Instantly share code, notes, and snippets.

Embed
What would you like to do?
private static void Main()
{
var defaultIndex = "icecreams";
var settings = new ConnectionSettings(new Uri("http://localhost:9200"))
.DefaultIndex(defaultIndex)
.DisableDirectStreaming()
.PrettyJson()
.OnRequestCompleted(callDetails =>
{
if (callDetails.RequestBodyInBytes != null)
{
Console.WriteLine(
$"{callDetails.HttpMethod} {callDetails.Uri} \n" +
$"{Encoding.UTF8.GetString(callDetails.RequestBodyInBytes)}");
}
else
{
Console.WriteLine($"{callDetails.HttpMethod} {callDetails.Uri}");
}
Console.WriteLine();
if (callDetails.ResponseBodyInBytes != null)
{
Console.WriteLine($"Status: {callDetails.HttpStatusCode}\n" +
$"{Encoding.UTF8.GetString(callDetails.ResponseBodyInBytes)}\n" +
$"{new string('-', 30)}\n");
}
else
{
Console.WriteLine($"Status: {callDetails.HttpStatusCode}\n" +
$"{new string('-', 30)}\n");
}
});
var client = new ElasticClient(settings);
if (client.IndexExists(defaultIndex).Exists)
client.DeleteIndex(defaultIndex);
client.CreateIndex(defaultIndex, c => c
.Settings(s => s
.NumberOfShards(1)
.NumberOfReplicas(0)
.Analysis(a => a
.Analyzers(an => an
.Custom("exact_icecream", ca => ca
.CharFilters("convert_ampersand", "remove_apostrophes")
.Tokenizer("keyword")
.Filters("lowercase", "jerrys")
)
.Custom("standard_icecream", ca => ca
.CharFilters("remove_apostrophes")
.Tokenizer("standard")
.Filters("standard", "lowercase", "jerrys", "choc")
)
)
.CharFilters(cf => cf
.Mapping("convert_ampersand", mf => mf
.Mappings("& => and")
)
.Mapping("remove_apostrophes", mf => mf
.Mappings(
"\\u0091=>",
"\\u0092=>",
"\\u2018=>",
"\\u2019=>",
"\\u201B=>",
"\\u0027=>"
)
)
)
.TokenFilters(tf => tf
.PatternReplace("jerrys", pr => pr
.Pattern(@"(\b?)jerries(\b?)")
.Replacement(@"$1jerrys$2")
)
.Synonym("choc", sf => sf
.Synonyms(
"choc, chocolate"
)
)
)
)
)
.Mappings(m => m
.Map<IceCream>(mm => mm
.AutoMap()
.Properties(p => p
.Text(t => t
.Name(n => n.Description)
.Norms(false)
.Analyzer("standard_icecream")
.Fields(f => f
.Text(tt => tt
.Name("exact")
.Analyzer("exact_icecream")
.Norms(false)
)
)
)
)
)
)
);
var icecreams = new[] {
new IceCream { Description = "Double Choc", IsGeneric = true, Price = 9.99 },
new IceCream { Description = "Ben & Jerries Double Choc", IsGeneric = false, Price = 9.99 },
new IceCream { Description = "Fairy Farms Double Choc", IsGeneric = false, Price = 9.99 },
new IceCream { Description = "Dan's Double Chocolate", IsGeneric = false, Price = 9.99 },
};
client.Bulk(b => b.IndexMany(icecreams).Refresh(Refresh.WaitFor));
var doubleChocQuery = "Double Choc";
var benAndJerrysQuery = "Ben & Jerries Double Choc";
client.Analyze(a => a
.Index(defaultIndex)
.Field<IceCream>(f => f.Description)
.Text(doubleChocQuery)
);
client.Analyze(a => a
.Index(defaultIndex)
.Field<IceCream>(f => f.Description)
.Text(benAndJerrysQuery)
);
client.Analyze(a => a
.Index(defaultIndex)
.Field<IceCream>(f => f.Description.Suffix("exact"))
.Text(doubleChocQuery)
);
client.Analyze(a => a
.Index(defaultIndex)
.Field<IceCream>(f => f.Description.Suffix("exact"))
.Text(benAndJerrysQuery)
);
var variations = new[]
{
"Ben & Jerry's Double Choc",
"Ben and Jerry's Double Choc",
"BEN AND JERRYS DOUBLE CHOC",
"Ben and Jerries Double Choc",
"Ben & Jerries Double Choc",
};
foreach (var variation in variations)
{
client.Analyze(a => a
.Index(defaultIndex)
.Field<IceCream>(f => f.Description.Suffix("exact"))
.Text(variation)
);
}
var random = new Random();
client.Search<IceCream>(s => s
.Query(q => q
.FunctionScore(fs => fs
.Query(fsq => fsq
.Bool(b => b
.Must(m => m
.Match(mp => mp
.Field(f => f.Description.Suffix("exact"))
.Query(doubleChocQuery)
.Boost(5)
) || m
.Match(ma => ma
.Field(f => f.Description)
.Query(doubleChocQuery)
)
)
.Should(ss => ss
.Term(t => t.IsGeneric, true, 1.02)
)
)
)
.Functions(fu => fu
.RandomScore(rs => rs
.Seed(random.Next())
)
)
.ScoreMode(FunctionScoreMode.Sum)
)
)
);
client.Search<IceCream>(s => s
.Query(q => q
.FunctionScore(fs => fs
.Query(fsq => fsq
.Bool(b => b
.Must(m => m
.Match(mp => mp
.Field(f => f.Description.Suffix("exact"))
.Query(benAndJerrysQuery)
.Boost(5)
) || m
.Match(ma => ma
.Field(f => f.Description)
.Query(benAndJerrysQuery)
)
)
)
)
.Functions(fu => fu
.RandomScore(rs => rs
.Seed(random.Next())
)
)
.ScoreMode(FunctionScoreMode.Sum)
)
)
);
client.Search<IceCream>(s => s
.Query(q => q
.FunctionScore(fs => fs
.Query(fsq => fsq
.Bool(b => b
.Must(m => m
.Match(mp => mp
.Field(f => f.Description.Suffix("exact"))
.Query(benAndJerrysQuery)
.Boost(5)
) || m
.Match(ma => ma
.Field(f => f.Description)
.Query(benAndJerrysQuery)
)
)
.Should(ss => ss
.Term(t => t.IsGeneric, true)
)
)
)
.Functions(fu => fu
.RandomScore(rs => rs
.Seed(random.Next())
)
)
.ScoreMode(FunctionScoreMode.Sum)
)
)
);
}
public class IceCream
{
public string Description { get; set; }
public bool IsGeneric { get; set; }
public double Price { get; set; }
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment