changed to sqlite connection to ef core

This commit is contained in:
PaulKoudelka 2026-08-04 17:27:26 +02:00
parent 23416b21fc
commit 3d68d73767
8 changed files with 1222 additions and 503 deletions

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@ -50,12 +50,13 @@
<ItemGroup>
<PackageReference Include="CodeBeam.MudBlazor.Extensions" Version="8.3.0" />
<PackageReference Include="HtmlAgilityPack" Version="1.12.4" />
<PackageReference Include="Microsoft.Data.Sqlite.Core" Version="9.0.9" />
<PackageReference Include="Microsoft.Extensions.FileProviders.Embedded" Version="9.0.17" />
<PackageReference Include="Microsoft.Data.Sqlite.Core" Version="9.0.18" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.18" />
<PackageReference Include="Microsoft.Extensions.FileProviders.Embedded" Version="9.0.18" />
<PackageReference Include="MudBlazor" Version="8.15.0" />
<PackageReference Include="MudBlazor.Markdown" Version="8.11.0" />
<PackageReference Include="ReverseMarkdown" Version="5.0.0" />
<PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.1.10" />
<PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="3.0.5" />
<PackageReference Include="LuaCSharp" Version="0.5.5" />
</ItemGroup>

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using System.Globalization;
using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
namespace AIStudio.Tools.Databases.EmbeddingState;
internal sealed class EmbeddingStateDbContext(DbContextOptions<EmbeddingStateDbContext> options) : DbContext(options)
{
public static DbContextOptions<EmbeddingStateDbContext> CreateOptions(string databasePath) => new DbContextOptionsBuilder<EmbeddingStateDbContext>()
.UseSqlite(BuildConnectionString(databasePath))
.Options;
public DbSet<EmbeddingStateDataSourceEntity> DataSources => this.Set<EmbeddingStateDataSourceEntity>();
public DbSet<EmbeddingStateFileEntity> EmbeddedFiles => this.Set<EmbeddingStateFileEntity>();
public DbSet<EmbeddingStateChunkEntity> EmbeddingChunks => this.Set<EmbeddingStateChunkEntity>();
public DbSet<EmbeddingStateSearchResultEntity> SearchResults => this.Set<EmbeddingStateSearchResultEntity>();
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
var utcDateTimeConverter = new EmbeddingStateDateTimeConverter();
modelBuilder.Entity<EmbeddingStateDataSourceEntity>(entity =>
{
entity.ToTable("data_sources");
entity.HasKey(dataSource => dataSource.DataSourceId);
entity.Property(dataSource => dataSource.DataSourceId).HasColumnName("data_source_id");
entity.Property(dataSource => dataSource.DataSourceName).HasColumnName("data_source_name").IsRequired();
entity.Property(dataSource => dataSource.DataSourceType).HasColumnName("data_source_type").IsRequired();
entity.Property(dataSource => dataSource.EmbeddingProviderId).HasColumnName("embedding_provider_id").IsRequired();
entity.Property(dataSource => dataSource.EmbeddingSignature).HasColumnName("embedding_signature").IsRequired();
entity.Property(dataSource => dataSource.SourceHash).HasColumnName("source_hash").IsRequired().HasDefaultValue(string.Empty);
entity.Property(dataSource => dataSource.VectorSize).HasColumnName("vector_size").HasDefaultValue(0);
entity.Property(dataSource => dataSource.UpdatedAtUtc).HasColumnName("updated_at_utc").HasConversion(utcDateTimeConverter).IsRequired();
entity
.HasMany(dataSource => dataSource.Files)
.WithOne(file => file.DataSource)
.HasForeignKey(file => file.DataSourceId)
.OnDelete(DeleteBehavior.Cascade);
});
modelBuilder.Entity<EmbeddingStateFileEntity>(entity =>
{
entity.ToTable("embedded_files");
entity.HasKey(file => file.ParentFileId);
entity.Property(file => file.ParentFileId).HasColumnName("parent_file_id");
entity.Property(file => file.DataSourceId).HasColumnName("data_source_id").IsRequired();
entity.Property(file => file.AbsolutePath).HasColumnName("absolute_path").UseCollation("NOCASE").IsRequired();
entity.Property(file => file.FileName).HasColumnName("file_name").IsRequired();
entity.Property(file => file.RelativePath).HasColumnName("relative_path").IsRequired();
entity.Property(file => file.FileType).HasColumnName("file_type").IsRequired();
entity.Property(file => file.Fingerprint).HasColumnName("fingerprint").IsRequired();
entity.Property(file => file.FileSize).HasColumnName("file_size");
entity.Property(file => file.CreationUtc).HasColumnName("creation_utc").HasConversion(utcDateTimeConverter).IsRequired();
entity.Property(file => file.LastWriteUtc).HasColumnName("last_write_utc").HasConversion(utcDateTimeConverter).IsRequired();
entity.Property(file => file.EmbeddedAtUtc).HasColumnName("embedded_at_utc").HasConversion(utcDateTimeConverter).IsRequired();
entity.Property(file => file.ChunkCount).HasColumnName("chunk_count");
entity.Property(file => file.ComplianceLevel).HasColumnName("compliance_level").IsRequired();
entity.Property(file => file.ComplianceLevelRank).HasColumnName("compliance_level_rank");
entity.HasIndex(file => file.DataSourceId).HasDatabaseName("idx_embedded_files_data_source");
entity.HasIndex(file => file.AbsolutePath).HasDatabaseName("idx_embedded_files_absolute_path");
entity.HasIndex(file => file.FileType).HasDatabaseName("idx_embedded_files_file_type");
entity.HasIndex(file => file.ComplianceLevelRank).HasDatabaseName("idx_embedded_files_compliance");
entity.HasIndex(file => new { file.DataSourceId, file.AbsolutePath }).HasDatabaseName("idx_embedded_files_data_source_absolute_path").IsUnique();
entity
.HasMany(file => file.Chunks)
.WithOne(chunk => chunk.File)
.HasForeignKey(chunk => chunk.ParentFileId)
.OnDelete(DeleteBehavior.Cascade);
});
modelBuilder.Entity<EmbeddingStateChunkEntity>(entity =>
{
entity.ToTable("embedding_chunks");
entity.HasKey(chunk => chunk.Id);
entity.Property(chunk => chunk.Id).HasColumnName("id").ValueGeneratedOnAdd();
entity.Property(chunk => chunk.ChunkId).HasColumnName("chunk_id").IsRequired();
entity.Property(chunk => chunk.ParentFileId).HasColumnName("parent_file_id").IsRequired();
entity.Property(chunk => chunk.PageNumber).HasColumnName("page_number");
entity.Property(chunk => chunk.ChunkIndex).HasColumnName("chunk_index");
entity.Property(chunk => chunk.ChunkText).HasColumnName("chunk_text").IsRequired();
entity.Property(chunk => chunk.EmbeddedAtUtc).HasColumnName("embedded_at_utc").HasConversion(utcDateTimeConverter).IsRequired();
entity.HasIndex(chunk => chunk.ChunkId).HasDatabaseName("idx_embedding_chunks_chunk_id").IsUnique();
entity.HasIndex(chunk => chunk.ParentFileId).HasDatabaseName("idx_embedding_chunks_parent_file");
entity.HasIndex(chunk => chunk.PageNumber).HasDatabaseName("idx_embedding_chunks_page");
