public override TopDocs Search(Weight weight, Filter filter, int nDocs)
{
HitQueue hq = new HitQueue(nDocs, false);
int totalHits = 0;
for (int i = 0; i < searchables.Length; i++)
{
// search each searcher
TopDocs docs = searchables[i].Search(weight, filter, nDocs);
totalHits += docs.TotalHits; // update totalHits
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();
}
float maxScore = (totalHits == 0)?System.Single.NegativeInfinity:scoreDocs2[0].score;
return(new TopDocs(totalHits, scoreDocs2, maxScore));
}
/// <summary> A search implementation which spans a new thread for each
/// Searchable, waits for each search to complete and merge
/// the results back together.
/// </summary>
public override TopDocs Search(Weight weight, Filter filter, int nDocs)
{
HitQueue hq = new HitQueue(nDocs, false);
int totalHits = 0;
MultiSearcherThread[] msta = new MultiSearcherThread[searchables.Length];
for (int i = 0; i < searchables.Length; i++)
{
// search each searchable
// Assume not too many searchables and cost of creating a thread is by far inferior to a search
msta[i] = new MultiSearcherThread(searchables[i], weight, filter, nDocs, hq, i, starts, "MultiSearcher thread #" + (i + 1));
msta[i].Start();
}
for (int i = 0; i < searchables.Length; i++)
{
try
{
msta[i].Join();
}
catch (System.Threading.ThreadInterruptedException ie)
{
// In 3.0 we will change this to throw
// InterruptedException instead
SupportClass.ThreadClass.Current().Interrupt();
throw new System.SystemException(ie.Message, ie);
}
System.IO.IOException ioe = msta[i].GetIOException();
if (ioe == null)
{
totalHits += msta[i].Hits();
}
else
{
// if one search produced an IOException, rethrow it
throw ioe;
}
}
ScoreDoc[] scoreDocs = new ScoreDoc[hq.Size()];
for (int i = hq.Size() - 1; i >= 0; i--)
{
// put docs in array
scoreDocs[i] = (ScoreDoc)hq.Pop();
}
float maxScore = (totalHits == 0)?System.Single.NegativeInfinity:scoreDocs[0].score;
return(new TopDocs(totalHits, scoreDocs, maxScore));
}
public override TopDocs Search(Weight weight, Filter filter, int nDocs)
{
HitQueue hq = new HitQueue(nDocs, false);
int totalHits = 0;
for (int i = 0; i < searchables.Length; i++)
{
// search each searcher
TopDocs docs = searchables[i].Search(weight, filter, nDocs);
totalHits += docs.TotalHits; // update totalHits
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();
float maxScore = (totalHits == 0)?System.Single.NegativeInfinity:scoreDocs2[0].score;
return new TopDocs(totalHits, scoreDocs2, maxScore);
}
public MultiSearcherThread(Searchable searchable, Weight weight, Filter filter, int nDocs, HitQueue hq, int i, int[] starts, System.String name) : base(name)
{
this.searchable = searchable;
this.weight = weight;
this.filter = filter;
this.nDocs = nDocs;
this.hq = hq;
this.i = i;
this.starts = starts;
}
/// <summary> A search implementation which spans a new thread for each
/// Searchable, waits for each search to complete and merge
/// the results back together.
/// </summary>
public override TopDocs Search(Weight weight, Filter filter, int nDocs)
{
HitQueue hq = new HitQueue(nDocs, false);
int totalHits = 0;
MultiSearcherThread[] msta = new MultiSearcherThread[searchables.Length];
for (int i = 0; i < searchables.Length; i++)
{
// search each searchable
// Assume not too many searchables and cost of creating a thread is by far inferior to a search
msta[i] = new MultiSearcherThread(searchables[i], weight, filter, nDocs, hq, i, starts, "MultiSearcher thread #" + (i + 1));
msta[i].Start();
}
for (int i = 0; i < searchables.Length; i++)
{
try
{
msta[i].Join();
}
catch (System.Threading.ThreadInterruptedException ie)
{
// In 3.0 we will change this to throw
// InterruptedException instead
SupportClass.ThreadClass.Current().Interrupt();
throw new System.SystemException(ie.Message, ie);
}
System.IO.IOException ioe = msta[i].GetIOException();
if (ioe == null)
{
totalHits += msta[i].Hits();
}
else
{
// if one search produced an IOException, rethrow it
throw ioe;
}
}
ScoreDoc[] scoreDocs = new ScoreDoc[hq.Size()];
for (int i = hq.Size() - 1; i >= 0; i--)
// put docs in array
scoreDocs[i] = (ScoreDoc) hq.Pop();
float maxScore = (totalHits == 0)?System.Single.NegativeInfinity:scoreDocs[0].score;
return new TopDocs(totalHits, scoreDocs, maxScore);
}
public MultiSearcherThread(Searchable searchable, Weight weight, Filter filter, int nDocs, HitQueue hq, int i, int[] starts, System.String name):base(name)
{
this.searchable = searchable;
this.weight = weight;
this.filter = filter;
this.nDocs = nDocs;
this.hq = hq;
this.i = i;
this.starts = starts;
}