public override void Search(Weight weight, Filter filter, Collector collector)
{
if (filter == null)
{
for (int i = 0; i < subReaders.Length; i++)
{
// search each subreader
collector.SetNextReader(subReaders[i], docStarts[i]);
Scorer scorer = weight.Scorer(subReaders[i], !collector.AcceptsDocsOutOfOrder(), true);
if (scorer != null)
{
scorer.Score(collector);
}
}
}
else
{
for (int i = 0; i < subReaders.Length; i++)
{
// search each subreader
collector.SetNextReader(subReaders[i], docStarts[i]);
SearchWithFilter(subReaders[i], weight, filter, collector);
}
}
}
/// <summary>
/// Lower-level search API.
///
/// <p>
/// <seealso cref="Collector#collect(int)"/> is called for every document. <br>
///
/// <p>
/// NOTE: this method executes the searches on all given leaves exclusively.
/// To search across all the searchers leaves use <seealso cref="#leafContexts"/>.
/// </summary>
/// <param name="leaves">
/// the searchers leaves to execute the searches on </param>
/// <param name="weight">
/// to match documents </param>
/// <param name="collector">
/// to receive hits </param>
/// <exception cref="BooleanQuery.TooManyClauses"> If a query would exceed
/// <seealso cref="BooleanQuery#getMaxClauseCount()"/> clauses. </exception>
protected internal virtual void Search(IList <AtomicReaderContext> leaves, Weight weight, Collector collector)
{
// TODO: should we make this
// threaded...? the Collector could be sync'd?
// always use single thread:
foreach (AtomicReaderContext ctx in leaves) // search each subreader
{
try
{
collector.NextReader = ctx;
}
catch (CollectionTerminatedException)
{
// there is no doc of interest in this reader context
// continue with the following leaf
continue;
}
BulkScorer scorer = weight.BulkScorer(ctx, !collector.AcceptsDocsOutOfOrder(), ctx.AtomicReader.LiveDocs);
if (scorer != null)
{
try
{
scorer.Score(collector);
}
catch (CollectionTerminatedException)
{
// collection was terminated prematurely
// continue with the following leaf
}
}
}
}
internal RandomOrderCollector(Random random, Collector @in)
{
if ([email protected]())
{
throw new System.ArgumentException();
}
this.@in = @in;
this.Random = random;
BufferSize = 1 + random.Next(100);
DocIDs = new int[BufferSize];
Scores = new float[BufferSize];
Freqs = new int[BufferSize];
Buffered = 0;
}
internal RandomOrderCollector(Random random, Collector @in)
{
if ([email protected]())
{
throw new System.ArgumentException();
}
this.@in = @in;
this.Random = random;
BufferSize = 1 + random.Next(100);
DocIDs = new int[BufferSize];
Scores = new float[BufferSize];
Freqs = new int[BufferSize];
Buffered = 0;
}
/// <summary>
/// Reused by the specialized inner classes. </summary>
internal virtual void ReplayInit(Collector other)
{
if (!Cached)
{
throw new InvalidOperationException("cannot replay: cache was cleared because too much RAM was required");
}
if (!other.AcceptsDocsOutOfOrder() && this.Other.AcceptsDocsOutOfOrder())
{
throw new System.ArgumentException("cannot replay: given collector does not support " + "out-of-order collection, while the wrapped collector does. " + "Therefore cached documents may be out-of-order.");
}
//System.out.println("CC: replay totHits=" + (upto + base));
if (LastReaderContext != null)
{
CachedSegs.Add(new SegStart(LastReaderContext, @base + Upto));
LastReaderContext = null;
}
}
public virtual void TestCollector()
{
// Tests that the collector delegates calls to input collectors properly.
// Tests that the collector handles some null collectors well. If it
// doesn't, an NPE would be thrown.
DummyCollector[] dcs = new DummyCollector[] { new DummyCollector(), new DummyCollector() };
Collector c = MultiCollector.Wrap(dcs);
Assert.IsTrue(c.AcceptsDocsOutOfOrder());
c.Collect(1);
c.NextReader = null;
c.Scorer = null;
foreach (DummyCollector dc in dcs)
{
Assert.IsTrue(dc.AcceptsDocsOutOfOrderCalled);
Assert.IsTrue(dc.CollectCalled);
Assert.IsTrue(dc.SetNextReaderCalled);
Assert.IsTrue(dc.SetScorerCalled);
}
}
public virtual void TestNullCollectors()
{
// Tests that the collector rejects all null collectors.
try
{
MultiCollector.Wrap(null, null);
Assert.Fail("only null collectors should not be supported");
}
catch (System.ArgumentException e)
{
// expected
}
// Tests that the collector handles some null collectors well. If it
// doesn't, an NPE would be thrown.
Collector c = MultiCollector.Wrap(new DummyCollector(), null, new DummyCollector());
Assert.IsTrue(c is MultiCollector);
Assert.IsTrue(c.AcceptsDocsOutOfOrder());
c.Collect(1);
c.NextReader = null;
c.Scorer = null;
}
public override bool AcceptsDocsOutOfOrder()
{
return(Other.AcceptsDocsOutOfOrder());
}
public override void Search(Weight weight, Filter filter, Collector collector)
{
if (filter == null)
{
for (int i = 0; i < subReaders.Length; i++)
{
// search each subreader
collector.SetNextReader(subReaders[i], docStarts[i]);
Scorer scorer = weight.Scorer(subReaders[i], !collector.AcceptsDocsOutOfOrder(), true);
if (scorer != null)
{
scorer.Score(collector);
}
}
}
else
{
for (int i = 0; i < subReaders.Length; i++)
{
// search each subreader
collector.SetNextReader(subReaders[i], docStarts[i]);
SearchWithFilter(subReaders[i], weight, filter, collector);
}
}
}
public override bool AcceptsDocsOutOfOrder()
{
return(collector.AcceptsDocsOutOfOrder());
}
/// <summary>
/// Reused by the specialized inner classes. </summary>
internal virtual void ReplayInit(Collector other)
{
if (!Cached)
{
throw new InvalidOperationException("cannot replay: cache was cleared because too much RAM was required");
}
if (!other.AcceptsDocsOutOfOrder() && this.Other.AcceptsDocsOutOfOrder())
{
throw new System.ArgumentException("cannot replay: given collector does not support " + "out-of-order collection, while the wrapped collector does. " + "Therefore cached documents may be out-of-order.");
}
//System.out.println("CC: replay totHits=" + (upto + base));
if (LastReaderContext != null)
{
CachedSegs.Add(new SegStart(LastReaderContext, @base + Upto));
LastReaderContext = null;
}
}
