private readonly Query match; // query to match
#endregion Fields
#region Constructors
public BoostingQuery(Query match, Query context, float boost)
{
this.match = match;
this.context = (Query) context.Clone(); // clone before boost
this.boost = boost;
this.context.Boost = 0.0f; // ignore context-only matches
}
/// <summary>
/// check very basic hashCode and equals </summary>
public static void CheckHashEquals(Query q)
{
Query q2 = (Query)q.Clone();
CheckEqual(q, q2);
Query q3 = (Query)q.Clone();
q3.Boost = 7.21792348f;
CheckUnequal(q, q3);
// test that a class check is done so that no exception is thrown
// in the implementation of equals()
Query whacky = new QueryAnonymousInnerClassHelper();
whacky.Boost = q.Boost;
CheckUnequal(q, whacky);
// null test
Assert.IsFalse(q.Equals(null));
}
/// <summary>
/// Check very basic <see cref="object.GetHashCode()"/> and <see cref="object.Equals(object)"/>. </summary>
public static void CheckHashEquals(Query q)
{
Query q2 = (Query)q.Clone();
CheckEqual(q, q2);
Query q3 = (Query)q.Clone();
q3.Boost = 7.21792348f;
CheckUnequal(q, q3);
// test that a class check is done so that no exception is thrown
// in the implementation of equals()
Query whacky = new QueryAnonymousInnerClassHelper();
whacky.Boost = q.Boost;
CheckUnequal(q, whacky);
// null test
Assert.IsFalse(q.Equals(null));
}
public override Query Rewrite(IndexReader reader)
{
if (minNrShouldMatch == 0 && clauses.Count == 1)
{
// optimize 1-clause queries
BooleanClause c = (BooleanClause)clauses[0];
if (!c.IsProhibited())
{
// just return clause
Query query = c.GetQuery().Rewrite(reader); // rewrite first
if (GetBoost() != 1.0f)
{
// incorporate boost
if (query == c.GetQuery())
{
// if rewrite was no-op
query = (Query)query.Clone(); // then clone before boost
}
query.SetBoost(GetBoost() * query.GetBoost());
}
return(query);
}
}
BooleanQuery clone = null; // recursively rewrite
for (int i = 0; i < clauses.Count; i++)
{
BooleanClause c = (BooleanClause)clauses[i];
Query query = c.GetQuery().Rewrite(reader);
if (query != c.GetQuery())
{
// clause rewrote: must clone
if (clone == null)
{
clone = (BooleanQuery)this.Clone();
}
clone.clauses[i] = new BooleanClause(query, c.GetOccur());
}
}
if (clone != null)
{
return(clone); // some clauses rewrote
}
else
{
return(this); // no clauses rewrote
}
}
public override Query Rewrite(IndexReader reader)
{
if (MinNrShouldMatch == 0 && clauses.Count == 1) // optimize 1-clause queries
{
BooleanClause c = clauses[0];
if (!c.Prohibited) // just return clause
{
Query query = c.Query.Rewrite(reader); // rewrite first
if (Boost != 1.0f) // incorporate boost
{
if (query == c.Query) // if rewrite was no-op
{
query = (Query)query.Clone(); // then clone before boost
}
// Since the BooleanQuery only has 1 clause, the BooleanQuery will be
// written out. Therefore the rewritten Query's boost must incorporate both
// the clause's boost, and the boost of the BooleanQuery itself
query.Boost = Boost * query.Boost;
}
return(query);
}
}
BooleanQuery clone = null; // recursively rewrite
for (int i = 0; i < clauses.Count; i++)
{
BooleanClause c = clauses[i];
Query query = c.Query.Rewrite(reader);
if (query != c.Query) // clause rewrote: must clone
{
if (clone == null)
{
// The BooleanQuery clone is lazily initialized so only initialize
// it if a rewritten clause differs from the original clause (and hasn't been
// initialized already). If nothing differs, the clone isn't needlessly created
clone = (BooleanQuery)this.Clone();
}
clone.clauses[i] = new BooleanClause(query, c.Occur_);
}
}
if (clone != null)
{
return(clone); // some clauses rewrote
}
else
{
return(this); // no clauses rewrote
