001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2009 SonarSource SA 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.bytecode.visitor; 021 022 import org.sonar.java.bytecode.asm.AsmClass; 023 import org.sonar.squid.indexer.SquidIndex; 024 import org.sonar.squid.measures.Metric; 025 026 public class DITVisitor extends BytecodeVisitor { 027 028 public DITVisitor(SquidIndex index) { 029 super(index); 030 } 031 032 public void visitClass(AsmClass asmClass) { 033 int dit = calculateDepthOfInheritance(asmClass); 034 035 getSourceClass(asmClass).add(Metric.DIT, dit); 036 037 if (isMainPublicClassInFile(asmClass)) { 038 getSourceFile(asmClass).add(Metric.DIT, dit); 039 } 040 } 041 042 private int calculateDepthOfInheritance(AsmClass asmClass) { 043 int dit = 0; 044 AsmClass superClass = asmClass.getSuperClass(); 045 while (superClass != null) { 046 dit++; 047 superClass = superClass.getSuperClass(); 048 } 049 return dit; 050 } 051 }