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 */
020package org.sonar.plugins.core.sensors;
021
022import org.sonar.api.batch.Decorator;
023import org.sonar.api.batch.DecoratorContext;
024import org.sonar.api.batch.DependedUpon;
025import org.sonar.api.measures.CoreMetrics;
026import org.sonar.api.measures.Measure;
027import org.sonar.api.measures.MeasureUtils;
028import org.sonar.api.measures.Metric;
029import org.sonar.api.resources.Project;
030import org.sonar.api.resources.Resource;
031import org.sonar.api.resources.ResourceUtils;
032
033import java.util.Collection;
034
035/**
036 * @since 2.2
037 */
038public 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}