JetMigrationDatabaseLock.cs

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System;
using System.Data.Common;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Storage;

namespace EntityFrameworkCore.Jet.Migrations.Internal;

/// <summary>
///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
///     the same compatibility standards as public APIs. It may be changed or removed without notice in
///     any release. You should only use it directly in your code with extreme caution and knowing that
///     doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
public class JetMigrationDatabaseLock(
    IRelationalCommand releaseLockCommand,
    RelationalCommandParameterObject relationalCommandParameters,
    IHistoryRepository historyRepository,
    CancellationToken cancellationToken = default)
    : IMigrationsDatabaseLock
{
    /// <summary>
    ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
    ///     the same compatibility standards as public APIs. It may be changed or removed without notice in
    ///     any release. You should only use it directly in your code with extreme caution and knowing that
    ///     doing so can result in application failures when updating to a new Entity Framework Core release.
    /// </summary>
    public virtual IHistoryRepository HistoryRepository => historyRepository;

    /// <summary>
    ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
    ///     the same compatibility standards as public APIs. It may be changed or removed without notice in
    ///     any release. You should only use it directly in your code with extreme caution and knowing that
    ///     doing so can result in application failures when updating to a new Entity Framework Core release.
    /// </summary>
    public void Dispose()
    {
        try
        {
            releaseLockCommand.ExecuteScalar(relationalCommandParameters);
        }
        catch (DbException e)
        {
            if (!e.Message.Contains("cannot find the input table")) throw;
        }
    }

    /// <summary>
    ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
    ///     the same compatibility standards as public APIs. It may be changed or removed without notice in
    ///     any release. You should only use it directly in your code with extreme caution and knowing that
    ///     doing so can result in application failures when updating to a new Entity Framework Core release.
    /// </summary>
    public async ValueTask DisposeAsync()
    {
        try
        {
            await releaseLockCommand.ExecuteScalarAsync(relationalCommandParameters, cancellationToken);
        }
        catch (DbException e)
        {
            if (!e.Message.Contains("cannot find the input table")) throw;
        }
    }
}