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.api.measures; 021 022 import java.util.List; 023 import java.util.Collections; 024 import java.util.Collection; 025 026 /** 027 * @since 2.0 028 * 029 * Used to consolidate a distribution measure throughout the resource tree 030 */ 031 public class SumChildDistributionFormula implements Formula { 032 033 public List<Metric> dependsUponMetrics() { 034 return Collections.emptyList(); 035 } 036 037 public Measure calculate(FormulaData data, FormulaContext context) { 038 Collection<Measure> measures = data.getChildrenMeasures(context.getTargetMetric()); 039 if (measures == null || measures.isEmpty()) { 040 return null; 041 } 042 else { 043 RangeDistributionBuilder distribution = new RangeDistributionBuilder(context.getTargetMetric()); 044 for (Measure measure : measures) { 045 distribution.add(measure); 046 } 047 return distribution.build(); 048 } 049 } 050 }