/// <summary> Convenience routine to make it easy to return the most interesting words in a document.
/// More advanced users will call {@link #RetrieveTerms(java.io.Reader) retrieveTerms()} directly.
/// </summary>
/// <param name="r">the source document
/// </param>
/// <returns> the most interesting words in the document
///
/// </returns>
/// <seealso cref="#RetrieveTerms(java.io.Reader)">
/// </seealso>
/// <seealso cref="#setMaxQueryTerms">
/// </seealso>
public String[] RetrieveInterestingTerms(StreamReader r)
{
ArrayList al = new ArrayList(maxQueryTerms);
Lucene.Net.Util.PriorityQueue pq = RetrieveTerms(r);
Object cur;
int lim = maxQueryTerms; // have to be careful, retrieveTerms returns all words but that's probably not useful to our caller...
// we just want to return the top words
while (((cur = pq.Pop()) != null) && lim-- > 0)
{
PQRecord ar = (PQRecord)cur;
al.Add(ar.word); // the 1st entry is the interesting word
}
String[] res = new String[al.Count];
// return (System.String[]) SupportClass.ICollectionSupport.ToArray(al, res);
return((String[])al.ToArray(typeof(String)));
}
/// <summary> Create the More like query from a PriorityQueue</summary>
private Query CreateQuery(Lucene.Net.Util.PriorityQueue q)
{
Lucene.Net.Search.BooleanQuery query = new Lucene.Net.Search.BooleanQuery();
Object cur;
int qterms = 0;
float bestScore = 0;
while (((cur = q.Pop()) != null))
{
PQRecord ar = (PQRecord)cur;
Lucene.Net.Search.TermQuery tq = new Lucene.Net.Search.TermQuery(new Term(ar.topField, ar.word));
if (boost)
{
if (qterms == 0)
{
bestScore = ar.score;
}
float myScore = ar.score;
tq.SetBoost(myScore / bestScore);
}
try
{
query.Add(tq, Lucene.Net.Search.BooleanClause.Occur.SHOULD);
}
catch (Lucene.Net.Search.BooleanQuery.TooManyClauses)
{
break;
}
qterms++;
if (maxQueryTerms > 0 && qterms >= maxQueryTerms)
{
break;
}
}
return(query);
}
public MultiSearcherThread(Searchable searchable, Weight weight, Filter filter, int nDocs, FieldDocSortedHitQueue hq, Sort sort, 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;
this.sort = sort;
}
/// <summary>Constructor to collect the top-scoring documents by using the given PQ.</summary>
/// <param name="hq">the PQ to use by this instance.
/// </param>
protected internal TopDocCollector(PriorityQueue<ScoreDoc> hq)
{
this.hq = hq;
}
internal TopDocCollector(int numHits, PriorityQueue<ScoreDoc> hq)
{
this.hq = hq;
}
