| using Lucene.Net.Documents; |
| using Lucene.Net.QueryParsers.Flexible.Core; |
| using Lucene.Net.QueryParsers.Flexible.Core.Config; |
| using Lucene.Net.QueryParsers.Flexible.Core.Messages; |
| using Lucene.Net.QueryParsers.Flexible.Core.Nodes; |
| using Lucene.Net.QueryParsers.Flexible.Core.Processors; |
| using Lucene.Net.QueryParsers.Flexible.Messages; |
| using Lucene.Net.QueryParsers.Flexible.Standard.Config; |
| using Lucene.Net.QueryParsers.Flexible.Standard.Nodes; |
| using Lucene.Net.Util; |
| using System; |
| using System.Collections.Generic; |
| |
| namespace Lucene.Net.QueryParsers.Flexible.Standard.Processors |
| { |
| /* |
| * 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> |
| /// This processor is used to convert <see cref="FieldQueryNode"/>s to |
| /// <see cref="NumericRangeQueryNode"/>s. It looks for |
| /// <see cref="ConfigurationKeys.NUMERIC_CONFIG"/> set in the <see cref="FieldConfig"/> of |
| /// every <see cref="FieldQueryNode"/> found. If |
| /// <see cref="ConfigurationKeys.NUMERIC_CONFIG"/> is found, it considers that |
| /// <see cref="FieldQueryNode"/> to be a numeric query and convert it to |
| /// <see cref="NumericRangeQueryNode"/> with upper and lower inclusive and lower and |
| /// upper equals to the value represented by the <see cref="FieldQueryNode"/> converted |
| /// to <see cref="object"/> representing a .NET numeric type. It means that <b>field:1</b> is converted to <b>field:[1 |
| /// TO 1]</b>. |
| /// <para/> |
| /// Note that <see cref="FieldQueryNode"/>s children of a |
| /// <see cref="IRangeQueryNode"/> are ignored. |
| /// </summary> |
| /// <seealso cref="ConfigurationKeys.NUMERIC_CONFIG"/> |
| /// <seealso cref="FieldQueryNode"/> |
| /// <seealso cref="NumericConfig"/> |
| /// <seealso cref="NumericQueryNode"/> |
| public class NumericQueryNodeProcessor : QueryNodeProcessor |
| { |
| /// <summary> |
| /// Constructs a <see cref="NumericQueryNodeProcessor"/> object. |
| /// </summary> |
| public NumericQueryNodeProcessor() |
| { |
| // empty constructor |
| } |
| |
| protected override IQueryNode PostProcessNode(IQueryNode node) |
| { |
| if (node is FieldQueryNode fieldNode |
| && !(node.Parent is IRangeQueryNode)) |
| { |
| QueryConfigHandler config = GetQueryConfigHandler(); |
| |
| if (config != null) |
| { |
| FieldConfig fieldConfig = config.GetFieldConfig(fieldNode |
| .GetFieldAsString()); |
| |
| if (fieldConfig != null) |
| { |
| NumericConfig numericConfig = fieldConfig |
| .Get(ConfigurationKeys.NUMERIC_CONFIG); |
| |
| if (numericConfig != null) |
| { |
| NumberFormat numberFormat = numericConfig.NumberFormat; |
| string text = fieldNode.GetTextAsString(); |
| /*Number*/ |
| object number; // LUCENENET: IDE0059: Remove unnecessary value assignment |
| |
| if (text.Length > 0) |
| { |
| try |
| { |
| number = numberFormat.Parse(text); |
| } |
| catch (FormatException e) |
| { |
| throw new QueryNodeParseException(new Message( |
| QueryParserMessages.COULD_NOT_PARSE_NUMBER, fieldNode |
| .GetTextAsString(), numberFormat.GetType() |
| .AssemblyQualifiedName), e); |
| } |
| |
| switch (numericConfig.Type) |
| { |
| case NumericType.INT64: |
| number = Convert.ToInt64(number); // LUCENENET TODO: Find a way to pass culture |
| break; |
| case NumericType.INT32: |
| number = Convert.ToInt32(number); // LUCENENET TODO: Find a way to pass culture |
| break; |
| case NumericType.DOUBLE: |
| number = Convert.ToDouble(number); // LUCENENET TODO: Find a way to pass culture |
| break; |
| case NumericType.SINGLE: |
| number = Convert.ToSingle(number); // LUCENENET TODO: Find a way to pass culture |
| break; |
| } |
| |
| } |
| else |
| { |
| throw new QueryNodeParseException(new Message( |
| QueryParserMessages.NUMERIC_CANNOT_BE_EMPTY, fieldNode.GetFieldAsString())); |
| } |
| |
| NumericQueryNode lowerNode = new NumericQueryNode(fieldNode |
| .Field, number, numberFormat); |
| NumericQueryNode upperNode = new NumericQueryNode(fieldNode |
| .Field, number, numberFormat); |
| |
| return new NumericRangeQueryNode(lowerNode, upperNode, true, true, |
| numericConfig); |
| } |
| } |
| } |
| } |
| |
| return node; |
| } |
| |
| protected override IQueryNode PreProcessNode(IQueryNode node) |
| { |
| return node; |
| } |
| |
| protected override IList<IQueryNode> SetChildrenOrder(IList<IQueryNode> children) |
| { |
| return children; |
| } |
| } |
| } |