| // Lucene version compatibility level 4.8.1 |
| 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 val; |
| } |
| |
| /// <summary> |
| /// NOTE: This was longToString() in Lucene |
| /// </summary> |
| public virtual string Int64ToString(long val) |
| { |
| return string.Format(CultureInfo.InvariantCulture, "{0}", Int64ToObject(val)); |
| } |
| |
| 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 == null ? other.m_parser == null : this.m_parser.GetType() == other.m_parser.GetType()); |
| } |
| |
| public override int GetHashCode() |
| { |
| int h = m_parser == null ? this.GetType().GetHashCode() : m_parser.GetType().GetHashCode(); |
| h += base.GetHashCode(); |
| return h; |
| } |
| } |
| } |