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.api.SourcePackage;
027import org.sonar.squid.measures.Metric;
028
029import com.puppycrawl.tools.checkstyle.api.DetailAST;
030import com.puppycrawl.tools.checkstyle.api.TokenTypes;
031
032public class ClassVisitor extends JavaAstVisitor {
033
034  public static final List<Integer> WANTED_TOKENS = Arrays.asList(TokenTypes.CLASS_DEF, TokenTypes.INTERFACE_DEF, TokenTypes.ENUM_DEF,
035      TokenTypes.ANNOTATION_DEF);
036
037  @Override
038  public List<Integer> getWantedTokens() {
039    return WANTED_TOKENS;
040  }
041
042  @Override
043  public void visitToken(DetailAST ast) {
044    String className = ast.findFirstToken(TokenTypes.IDENT).getText();
045    SourceClass unit;
046    if (peekSourceCode().isType(SourceClass.class)) {
047      unit = createSourceClass((SourceClass) peekSourceCode(), className);
048    } else {
049      unit = createSourceClass(peekParentPackage(), className);
050    }
051    addSourceCode(unit);
052    unit.setStartAtLine(ast.getLineNo());
053    unit.setMeasure(Metric.CLASSES, 1);
054    if (isInterface(ast.getType())) {
055      unit.setMeasure(Metric.INTERFACES, 1);
056    }
057    if (isAbstract(ast)) {
058      unit.setMeasure(Metric.ABSTRACT_CLASSES, 1);
059    }
060    unit.setSuppressWarnings(SuppressWarningsAnnotationUtils.isSuppressAllWarnings(ast));
061  }
062
063  @Override
064  public void leaveToken(DetailAST ast) {
065    popSourceCode();
066  }
067
068  private boolean isAbstract(DetailAST ast) {
069    final DetailAST abstractAST = ast.findFirstToken(TokenTypes.MODIFIERS).findFirstToken(TokenTypes.ABSTRACT);
070    return abstractAST != null;
071  }
072
073  private boolean isInterface(int type) {
074    return type == TokenTypes.INTERFACE_DEF;
075  }
076
077  static SourceClass createSourceClass(SourcePackage parentPackage, String className) {
078    StringBuilder key = new StringBuilder();
079    if (parentPackage != null && !"".equals(parentPackage.getKey())) {
080      key.append(parentPackage.getKey());
081      key.append("/");
082    }
083    key.append(className);
084    return new SourceClass(key.toString(), className);
085  }
086
087  static SourceClass createSourceClass(SourceClass parentClass, String innerClassName) {
088    return new SourceClass(parentClass.getKey() + "$" + innerClassName, innerClassName);
089  }
090
091}