entity.HasIndex(chunk => new { chunk.ParentFileId, chunk.ChunkIndex }).HasDatabaseName("idx_embedding_chunks_parent_file_chunk_index").IsUnique();
});
modelBuilder.Entity<EmbeddingStateSearchResultEntity>(entity =>
{
entity.HasNoKey();
entity.ToView("embedding_chunk_search_results");
entity.Property(result => result.CreationUtc).HasConversion(utcDateTimeConverter);
entity.Property(result => result.LastWriteUtc).HasConversion(utcDateTimeConverter);
entity.Property(result => result.EmbeddedAtUtc).HasConversion(utcDateTimeConverter);
});
}
private static string BuildConnectionString(string databasePath) => new SqliteConnectionStringBuilder
{
DataSource = databasePath,
Mode = SqliteOpenMode.ReadWriteCreate,
Cache = SqliteCacheMode.Shared,
ForeignKeys = true,
DefaultTimeout = 30,
}.ToString();
}
internal sealed class EmbeddingStateDataSourceEntity
{
public string DataSourceId { get; set; } = string.Empty;
public string DataSourceName { get; set; } = string.Empty;
public string DataSourceType { get; set; } = string.Empty;
public string EmbeddingProviderId { get; set; } = string.Empty;
public string EmbeddingSignature { get; set; } = string.Empty;
public string SourceHash { get; set; } = string.Empty;
public int VectorSize { get; set; }
public DateTime UpdatedAtUtc { get; set; }
public List<EmbeddingStateFileEntity> Files { get; set; } = [];
}
internal sealed class EmbeddingStateFileEntity
{
public string ParentFileId { get; set; } = string.Empty;
public string DataSourceId { get; set; } = string.Empty;
public string AbsolutePath { get; set; } = string.Empty;
public string FileName { get; set; } = string.Empty;
public string RelativePath { get; set; } = string.Empty;
public string FileType { get; set; } = string.Empty;
public string Fingerprint { get; set; } = string.Empty;
public long FileSize { get; set; }
public DateTime CreationUtc { get; set; }
public DateTime LastWriteUtc { get; set; }
public DateTime EmbeddedAtUtc { get; set; }
public int ChunkCount { get; set; }
public string ComplianceLevel { get; set; } = string.Empty;
public int ComplianceLevelRank { get; set; }
public EmbeddingStateDataSourceEntity? DataSource { get; set; }
public List<EmbeddingStateChunkEntity> Chunks { get; set; } = [];
}
internal sealed class EmbeddingStateChunkEntity
{
public int Id { get; set; }
public string ChunkId { get; set; } = string.Empty;
public string ParentFileId { get; set; } = string.Empty;
public int? PageNumber { get; set; }
public int ChunkIndex { get; set; }
public string ChunkText { get; set; } = string.Empty;
public DateTime EmbeddedAtUtc { get; set; }
public EmbeddingStateFileEntity? File { get; set; }
}
internal sealed class EmbeddingStateSearchResultEntity
{
public string ChunkId { get; set; } = string.Empty;
public string ParentFileId { get; set; } = string.Empty;
public string DataSourceId { get; set; } = string.Empty;
public string DataSourceName { get; set; } = string.Empty;
public string DataSourceType { get; set; } = string.Empty;
public string AbsolutePath { get; set; } = string.Empty;
public string FileName { get; set; } = string.Empty;
public string RelativePath { get; set; } = string.Empty;
public string FileType { get; set; } = string.Empty;
public int? PageNumber { get; set; }
public int ChunkIndex { get; set; }
public string ChunkText { get; set; } = string.Empty;
public double Score { get; set; }
public string Fingerprint { get; set; } = string.Empty;
public long FileSize { get; set; }
public DateTime CreationUtc { get; set; }
public DateTime LastWriteUtc { get; set; }
public DateTime EmbeddedAtUtc { get; set; }
public int ChunkCount { get; set; }
public string ComplianceLevel { get; set; } = string.Empty;
public int ComplianceLevelRank { get; set; }
}
internal sealed class EmbeddingStateDateTimeConverter() : ValueConverter<DateTime, string>(
value => EmbeddingStateDateTime.ToUtcText(value),
value => EmbeddingStateDateTime.ParseUtc(value));
internal static class EmbeddingStateDateTime
{
public static string ToUtcText(DateTime dateTime)
{
var utc = dateTime.Kind is DateTimeKind.Utc ? dateTime : dateTime.ToUniversalTime();
return utc.ToString("O", CultureInfo.InvariantCulture);
}
public static DateTime ParseUtc(string value)
{
return DateTime.TryParse(value, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind, out var dateTime)
? dateTime.ToUniversalTime()
: DateTime.UnixEpoch;
}
}

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using Microsoft.EntityFrameworkCore.Design;
namespace AIStudio.Tools.Databases.EmbeddingState;
internal sealed class EmbeddingStateDesignTimeDbContextFactory : IDesignTimeDbContextFactory<EmbeddingStateDbContext>
{
public EmbeddingStateDbContext CreateDbContext(string[] args)
{
var databasePath = args.FirstOrDefault(argument => argument.EndsWith(".sqlite3", StringComparison.OrdinalIgnoreCase));
if (string.IsNullOrWhiteSpace(databasePath))
databasePath = Path.Combine(Path.GetTempPath(), "mindwork-ai-studio-rag-index-design.sqlite3");
return new EmbeddingStateDbContext(EmbeddingStateDbContext.CreateOptions(databasePath));
}
}

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using System.Diagnostics.CodeAnalysis;
using Microsoft.EntityFrameworkCore;
namespace AIStudio.Tools.Databases.EmbeddingState;
internal static class EmbeddingStateSchemaMigrator
{
[DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(Migrations.InitialRagIndex))]
public static async Task MigrateAsync(EmbeddingStateDbContext context, CancellationToken token)
{
await context.Database.MigrateAsync(token);
await context.Database.ExecuteSqlRawAsync("PRAGMA journal_mode=WAL;", token);
}
}

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#nullable disable
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;
namespace AIStudio.Tools.Databases.EmbeddingState.Migrations;
[DbContext(typeof(EmbeddingStateDbContext))]
[Migration("20260804000000_InitialRagIndex")]
public partial class InitialRagIndex : Migration
{
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.CreateTable(
name: "data_sources",
columns: table => new
{
data_source_id = table.Column<string>(type: "TEXT", nullable: false),
data_source_name = table.Column<string>(type: "TEXT", nullable: false),
data_source_type = table.Column<string>(type: "TEXT", nullable: false),
embedding_provider_id = table.Column<string>(type: "TEXT", nullable: false),
embedding_signature = table.Column<string>(type: "TEXT", nullable: false),
source_hash = table.Column<string>(type: "TEXT", nullable: false, defaultValue: string.Empty),
vector_size = table.Column<int>(type: "INTEGER", nullable: false, defaultValue: 0),
