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ShortFieldSource.cs
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ShortFieldSource.cs
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// Lucene version compatibility level 4.8.1
using Lucene.Net.Index;
using Lucene.Net.Search;
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="short"/> field values from the <see cref="FieldCache"/>
/// using <see cref="IFieldCache.GetInt16s(AtomicReader, string, FieldCache.IInt16Parser, bool)"/>
/// and makes those values available as other numeric types, casting as needed.
/// <para/>
/// NOTE: This was ShortFieldSource in Lucene
/// </summary>
[Obsolete]
public class Int16FieldSource : FieldCacheSource
{
private readonly FieldCache.IInt16Parser parser;
public Int16FieldSource(string field)
: this(field, null)
{
}
public Int16FieldSource(string field, FieldCache.IInt16Parser parser)
: base(field)
{
this.parser = parser;
}
public override string GetDescription()
{
return "short(" + m_field + ')';
}
public override FunctionValues GetValues(IDictionary context, AtomicReaderContext readerContext)
{
var arr = m_cache.GetInt16s(readerContext.AtomicReader, m_field, parser, false);
return new FunctionValuesAnonymousClass(this, arr);
}
private class FunctionValuesAnonymousClass : FunctionValues
{
private readonly Int16FieldSource outerInstance;
private readonly FieldCache.Int16s arr;
public FunctionValuesAnonymousClass(Int16FieldSource outerInstance, FieldCache.Int16s arr)
{
this.outerInstance = outerInstance;
this.arr = arr;
}
public override byte ByteVal(int doc)
{
return (byte)arr.Get(doc);
}
/// <summary>
/// NOTE: This was shortVal() in Lucene
/// </summary>
public override short Int16Val(int doc)
{
return arr.Get(doc);
}
/// <summary>
/// NOTE: This was floatVal() in Lucene
/// </summary>
public override float SingleVal(int doc)
{
return (float)arr.Get(doc);
}
/// <summary>
/// NOTE: This was intVal() in Lucene
/// </summary>
public override int Int32Val(int doc)
{
return (int)arr.Get(doc);
}
/// <summary>
/// NOTE: This was longVal() in Lucene
/// </summary>
public override long Int64Val(int doc)
{
return (long)arr.Get(doc);
}
public override double DoubleVal(int doc)
{
return arr.Get(doc);
}
public override string StrVal(int doc)
{
return Convert.ToString(arr.Get(doc), CultureInfo.InvariantCulture);
}
public override string ToString(int doc)
{
return outerInstance.GetDescription() + '=' + Int16Val(doc);
}
}
public override bool Equals(object o)
{
if (!(o is Int16FieldSource other))
return false;
return base.Equals(other)
&& (parser is null ? other.parser is null :
parser.GetType() == other.parser.GetType());
}
public override int GetHashCode()
{
var h = parser is null ? typeof(short).GetHashCode() : parser.GetType().GetHashCode();
h += base.GetHashCode();
return h;
}
}
}