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    package org.sonar.plugins.core.sensors;
021    
022    import org.sonar.api.batch.Decorator;
023    import org.sonar.api.batch.DecoratorContext;
024    import org.sonar.api.batch.DependedUpon;
025    import org.sonar.api.measures.CoreMetrics;
026    import org.sonar.api.measures.Measure;
027    import org.sonar.api.measures.MeasureUtils;
028    import org.sonar.api.measures.Metric;
029    import org.sonar.api.resources.Project;
030    import org.sonar.api.resources.Resource;
031    import org.sonar.api.resources.ResourceUtils;
032    
033    import java.util.Collection;
034    
035    /**
036     * @since 2.2
037     */
038    public final class DirectoriesDecorator implements Decorator {
039    
040      public boolean shouldExecuteOnProject(Project project) {
041        return true;
042      }
043    
044      @DependedUpon
045      public Metric generateDirectoriesMetric() {
046        return CoreMetrics.DIRECTORIES;
047      }
048    
049      /**
050       * {@inheritDoc}
051       */
052      public void decorate(Resource resource, DecoratorContext context) {
053        if (MeasureUtils.hasValue(context.getMeasure(CoreMetrics.DIRECTORIES))) {
054          return;
055        }
056    
057        if (Resource.QUALIFIER_DIRECTORY.equals(resource.getQualifier())) {
058          context.saveMeasure(CoreMetrics.DIRECTORIES, 1.0);
059    
060        } else if (ResourceUtils.isSet(resource) || ResourceUtils.isView(resource) || ResourceUtils.isSubview(resource)) {
061          Collection<Measure> childrenMeasures = context.getChildrenMeasures(CoreMetrics.DIRECTORIES);
062          Double sum = MeasureUtils.sum(false, childrenMeasures);
063          if (sum != null) {
064            context.saveMeasure(CoreMetrics.DIRECTORIES, sum);
065          }
066        }
067      }
068    }