/// <summary>
/// Create a <see cref="HostedActivityService"/> instance for processing Bot Framework Activities\
/// on background threads.
/// </summary>
/// <param name="config"><see cref="IConfiguration"/> used to retrieve ShutdownTimeoutSeconds from appsettings.</param>
/// <param name="bot">IBot which will be used to process Activities.</param>
/// <param name="adapter"><see cref="ImmediateAcceptAdapter"/> used to process Activities. </param>
/// <param name="activityTaskQueue"><see cref="IActivityTaskQueue"/>Queue of activities to be processed. This class
/// contains a semaphore which the BackgroundService waits on to be notified of activities to be processed.</param>
/// <param name="logger">Logger to use for logging BackgroundService processing and exception information.</param>
public HostedActivityService(IConfiguration config, IBot bot, ImmediateAcceptAdapter adapter, IActivityTaskQueue activityTaskQueue, ILogger <HostedTaskService> logger)
{
if (config == null)
{
throw new ArgumentNullException(nameof(config));
}
if (bot == null)
{
throw new ArgumentNullException(nameof(bot));
}
if (adapter == null)
{
throw new ArgumentNullException(nameof(adapter));
}
if (activityTaskQueue == null)
{
throw new ArgumentNullException(nameof(activityTaskQueue));
}
_shutdownTimeoutSeconds = config.GetValue <int>("ShutdownTimeoutSeconds");
_activityQueue = activityTaskQueue;
_bot = bot;
_adapter = adapter;
_logger = logger ?? NullLogger <HostedTaskService> .Instance;
}
/// <summary>
/// Create an instance of <see cref="ImmediateAcceptAdapter"/>.
/// </summary>
/// <param name="configuration"></param>
/// <param name="logger"></param>
/// <param name="activityTaskQueue"></param>
public ImmediateAcceptAdapter(IConfiguration configuration, ILogger <BotFrameworkHttpAdapter> logger, IActivityTaskQueue activityTaskQueue)
: base(configuration, logger)
{
_activityTaskQueue = activityTaskQueue;
OnTurnError = async(turnContext, exception) =>
{
// Log any leaked exception from the application.
logger.LogError(exception, $"[OnTurnError] unhandled error : {exception.Message}");
// Send a message to the user
await turnContext.SendActivityAsync("The bot encountered an error or bug.");
await turnContext.SendActivityAsync("To continue to run this bot, please fix the bot source code.");
// Send a trace activity, which will be displayed in the Bot Framework Emulator
await turnContext.TraceActivityAsync("OnTurnError Trace", exception.Message, "https://www.botframework.com/schemas/error", "TurnError");
};
}