updated_at_utc = table.Column<string>(type: "TEXT", nullable: false),
},
constraints: table =>
{
table.PrimaryKey("PK_data_sources", source => source.data_source_id);
});
migrationBuilder.CreateTable(
name: "embedded_files",
columns: table => new
{
parent_file_id = table.Column<string>(type: "TEXT", nullable: false),
data_source_id = table.Column<string>(type: "TEXT", nullable: false),
absolute_path = table.Column<string>(type: "TEXT", nullable: false, collation: "NOCASE"),
file_name = table.Column<string>(type: "TEXT", nullable: false),
relative_path = table.Column<string>(type: "TEXT", nullable: false),
file_type = table.Column<string>(type: "TEXT", nullable: false),
fingerprint = table.Column<string>(type: "TEXT", nullable: false),
file_size = table.Column<long>(type: "INTEGER", nullable: false),
creation_utc = table.Column<string>(type: "TEXT", nullable: false),
last_write_utc = table.Column<string>(type: "TEXT", nullable: false),
embedded_at_utc = table.Column<string>(type: "TEXT", nullable: false),
chunk_count = table.Column<int>(type: "INTEGER", nullable: false),
compliance_level = table.Column<string>(type: "TEXT", nullable: false),
compliance_level_rank = table.Column<int>(type: "INTEGER", nullable: false),
},
constraints: table =>
{
table.PrimaryKey("PK_embedded_files", file => file.parent_file_id);
table.ForeignKey(
name: "FK_embedded_files_data_sources_data_source_id",
column: file => file.data_source_id,
principalTable: "data_sources",
principalColumn: "data_source_id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateTable(
name: "embedding_chunks",
columns: table => new
{
id = table.Column<int>(type: "INTEGER", nullable: false)
.Annotation("Sqlite:Autoincrement", true),
chunk_id = table.Column<string>(type: "TEXT", nullable: false),
parent_file_id = table.Column<string>(type: "TEXT", nullable: false),
page_number = table.Column<int>(type: "INTEGER", nullable: true),
chunk_index = table.Column<int>(type: "INTEGER", nullable: false),
chunk_text = table.Column<string>(type: "TEXT", nullable: false),
embedded_at_utc = table.Column<string>(type: "TEXT", nullable: false),
},
constraints: table =>
{
table.PrimaryKey("PK_embedding_chunks", chunk => chunk.id);
table.ForeignKey(
name: "FK_embedding_chunks_embedded_files_parent_file_id",
column: chunk => chunk.parent_file_id,
principalTable: "embedded_files",
principalColumn: "parent_file_id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateIndex(
name: "idx_embedded_files_absolute_path",
table: "embedded_files",
column: "absolute_path");
migrationBuilder.CreateIndex(
name: "idx_embedded_files_compliance",
table: "embedded_files",
column: "compliance_level_rank");
migrationBuilder.CreateIndex(
name: "idx_embedded_files_data_source",
table: "embedded_files",
column: "data_source_id");
migrationBuilder.CreateIndex(
name: "idx_embedded_files_data_source_absolute_path",
table: "embedded_files",
columns: ["data_source_id", "absolute_path"],
unique: true);
migrationBuilder.CreateIndex(
name: "idx_embedded_files_file_type",
table: "embedded_files",
column: "file_type");
migrationBuilder.CreateIndex(
name: "idx_embedding_chunks_chunk_id",
table: "embedding_chunks",
column: "chunk_id",
unique: true);
migrationBuilder.CreateIndex(
name: "idx_embedding_chunks_page",
table: "embedding_chunks",
column: "page_number");
migrationBuilder.CreateIndex(
name: "idx_embedding_chunks_parent_file",
table: "embedding_chunks",
column: "parent_file_id");
migrationBuilder.CreateIndex(
name: "idx_embedding_chunks_parent_file_chunk_index",
table: "embedding_chunks",
columns: ["parent_file_id", "chunk_index"],
unique: true);
migrationBuilder.Sql("""
CREATE VIRTUAL TABLE IF NOT EXISTS embedding_chunks_fts
USING fts5(chunk_id UNINDEXED, file_name, chunk_text);
CREATE TRIGGER IF NOT EXISTS embedding_chunks_ai
AFTER INSERT ON embedding_chunks
BEGIN
INSERT INTO embedding_chunks_fts(rowid, chunk_id, file_name, chunk_text)
VALUES (
new.id,
new.chunk_id,
(SELECT file_name FROM embedded_files WHERE parent_file_id = new.parent_file_id),
new.chunk_text);
END;
CREATE TRIGGER IF NOT EXISTS embedding_chunks_ad
AFTER DELETE ON embedding_chunks
BEGIN
DELETE FROM embedding_chunks_fts
WHERE rowid = old.id;
END;
CREATE TRIGGER IF NOT EXISTS embedding_chunks_au
AFTER UPDATE ON embedding_chunks
BEGIN
DELETE FROM embedding_chunks_fts
WHERE rowid = old.id;
INSERT INTO embedding_chunks_fts(rowid, chunk_id, file_name, chunk_text)
VALUES (
new.id,
new.chunk_id,
(SELECT file_name FROM embedded_files WHERE parent_file_id = new.parent_file_id),
new.chunk_text);
END;
CREATE TRIGGER IF NOT EXISTS embedded_files_file_name_au
AFTER UPDATE OF file_name ON embedded_files
BEGIN
DELETE FROM embedding_chunks_fts
WHERE rowid IN (
SELECT id
FROM embedding_chunks
WHERE parent_file_id = new.parent_file_id
);
INSERT INTO embedding_chunks_fts(rowid, chunk_id, file_name, chunk_text)
SELECT id, chunk_id, new.file_name, chunk_text
FROM embedding_chunks
WHERE parent_file_id = new.parent_file_id;
END;
""");
}
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.Sql("""
DROP TRIGGER IF EXISTS embedded_files_file_name_au;
DROP TRIGGER IF EXISTS embedding_chunks_au;
DROP TRIGGER IF EXISTS embedding_chunks_ad;
DROP TRIGGER IF EXISTS embedding_chunks_ai;
DROP TABLE IF EXISTS embedding_chunks_fts;
""");
migrationBuilder.DropTable(name: "embedding_chunks");
migrationBuilder.DropTable(name: "embedded_files");
migrationBuilder.DropTable(name: "data_sources");
}
}

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#nullable disable
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
namespace AIStudio.Tools.Databases.EmbeddingState.Migrations;
[DbContext(typeof(EmbeddingStateDbContext))]
partial class EmbeddingStateDbContextModelSnapshot : ModelSnapshot
{
protected override void BuildModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder.HasAnnotation("ProductVersion", "9.0.18");
var utcDateTimeConverter = new EmbeddingStateDateTimeConverter();
modelBuilder.Entity("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateDataSourceEntity", entity =>
{
entity.Property<string>("DataSourceId")
.HasColumnType("TEXT")
.HasColumnName("data_source_id");
entity.Property<string>("DataSourceName")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("data_source_name");
entity.Property<string>("DataSourceType")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("data_source_type");
entity.Property<string>("EmbeddingProviderId")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("embedding_provider_id");
entity.Property<string>("EmbeddingSignature")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("embedding_signature");
