protected async Task CommandAsync(Func <Task> command)
{
ThrowExceptionIfNotConnected();
Task tempTask = null;
try
{
await CommandOrRequestPolicy.ExecuteAsync(async() =>
{
tempTask = command.Invoke();
listOfCommandsOrRequestTasks.Add(tempTask);
await tempTask;
}
, _ctKillCommandsRequested
);
}
finally
{
if (tempTask != null)
{
listOfCommandsOrRequestTasks.Remove(tempTask);
}
}
}
private void ConfigureStateMachineAndTryBot()
{
_sm = new StateMachineNonBlockingProcessing <State, Trigger>(State.InitalNotConnected);
_sm.Configure(State.InitalNotConnected)
.Permit(Trigger.ConnectRequested, State.TryingToConnect);
_sm.Configure(State.TryingToConnect)
.OnEntry(() => {
_sm.ProcessInsideAsync(async() =>
{
try
{
_connectTask = DoConnectAsync();
await _connectTask;
_sm.FireWithNoLock(Trigger.ConnectAttemptSucceeded);
_connectDoneWait.Set();
}
catch
{
_ctsConnectedFailed.Cancel();
_connectDoneWait.Set();
_sm.FireWithNoLock(Trigger.ConnectAttemptFailed);
}
});
Console.WriteLine($"Entered State {nameof(State.TryingToConnect)}");
}
)
.Permit(Trigger.ConnectAttemptSucceeded, State.Connected)
.Permit(Trigger.ConnectAttemptFailed, State.TryingToReconnect);
_sm.Configure(State.TryingToReconnect)
.OnEntry(() =>
{
_sm.ProcessInsideAsync(async() =>
{
try
{
_connectDoneWait.Reset();
_reconnectDoneWait.Reset();
await ReconnectPolicy.ExecuteAsync(async() => await DoReconnectAsync());
_sm.FireWithNoLock(Trigger.ConnectAttemptSucceeded);
_connectDoneWait.Set();
_reconnectDoneWait.Set();
}
catch (Exception ex)
{
//** FatalW
}
});
Console.WriteLine($"Entered State {nameof(State.TryingToReconnect)}");
})
.Permit(Trigger.ConnectAttemptSucceeded, State.Connected)
.Permit(Trigger.CloseRequested, State.Closing);
_sm.Configure(State.Connected)
.Permit(Trigger.ErrorOccurred, State.ErrorEncounteredRetrying)
.Permit(Trigger.CloseRequested, State.Closing);
_sm.Configure(State.ErrorEncounteredRetrying)
.Ignore(Trigger.ErrorOccurred)
.Permit(Trigger.CloseRequested, State.Closing)
.Permit(Trigger.ErrorWasRecoveredFrom, State.Connected)
.Permit(Trigger.ErrorWasUnrecoverable, State.TryingToReconnect);
_sm.Configure(State.Closing)
.OnEntry(() =>
{
DoCloseAsync();
_sm.FireWithNoLock(Trigger.CloseCompleted);
_closeDoneWait.Set();
})
.Permit(Trigger.CloseCompleted, State.Closed);
ReconnectPolicy = new BotPolicy(policy =>
policy.Configure(config => config
.Retry(retryConfig => retryConfig
.WhenExceptionOccurs(exception => exception is DeviceConnectionException)
.RetryIndefinitely())
));
const int retryLimit = 5;
CommandOrRequestPolicy = new BotPolicy(policy =>
policy.Configure(config => config
.Retry(retryConfig => retryConfig
.WhenExceptionOccurs(exception => exception is DeviceConnectionException)
.WithMaxAttemptCount(retryLimit)
.OnRetry((ex, context) =>
{
//_ctKillCommandsRequested.ThrowIfCancellationRequested();
_sm.FireWithNoLock(Trigger.ErrorOccurred);
})
.OnRetrySucceeded((context) =>
{
_sm.FireIfPermittedNoLock(Trigger.ErrorWasRecoveredFrom);
})
)
.Fallback(fallbackConfig => fallbackConfig
.WhenExceptionOccurs((exception) => exception is Trybot.Retry.Exceptions.MaxRetryAttemptsReachedException)
.OnFallback((exception, executionContext) =>
{
CancelAllCommandsAndWait().Wait();
_sm.FireWithNoLock(Trigger.ErrorWasUnrecoverable);
void ThrowException()
{
throw new DeviceConnectionException($"Retry Count of {retryLimit} Exceeded", exception);
}
ThrowException();
}))
));
}
/// <summary> /// Executes an action asynchronously within the bot policy and returns with its result. /// </summary> /// <param name="policy">The policy.</param> /// <param name="operation">The asynchronous operation to execute.</param> /// <param name="token">Tha cancellation token.</param> /// <returns>The task to await.</returns> public static Task <TResult> ExecuteAsync <TResult>(this IBotPolicy <TResult> policy, Func <ExecutionContext, CancellationToken, Task <TResult> > operation, CancellationToken token = default) => policy.ExecuteAsync(new AsyncBotOperation <TResult>(operation), Guid.NewGuid(), token);
