/// <summary>
/// Initializes a new instance of the <see cref="FtpCommandSelection"/> class.
/// </summary>
/// <param name="handler">The FTP command handler.</param>
/// <param name="handlerInformation">The FTP command handler information.</param>
public FtpCommandSelection(
IFtpCommandBase handler,
IFtpCommandInformation handlerInformation)
{
Handler = handler;
Information = handlerInformation;
}
/// <summary>
/// Initializes a new instance of the <see cref="FtpCommandSelection"/> class.
/// </summary>
/// <param name="handler">The FTP command handler.</param>
/// <param name="handlerInformation">The FTP command handler information.</param>
public FtpCommandSelection(
[NotNull] IFtpCommandBase handler,
[NotNull] IFtpCommandInformation handlerInformation)
{
Handler = handler;
Information = handlerInformation;
}
private FtpCommandSelection?ActivateCommandHandler(FtpCommandHandlerContext context)
{
if (!_nameToHandlerInfo.TryGetValue(context.FtpContext.Command.Name, out var handlerInfo))
{
return(null);
}
if (_commandHandlers.TryGetValue(handlerInfo.Type, out var handler))
{
return(new FtpCommandSelection(handler, handlerInfo));
}
#pragma warning disable 612
if (handlerInfo is IFtpCommandHandlerInstanceInformation handlerInstanceInfo)
#pragma warning restore 612
{
handler = handlerInstanceInfo.Instance;
}
else
{
handler = (IFtpCommandHandler)ActivatorUtilities.CreateInstance(
_serviceProvider,
handlerInfo.Type);
}
IFtpCommandInformation commandInformation = handlerInfo;
if (handlerInfo.IsExtensible && handler is IFtpCommandHandlerExtensionHost extensionHost)
{
var extensions = ActivateExtensions(context, handlerInfo).ToList();
var hostExtensions = extensions.ToDictionary(
x => x.Item2.Name,
x => Tuple.Create(x.Item1, x.Item2),
StringComparer.OrdinalIgnoreCase);
extensionHost.Extensions = hostExtensions.ToDictionary(
x => x.Key,
x => x.Value.Item1);
var argument = FtpCommand.Parse(context.FtpContext.Command.Argument);
if (hostExtensions.TryGetValue(argument.Name, out var hostExtensionDictValue))
{
commandInformation = hostExtensionDictValue.Item2;
}
}
_commandHandlers.Add(handlerInfo.Type, handler);
return(new FtpCommandSelection(handler, commandInformation));
}
