ResourcesBag.java

/*
 * Sonar PHP Plugin
 * Copyright (C) 2010 Sonar PHP Plugin
 * dev@sonar.codehaus.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */

package org.sonar.plugins.php.phpdepend;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import org.sonar.api.measures.Metric;
import org.sonar.plugins.php.api.PhpFile;

/**
 * The Class ResourcesBag.
 */
public class ResourcesBag {

  /**
   * The Class MeasuresByMetric.
   */
  static class MeasuresByMetric {

    /** The measures by metric. */
    private Map<Metric, Double> measuresByMetric;

    /**
     * Instantiates a new measures by metric.
     */
    public MeasuresByMetric() {
      this.measuresByMetric = new HashMap<Metric, Double>();
    }

    /**
     * Adds the.
     * 
     * @param value
     *          the value
     * @param metric
     *          the metric
     */
    public void add(Double value, Metric metric) {
      Double val = measuresByMetric.get(metric);
      if (val == null) {
        val = 0.0;
      }
      val += value;
      measuresByMetric.put(metric, val);
    }

    /**
     * Gets the measure.
     * 
     * @param metric
     *          the metric
     * @return the measure
     */
    public Double getMeasure(Metric metric) {
      return measuresByMetric.get(metric);
    }

    /**
     * Gets the metrics.
     * 
     * @return the metrics
     */
    public Set<Metric> getMetrics() {
      return measuresByMetric.keySet();
    }
  }

  /** The resource measures. */
  private Map<PhpFile, MeasuresByMetric> resourceMeasures;

  /**
   * Instantiates a new resources bag.
   */
  public ResourcesBag() {
    this.resourceMeasures = new HashMap<PhpFile, MeasuresByMetric>();
  }

  /**
   * Associate the given velue, to the given file and metrics.
   * 
   * @param value
   *          the value
   * @param metric
   *          the metric
   * @param resource
   *          the resource
   */
  public void add(Double value, Metric metric, PhpFile resource) {
    MeasuresByMetric measuresByMetric = resourceMeasures.get(resource);
    if (measuresByMetric == null) {
      measuresByMetric = new MeasuresByMetric();
    }
    measuresByMetric.add(value, metric);
    resourceMeasures.put(resource, measuresByMetric);
  }

  /**
   * Gets the measure.
   * 
   * @param metric
   *          the metric
   * @param resource
   *          the resource
   * @return the measure
   */
  public Double getMeasure(Metric metric, PhpFile resource) {
    MeasuresByMetric measuresByMetric = resourceMeasures.get(resource);
    return measuresByMetric.getMeasure(metric);
  }

  /**
   * Gets the metrics.
   * 
   * @param resource
   *          the resource
   * @return the metrics
   */
  public Set<Metric> getMetrics(PhpFile resource) {
    MeasuresByMetric measuresByMetric = resourceMeasures.get(resource);
    return measuresByMetric.getMetrics();
  }

  /**
   * Gets the resources.
   * 
   * @return the resources
   */
  public Set<PhpFile> getResources() {
    return resourceMeasures.keySet();
  }
}