forked from apache/lucenenet
-
Notifications
You must be signed in to change notification settings - Fork 1
/
LongFieldSource.cs
175 lines (154 loc) · 6.18 KB
/
LongFieldSource.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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
// Lucene version compatibility level 4.8.1
using J2N.Numerics;
using J2N.Text;
using Lucene.Net.Index;
using Lucene.Net.Queries.Function.DocValues;
using Lucene.Net.Search;
using Lucene.Net.Util;
using Lucene.Net.Util.Mutable;
using System;
using System.Collections;
using System.Globalization;
namespace Lucene.Net.Queries.Function.ValueSources
{
/*
* 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.
*/
/// <summary>
/// Obtains <see cref="long"/> field values from <see cref="IFieldCache.GetInt64s(AtomicReader, string, FieldCache.IInt64Parser, bool)"/> and makes those
/// values available as other numeric types, casting as needed.
/// <para/>
/// NOTE: This was LongFieldSource in Lucene
/// </summary>
public class Int64FieldSource : FieldCacheSource
{
protected readonly FieldCache.IInt64Parser m_parser;
public Int64FieldSource(string field)
: this(field, null)
{
}
public Int64FieldSource(string field, FieldCache.IInt64Parser parser)
: base(field)
{
this.m_parser = parser;
}
public override string GetDescription()
{
return "long(" + m_field + ')';
}
/// <summary>
/// NOTE: This was externalToLong() in Lucene
/// </summary>
public virtual long ExternalToInt64(string extVal)
{
return Convert.ToInt64(extVal, CultureInfo.InvariantCulture);
}
/// <summary>
/// NOTE: This was longToObject() in Lucene
/// </summary>
public virtual object Int64ToObject(long val)
{
return J2N.Numerics.Int64.GetInstance(val); // LUCENENET: In Java, the conversion to instance of java.util.Long is implicit, but we need to do an explicit conversion
}
/// <summary>
/// NOTE: This was longToString() in Lucene
/// </summary>
public virtual string Int64ToString(long val)
{
object obj = Int64ToObject(val);
// LUCENENET: Optimized path for Number. We fall back to string.Format.
if (obj is Number number)
return number.ToString(NumberFormatInfo.InvariantInfo);
return string.Format(StringFormatter.InvariantCulture, "{0}", obj);
}
public override FunctionValues GetValues(IDictionary context, AtomicReaderContext readerContext)
{
var arr = m_cache.GetInt64s(readerContext.AtomicReader, m_field, m_parser, true);
var valid = m_cache.GetDocsWithField(readerContext.AtomicReader, m_field);
return new Int64DocValuesAnonymousClass(this, this, arr, valid);
}
private class Int64DocValuesAnonymousClass : Int64DocValues
{
private readonly Int64FieldSource outerInstance;
private readonly FieldCache.Int64s arr;
private readonly IBits valid;
public Int64DocValuesAnonymousClass(Int64FieldSource outerInstance, Int64FieldSource @this, FieldCache.Int64s arr, IBits valid)
: base(@this)
{
this.outerInstance = outerInstance;
this.arr = arr;
this.valid = valid;
}
/// <summary>
/// NOTE: This was longVal() in Lucene
/// </summary>
public override long Int64Val(int doc)
{
return arr.Get(doc);
}
public override bool Exists(int doc)
{
return arr.Get(doc) != 0 || valid.Get(doc);
}
public override object ObjectVal(int doc)
{
return valid.Get(doc) ? outerInstance.Int64ToObject(arr.Get(doc)) : null;
}
public override string StrVal(int doc)
{
return valid.Get(doc) ? outerInstance.Int64ToString(arr.Get(doc)) : null;
}
/// <summary>
/// NOTE: This was externalToLong() in Lucene
/// </summary>
protected override long ExternalToInt64(string extVal)
{
return outerInstance.ExternalToInt64(extVal);
}
public override ValueFiller GetValueFiller()
{
return new ValueFiller.AnonymousValueFiller<MutableValueInt64>(outerInstance.NewMutableValueInt64(), fillValue: (doc, mutableValue) =>
{
mutableValue.Value = arr.Get(doc);
mutableValue.Exists = mutableValue.Value != 0 || valid.Get(doc);
});
}
}
/// <summary>
/// NOTE: This was longToString() in Lucene
/// </summary>
protected virtual MutableValueInt64 NewMutableValueInt64()
{
return new MutableValueInt64();
}
public override bool Equals(object o)
{
if (o.GetType() != this.GetType())
{
return false;
}
if (!(o is Int64FieldSource other))
return false;
return base.Equals(other) && (this.m_parser is null ? other.m_parser is null : this.m_parser.GetType() == other.m_parser.GetType());
}
public override int GetHashCode()
{
int h = m_parser is null ? this.GetType().GetHashCode() : m_parser.GetType().GetHashCode();
h += base.GetHashCode();
return h;
}
}
}