Example #1
0
  @Override
  public ProximityDescriptor computeProximity(Task wi1, Task wi2) {
    List<CodeContext> c1 = getContextEvents(wi1);
    List<CodeContext> c2 = getContextEvents(wi2);
    int totaItems = 0;
    int overlappingItems = 0;
    Hashtable<String, OverlapItem> allElements = new Hashtable<String, OverlapItem>();
    OverlapItem oi;
    String elementID;

    ProximityDescriptor pd = new ProximityDescriptor();
    ArrayList<Task> relatedTasks = new ArrayList<Task>();

    // go through the 2 working sets one by one: first one ...
    relatedTasks.add(wi1);
    for (CodeContext eventC1 : c1) {
      if (granularity == ProximityGranularity.FILE_LEVEL) elementID = eventC1.getFileName();
      else elementID = eventC1.getHandle();

      if (allElements.containsKey(elementID) == false) {
        oi = new OverlapItem(elementID);
        allElements.put(elementID, oi);
      } else oi = allElements.get(elementID);

      if (eventC1.wasEdited()) oi.setEdit1(oi.getEdit1() + 1);
      else oi.setSelection1(oi.getSelection1() + 1);
    }
    // ... and now second one
    relatedTasks.add(wi2);
    for (CodeContext eventC2 : c2) {
      if (granularity == ProximityGranularity.FILE_LEVEL) elementID = eventC2.getFileName();
      else elementID = eventC2.getHandle();

      if (allElements.containsKey(elementID) == false) {
        oi = new OverlapItem(elementID);
        allElements.put(elementID, oi);
      } else oi = allElements.get(elementID);

      if (eventC2.wasEdited()) oi.setEdit1(oi.getEdit1() + 1);
      else oi.setSelection1(oi.getSelection1() + 1);
    }

    totaItems = allElements.keySet().size();
    List<OverlapItem> actualOverlaps = new ArrayList<OverlapItem>();
    for (OverlapItem overlap : allElements.values()) {
      if (overlap.isActualOverlap()) actualOverlaps.add(overlap);
    }
    overlappingItems = actualOverlaps.size();
    pd.setOverlappingItems(actualOverlaps);
    pd.setPreliminaryDistance(computeRawProximity(actualOverlaps));
    pd.setInvolvedTasks(relatedTasks);

    return pd;
  }
Example #2
0
  @Override
  public List<ProximityDescriptor> computeProximity(Task wi) {
    // TODO must retrieve FULL set of open Tasks somehow
    // (directly from the DB)
    List<Task> relatedTasks = new ArrayList<Task>();
    List<ProximityDescriptor> BinaryProximities = new ArrayList<ProximityDescriptor>();
    int totalEvents = 0;

    for (Task t : relatedTasks) {
      if (!(t.getUUID()
          .equals(wi.getUUID()))) { // TODO: is this the criterion for equals() between Tasks ??
        ProximityDescriptor pairProximity = computeProximity(wi, t);
        totalEvents += countOverlappingEvents(pairProximity.getOverlappingItems());
        BinaryProximities.add(pairProximity);
      }
    }

    double averageEvents = totalEvents / relatedTasks.size();

    for (ProximityDescriptor pd : BinaryProximities) {
      double scalingFactor = pd.getOverlappingItems().size() / averageEvents;
      pd.setScalingFactor(scalingFactor);
      pd.setScaledDistance(roundProximityScore(pd.getPreliminaryDistance() * scalingFactor));
    }

    return BinaryProximities;
  }