entity.Property<string>("SourceHash")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("source_hash")
.HasDefaultValue(string.Empty);
entity.Property<DateTime>("UpdatedAtUtc")
.HasConversion(utcDateTimeConverter)
.HasColumnType("TEXT")
.HasColumnName("updated_at_utc");
entity.Property<int>("VectorSize")
.HasColumnType("INTEGER")
.HasColumnName("vector_size")
.HasDefaultValue(0);
entity.HasKey("DataSourceId");
entity.ToTable("data_sources");
});
modelBuilder.Entity("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateFileEntity", entity =>
{
entity.Property<string>("ParentFileId")
.HasColumnType("TEXT")
.HasColumnName("parent_file_id");
entity.Property<string>("AbsolutePath")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("absolute_path")
.UseCollation("NOCASE");
entity.Property<int>("ChunkCount")
.HasColumnType("INTEGER")
.HasColumnName("chunk_count");
entity.Property<string>("ComplianceLevel")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("compliance_level");
entity.Property<int>("ComplianceLevelRank")
.HasColumnType("INTEGER")
.HasColumnName("compliance_level_rank");
entity.Property<DateTime>("CreationUtc")
.HasConversion(utcDateTimeConverter)
.HasColumnType("TEXT")
.HasColumnName("creation_utc");
entity.Property<string>("DataSourceId")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("data_source_id");
entity.Property<DateTime>("EmbeddedAtUtc")
.HasConversion(utcDateTimeConverter)
.HasColumnType("TEXT")
.HasColumnName("embedded_at_utc");
entity.Property<string>("FileName")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("file_name");
entity.Property<long>("FileSize")
.HasColumnType("INTEGER")
.HasColumnName("file_size");
entity.Property<string>("FileType")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("file_type");
entity.Property<string>("Fingerprint")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("fingerprint");
entity.Property<DateTime>("LastWriteUtc")
.HasConversion(utcDateTimeConverter)
.HasColumnType("TEXT")
.HasColumnName("last_write_utc");
entity.Property<string>("RelativePath")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("relative_path");
entity.HasKey("ParentFileId");
entity.HasIndex("AbsolutePath")
.HasDatabaseName("idx_embedded_files_absolute_path");
entity.HasIndex("ComplianceLevelRank")
.HasDatabaseName("idx_embedded_files_compliance");
entity.HasIndex("DataSourceId")
.HasDatabaseName("idx_embedded_files_data_source");
entity.HasIndex("DataSourceId", "AbsolutePath")
.IsUnique()
.HasDatabaseName("idx_embedded_files_data_source_absolute_path");
entity.HasIndex("FileType")
.HasDatabaseName("idx_embedded_files_file_type");
entity.ToTable("embedded_files");
});
modelBuilder.Entity("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateChunkEntity", entity =>
{
entity.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("INTEGER")
.HasColumnName("id")
.HasAnnotation("Sqlite:Autoincrement", true);
entity.Property<string>("ChunkId")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("chunk_id");
entity.Property<int>("ChunkIndex")
.HasColumnType("INTEGER")
.HasColumnName("chunk_index");
entity.Property<string>("ChunkText")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("chunk_text");
entity.Property<DateTime>("EmbeddedAtUtc")
.HasConversion(utcDateTimeConverter)
.HasColumnType("TEXT")
.HasColumnName("embedded_at_utc");
entity.Property<int?>("PageNumber")
.HasColumnType("INTEGER")
.HasColumnName("page_number");
entity.Property<string>("ParentFileId")
.IsRequired()
.HasColumnType("TEXT")
.HasColumnName("parent_file_id");
entity.HasKey("Id");
entity.HasIndex("ChunkId")
.IsUnique()
.HasDatabaseName("idx_embedding_chunks_chunk_id");
entity.HasIndex("PageNumber")
.HasDatabaseName("idx_embedding_chunks_page");
entity.HasIndex("ParentFileId")
.HasDatabaseName("idx_embedding_chunks_parent_file");
entity.HasIndex("ParentFileId", "ChunkIndex")
.IsUnique()
.HasDatabaseName("idx_embedding_chunks_parent_file_chunk_index");
entity.ToTable("embedding_chunks");
});
modelBuilder.Entity("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateSearchResultEntity", entity =>
{
entity.Property<string>("AbsolutePath")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<int>("ChunkCount")
.HasColumnType("INTEGER");
entity.Property<string>("ChunkId")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<int>("ChunkIndex")
.HasColumnType("INTEGER");
entity.Property<string>("ChunkText")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<string>("ComplianceLevel")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<int>("ComplianceLevelRank")
.HasColumnType("INTEGER");
entity.Property<DateTime>("CreationUtc")
.HasConversion(utcDateTimeConverter)
.HasColumnType("TEXT");
entity.Property<string>("DataSourceId")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<string>("DataSourceName")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<string>("DataSourceType")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<DateTime>("EmbeddedAtUtc")
.HasConversion(utcDateTimeConverter)
.HasColumnType("TEXT");
entity.Property<string>("FileName")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<long>("FileSize")
.HasColumnType("INTEGER");
entity.Property<string>("FileType")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<string>("Fingerprint")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<DateTime>("LastWriteUtc")
.HasConversion(utcDateTimeConverter)
.HasColumnType("TEXT");
entity.Property<int?>("PageNumber")
.HasColumnType("INTEGER");
entity.Property<string>("ParentFileId")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<string>("RelativePath")
.IsRequired()
.HasColumnType("TEXT");
entity.Property<double>("Score")
.HasColumnType("REAL");
entity.HasNoKey();
entity.ToView("embedding_chunk_search_results");
});
modelBuilder.Entity("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateFileEntity", entity =>
{
entity.HasOne("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateDataSourceEntity", "DataSource")
.WithMany("Files")
.HasForeignKey("DataSourceId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
entity.Navigation("DataSource");
});
modelBuilder.Entity("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateChunkEntity", entity =>
{
entity.HasOne("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateFileEntity", "File")
.WithMany("Chunks")
.HasForeignKey("ParentFileId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
entity.Navigation("File");
});
modelBuilder.Entity("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateDataSourceEntity", entity =>
{
entity.Navigation("Files");
