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feat: Added Elasticsearch database template. (#352)
* feat: Added Elasticsearch database. * fix: Disabled.
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106 changes: 106 additions & 0 deletions
106
src/Databases/Elasticsearch/src/ElasticsearchVectorCollection.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| using Elastic.Clients.Elasticsearch; | ||
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| namespace LangChain.Databases.Elasticsearch; | ||
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| /// <summary> | ||
| /// Elasticsearch vector collection. | ||
| /// </summary> | ||
| public class ElasticsearchVectorCollection( | ||
| ElasticsearchClient client, | ||
| string name = VectorCollection.DefaultName, | ||
| string? id = null) | ||
| : VectorCollection(name, id), IVectorCollection | ||
| { | ||
| /// <inheritdoc /> | ||
| public async Task<Vector?> GetAsync(string id, CancellationToken cancellationToken = default) | ||
| { | ||
| throw new NotImplementedException(); | ||
| // var record = await client.GetAsync(Name, new Id(id), cancellationToken: cancellationToken).ConfigureAwait(false); | ||
| // if (record == null) | ||
| // { | ||
| // return null; | ||
| // } | ||
| // | ||
| // return new Vector | ||
| // { | ||
| // Text = string.Empty, | ||
| // Metadata = new Dictionary<string, object>(), | ||
| // }; | ||
| } | ||
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| /// <inheritdoc /> | ||
| public async Task<bool> DeleteAsync( | ||
| IEnumerable<string> ids, | ||
| CancellationToken cancellationToken = default) | ||
| { | ||
| ids = ids ?? throw new ArgumentNullException(nameof(ids)); | ||
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| throw new NotImplementedException(); | ||
| // foreach (var id in ids) | ||
| // { | ||
| // await client.DeleteAsync(Name, new Id(id), cancellationToken).ConfigureAwait(false); | ||
| // } | ||
| // | ||
| // return true; | ||
| } | ||
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| /// <inheritdoc /> | ||
| public async Task<IReadOnlyCollection<string>> AddAsync( | ||
| IReadOnlyCollection<Vector> items, | ||
| CancellationToken cancellationToken = default) | ||
| { | ||
| items = items ?? throw new ArgumentNullException(nameof(items)); | ||
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| throw new NotImplementedException(); | ||
| //return Task.FromResult<IReadOnlyCollection<string>>([]); | ||
| } | ||
|
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| /// <inheritdoc /> | ||
| public async Task<VectorSearchResponse> SearchAsync( | ||
| VectorSearchRequest request, | ||
| VectorSearchSettings? settings = default, | ||
| CancellationToken cancellationToken = default) | ||
| { | ||
| request = request ?? throw new ArgumentNullException(nameof(request)); | ||
| settings ??= new VectorSearchSettings(); | ||
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| throw new NotImplementedException(); | ||
| // var response = await client.SearchAsync<MyDoc>(s => s | ||
| // .Index("my_index") | ||
| // .From(0) | ||
| // .Size(10) | ||
| // .Query(q => q | ||
| // .Knn() | ||
| // .Term(t => t.User, "flobernd") | ||
| // ) | ||
| // ); | ||
| // | ||
| // if (response.IsValidResponse) | ||
| // { | ||
| // var doc = response.Documents.FirstOrDefault(); | ||
| // } | ||
| // | ||
| // return Task.FromResult(new VectorSearchResponse | ||
| // { | ||
| // Items = Array.Empty<string>() | ||
| // .Select(record => | ||
| // { | ||
| // return new Vector | ||
| // { | ||
| // Id = string.Empty, | ||
| // Text = string.Empty, | ||
| // Metadata = new Dictionary<string, object>(), | ||
| // Embedding = [], | ||
| // Distance = 0.0F, | ||
| // }; | ||
| // }) | ||
| // .ToArray(), | ||
| // }); | ||
| } | ||
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| /// <inheritdoc /> | ||
| public Task<bool> IsEmptyAsync(CancellationToken cancellationToken = default) | ||
| { | ||
| throw new NotImplementedException(); | ||
| } | ||
| } |
78 changes: 78 additions & 0 deletions
78
src/Databases/Elasticsearch/src/ElasticsearchVectorDatabase.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| using Elastic.Clients.Elasticsearch; | ||
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| namespace LangChain.Databases.Elasticsearch; | ||
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| /// <summary> | ||
| /// Elasticsearch vector store. | ||
