/// <summary> Tries to add new documents to hitDocs.
/// Ensures that the hit numbered <code>min</code> has been retrieved.
/// </summary>
private void GetMoreDocs(int min)
{
if (hitDocs.Count > min)
{
min = hitDocs.Count;
}
int n = min * 2; // double # retrieved
TopDocs topDocs = (sort == null) ? searcher.Search(weight, filter, n) : searcher.Search(weight, filter, n, sort);
length = topDocs.totalHits;
ScoreDoc[] scoreDocs = topDocs.scoreDocs;
float scoreNorm = 1.0f;
if (length > 0 && topDocs.GetMaxScore() > 1.0f)
{
scoreNorm = 1.0f / topDocs.GetMaxScore();
}
int end = scoreDocs.Length < length?scoreDocs.Length:length;
for (int i = hitDocs.Count; i < end; i++)
{
hitDocs.Add(new HitDoc(scoreDocs[i].score * scoreNorm, scoreDocs[i].doc));
}
}
public virtual void TestCustomSimilarity()
{
RAMDirectory dir = new RAMDirectory();
InitIndex(dir, 10, true, "x"); // documents with two tokens "doc0" and "x", "doc1" and x, etc...
IndexSearcher srchr = new IndexSearcher(dir);
MultiSearcher msrchr = GetMultiSearcherInstance(new Searcher[] { srchr });
Similarity customSimilarity = new AnonymousClassDefaultSimilarity(this);
srchr.SetSimilarity(customSimilarity);
msrchr.SetSimilarity(customSimilarity);
Query query = new TermQuery(new Term("contents", "doc0"));
// Get a score from IndexSearcher
TopDocs topDocs = srchr.Search(query, null, 1);
float score1 = topDocs.GetMaxScore();
// Get the score from MultiSearcher
topDocs = msrchr.Search(query, null, 1);
float scoreN = topDocs.GetMaxScore();
// The scores from the IndexSearcher and Multisearcher should be the same
// if the same similarity is used.
Assert.AreEqual(score1, scoreN, 1e-6, "MultiSearcher score must be equal to single esrcher score!");
}
/// <summary> Tries to add new documents to hitDocs.
/// Ensures that the hit numbered <code>min</code> has been retrieved.
/// </summary>
private void GetMoreDocs(int min)
{
if (hitDocs.Count > min)
{
min = hitDocs.Count;
}
int n = min * 2; // double # retrieved
TopDocs topDocs = (sort == null)?searcher.Search(weight, filter, n):searcher.Search(weight, filter, n, sort);
length = topDocs.totalHits;
ScoreDoc[] scoreDocs = topDocs.scoreDocs;
float scoreNorm = 1.0f;
if (length > 0 && topDocs.GetMaxScore() > 1.0f)
{
scoreNorm = 1.0f / topDocs.GetMaxScore();
}
int start = hitDocs.Count - nDeletedHits;
// any new deletions?
int nDels2 = CountDeletions(searcher);
debugCheckedForDeletions = false;
if (nDeletions < 0 || nDels2 > nDeletions)
{
// either we cannot count deletions, or some "previously valid hits" might have been deleted, so find exact start point
nDeletedHits = 0;
debugCheckedForDeletions = true;
int i2 = 0;
for (int i1 = 0; i1 < hitDocs.Count && i2 < scoreDocs.Length; i1++)
{
int id1 = ((HitDoc)hitDocs[i1]).id;
int id2 = scoreDocs[i2].doc;
if (id1 == id2)
{
i2++;
}
else
{
nDeletedHits++;
}
}
start = i2;
}
int end = scoreDocs.Length < length?scoreDocs.Length:length;
length += nDeletedHits;
for (int i = start; i < end; i++)
{
hitDocs.Add(new HitDoc(scoreDocs[i].score * scoreNorm, scoreDocs[i].doc));
}
nDeletions = nDels2;
}
public virtual void TestMaxScore()
{
// ask for all results
TopDocsCollector tdc = doSearch(15);
TopDocs td = tdc.TopDocs();
Assert.AreEqual(MAX_SCORE, td.GetMaxScore(), 0f);
// ask for 5 last results
tdc = doSearch(15);
td = tdc.TopDocs(10);
Assert.AreEqual(MAX_SCORE, td.GetMaxScore(), 0f);
}
private float CheckPhraseQuery(Document doc, PhraseQuery query, int slop, int expectedNumResults)
{
query.SetSlop(slop);
RAMDirectory ramDir = new RAMDirectory();
WhitespaceAnalyzer analyzer = new WhitespaceAnalyzer();
IndexWriter writer = new IndexWriter(ramDir, analyzer, MaxFieldLength.UNLIMITED);
writer.AddDocument(doc);
writer.Close();
IndexSearcher searcher = new IndexSearcher(ramDir);
TopDocs td = searcher.Search(query, null, 10);
//System.out.println("slop: "+slop+" query: "+query+" doc: "+doc+" Expecting number of hits: "+expectedNumResults+" maxScore="+td.getMaxScore());
Assert.AreEqual(expectedNumResults, td.TotalHits, "slop: " + slop + " query: " + query + " doc: " + doc + " Wrong number of hits");
//QueryUtils.check(query,searcher);
searcher.Close();
ramDir.Close();
return(td.GetMaxScore());
}
public virtual float GetMaxScore()
{
return(docs.GetMaxScore());
}