});
modelBuilder.Entity("AIStudio.Tools.Databases.EmbeddingState.EmbeddingStateFileEntity", entity =>
{
entity.Navigation("Chunks");
});
#pragma warning restore 612, 618
}
}

View File

@ -5,7 +5,7 @@ using AIStudio.Settings;
using AIStudio.Tools.PluginSystem;
using AIStudio.Tools.Services;
using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;
namespace AIStudio.Tools.Databases.EmbeddingState;
@ -18,18 +18,12 @@ public sealed class SqliteEmbeddingStateClientImplementation(
private const string DATABASE_NAME = "Local RAG Index";
private const string DATABASE_FILENAME = "rag-index.sqlite3";
private const int MAX_FTS_QUERY_TERMS = 32;
private const int CHUNK_UPSERT_BATCH_SIZE = 500;
private static readonly Regex FTS_TOKEN_REGEX = new(@"[\p{L}\p{Nd}_]+", RegexOptions.Compiled | RegexOptions.CultureInvariant);
private readonly string databasePath = databasePath;
private readonly string connectionString = new SqliteConnectionStringBuilder
{
DataSource = databasePath,
Mode = SqliteOpenMode.ReadWriteCreate,
Cache = SqliteCacheMode.Shared,
ForeignKeys = true,
DefaultTimeout = 30,
}.ToString();
private readonly DbContextOptions<EmbeddingStateDbContext> dbContextOptions = EmbeddingStateDbContext.CreateOptions(databasePath);
private static string TB(string fallbackEN) => I18N.I.T(fallbackEN, typeof(SqliteEmbeddingStateClientImplementation).Namespace, nameof(SqliteEmbeddingStateClientImplementation));
@ -68,54 +62,45 @@ public sealed class SqliteEmbeddingStateClientImplementation(
public override async IAsyncEnumerable<(string Label, string Value)> GetDisplayInfo()
{
await using var context = this.CreateContext();
yield return (TB("Reported version"), version);
yield return (TB("Database path"), this.databasePath);
yield return (TB("Storage size"), this.GetStorageSize());
yield return (TB("Indexed data sources"), (await this.CountAsync("data_sources", CancellationToken.None)).ToString(CultureInfo.InvariantCulture));
yield return (TB("Indexed files"), (await this.CountAsync("embedded_files", CancellationToken.None)).ToString(CultureInfo.InvariantCulture));
yield return (TB("Search chunks"), (await this.CountAsync("embedding_chunks", CancellationToken.None)).ToString(CultureInfo.InvariantCulture));
yield return (TB("Indexed data sources"), (await context.DataSources.CountAsync(CancellationToken.None)).ToString(CultureInfo.InvariantCulture));
yield return (TB("Indexed files"), (await context.EmbeddedFiles.CountAsync(CancellationToken.None)).ToString(CultureInfo.InvariantCulture));
yield return (TB("Search chunks"), (await context.EmbeddingChunks.CountAsync(CancellationToken.None)).ToString(CultureInfo.InvariantCulture));
}
public override async Task<DataSourceEmbeddingManifest> GetManifestAsync(string dataSourceId, CancellationToken token)
{
await using var connection = await this.OpenConnectionAsync(token);
await using var context = this.CreateContext();
var manifest = new DataSourceEmbeddingManifest();
await using (var command = CreateCommand(connection, """
SELECT embedding_provider_id, embedding_signature, source_hash, vector_size
FROM data_sources
WHERE data_source_id = $dataSourceId
"""))
{
command.Parameters.AddWithValue("$dataSourceId", dataSourceId);
await using var reader = await command.ExecuteReaderAsync(token);
if (await reader.ReadAsync(token))
{
manifest.EmbeddingProviderId = reader.GetString(0);
manifest.EmbeddingSignature = reader.GetString(1);
manifest.SourceHash = reader.GetString(2);
manifest.VectorSize = reader.GetInt32(3);
}
}
var dataSource = await context.DataSources
.AsNoTracking()
.FirstOrDefaultAsync(source => source.DataSourceId == dataSourceId, token);
await using (var command = CreateCommand(connection, """
SELECT absolute_path, fingerprint, file_size, last_write_utc, embedded_at_utc, chunk_count
FROM embedded_files
WHERE data_source_id = $dataSourceId
AND chunk_count > 0
"""))
if (dataSource is null)
return manifest;
manifest.EmbeddingProviderId = dataSource.EmbeddingProviderId;
manifest.EmbeddingSignature = dataSource.EmbeddingSignature;
manifest.SourceHash = dataSource.SourceHash;
manifest.VectorSize = dataSource.VectorSize;
var files = await context.EmbeddedFiles
.AsNoTracking()
.Where(file => file.DataSourceId == dataSourceId && file.ChunkCount > 0)
.ToListAsync(token);
foreach (var file in files)
{
command.Parameters.AddWithValue("$dataSourceId", dataSourceId);
await using var reader = await command.ExecuteReaderAsync(token);
while (await reader.ReadAsync(token))
{
manifest.Files[reader.GetString(0)] = new EmbeddedFileRecord(
reader.GetString(1),
reader.GetInt64(2),
ParseUtc(reader.GetString(3)),
ParseUtc(reader.GetString(4)),
reader.GetInt32(5));
}
manifest.Files[file.AbsolutePath] = new EmbeddedFileRecord(
file.Fingerprint,
file.FileSize,
file.LastWriteUtc,
file.EmbeddedAtUtc,
file.ChunkCount);
}
return manifest;
@ -131,148 +116,82 @@ public sealed class SqliteEmbeddingStateClientImplementation(
int vectorSize,
CancellationToken token)
{
await using var connection = await this.OpenConnectionAsync(token);
await ExecuteNonQueryAsync(connection, """
INSERT INTO data_sources (
data_source_id,
data_source_name,
data_source_type,
embedding_provider_id,
embedding_signature,
source_hash,
vector_size,
updated_at_utc)
VALUES (
$dataSourceId,
$dataSourceName,
$dataSourceType,
$embeddingProviderId,
$embeddingSignature,
$sourceHash,
$vectorSize,
$updatedAtUtc)
ON CONFLICT(data_source_id) DO UPDATE SET
data_source_name = excluded.data_source_name,
data_source_type = excluded.data_source_type,
embedding_provider_id = excluded.embedding_provider_id,
embedding_signature = excluded.embedding_signature,
source_hash = excluded.source_hash,
vector_size = excluded.vector_size,
updated_at_utc = excluded.updated_at_utc
""", token,
("$dataSourceId", dataSourceId),
("$dataSourceName", dataSourceName),
("$dataSourceType", dataSourceType),
("$embeddingProviderId", embeddingProviderId),
("$embeddingSignature", embeddingSignature),
("$sourceHash", sourceHash),
("$vectorSize", vectorSize),
("$updatedAtUtc", ToUtcText(DateTime.UtcNow)));
await using var context = this.CreateContext();
var dataSource = await context.DataSources.FirstOrDefaultAsync(source => source.DataSourceId == dataSourceId, token);
if (dataSource is null)
{
dataSource = new EmbeddingStateDataSourceEntity
{
DataSourceId = dataSourceId,
};
context.DataSources.Add(dataSource);
}
ApplyDataSource(dataSource, dataSourceName, dataSourceType, embeddingProviderId, embeddingSignature, sourceHash, vectorSize);
await context.SaveChangesAsync(token);
}
public override async Task UpdateVectorSizeAsync(string dataSourceId, int vectorSize, CancellationToken token)
