/** | |
* 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 implementation mining provider. | |
* | |
*/ | |
public class ClassImplementationsCodeMiningProvider 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(); | |
updateContentMining(i, document, "class ", lenses); | |
updateContentMining(i, document, "interface ", lenses); | |
} | |
return lenses; | |
}); | |
} | |
private void updateContentMining(int lineIndex, IDocument document, String token, List<ICodeMining> lenses) { | |
String line = AbstractClassCodeMining.getLineText(document, lineIndex).trim(); | |
int index = line.indexOf(token); | |
if (index == 0) { | |
String className = line.substring(index + token.length(), line.length()); | |
index = className.indexOf(" "); | |
if (index != -1) { | |
className = className.substring(0, index); | |
} | |
if (className.length() > 0) { | |
try { | |
lenses.add(new ClassImplementationCodeMining(className, lineIndex, document, this)); | |
} catch (BadLocationException e) { | |
e.printStackTrace(); | |
} | |
} | |
} | |
} | |
} |