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