| using Lucene.Net.Index; |
| using Lucene.Net.Util.Mutable; |
| using System; |
| using System.Globalization; |
| |
| namespace Lucene.Net.Queries.Function.DocValues |
| { |
| /* |
| * 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> |
| /// Abstract <see cref="FunctionValues"/> implementation which supports retrieving <see cref="long"/> values. |
| /// Implementations can control how the <see cref="long"/> values are loaded through <see cref="Int64Val(int)"/> |
| /// <para/> |
| /// NOTE: This was LongDocValues in Lucene |
| /// </summary> |
| public abstract class Int64DocValues : FunctionValues |
| { |
| protected readonly ValueSource m_vs; |
| |
| protected Int64DocValues(ValueSource vs) // LUCENENET: CA1012: Abstract types should not have constructors (marked protected) |
| { |
| this.m_vs = vs; |
| } |
| |
| public override byte ByteVal(int doc) |
| { |
| return (byte)Int64Val(doc); |
| } |
| |
| /// <summary> |
| /// NOTE: This was shortVal() in Lucene |
| /// </summary> |
| public override short Int16Val(int doc) |
| { |
| return (short)Int64Val(doc); |
| } |
| |
| /// <summary> |
| /// NOTE: This was floatVal() in Lucene |
| /// </summary> |
| public override float SingleVal(int doc) |
| { |
| return (float)Int64Val(doc); |
| } |
| |
| /// <summary> |
| /// NOTE: This was intVal() in Lucene |
| /// </summary> |
| public override int Int32Val(int doc) |
| { |
| return (int)Int64Val(doc); |
| } |
| |
| public override abstract long Int64Val(int doc); |
| |
| public override double DoubleVal(int doc) |
| { |
| return (double)Int64Val(doc); |
| } |
| |
| public override bool BoolVal(int doc) |
| { |
| return Int64Val(doc) != 0; |
| } |
| |
| public override string StrVal(int doc) |
| { |
| return Int64Val(doc).ToString(CultureInfo.InvariantCulture); |
| } |
| |
| public override object ObjectVal(int doc) |
| { |
| return Exists(doc) ? Int64Val(doc) : (long?)null; |
| } |
| |
| public override string ToString(int doc) |
| { |
| return m_vs.GetDescription() + '=' + StrVal(doc); |
| } |
| |
| /// <summary> |
| /// NOTE: This was externalToLong() in Lucene |
| /// </summary> |
| protected virtual long ExternalToInt64(string extVal) |
| { |
| return Convert.ToInt64(extVal, CultureInfo.InvariantCulture); |
| } |
| |
| public override ValueSourceScorer GetRangeScorer(IndexReader reader, string lowerVal, string upperVal, bool includeLower, bool includeUpper) |
| { |
| long lower, upper; |
| |
| // instead of using separate comparison functions, adjust the endpoints. |
| |
| if (lowerVal == null) |
| { |
| lower = long.MinValue; |
| } |
| else |
| { |
| lower = ExternalToInt64(lowerVal); |
| if (!includeLower && lower < long.MaxValue) |
| { |
| lower++; |
| } |
| } |
| |
| if (upperVal == null) |
| { |
| upper = long.MaxValue; |
| } |
| else |
| { |
| upper = ExternalToInt64(upperVal); |
| if (!includeUpper && upper > long.MinValue) |
| { |
| upper--; |
| } |
| } |
| |
| long ll = lower; |
| long uu = upper; |
| |
| return new ValueSourceScorer.AnonymousValueSourceScorer(reader, this, matchesValue: (doc) => |
| { |
| long val = Int64Val(doc); |
| // only check for deleted if it's the default value |
| // if (val==0 && reader.isDeleted(doc)) return false; |
| return val >= ll && val <= uu; |
| }); |
| } |
| |
| public override ValueFiller GetValueFiller() |
| { |
| return new ValueFiller.AnonymousValueFiller<MutableValueInt64>(new MutableValueInt64(), fillValue: (doc, mutableValue) => |
| { |
| mutableValue.Value = Int64Val(doc); |
| mutableValue.Exists = Exists(doc); |
| }); |
| } |
| } |
| } |