}
}
/// <summary>Optimize our representation and our subqueries representations</summary>
/// <param name="reader">the IndexReader we query
/// </param>
/// <returns> an optimized copy of us (which may not be a copy if there is nothing to optimize)
/// </returns>
public override Query Rewrite(IndexReader reader)
{
int numDisjunctions = disjuncts.Count;
if (numDisjunctions == 1)
{
Query singleton = (Query)disjuncts[0];
Query result = singleton.Rewrite(reader);
if (GetBoost() != 1.0f)
{
if (result == singleton)
{
result = (Query)result.Clone();
}
result.SetBoost(GetBoost() * result.GetBoost());
}
return(result);
}
DisjunctionMaxQuery clone = null;
for (int i = 0; i < numDisjunctions; i++)
{
Query clause = (Query)disjuncts[i];
Query rewrite = clause.Rewrite(reader);
if (rewrite != clause)
{
if (clone == null)
{
clone = (DisjunctionMaxQuery)this.Clone();
}
clone.disjuncts[i] = rewrite;
}
}
if (clone != null)
{
return(clone);
}
else
{
return(this);
}
}
private static void Check(Query q1, Searcher s, bool wrap)
{
try
{
Check(q1);
if (s != null)
{
if (s is IndexSearcher)
{
IndexSearcher is_Renamed = (IndexSearcher)s;
CheckFirstSkipTo(q1, is_Renamed);
CheckSkipTo(q1, is_Renamed);
if (wrap)
{
Check(q1, WrapUnderlyingReader(is_Renamed, -1), false);
Check(q1, WrapUnderlyingReader(is_Renamed, 0), false);
Check(q1, WrapUnderlyingReader(is_Renamed, +1), false);
}
}
if (wrap)
{
Check(q1, WrapSearcher(s, -1), false);
Check(q1, WrapSearcher(s, 0), false);
Check(q1, WrapSearcher(s, +1), false);
}
CheckExplanations(q1, s);
CheckSerialization(q1, s);
Query q2 = (Query)q1.Clone();
CheckEqual(s.Rewrite(q1, null), s.Rewrite(q2, null));
}
}
catch (System.IO.IOException e)
{
throw new System.SystemException("", e);
}
}
/// <summary>check very basic hashCode and equals </summary>
public static void CheckHashEquals(Query q)
{
Query q2 = (Query) q.Clone();
CheckEqual(q, q2);
Query q3 = (Query) q.Clone();
q3.SetBoost(7.21792348f);
CheckUnequal(q, q3);
// test that a class check is done so that no exception is thrown
// in the implementation of equals()
Query whacky = new AnonymousClassQuery();
whacky.SetBoost(q.GetBoost());
CheckUnequal(q, whacky);
}
public override object Clone()
{
return(Wrap(new Random(Random.Next()), (Query)@in.Clone()));
}
public static void Check(Random random, Query q1, IndexSearcher s, bool wrap)
{
try
{
Check(q1);
if (s != null)
{
CheckFirstSkipTo(q1, s);
CheckSkipTo(q1, s);
if (wrap)
{
Check(random, q1, WrapUnderlyingReader(random, s, -1), false);
Check(random, q1, WrapUnderlyingReader(random, s, 0), false);
Check(random, q1, WrapUnderlyingReader(random, s, +1), false);
}
CheckExplanations(q1, s);
Query q2 = (Query)q1.Clone();
CheckEqual(s.Rewrite(q1), s.Rewrite(q2));
}
}
catch (IOException e)
{
throw new Exception(e.Message, e);
}
}
private static void Check(Query q1, Searcher s, bool wrap)
{
try
{
Check(q1);
if (s != null)
{
if (s is IndexSearcher)
{
IndexSearcher is_Renamed = (IndexSearcher) s;
CheckFirstSkipTo(q1, is_Renamed);
CheckSkipTo(q1, is_Renamed);
if (wrap)
{
Check(q1, WrapUnderlyingReader(is_Renamed, - 1), false);
Check(q1, WrapUnderlyingReader(is_Renamed, 0), false);
Check(q1, WrapUnderlyingReader(is_Renamed, + 1), false);
}
}
if (wrap)
{
Check(q1, WrapSearcher(s, - 1), false);
Check(q1, WrapSearcher(s, 0), false);
Check(q1, WrapSearcher(s, + 1), false);
}
CheckExplanations(q1, s);
CheckSerialization(q1, s);
Query q2 = (Query) q1.Clone();
CheckEqual(s.Rewrite(q1), s.Rewrite(q2));
}
}
catch (System.IO.IOException e)
{
throw new System.SystemException("", e);
}
}
public override object Clone()
{
return(Wrap(new J2N.Randomizer(random.NextInt64()), (Query)@in.Clone()));
}