public static IPromise <IIndexSettings> AnalysisSettings(IndexSettingsDescriptor settings) => settings
.Analysis(analysis => analysis
.TokenFilters(filters => filters
.Stop("stop", stop => stop.StopWords("_english_", "_russian_"))
.Stemmer("english_stemmer", stemmer => stemmer.Language("english"))
.Stemmer("english_possessive_stemmer", stemmer => stemmer.Language("possessive_english"))
.Stemmer("russian_stemmer", stemmer => stemmer.Language("russian"))
)
.Analyzers(analyzers => analyzers
.Custom("english_russian", analyzer => analyzer
.Tokenizer("standard")
.Filters("lowercase", "stop", "english_stemmer", "english_possessive_stemmer", "russian_stemmer")
)
)
);
private static IndexSettingsDescriptor GetIndexSettings()
{
#region TokenFilters
//We add the danish stop word and stemmer filters.
var tokenFilters = new Dictionary <string, ITokenFilter>
{
{
"english_stop",
new StopTokenFilter
{
StopWords = "_english_"
}
},
{
"english_snow",
new SnowballTokenFilter()
{
Language = SnowballLanguage.English
}
},
};
#endregion
#region Analyzers
//We create a custom analyzer to use in the index
var analyzers = new Dictionary <string, IAnalyzer>
{
{
"english",
new CustomAnalyzer
{
CharFilter = new[] { "html_strip" },
Filter = new [] { "lowercase", "english_stop", "english_snow", "asciifolding" },
Tokenizer = "standard"
}
},
{
"default",
new CustomAnalyzer
{
CharFilter = new[] { "html_strip" },
Filter = new[] { "lowercase", "asciifolding" },
Tokenizer = "standard"
}
}
};
#endregion
var indexSettings = new IndexSettingsDescriptor();
indexSettings.NumberOfShards(1);
indexSettings.NumberOfReplicas(0);
indexSettings.Analysis(d => new Analysis
{
TokenFilters = new TokenFilters(tokenFilters),
Analyzers = new Analyzers(analyzers)
});
return(indexSettings);
}
private IPromise <IndexSettings> GetSetting(IndexSettingsDescriptor setting) =>
setting.Analysis(a => a
.Analyzers(azs => azs.Custom(NameAnalyzer, c => c.Tokenizer(NameTokenizer).Filters("lowercase")))
.Tokenizers(t => t.EdgeNGram(NameTokenizer, ng => ng.MinGram(3).MaxGram(20).TokenChars(new[] { TokenChar.Letter }))));
public IPromise <IIndexSettings> ConfigureIndexSettings(IndexSettingsDescriptor indexSettingsDescriptor)
{
return(indexSettingsDescriptor.Analysis(an => an
.CreateRemoveNumbersCharFilters()
.CreateRemoveNumbersNormalizer()));
}