{
await using var connection = await this.OpenConnectionAsync(token);
await ExecuteNonQueryAsync(connection, """
UPDATE data_sources
SET vector_size = $vectorSize,
updated_at_utc = $updatedAtUtc
WHERE data_source_id = $dataSourceId
""", token,
("$dataSourceId", dataSourceId),
("$vectorSize", vectorSize),
("$updatedAtUtc", ToUtcText(DateTime.UtcNow)));
await using var context = this.CreateContext();
var dataSource = await context.DataSources.FirstOrDefaultAsync(source => source.DataSourceId == dataSourceId, token);
if (dataSource is null)
return;
dataSource.VectorSize = vectorSize;
dataSource.UpdatedAtUtc = DateTime.UtcNow;
await context.SaveChangesAsync(token);
}
public override async Task UpdateDataSourceHashAsync(string dataSourceId, string sourceHash, CancellationToken token)
{
await using var connection = await this.OpenConnectionAsync(token);
await ExecuteNonQueryAsync(connection, """
UPDATE data_sources
SET source_hash = $sourceHash,
updated_at_utc = $updatedAtUtc
WHERE data_source_id = $dataSourceId
""", token,
("$dataSourceId", dataSourceId),
("$sourceHash", sourceHash),
("$updatedAtUtc", ToUtcText(DateTime.UtcNow)));
await using var context = this.CreateContext();
var dataSource = await context.DataSources.FirstOrDefaultAsync(source => source.DataSourceId == dataSourceId, token);
if (dataSource is null)
return;
dataSource.SourceHash = sourceHash;
dataSource.UpdatedAtUtc = DateTime.UtcNow;
await context.SaveChangesAsync(token);
}
public override async Task UpsertFileAsync(string dataSourceId, EmbeddingStateFile file, CancellationToken token)
{
await using var connection = await this.OpenConnectionAsync(token);
await ExecuteNonQueryAsync(connection, """
INSERT INTO embedded_files (
parent_file_id,
data_source_id,
absolute_path,
file_name,
relative_path,
file_type,
fingerprint,
file_size,
creation_utc,
last_write_utc,
embedded_at_utc,
chunk_count,
compliance_level,
compliance_level_rank)
VALUES (
$parentFileId,
$dataSourceId,
$absolutePath,
$fileName,
$relativePath,
$fileType,
$fingerprint,
$fileSize,
$creationUtc,
$lastWriteUtc,
$embeddedAtUtc,
$chunkCount,
$complianceLevel,
$complianceLevelRank)
ON CONFLICT(parent_file_id) DO UPDATE SET
data_source_id = excluded.data_source_id,
absolute_path = excluded.absolute_path,
file_name = excluded.file_name,
relative_path = excluded.relative_path,
file_type = excluded.file_type,
fingerprint = excluded.fingerprint,
file_size = excluded.file_size,
creation_utc = excluded.creation_utc,
last_write_utc = excluded.last_write_utc,
embedded_at_utc = excluded.embedded_at_utc,
chunk_count = excluded.chunk_count,
compliance_level = excluded.compliance_level,
compliance_level_rank = excluded.compliance_level_rank
""", token,
("$parentFileId", file.ParentFileId),
("$dataSourceId", dataSourceId),
("$absolutePath", file.AbsolutePath),
("$fileName", file.FileName),
("$relativePath", file.RelativePath),
("$fileType", file.FileType),
("$fingerprint", file.Fingerprint),
("$fileSize", file.FileSize),
("$creationUtc", ToUtcText(file.CreationUtc)),
("$lastWriteUtc", ToUtcText(file.LastWriteUtc)),
("$embeddedAtUtc", ToUtcText(file.EmbeddedAtUtc)),
("$chunkCount", file.ChunkCount),
("$complianceLevel", file.ComplianceLevel),
("$complianceLevelRank", file.ComplianceLevelRank));
await using var context = this.CreateContext();
var fileEntity = await context.EmbeddedFiles.FirstOrDefaultAsync(entity => entity.ParentFileId == file.ParentFileId, token);
if (fileEntity is null)
{
fileEntity = new EmbeddingStateFileEntity
{
ParentFileId = file.ParentFileId,
};
context.EmbeddedFiles.Add(fileEntity);
}
ApplyFile(fileEntity, dataSourceId, file);
await context.SaveChangesAsync(token);
}
public override async Task DeleteFileAsync(string dataSourceId, string filePath, CancellationToken token)
{
await using var connection = await this.OpenConnectionAsync(token);
await ExecuteNonQueryAsync(connection, """
DELETE FROM embedded_files
WHERE data_source_id = $dataSourceId
AND absolute_path = $filePath
""", token,
("$dataSourceId", dataSourceId),
("$filePath", filePath));
await using var context = this.CreateContext();
await using var transaction = await context.Database.BeginTransactionAsync(token);
var parentFileIds = await context.EmbeddedFiles
.Where(file => file.DataSourceId == dataSourceId && file.AbsolutePath == filePath)
.Select(file => file.ParentFileId)
.ToListAsync(token);
foreach (var parentFileIdBatch in parentFileIds.Chunk(CHUNK_UPSERT_BATCH_SIZE))
await context.EmbeddingChunks
.Where(chunk => parentFileIdBatch.Contains(chunk.ParentFileId))
.ExecuteDeleteAsync(token);
await context.EmbeddedFiles
.Where(file => file.DataSourceId == dataSourceId && file.AbsolutePath == filePath)
.ExecuteDeleteAsync(token);
await transaction.CommitAsync(token);
}
public override async Task UpsertChunksAsync(string dataSourceId, IReadOnlyList<EmbeddingStateChunk> chunks, CancellationToken token)
@ -280,41 +199,38 @@ public sealed class SqliteEmbeddingStateClientImplementation(
if (chunks.Count == 0)
return;
await using var connection = await this.OpenConnectionAsync(token);
await using var transaction = (SqliteTransaction)await connection.BeginTransactionAsync(token);
await using var context = this.CreateContext();
await using var transaction = await context.Database.BeginTransactionAsync(token);
foreach (var chunk in chunks)
foreach (var chunkBatch in chunks.Chunk(CHUNK_UPSERT_BATCH_SIZE))
{
token.ThrowIfCancellationRequested();
await ExecuteNonQueryAsync(connection, transaction, """
INSERT INTO embedding_chunks (
chunk_id,
parent_file_id,
page_number,
chunk_index,
chunk_text,
embedded_at_utc)
VALUES (
$chunkId,
$parentFileId,
$pageNumber,
$chunkIndex,
$chunkText,
$embeddedAtUtc)
ON CONFLICT(chunk_id) DO UPDATE SET
parent_file_id = excluded.parent_file_id,
page_number = excluded.page_number,
chunk_index = excluded.chunk_index,
chunk_text = excluded.chunk_text,
embedded_at_utc = excluded.embedded_at_utc
""", token,
("$chunkId", chunk.ChunkId),
("$parentFileId", chunk.ParentFileId),
("$pageNumber", chunk.PageNumber),
("$chunkIndex", chunk.ChunkIndex),
("$chunkText", chunk.ChunkText),
("$embeddedAtUtc", ToUtcText(chunk.EmbeddedAtUtc)));
var chunkIds = chunkBatch
.Select(chunk => chunk.ChunkId)
.Distinct(StringComparer.Ordinal)
.ToArray();
var existingChunks = await context.EmbeddingChunks
.Where(chunk => chunkIds.Contains(chunk.ChunkId))
.ToDictionaryAsync(chunk => chunk.ChunkId, StringComparer.Ordinal, token);
foreach (var chunk in chunkBatch)
{
if (!existingChunks.TryGetValue(chunk.ChunkId, out var chunkEntity))
{
