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     */
020    package org.sonar.java.ast.visitor;
021    
022    import java.util.Arrays;
023    import java.util.List;
024    
025    import org.sonar.squid.api.SourceClass;
026    import org.sonar.squid.measures.Metric;
027    
028    import com.puppycrawl.tools.checkstyle.api.DetailAST;
029    import com.puppycrawl.tools.checkstyle.api.TokenTypes;
030    
031    public 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    }