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.SourceClass;
026import org.sonar.squid.measures.Metric;
027
028import com.puppycrawl.tools.checkstyle.api.DetailAST;
029import com.puppycrawl.tools.checkstyle.api.TokenTypes;
030
031public class AnonymousInnerClassVisitor extends JavaAstVisitor {
032
033  private static final List<Integer> TOKENS = Arrays.asList(TokenTypes.OBJBLOCK);
034
035  @Override
036  public List<Integer> getWantedTokens() {
037    return TOKENS;
038  }
039
040  @Override
041  public void visitToken(DetailAST ast) {
042    if (!AstUtils.isClass((ast.getParent()))) {
043      int anonymousInnerClassNo = determineAnonymousInnerClassNo(peekParentClass());
044      String anonymousInnerClassName = peekParentClass().getName() + "$" + anonymousInnerClassNo;
045      String anonymousInnerClassKey = peekParentClass().getKey() + "$" + anonymousInnerClassNo;
046      SourceClass anonymousInnerClass = new SourceClass(anonymousInnerClassKey, anonymousInnerClassName);
047      anonymousInnerClass.setStartAtLine(ast.getLineNo());
048      anonymousInnerClass.setMeasure(Metric.ANONYMOUS_INNER_CLASSES, 1);
049      addSourceCode(anonymousInnerClass);
050    }
051
052  }
053
054  private int determineAnonymousInnerClassNo(SourceClass parentClass) {
055    int anonymousInnerClassNo = 1;
056    while (true) {
057      SourceClass anonymousInnerClass = new SourceClass(parentClass.getKey() + "$" + anonymousInnerClassNo);
058      if (!parentClass.hasChild(anonymousInnerClass)) {
059        return anonymousInnerClassNo;
060      }
061      anonymousInnerClassNo++;
062    }
063  }
064
065  @Override
066  public void leaveToken(DetailAST ast) {
067    if (!AstUtils.isClass(ast.getParent())) {
068      popSourceCode();
069    }
070  }
071}