/
InteractiveHost.cs
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/
InteractiveHost.cs
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// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Hosting.Server;
using Microsoft.AspNetCore.Hosting.Server.Features;
using Microsoft.AspNetCore.Routing;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
namespace Microsoft.DotNet.Interactive.AspNetCore;
internal class InteractiveHost : IAsyncDisposable, IDisposable
{
private readonly IHost _host;
private readonly Startup _startup;
private readonly InteractiveLoggerProvider _interactiveLoggerProvider;
public InteractiveHost(InteractiveLoggerProvider interactiveLoggerProvider)
{
_interactiveLoggerProvider = interactiveLoggerProvider;
_startup = new Startup();
Environment.SetEnvironmentVariable($"ASPNETCORE_{WebHostDefaults.PreventHostingStartupKey}", "true");
var hostBuilder = Host.CreateDefaultBuilder()
.ConfigureWebHostDefaults(webBuilder => webBuilder
.ConfigureKestrel(kestrelOptions => kestrelOptions.Listen(IPAddress.Loopback, 0))
.UseStartup(_ => _startup))
.ConfigureLogging(loggingBuilder => loggingBuilder
.SetMinimumLevel(LogLevel.Trace)
.ClearProviders()
.AddProvider(_interactiveLoggerProvider));
_host = hostBuilder.Build();
}
public string Address { get; private set; }
public IApplicationBuilder App => _startup?.App;
public IEndpointRouteBuilder Endpoints => _startup?.Endpoints;
public async Task StartAsync()
{
await _host.StartAsync().ConfigureAwait(false);
var kestrelServer = _host.Services.GetRequiredService<IServer>();
Address = kestrelServer.Features.Get<IServerAddressesFeature>().Addresses.First();
}
public ValueTask DisposeAsync()
{
if (_host is IAsyncDisposable asyncDisposableHost)
{
return asyncDisposableHost.DisposeAsync();
}
_host.Dispose();
return default;
}
public void Dispose()
{
_host.Dispose();
}
}