chunkEntity = new EmbeddingStateChunkEntity
{
ChunkId = chunk.ChunkId,
};
context.EmbeddingChunks.Add(chunkEntity);
existingChunks[chunk.ChunkId] = chunkEntity;
}
ApplyChunk(chunkEntity, chunk);
}
await context.SaveChangesAsync(token);
context.ChangeTracker.Clear();
}
await transaction.CommitAsync(token);
@ -329,83 +245,66 @@ public sealed class SqliteEmbeddingStateClientImplementation(
if (string.IsNullOrWhiteSpace(ftsQuery))
return [];
var results = new List<EmbeddingStateSearchResult>(maxMatches);
await using var connection = await this.OpenConnectionAsync(token);
await using var command = CreateCommand(connection, """
SELECT
c.chunk_id,
c.parent_file_id,
ds.data_source_id,
ds.data_source_name,
ds.data_source_type,
f.absolute_path,
f.file_name,
f.relative_path,
f.file_type,
c.page_number,
c.chunk_index,
c.chunk_text,
bm25(embedding_chunks_fts) AS score,
f.fingerprint,
f.file_size,
f.creation_utc,
f.last_write_utc,
c.embedded_at_utc,
f.chunk_count,
f.compliance_level,
f.compliance_level_rank
FROM embedding_chunks_fts
JOIN embedding_chunks c ON c.id = embedding_chunks_fts.rowid
JOIN embedded_files f ON f.parent_file_id = c.parent_file_id
JOIN data_sources ds ON ds.data_source_id = f.data_source_id
WHERE ds.data_source_id = $dataSourceId
AND embedding_chunks_fts MATCH $query
ORDER BY score
LIMIT $maxMatches
""");
await using var context = this.CreateContext();
var results = await context.SearchResults
.FromSqlInterpolated($"""
SELECT
c.chunk_id AS ChunkId,
c.parent_file_id AS ParentFileId,
ds.data_source_id AS DataSourceId,
ds.data_source_name AS DataSourceName,
ds.data_source_type AS DataSourceType,
f.absolute_path AS AbsolutePath,
f.file_name AS FileName,
f.relative_path AS RelativePath,
f.file_type AS FileType,
c.page_number AS PageNumber,
c.chunk_index AS ChunkIndex,
c.chunk_text AS ChunkText,
bm25(embedding_chunks_fts) AS Score,
f.fingerprint AS Fingerprint,
f.file_size AS FileSize,
f.creation_utc AS CreationUtc,
f.last_write_utc AS LastWriteUtc,
c.embedded_at_utc AS EmbeddedAtUtc,
f.chunk_count AS ChunkCount,
f.compliance_level AS ComplianceLevel,
f.compliance_level_rank AS ComplianceLevelRank
FROM embedding_chunks_fts
JOIN embedding_chunks c ON c.id = embedding_chunks_fts.rowid
JOIN embedded_files f ON f.parent_file_id = c.parent_file_id
JOIN data_sources ds ON ds.data_source_id = f.data_source_id
WHERE ds.data_source_id = {dataSourceId}
AND embedding_chunks_fts MATCH {ftsQuery}
ORDER BY Score
LIMIT {maxMatches}
""")
.AsNoTracking()
.ToListAsync(token);
command.Parameters.AddWithValue("$dataSourceId", dataSourceId);
command.Parameters.AddWithValue("$query", ftsQuery);
command.Parameters.AddWithValue("$maxMatches", maxMatches);
await using var reader = await command.ExecuteReaderAsync(token);
while (await reader.ReadAsync(token))
{
results.Add(new EmbeddingStateSearchResult(
reader.GetString(0),
reader.GetString(1),
reader.GetString(2),
reader.GetString(3),
reader.GetString(4),
reader.GetString(5),
reader.GetString(6),
reader.GetString(7),
reader.GetString(8),
reader.IsDBNull(9) ? null : reader.GetInt32(9),
reader.GetInt32(10),
reader.GetString(11),
reader.GetDouble(12),
reader.GetString(13),
reader.GetInt64(14),
ParseUtc(reader.GetString(15)),
ParseUtc(reader.GetString(16)),
ParseUtc(reader.GetString(17)),
reader.GetInt32(18),
reader.GetString(19),
reader.GetInt32(20)));
}
return results;
return results.Select(ToSearchResult).ToList();
}
public override async Task DeleteDataSourceAsync(string dataSourceId, CancellationToken token)
{
await using var connection = await this.OpenConnectionAsync(token);
await ExecuteNonQueryAsync(connection, """
DELETE FROM data_sources
WHERE data_source_id = $dataSourceId
""", token,
("$dataSourceId", dataSourceId));
await using var context = this.CreateContext();
await using var transaction = await context.Database.BeginTransactionAsync(token);
var parentFileIds = await context.EmbeddedFiles
.Where(file => file.DataSourceId == dataSourceId)
.Select(file => file.ParentFileId)
.ToListAsync(token);
foreach (var parentFileIdBatch in parentFileIds.Chunk(CHUNK_UPSERT_BATCH_SIZE))
await context.EmbeddingChunks
.Where(chunk => parentFileIdBatch.Contains(chunk.ParentFileId))
.ExecuteDeleteAsync(token);
await context.DataSources
.Where(source => source.DataSourceId == dataSourceId)
.ExecuteDeleteAsync(token);
await transaction.CommitAsync(token);
}
public override void Dispose()
@ -414,198 +313,88 @@ public sealed class SqliteEmbeddingStateClientImplementation(
private async Task InitializeAsync(CancellationToken token)
{
await using var connection = await this.OpenConnectionAsync(token);
await ExecuteNonQueryAsync(connection, """
PRAGMA journal_mode=WAL;
PRAGMA foreign_keys=ON;
CREATE TABLE IF NOT EXISTS data_sources (
data_source_id TEXT PRIMARY KEY,
data_source_name TEXT NOT NULL,
data_source_type TEXT NOT NULL,
embedding_provider_id TEXT NOT NULL,
embedding_signature TEXT NOT NULL,
source_hash TEXT NOT NULL DEFAULT '',
vector_size INTEGER NOT NULL DEFAULT 0,
updated_at_utc TEXT NOT NULL
);
CREATE TABLE IF NOT EXISTS embedded_files (
parent_file_id TEXT PRIMARY KEY,
data_source_id TEXT NOT NULL,
absolute_path TEXT COLLATE NOCASE NOT NULL,
file_name TEXT NOT NULL,
relative_path TEXT NOT NULL,
file_type TEXT NOT NULL,
fingerprint TEXT NOT NULL,
file_size INTEGER NOT NULL,
creation_utc TEXT NOT NULL,
last_write_utc TEXT NOT NULL,
embedded_at_utc TEXT NOT NULL,
chunk_count INTEGER NOT NULL,
compliance_level TEXT NOT NULL,
compliance_level_rank INTEGER NOT NULL,
FOREIGN KEY (data_source_id)
REFERENCES data_sources(data_source_id)
ON DELETE CASCADE,
UNIQUE(data_source_id, absolute_path)
);
CREATE TABLE IF NOT EXISTS embedding_chunks (
id INTEGER PRIMARY KEY AUTOINCREMENT,
chunk_id TEXT NOT NULL UNIQUE,
parent_file_id TEXT NOT NULL,
page_number INTEGER NULL,
chunk_index INTEGER NOT NULL,
chunk_text TEXT NOT NULL,
embedded_at_utc TEXT NOT NULL,
FOREIGN KEY (parent_file_id)
REFERENCES embedded_files(parent_file_id)
ON DELETE CASCADE,
UNIQUE(parent_file_id, chunk_index)
);
CREATE INDEX IF NOT EXISTS idx_embedded_files_data_source
ON embedded_files(data_source_id);
CREATE INDEX IF NOT EXISTS idx_embedded_files_absolute_path
ON embedded_files(absolute_path);
CREATE INDEX IF NOT EXISTS idx_embedded_files_file_type
ON embedded_files(file_type);
CREATE INDEX IF NOT EXISTS idx_embedded_files_compliance
ON embedded_files(compliance_level_rank);
CREATE INDEX IF NOT EXISTS idx_embedding_chunks_parent_file
ON embedding_chunks(parent_file_id);
CREATE INDEX IF NOT EXISTS idx_embedding_chunks_page
ON embedding_chunks(page_number);
CREATE VIRTUAL TABLE IF NOT EXISTS embedding_chunks_fts
