@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;
}
@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;
}