/// <summary> /// Executes an action asynchronously within the bot policy. /// </summary> /// <param name="policy">The policy.</param> /// <param name="operation">The asynchronous operation to execute.</param> /// <param name="token">Tha cancellation token.</param> /// <returns>The task to await.</returns> public static Task ExecuteAsync(this IBotPolicy policy, Func <Task> operation, CancellationToken token = default) => policy.ExecuteAsync(new AsyncParameterlessBotOperation(operation), Guid.NewGuid(), token);
/// <summary> /// Executes an action asynchronously within the bot policy. /// </summary> /// <param name="policy">The policy.</param> /// <param name="action">The action to execute.</param> /// <param name="token">Tha cancellation token.</param> /// <returns>The task to await.</returns> public static Task ExecuteAsync(this IBotPolicy policy, Action <ExecutionContext, CancellationToken> action, CancellationToken token = default) => policy.ExecuteAsync(new AsyncBotOperation(action), Guid.NewGuid(), token);
/// <summary>
/// Executes an action asynchronously within the bot policy and returns with its result.
/// </summary>
/// <param name="policy">The policy.</param>
/// <param name="operation">The asynchronous operation to execute.</param>
/// <param name="correlationId">The correlation id.</param>
/// <param name="token">Tha cancellation token.</param>
/// <returns>The task to await.</returns>
public static Task <TResult> ExecuteAsync <TResult>(this IBotPolicy <TResult> policy, Func <ExecutionContext, CancellationToken, Task <TResult> > operation,
object correlationId, CancellationToken token = default) =>
policy.ExecuteAsync(new AsyncBotOperation <TResult>(operation), correlationId, token);
/// <summary>
/// Executes an action asynchronously within the bot policy.
/// </summary>
/// <param name="policy">The policy.</param>
/// <param name="action">The action to execute.</param>
/// <param name="correlationId">The correlation id.</param>
/// <param name="token">Tha cancellation token.</param>
/// <returns>The task to await.</returns>
public static Task ExecuteAsync(this IBotPolicy policy, Action <ExecutionContext, CancellationToken> action,
object correlationId, CancellationToken token = default) =>
policy.ExecuteAsync(new AsyncBotOperation(action), correlationId, token);
/// <summary>
/// Executes an action asynchronously within the bot policy and returns with its result.
/// </summary>
/// <param name="policy">The policy.</param>
/// <param name="operation">The asynchronous operation to execute.</param>
/// <param name="correlationId">The correlation id.</param>
/// <param name="token">Tha cancellation token.</param>
/// <returns>The task to await.</returns>
public static Task <TResult> ExecuteAsync <TResult>(this IBotPolicy <TResult> policy, Func <TResult> operation,
object correlationId, CancellationToken token = default) =>
policy.ExecuteAsync(new AsyncParameterlessBotOperation <TResult>(operation), correlationId, token);
/// <summary>
/// Executes an action asynchronously within the bot policy.
/// </summary>
/// <param name="policy">The policy.</param>
/// <param name="action">The action to execute.</param>
/// <param name="correlationId">The correlation id.</param>
/// <param name="token">Tha cancellation token.</param>
/// <returns>The task to await.</returns>
public static Task ExecuteAsync(this IBotPolicy policy, Action action,
object correlationId, CancellationToken token = default) =>
policy.ExecuteAsync(new AsyncParameterlessBotOperation(action), correlationId, token);