001/*
002 * Sonar, open source software quality management tool.
003 * Copyright (C) 2008-2012 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * Sonar is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * Sonar is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with Sonar; if not, write to the Free Software
018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019 */
020package org.sonar.java.ast.visitor;
021
022import java.util.Arrays;
023import java.util.List;
024
025import org.sonar.squid.api.SourceCode;
026import org.sonar.squid.measures.Metric;
027
028import com.puppycrawl.tools.checkstyle.api.DetailAST;
029import com.puppycrawl.tools.checkstyle.api.TokenTypes;
030
031public class ComplexityVisitor extends JavaAstVisitor {
032
033  @Override
034  public List<Integer> getWantedTokens() {
035    return WANTED_TOKENS;
036  }
037
038  @Override
039  public void leaveToken(DetailAST ast) {
040    SourceCode res = peekSourceCode();
041    res.setMeasure(Metric.COMPLEXITY, res.getInt(Metric.COMPLEXITY) + res.getInt(Metric.BRANCHES) + 1);
042  }
043
044  private static final List<Integer> WANTED_TOKENS = Arrays.asList(TokenTypes.CTOR_DEF, TokenTypes.METHOD_DEF, TokenTypes.INSTANCE_INIT,
045      TokenTypes.STATIC_INIT);
046}