public override TopFieldDocs Search(Weight weight, Filter filter, int n, Sort sort)
{
FieldDocSortedHitQueue hq = null;
int totalHits = 0;
float maxScore = System.Single.NegativeInfinity;
for (int i = 0; i < searchables.Length; i++)
{
// search each searcher
TopFieldDocs docs = searchables[i].Search(weight, filter, n, sort);
// If one of the Sort fields is FIELD_DOC, need to fix its values, so that
// it will break ties by doc Id properly. Otherwise, it will compare to
// 'relative' doc Ids, that belong to two different searchers.
for (int j = 0; j < docs.fields.Length; j++)
{
if (docs.fields[j].GetType() == SortField.DOC)
{
// iterate over the score docs and change their fields value
for (int j2 = 0; j2 < docs.ScoreDocs.Length; j2++)
{
FieldDoc fd = (FieldDoc)docs.ScoreDocs[j2];
fd.fields[j] = (System.Int32)(((System.Int32)fd.fields[j]) + starts[i]);
}
break;
}
}
if (hq == null)
{
hq = new FieldDocSortedHitQueue(docs.fields, n);
}
totalHits += docs.TotalHits; // update totalHits
maxScore = System.Math.Max(maxScore, docs.GetMaxScore());
ScoreDoc[] scoreDocs = docs.ScoreDocs;
for (int j = 0; j < scoreDocs.Length; j++)
{
// merge scoreDocs into hq
ScoreDoc scoreDoc = scoreDocs[j];
scoreDoc.doc += starts[i]; // convert doc
if (!hq.Insert(scoreDoc))
{
break; // no more scores > minScore
}
}
}
ScoreDoc[] scoreDocs2 = new ScoreDoc[hq.Size()];
for (int i = hq.Size() - 1; i >= 0; i--)
{
// put docs in array
scoreDocs2[i] = (ScoreDoc)hq.Pop();
}
return(new TopFieldDocs(totalHits, scoreDocs2, hq.GetFields(), maxScore));
}
override public void Run()
{
try
{
docs = (sort == null)?searchable.Search(weight, filter, nDocs):searchable.Search(weight, filter, nDocs, sort);
}
// Store the IOException for later use by the caller of this thread
catch (System.Exception e)
{
this.ioe = e;
}
if (this.ioe == null)
{
// if we are sorting by fields, we need to tell the field sorted hit queue
// the actual type of fields, in case the original list contained AUTO.
// if the searchable returns null for fields, we'll have problems.
if (sort != null)
{
TopFieldDocs docsFields = (TopFieldDocs)docs;
// If one of the Sort fields is FIELD_DOC, need to fix its values, so that
// it will break ties by doc Id properly. Otherwise, it will compare to
// 'relative' doc Ids, that belong to two different searchables.
for (int j = 0; j < docsFields.fields.Length; j++)
{
if (docsFields.fields[j].GetType() == SortField.DOC)
{
// iterate over the score docs and change their fields value
for (int j2 = 0; j2 < docs.ScoreDocs.Length; j2++)
{
FieldDoc fd = (FieldDoc)docs.ScoreDocs[j2];
fd.fields[j] = (System.Int32)(((System.Int32)fd.fields[j]) + starts[i]);
}
break;
}
}
((FieldDocSortedHitQueue)hq).SetFields(docsFields.fields);
}
ScoreDoc[] scoreDocs = docs.ScoreDocs;
for (int j = 0; j < scoreDocs.Length; j++)
{
// merge scoreDocs into hq
ScoreDoc scoreDoc = scoreDocs[j];
scoreDoc.doc += starts[i]; // convert doc
//it would be so nice if we had a thread-safe insert
lock (hq)
{
if (!hq.Insert(scoreDoc))
{
break;
}
} // no more scores > minScore
}
}
}
