/// <summary>
/// Initializes a new instance of the <see cref="FeatCommandHandler"/> class.
/// </summary>
/// <param name="featureInfoProvider">Provider for feature information.</param>
/// <param name="commandHandlerProvider">The FTP command handler provider.</param>
public FeatCommandHandler(
IFeatureInfoProvider featureInfoProvider,
IFtpCommandHandlerProvider commandHandlerProvider)
{
_featureInfoProvider = featureInfoProvider;
_commandHandlerProvider = commandHandlerProvider;
}
/// <summary>
/// Initializes a new instance of the <see cref="ServiceFtpCommandHandlerExtensionScanner"/> class.
/// </summary>
/// <param name="commandHandlerProvider">The FTP command handler provider.</param>
/// <param name="commandHandlerExtensions">The FTP command handler extensions.</param>
/// <param name="logger">The logger.</param>
public ServiceFtpCommandHandlerExtensionScanner(
[NotNull] IFtpCommandHandlerProvider commandHandlerProvider,
[NotNull, ItemNotNull] IEnumerable <IFtpCommandHandlerExtension> commandHandlerExtensions,
[CanBeNull] ILogger <ServiceFtpCommandHandlerScanner> logger = null)
{
_extensionInformation = CreateInformation(commandHandlerProvider, commandHandlerExtensions, logger).ToList();
}
private static IEnumerable <IFtpCommandHandlerExtensionInstanceInformation> CreateInformation(
IFtpCommandHandlerProvider commandHandlerProvider,
IEnumerable <IFtpCommandHandlerExtension> commandHandlerExtensions,
ILogger?logger = null)
{
var cmdHandlers = commandHandlerProvider.CommandHandlers.ToList();
var commandHandlers = cmdHandlers.ToDictionary(x => x.Name, StringComparer.OrdinalIgnoreCase);
var commandHandlersByType = cmdHandlers.ToLookup(x => x.Type);
foreach (var handlerExtension in commandHandlerExtensions)
{
if (!commandHandlers.TryGetValue(handlerExtension.ExtensionFor, out var commandHandlerInformation))
{
logger?.LogWarning("No command handler found for ID {commandId}.", handlerExtension.ExtensionFor);
continue;
}
var matchingCommandHandlers = commandHandlersByType[commandHandlerInformation.Type];
foreach (var matchingCommandHandler in matchingCommandHandlers)
{
foreach (var extensionInformation in handlerExtension.GetInformation(matchingCommandHandler))
{
yield return(extensionInformation);
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="FeatCommandHandler"/> class.
/// </summary>
/// <param name="featureInfoProvider">Provider for feature information.</param>
/// <param name="commandHandlerProvider">The FTP command handler provider.</param>
public FeatCommandHandler(
[NotNull] IFeatureInfoProvider featureInfoProvider,
[NotNull] IFtpCommandHandlerProvider commandHandlerProvider)
{
_featureInfoProvider = featureInfoProvider;
_commandHandlerProvider = commandHandlerProvider;
}
/// <summary>
/// Initializes a new instance of the <see cref="DefaultFeatureInfoProvider"/> class.
/// </summary>
/// <param name="commandHandlerProvider">Provider for the FTP command handlers.</param>
/// <param name="extensionProvider">Provider for the FTP command handler extensions.</param>
/// <param name="hostSelector">The FTP host selector.</param>
public DefaultFeatureInfoProvider(
IFtpCommandHandlerProvider commandHandlerProvider,
IFtpCommandHandlerExtensionProvider extensionProvider,
IFtpHostSelector hostSelector)
{
_commandHandlerProvider = commandHandlerProvider;
_extensionProvider = extensionProvider;
_hostSelector = hostSelector;
}
/// <summary>
/// Initializes a new instance of the <see cref="AssemblyFtpCommandHandlerExtensionScanner"/> class.
/// </summary>
/// <param name="commandHandlerProvider">The provider for the FTP commands.</param>
/// <param name="logger">The logger.</param>
/// <param name="assemblies">The assemblies to scan for FTP command handlers.</param>
public AssemblyFtpCommandHandlerExtensionScanner(
[NotNull] IFtpCommandHandlerProvider commandHandlerProvider,
[CanBeNull] ILogger <AssemblyFtpCommandHandlerExtensionScanner> logger = null,
[NotNull, ItemNotNull] params Assembly[] assemblies)
{
var cmdHandlers = commandHandlerProvider.CommandHandlers.ToList();
_commandHandlers = cmdHandlers.ToDictionary(x => x.Name, StringComparer.OrdinalIgnoreCase);
_commandHandlersByType = cmdHandlers.ToLookup(x => x.Type);
_logger = logger;
_assemblies = assemblies;
}
/// <summary>
/// Initializes a new instance of the <see cref="DefaultFtpCommandActivator"/> class.
/// </summary>
/// <param name="serviceProvider">The service provider.</param>
/// <param name="commandHandlerProvider">The provider for FTP command handlers.</param>
/// <param name="commandHandlerExtensionProvider">The provider for FTP command handler extensions.</param>
public DefaultFtpCommandActivator(
IServiceProvider serviceProvider,
IFtpCommandHandlerProvider commandHandlerProvider,
IFtpCommandHandlerExtensionProvider commandHandlerExtensionProvider)
{
_serviceProvider = serviceProvider;
_nameToHandlerInfo = commandHandlerProvider.CommandHandlers.ToDictionary(
x => x.Name,
StringComparer.OrdinalIgnoreCase);
_hostToExtensionInfo = commandHandlerExtensionProvider.CommandHandlerExtensions.ToLookup(
x => x.ExtensionOf.Name,
StringComparer.OrdinalIgnoreCase);
}
/// <summary>
/// Initializes a new instance of the <see cref="ServiceFtpCommandHandlerExtensionScanner"/> class.
/// </summary>
/// <param name="commandHandlerProvider">The FTP command handler provider.</param>
/// <param name="commandHandlerExtensions">The FTP command handler extensions.</param>
/// <param name="logger">The logger.</param>
public ServiceFtpCommandHandlerExtensionScanner(
IFtpCommandHandlerProvider commandHandlerProvider,
IEnumerable <IFtpCommandHandlerExtension> commandHandlerExtensions,
ILogger <ServiceFtpCommandHandlerScanner>?logger = null)
{
_extensionInformation = CreateInformation(commandHandlerProvider, commandHandlerExtensions, logger).ToList();
// Write warning about obsolete functionality.
foreach (var information in _extensionInformation)
{
var message =
$"The command handler extension of type {information.Instance.GetType()}" +
$" for {information.Name} was registered via dependency injection." +
" This will not be supported in version 4.0 and is currently obsoleted." +
" Please create and register your own implementation of IFtpCommandHandlerExtensionScanner or" +
" use the AssemblyFtpCommandHandlerExtensionScanner.";
logger?.LogWarning(message);
Debug.WriteLine($"WARNING: {message}");
}
}
