001    /*
002     * SonarQube, open source software quality management tool.
003     * Copyright (C) 2008-2014 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * SonarQube 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     * SonarQube 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 License
017     * along with this program; if not, write to the Free Software Foundation,
018     * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
019     */
020    
021    package org.sonar.batch.language;
022    
023    import org.sonar.api.batch.Decorator;
024    import org.sonar.api.batch.DecoratorContext;
025    import org.sonar.api.batch.DependedUpon;
026    import org.sonar.api.batch.DependsUpon;
027    import org.sonar.api.measures.CoreMetrics;
028    import org.sonar.api.measures.CountDistributionBuilder;
029    import org.sonar.api.measures.Measure;
030    import org.sonar.api.measures.Metric;
031    import org.sonar.api.resources.Language;
032    import org.sonar.api.resources.Project;
033    import org.sonar.api.resources.Resource;
034    import org.sonar.api.resources.ResourceUtils;
035    
036    public class LanguageDistributionDecorator implements Decorator {
037    
038      public boolean shouldExecuteOnProject(Project project) {
039        return true;
040      }
041    
042      @DependsUpon
043      public Metric dependsUponMetric() {
044        return CoreMetrics.LINES;
045      }
046    
047      @DependedUpon
048      public Metric generatesMetric() {
049        return CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION;
050      }
051    
052      public void decorate(Resource resource, DecoratorContext context) {
053        CountDistributionBuilder nclocDistribution = new CountDistributionBuilder(CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION);
054        if (ResourceUtils.isFile(resource)) {
055          Language language = resource.getLanguage();
056          Measure ncloc = context.getMeasure(CoreMetrics.NCLOC);
057          if (language != null && ncloc != null) {
058            nclocDistribution.add(language.getKey(), ncloc.getIntValue());
059          }
060        } else {
061          for (Measure measure : context.getChildrenMeasures(CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION)) {
062            nclocDistribution.add(measure);
063          }
064        }
065        Measure measure = nclocDistribution.build(false);
066        if (measure != null) {
067          context.saveMeasure(measure);
068        }
069      }
070    
071    }