/// <summary>
/// (non-Javadoc)
/// see java.util.Iterator#next()
/// </summary>
/// <returns></returns>
public override string Next()
{
if ((_index >= 0) && (_index >= _countLengthMinusOne))
{
throw new IndexOutOfRangeException("No more facets in this iteration");
}
_index++;
_facet = _valList.GetPrimitiveValue(_index);
count = _count.Get(_index);
return(_valList.Get(_index));
}
public virtual Explanation Explain(IndexReader reader, int doc, Explanation innerExplanation)
{
if (reader is BoboIndexReader)
{
BoboIndexReader boboReader = (BoboIndexReader)reader;
object dataObj = boboReader.GetFacetData(_timeFacetName);
if (dataObj is FacetDataCache)
{
FacetDataCache facetDataCache = (FacetDataCache)(boboReader.GetFacetData(_timeFacetName));
BigSegmentedArray orderArray = facetDataCache.OrderArray;
TermLongList termList = (TermLongList)facetDataCache.ValArray;
long now = System.Environment.TickCount;
Explanation finalExpl = new Explanation();
finalExpl.AddDetail(innerExplanation);
float rawScore = innerExplanation.Value;
long timeVal = termList.GetPrimitiveValue(orderArray.Get(doc));
float timeScore = ComputeTimeFactor(timeVal);
float finalScore = CombineScores(timeScore, rawScore);
finalExpl.Value = finalScore;
finalExpl.Description = "final score = (time score: " + timeScore + ") * (raw score: " + rawScore + "), timeVal: " + timeVal;
return(finalExpl);
}
else
{
throw new InvalidOperationException("underlying facet data must be of type FacetDataCache<long>");
}
}
else
{
throw new ArgumentException("reader not instance of " + typeof(BoboIndexReader));
}
}
private void Aggregate()
{
if (_isAggregated)
{
return;
}
_isAggregated = true;
int startIdx = _valArray.IndexOf(_start);
if (startIdx < 0)
{
startIdx = -(startIdx + 1);
}
int endIdx = _valArray.IndexOf(_end);
if (endIdx < 0)
{
endIdx = -(endIdx + 1);
}
BigSegmentedArray baseCounts = _baseCollector.GetCountDistribution();
if (_start is long)
{
long start = Convert.ToInt64(_start);
long unit = Convert.ToInt64(_unit);
TermLongList valArray = (TermLongList)_valArray;
for (int i = startIdx; i < endIdx; i++)
{
long val = valArray.GetPrimitiveValue(i);
int idx = (int)((val - start) / unit);
if (idx >= 0 && idx < _count.Size())
{
_count.Add(idx, _count.Get(idx) + baseCounts.Get(i));
}
}
}
else if (_start is int)
{
int start = Convert.ToInt32(_start);
int unit = Convert.ToInt32(_unit);
TermIntList valArray = (TermIntList)_valArray;
for (int i = startIdx; i < endIdx; i++)
{
int val = valArray.GetPrimitiveValue(i);
int idx = ((val - start) / unit);
if (idx >= 0 && idx < _count.Size())
{
_count.Add(idx, _count.Get(idx) + baseCounts.Get(i));
}
}
}
else
{
double start = Convert.ToDouble(_start);
double unit = Convert.ToDouble(_unit);
for (int i = startIdx; i < endIdx; i++)
{
double val = (double)_valArray.GetRawValue(i);
int idx = (int)((val - start) / unit);
if (idx >= 0 && idx < _count.Size())
{
_count.Add(idx, _count.Get(idx) + baseCounts.Get(i));
}
}
}
}