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    
021    package org.sonar.squid.math;
022    
023    import java.util.Collection;
024    import java.util.Map;
025    import java.util.TreeMap;
026    
027    import org.sonar.squid.api.SourceCode;
028    import org.sonar.squid.measures.MetricDef;
029    
030    public class MeasuresDistribution {
031    
032      private final Collection<SourceCode> units;
033    
034      public MeasuresDistribution(Collection<SourceCode> units) {
035        this.units = units;
036      }
037    
038      public Map<Integer, Integer> distributeAccordingTo(MetricDef metric, int... thresholds) {
039        Map<Integer, Integer> result = new TreeMap<Integer, Integer>();
040        for (int threshold : thresholds) {
041          result.put(threshold, 0);
042        }
043        for (SourceCode unit : units) {
044          for (int index = thresholds.length - 1; index >= 0; index--) {
045            if (unit.getDouble(metric) >= thresholds[index]) {
046              result.put(thresholds[index], result.get(thresholds[index]) + 1);
047              break;
048            }
049          }
050        }
051        return result;
052      }
053    }