-
Notifications
You must be signed in to change notification settings - Fork 623
/
PositiveScoresOnlyCollector.cs
60 lines (53 loc) · 2.05 KB
/
PositiveScoresOnlyCollector.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
namespace Lucene.Net.Search
{
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using AtomicReaderContext = Lucene.Net.Index.AtomicReaderContext;
/// <summary>
/// A <see cref="ICollector"/> implementation which wraps another
/// <see cref="ICollector"/> and makes sure only documents with
/// scores > 0 are collected.
/// </summary>
public class PositiveScoresOnlyCollector : ICollector
{
private readonly ICollector c;
private Scorer scorer;
public PositiveScoresOnlyCollector(ICollector c)
{
this.c = c;
}
public virtual void Collect(int doc)
{
if (scorer.GetScore() > 0)
{
c.Collect(doc);
}
}
public virtual void SetNextReader(AtomicReaderContext context)
{
c.SetNextReader(context);
}
public virtual void SetScorer(Scorer scorer)
{
// Set a ScoreCachingWrappingScorer in case the wrapped Collector will call
// score() also.
this.scorer = new ScoreCachingWrappingScorer(scorer);
c.SetScorer(this.scorer);
}
public virtual bool AcceptsDocsOutOfOrder => c.AcceptsDocsOutOfOrder;
}
}