| using System; |
| using System.Collections.Generic; |
| using Lucene.Net.Analysis.Util; |
| |
| namespace Lucene.Net.Analysis.Payloads |
| { |
| /* |
| * 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> |
| /// Factory for <see cref="DelimitedPayloadTokenFilter"/>. |
| /// <code> |
| /// <fieldType name="text_dlmtd" class="solr.TextField" positionIncrementGap="100"> |
| /// <analyzer> |
| /// <tokenizer class="solr.WhitespaceTokenizerFactory"/> |
| /// <filter class="solr.DelimitedPayloadTokenFilterFactory" encoder="float" delimiter="|"/> |
| /// </analyzer> |
| /// </fieldType></code> |
| /// </summary> |
| public class DelimitedPayloadTokenFilterFactory : TokenFilterFactory, IResourceLoaderAware |
| { |
| public const string ENCODER_ATTR = "encoder"; |
| public const string DELIMITER_ATTR = "delimiter"; |
| |
| private readonly string encoderClass; |
| private readonly char delimiter; |
| |
| private IPayloadEncoder encoder; |
| |
| /// <summary> |
| /// Creates a new <see cref="DelimitedPayloadTokenFilterFactory"/> </summary> |
| public DelimitedPayloadTokenFilterFactory(IDictionary<string, string> args) |
| : base(args) |
| { |
| encoderClass = Require(args, ENCODER_ATTR); |
| delimiter = GetChar(args, DELIMITER_ATTR, '|'); |
| if (args.Count > 0) |
| { |
| throw new ArgumentException(string.Format(J2N.Text.StringFormatter.CurrentCulture, "Unknown parameters: {0}", args)); |
| } |
| } |
| |
| public override TokenStream Create(TokenStream input) |
| { |
| return new DelimitedPayloadTokenFilter(input, delimiter, encoder); |
| } |
| |
| public virtual void Inform(IResourceLoader loader) |
| { |
| if (encoderClass.Equals("float", StringComparison.Ordinal)) |
| { |
| encoder = new SingleEncoder(); |
| } |
| else if (encoderClass.Equals("integer", StringComparison.Ordinal)) |
| { |
| encoder = new IntegerEncoder(); |
| } |
| else if (encoderClass.Equals("identity", StringComparison.Ordinal)) |
| { |
| encoder = new IdentityEncoder(); |
| } |
| else |
| { |
| encoder = loader.NewInstance<IPayloadEncoder>(encoderClass /*, typeof(PayloadEncoder)*/); |
| } |
| } |
| } |
| } |