如何使用自定义分析器创建 ElasticSearch NEST v.5 客户端的索引？

Question

使用 NEST v.5 创建索引的正确方法是什么？我在这里看到了类似的 post：Specifying and using a NGramTokenizer with the C# NEST client for Elastic Search。不过好像改了API。我可以通过以下方式进行：

ConnectionSettings settings = new ConnectionSettings(new Uri("http://localhost:9200"));

IndexSettings indexSettings = new IndexSettings();
            CustomAnalyzer customAnalyzer = new CustomAnalyzer();

customAnalyzer.Tokenizer = "mynGram";
            customAnalyzer.Filter = new List<string> { "lowercase" };

            indexSettings.Analysis.Analyzers.Add("mynGram", customAnalyzer);
            indexSettings.Analysis.Tokenizers.Add("mynGram", 
                                                  new NGramTokenizer
                                                  {
                                                      MaxGram = 10,
                                                      MinGram = 2
                                                  });

elasticClient = new ElasticClient(settings);

            elasticClient.CreateIndex("taskmanager", s => s
                .Settings(sett => sett
                    .Analysis(a => a
                        .Analyzers(anl => anl
                            .Custom("customAnalyzer", c => c
                                // how to set my custom analyzer?
                                .Tokenizer("mynGram")

                            )
                        )
                    )
                )
            );

问题是我不知道如何使用 fluent 来设置我的设置 API。

Answer 1

我在博客上找到了答案：ELASTIC SEARCH : CREATE INDEX USING NEST IN .NET

首先我需要创建索引设置和自定义分析器：

IndexSettings indexSettings = new IndexSettings();
CustomAnalyzer customAnalyzer = new CustomAnalyzer();

然后我们需要将分词器和过滤器设置为自定义分析器。

customAnalyzer.Tokenizer = "mynGram";
            customAnalyzer.Filter = new List<string> { "lowercase" };

            indexSettings.Analysis.Analyzers.Add("mynGram", customAnalyzer);
            indexSettings.Analysis.Tokenizers.Add("mynGram",
                                                  new NGramTokenizer
                                                  {
                                                      MaxGram = 10,
                                                      MinGram = 2
                                                  });

我的错误是我没有使用包含我们设置的 IndexState。

IndexState indexConfig = new IndexState
{
   Settings = indexSettings
};

elasticClient.CreateIndex("mycustomname", i => i .InitializeUsing(indexConfig) );

如何使用自定义分析器创建 ElasticSearch NEST v.5 客户端的索引？

How to create index of ElasticSearch NEST v.5 client by using custom analyzer?

c#

elasticsearch

nest