DynamicIndexingTests.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Raven.Client.Documents.Indexes;
using Raven.TestDriver;

namespace Area52.RavenDbTests;

public class DynamicIndexingTests : RavenTestDriver
{
    [Fact]
    public void DynamicIndexingTest()
    {
        using var store = this.GetDocumentStore();

        store.ExecuteIndex(new LogEntityIndex());

        using (var session = store.OpenSession())
        {
            session.Store(new LogEntity() { Name = "Spaces", Level = "Debug", Properties = new[] { new LogEntityProperty("Application", "Area52 Foo Bar"), new LogEntityProperty("Foo", "Bar1"), new LogEntityProperty("count", "45") } });
            session.Store(new LogEntity() { Name = "Dots", Level = "Info", Properties = new[] { new LogEntityProperty("Application", "Area52.Foo.Bar"), new LogEntityProperty("Foo", "Bar2"), new LogEntityProperty("RequestId", "AN4589kiua") } });
            session.Store(new LogEntity() { Name = "DoubleDots", Level = "Info", Properties = new[] { new LogEntityProperty("Application", "Area52:Foo:Bar"), new LogEntityProperty("Foo", "Bar3") } });
            session.Store(new LogEntity() { Name = "Join", Level = "Debug", Properties = new[] { new LogEntityProperty("Application", "Area52FooBar"), new LogEntityProperty("Foo", "Bar3") } });

            session.Store(new LogEntity() { Name = "Another application", Level = "Info", Properties = new[] { new LogEntityProperty("Application", "Another"), new LogEntityProperty("Foo", "Bar3") } });
            session.SaveChanges();
        }

        this.WaitForIndexing(store);

        using (var session = store.OpenSession())
        {
            var exactResult = session.Advanced.RawQuery<LogEntity>("from index 'LogEntityIndex' where exact(Application = 'Area52.Foo.Bar')").ToList();
            Assert.Equal(1, exactResult.Count);

            var startsWithResult = session.Advanced.RawQuery<LogEntity>("from index 'LogEntityIndex' where startsWith(Application, 'Area52')").ToList();
            Assert.Equal(3, startsWithResult.Count);
        }
    }
}

public class LogEntityIndex : AbstractIndexCreationTask<LogEntity>
{
    public LogEntityIndex()
    {
        this.Map = docs => from doc in docs
                           select new
                           {
                               Name = doc.Name,
                               _ = doc.Properties.Select(t => this.CreateField(t.Name, t.Value, new CreateFieldOptions()
                               {
                                   Indexing = FieldIndexing.Exact,
                                   Storage = FieldStorage.No,
                                   TermVector = FieldTermVector.No
                               }))
                           };
    }
}

public class LogEntity
{
    public string Level
    {
        get;
        set;
    }

    public string Name
    {
        get;
        set;
    }

    public LogEntityProperty[] Properties
    {
        get;
        set;
    }
}

public class LogEntityProperty
{

    public string Name
    {
        get;
        set;
    }

    public string Value
    {
        get;
        set;
    }

    public LogEntityProperty()
    {

    }

    public LogEntityProperty(string name, string value)
    {
        this.Name = name;
        this.Value = value;
    }
}