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using System;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Server.Implementations;
using MediaBrowser.Common.Configuration;
using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
namespace Jellyfin.Database.Providers.SqLite;
/// <summary>
/// Configures jellyfin to use an SQLite database.
/// </summary>
[JellyfinDatabaseProviderKey("Jellyfin-SQLite")]
public sealed class SqliteDatabaseProvider : IJellyfinDatabaseProvider
{
private readonly IApplicationPaths _applicationPaths;
private readonly ILogger<SqliteDatabaseProvider> _logger;
/// <summary>
/// Initializes a new instance of the <see cref="SqliteDatabaseProvider"/> class.
/// </summary>
/// <param name="applicationPaths">Service to construct the fallback when the old data path configuration is used.</param>
/// <param name="logger">A logger.</param>
public SqliteDatabaseProvider(IApplicationPaths applicationPaths, ILogger<SqliteDatabaseProvider> logger)
{
_applicationPaths = applicationPaths;
_logger = logger;
}
/// <inheritdoc/>
public IDbContextFactory<JellyfinDbContext>? DbContextFactory { get; set; }
/// <inheritdoc/>
public void Initialise(DbContextOptionsBuilder options)
{
options.UseSqlite(
$"Filename={Path.Combine(_applicationPaths.DataPath, "jellyfin.db")};Pooling=false",
sqLiteOptions => sqLiteOptions.MigrationsAssembly(GetType().Assembly));
}
/// <inheritdoc/>
public async Task RunScheduledOptimisation(CancellationToken cancellationToken)
{
var context = await DbContextFactory!.CreateDbContextAsync(cancellationToken).ConfigureAwait(false);
await using (context.ConfigureAwait(false))
{
if (context.Database.IsSqlite())
{
await context.Database.ExecuteSqlRawAsync("PRAGMA optimize", cancellationToken).ConfigureAwait(false);
await context.Database.ExecuteSqlRawAsync("VACUUM", cancellationToken).ConfigureAwait(false);
_logger.LogInformation("jellyfin.db optimized successfully!");
}
else
{
_logger.LogInformation("This database doesn't support optimization");
}
}
}
/// <inheritdoc/>
public void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.SetDefaultDateTimeKind(DateTimeKind.Utc);
}
/// <inheritdoc/>
public async Task RunShutdownTask(CancellationToken cancellationToken)
{
// Run before disposing the application
var context = await DbContextFactory!.CreateDbContextAsync(cancellationToken).ConfigureAwait(false);
await using (context.ConfigureAwait(false))
{
await context.Database.ExecuteSqlRawAsync("PRAGMA optimize", cancellationToken).ConfigureAwait(false);
}
SqliteConnection.ClearAllPools();
}
/// <inheritdoc/>
public void ConfigureConventions(ModelConfigurationBuilder configurationBuilder)
{
configurationBuilder.Conventions.Add(_ => new DoNotUseReturningClauseConvention());
}
}
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