001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2011 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 */ 020 021 package org.sonar.java.squid.check; 022 023 import org.sonar.check.Priority; 024 import org.sonar.check.Rule; 025 import org.sonar.check.RuleProperty; 026 import org.sonar.squid.api.CheckMessage; 027 import org.sonar.squid.api.SourceFile; 028 import org.sonar.squid.api.SourceMethod; 029 import org.sonar.squid.measures.Metric; 030 031 @Rule(key = "MethodCyclomaticComplexity", priority = Priority.MAJOR) 032 public class MethodComplexityCheck extends SquidCheck { 033 034 public static final int DEFAULT_MAX = 10; 035 036 @RuleProperty(defaultValue = "" + DEFAULT_MAX) 037 private Integer max = DEFAULT_MAX; 038 039 @Override 040 public void visitMethod(SourceMethod sourceMethod) { 041 int complexity = sourceMethod.getInt(Metric.COMPLEXITY); 042 if (complexity > max) { 043 CheckMessage message = new CheckMessage(this, "The Cyclomatic Complexity of this method is " + complexity + " which is greater than " 044 + max + " authorized."); 045 message.setLine(sourceMethod.getStartAtLine()); 046 message.setCost(complexity - max); 047 sourceMethod.getParent(SourceFile.class).log(message); 048 } 049 } 050 051 public void setMax(int max) { 052 this.max = max; 053 } 054 055 }