/*
* SonarQube Java
* Copyright (C) 2012-2016 SonarSource SA
* mailto:contact AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.java.viewer;
import com.google.common.collect.Lists;
import com.sonar.sslr.api.typed.ActionParser;
import javafx.scene.web.WebEngine;
import org.sonar.java.ast.parser.JavaParser;
import org.sonar.java.cfg.CFG;
import org.sonar.java.cfg.CFGDebug;
import org.sonar.java.resolve.SemanticModel;
import org.sonar.plugins.java.api.tree.ClassTree;
import org.sonar.plugins.java.api.tree.CompilationUnitTree;
import org.sonar.plugins.java.api.tree.MethodTree;
import org.sonar.plugins.java.api.tree.Tree;
import java.nio.charset.StandardCharsets;
public class CFGViewer {
private static final ActionParser<Tree> PARSER = JavaParser.createParser(StandardCharsets.UTF_8);
private final Viewer viewer;
CFGViewer(Viewer viewer) {
this.viewer = viewer;
}
public void analyse(String source){
CFG cfg = buildCFG(source);
viewer.textArea.setText(CFGDebug.toString(cfg));
String dot = CFGDebug.toDot(cfg);
WebEngine webEngine = viewer.webView.getEngine();
webEngine.executeScript("loadCFG('" + dot + "')");
}
static CFG buildCFG(String source) {
CompilationUnitTree cut = (CompilationUnitTree) PARSER.parse(source);
SemanticModel.createFor(cut, Lists.newArrayList());
MethodTree firstMethod = ((MethodTree) ((ClassTree) cut.types().get(0)).members().get(0));
return CFG.build(firstMethod);
}
}