USING fts5(chunk_id UNINDEXED, file_name, chunk_text);
CREATE TRIGGER IF NOT EXISTS embedding_chunks_ai
AFTER INSERT ON embedding_chunks
BEGIN
INSERT INTO embedding_chunks_fts(rowid, chunk_id, file_name, chunk_text)
VALUES (
new.id,
new.chunk_id,
(SELECT file_name FROM embedded_files WHERE parent_file_id = new.parent_file_id),
new.chunk_text);
END;
CREATE TRIGGER IF NOT EXISTS embedding_chunks_ad
AFTER DELETE ON embedding_chunks
BEGIN
DELETE FROM embedding_chunks_fts
WHERE rowid = old.id;
END;
CREATE TRIGGER IF NOT EXISTS embedding_chunks_au
AFTER UPDATE ON embedding_chunks
BEGIN
DELETE FROM embedding_chunks_fts
WHERE rowid = old.id;
INSERT INTO embedding_chunks_fts(rowid, chunk_id, file_name, chunk_text)
VALUES (
new.id,
new.chunk_id,
(SELECT file_name FROM embedded_files WHERE parent_file_id = new.parent_file_id),
new.chunk_text);
END;
CREATE TRIGGER IF NOT EXISTS embedded_files_file_name_au
AFTER UPDATE OF file_name ON embedded_files
BEGIN
DELETE FROM embedding_chunks_fts
WHERE rowid IN (
SELECT id
FROM embedding_chunks
WHERE parent_file_id = new.parent_file_id
);
INSERT INTO embedding_chunks_fts(rowid, chunk_id, file_name, chunk_text)
SELECT id, chunk_id, new.file_name, chunk_text
FROM embedding_chunks
WHERE parent_file_id = new.parent_file_id;
END;
""", token);
await using var context = this.CreateContext();
await EmbeddingStateSchemaMigrator.MigrateAsync(context, token);
}
private async Task<string> GetSqliteVersionAsync(CancellationToken token)
{
await using var connection = await this.OpenConnectionAsync(token);
await using var command = CreateCommand(connection, "SELECT sqlite_version()");
var versionObject = await command.ExecuteScalarAsync(token);
return Convert.ToString(versionObject, CultureInfo.InvariantCulture) ?? string.Empty;
await using var context = this.CreateContext();
var versions = await context.Database
.SqlQueryRaw<string>("SELECT sqlite_version() AS Value")
.ToListAsync(token);
return versions.FirstOrDefault() ?? string.Empty;
}
private async Task<long> CountAsync(string tableName, CancellationToken token)
private EmbeddingStateDbContext CreateContext() => new(this.dbContextOptions);
private static void ApplyDataSource(
EmbeddingStateDataSourceEntity dataSource,
string dataSourceName,
string dataSourceType,
string embeddingProviderId,
string embeddingSignature,
string sourceHash,
int vectorSize)
{
await using var connection = await this.OpenConnectionAsync(token);
await using var command = CreateCommand(connection, $"SELECT COUNT(*) FROM {tableName}");
var countObject = await command.ExecuteScalarAsync(token);
return Convert.ToInt64(countObject, CultureInfo.InvariantCulture);
dataSource.DataSourceName = dataSourceName;
dataSource.DataSourceType = dataSourceType;
dataSource.EmbeddingProviderId = embeddingProviderId;
dataSource.EmbeddingSignature = embeddingSignature;
dataSource.SourceHash = sourceHash;
dataSource.VectorSize = vectorSize;
dataSource.UpdatedAtUtc = DateTime.UtcNow;
}
private async Task<SqliteConnection> OpenConnectionAsync(CancellationToken token)
private static void ApplyFile(EmbeddingStateFileEntity fileEntity, string dataSourceId, EmbeddingStateFile file)
{
var connection = new SqliteConnection(this.connectionString);
await connection.OpenAsync(token);
return connection;
fileEntity.DataSourceId = dataSourceId;
fileEntity.AbsolutePath = file.AbsolutePath;
fileEntity.FileName = file.FileName;
fileEntity.RelativePath = file.RelativePath;
fileEntity.FileType = file.FileType;
fileEntity.Fingerprint = file.Fingerprint;
fileEntity.FileSize = file.FileSize;
fileEntity.CreationUtc = file.CreationUtc;
fileEntity.LastWriteUtc = file.LastWriteUtc;
fileEntity.EmbeddedAtUtc = file.EmbeddedAtUtc;
fileEntity.ChunkCount = file.ChunkCount;
fileEntity.ComplianceLevel = file.ComplianceLevel;
fileEntity.ComplianceLevelRank = file.ComplianceLevelRank;
}
private static SqliteCommand CreateCommand(SqliteConnection connection, string commandText)
private static void ApplyChunk(EmbeddingStateChunkEntity chunkEntity, EmbeddingStateChunk chunk)
{
var command = connection.CreateCommand();
command.CommandText = commandText;
return command;
chunkEntity.ChunkId = chunk.ChunkId;
chunkEntity.ParentFileId = chunk.ParentFileId;
chunkEntity.PageNumber = chunk.PageNumber;
chunkEntity.ChunkIndex = chunk.ChunkIndex;
chunkEntity.ChunkText = chunk.ChunkText;
chunkEntity.EmbeddedAtUtc = chunk.EmbeddedAtUtc;
}
private static async Task ExecuteNonQueryAsync(
SqliteConnection connection,
string commandText,
CancellationToken token,
params (string Name, object? Value)[] parameters)
{
await using var command = CreateCommand(connection, commandText);
foreach (var (name, value) in parameters)
command.Parameters.AddWithValue(name, value ?? DBNull.Value);
await command.ExecuteNonQueryAsync(token);
}
private static async Task ExecuteNonQueryAsync(
SqliteConnection connection,
SqliteTransaction transaction,
string commandText,
CancellationToken token,
params (string Name, object? Value)[] parameters)
{
await using var command = CreateCommand(connection, commandText);
command.Transaction = transaction;
foreach (var (name, value) in parameters)
command.Parameters.AddWithValue(name, value ?? DBNull.Value);
await command.ExecuteNonQueryAsync(token);
}
private static string ToUtcText(DateTime dateTime)
{
var utc = dateTime.Kind is DateTimeKind.Utc ? dateTime : dateTime.ToUniversalTime();
return utc.ToString("O", CultureInfo.InvariantCulture);
}
private static DateTime ParseUtc(string value)
{
return DateTime.TryParse(value, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind, out var dateTime)
? dateTime.ToUniversalTime()
: DateTime.UnixEpoch;
}
private static EmbeddingStateSearchResult ToSearchResult(EmbeddingStateSearchResultEntity result) => new(
result.ChunkId,
result.ParentFileId,
result.DataSourceId,
result.DataSourceName,
result.DataSourceType,
result.AbsolutePath,
result.FileName,
result.RelativePath,
result.FileType,
result.PageNumber,
result.ChunkIndex,
result.ChunkText,
result.Score,
result.Fingerprint,
result.FileSize,
result.CreationUtc,
result.LastWriteUtc,
result.EmbeddedAtUtc,
result.ChunkCount,
result.ComplianceLevel,
result.ComplianceLevelRank);
private static string BuildFtsQuery(string query)
{

View File

@ -32,27 +32,43 @@
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},
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@ -86,12 +102,12 @@
},
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"SQLitePCLRaw.config.e_sqlite3": "3.0.5"
}
},
"BuildBundlerMinifier": {
@ -163,25 +179,105 @@
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