| /// </summary> | ||
| public class ElasticsearchVectorDatabase( | ||
| ElasticsearchClient client) | ||
| : IVectorDatabase | ||
| { | ||
| /// <inheritdoc /> | ||
| public async Task<IVectorCollection> GetCollectionAsync(string collectionName, CancellationToken cancellationToken = default) | ||
| { | ||
| throw new NotImplementedException(); | ||
| // try | ||
| // { | ||
| // // var collection = await client.GetCollectionAsync(collectionName, cancellationToken).ConfigureAwait(false) ?? throw new InvalidOperationException("Collection not found"); | ||
| // // | ||
| // // return new ElasticsearchVectorCollection( | ||
| // // client, | ||
| // // name: collection.Name, | ||
| // // id: collection.Id); | ||
| // } | ||
| // catch (Exception exception) | ||
| // { | ||
| // throw new InvalidOperationException("Collection not found", innerException: exception); | ||
| // } | ||
| } | ||
|
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| /// <inheritdoc /> | ||
| public async Task<bool> IsCollectionExistsAsync(string collectionName, CancellationToken cancellationToken = default) | ||
| { | ||
| throw new NotImplementedException(); | ||
| // await foreach (var name in client.ListCollectionsAsync(cancellationToken).ConfigureAwait(false)) | ||
| // { | ||
| // if (name == collectionName) | ||
| // { | ||
| // return true; | ||
| // } | ||
| // } | ||
| // | ||
| // return false; | ||
| } | ||
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| /// <inheritdoc /> | ||
| public async Task CreateCollectionAsync(string collectionName, int dimensions, CancellationToken cancellationToken = default) | ||
| { | ||
| throw new NotImplementedException(); | ||
| //await client.CreateCollectionAsync(collectionName, cancellationToken).ConfigureAwait(false); | ||
| } | ||
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| /// <inheritdoc /> | ||
| public async Task<IReadOnlyList<string>> ListCollectionsAsync(CancellationToken cancellationToken = default) | ||
| { | ||
| throw new NotImplementedException(); | ||
| //return await client.ListCollectionsAsync(cancellationToken).ToListAsync(cancellationToken: cancellationToken).ConfigureAwait(false); | ||
| } | ||
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| /// <inheritdoc /> | ||
| public async Task<IVectorCollection> GetOrCreateCollectionAsync(string collectionName, int dimensions, CancellationToken cancellationToken = default) | ||
| { | ||
| throw new NotImplementedException(); | ||
| // if (!await IsCollectionExistsAsync(collectionName, cancellationToken).ConfigureAwait(false)) | ||
| // { | ||
| // await client.CreateCollectionAsync(collectionName, cancellationToken).ConfigureAwait(false); | ||
| // } | ||
| // | ||
| // return await GetCollectionAsync(collectionName, cancellationToken).ConfigureAwait(false); | ||
| } | ||
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| /// <inheritdoc /> | ||
| public async Task DeleteCollectionAsync(string collectionName, CancellationToken cancellationToken = default) | ||
| { | ||
| throw new NotImplementedException(); | ||
| //await client.DeleteCollectionAsync(collectionName, cancellationToken).ConfigureAwait(false); | ||
| } | ||
| } |
21 changes: 21 additions & 0 deletions
21
src/Databases/Elasticsearch/src/LangChain.Databases.Elasticsearch.csproj
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| @@ -0,0 +1,21 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <TargetFrameworks>net4.6.2;netstandard2.0;net6.0;net8.0</TargetFrameworks> | ||
| <NoWarn>$(NoWarn);CS9113;CS1998</NoWarn> | ||
| </PropertyGroup> | ||
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| <PropertyGroup Label="NuGet"> | ||
| <Description>Elasticsearch support for LangChain.</Description> | ||
| <PackageTags>$(PackageTags);elasticsearch</PackageTags> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <PackageReference Include="Elastic.Clients.Elasticsearch" /> | ||
| </ItemGroup> | ||
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\Abstractions\src\LangChain.Databases.Abstractions.csproj" /> | ||
| </ItemGroup> | ||
|
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| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
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@@ -10,5 +10,6 @@ public enum SupportedDatabase | |
| Postgres, | ||
| Redis, | ||
| Mongo, | ||
| Elasticsearch, | ||
| DuckDb | ||
| } | ||
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