private void QueryToSpanQuery(Query query, ICollection <byte[]> payloads)
{
if (query is BooleanQuery)
{
BooleanClause[] queryClauses = ((BooleanQuery)query).GetClauses();
for (int i = 0; i < queryClauses.Length; i++)
{
if (!queryClauses[i].IsProhibited())
{
QueryToSpanQuery(queryClauses[i].GetQuery(), payloads);
}
}
}
else if (query is PhraseQuery)
{
Term[] phraseQueryTerms = ((PhraseQuery)query).GetTerms();
SpanQuery[] clauses = new SpanQuery[phraseQueryTerms.Length];
for (int i = 0; i < phraseQueryTerms.Length; i++)
{
clauses[i] = new SpanTermQuery(phraseQueryTerms[i]);
}
int slop = ((PhraseQuery)query).GetSlop();
bool inorder = false;
if (slop == 0)
{
inorder = true;
}
SpanNearQuery sp = new SpanNearQuery(clauses, slop, inorder);
sp.SetBoost(query.GetBoost());
GetPayloads(payloads, sp);
}
else if (query is TermQuery)
{
SpanTermQuery stq = new SpanTermQuery(((TermQuery)query).GetTerm());
stq.SetBoost(query.GetBoost());
GetPayloads(payloads, stq);
}
else if (query is SpanQuery)
{
GetPayloads(payloads, (SpanQuery)query);
}
else if (query is FilteredQuery)
{
QueryToSpanQuery(((FilteredQuery)query).GetQuery(), payloads);
}
else if (query is DisjunctionMaxQuery)
{
for (System.Collections.IEnumerator iterator = ((DisjunctionMaxQuery)query).Iterator(); iterator.MoveNext();)
{
QueryToSpanQuery((Query)iterator.Current, payloads);
}
}
else if (query is MultiPhraseQuery)
{
MultiPhraseQuery mpq = (MultiPhraseQuery)query;
System.Collections.IList termArrays = mpq.GetTermArrays();
int[] positions = mpq.GetPositions();
if (positions.Length > 0)
{
int maxPosition = positions[positions.Length - 1];
for (int i = 0; i < positions.Length - 1; ++i)
{
if (positions[i] > maxPosition)
{
maxPosition = positions[i];
}
}
System.Collections.ArrayList[] disjunctLists = new System.Collections.ArrayList[maxPosition + 1];
int distinctPositions = 0;
for (int i = 0; i < termArrays.Count; ++i)
{
Term[] termArray = (Term[])termArrays[i];
System.Collections.IList disjuncts = disjunctLists[positions[i]];
if (disjuncts == null)
{
disjuncts = (disjunctLists[positions[i]] = new System.Collections.ArrayList(termArray.Length));
++distinctPositions;
}
for (int j = 0; j < termArray.Length; ++j)
{
disjuncts.Add(new SpanTermQuery(termArray[j]));
}
}
int positionGaps = 0;
int position = 0;
SpanQuery[] clauses = new SpanQuery[distinctPositions];
for (int i = 0; i < disjunctLists.Length; ++i)
{
System.Collections.ArrayList disjuncts = disjunctLists[i];
if (disjuncts != null)
{
clauses[position++] = new SpanOrQuery((SpanQuery[])(disjuncts.ToArray(typeof(SpanQuery[]))));
}
else
{
++positionGaps;
}
}
int slop = mpq.GetSlop();
bool inorder = (slop == 0);
SpanNearQuery sp = new SpanNearQuery(clauses, slop + positionGaps, inorder);
sp.SetBoost(query.GetBoost());
GetPayloads(payloads, sp);
}
}
}