| lock.wait(1000); |
| } |
| } |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| } |
| } catch (NumberFormatException e) { |
| |
| } catch (CancellationException e) { |
| e.printStackTrace(); |
| throw e; |
| } |
| |
| int refCount = 0; |
| int lineCount = document.getNumberOfLines(); |
| for (int i = 0; i < lineCount; i++) { |
| // check if request was canceled. |
| monitor.isCanceled(); |
| String line = getLineText(document, i); |
| refCount += line.contains("new " + className) ? 1 : 0; |
| } |
| super.setLabel(refCount + " references"); |
| }); |
| } |
| |
| } |