internal async Task <ExecutionResult> ExecuteAsync(T input, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
_logger.RequestingLock();
await LockStrategy.RequestLockAsync(cancellationToken);
_logger.Executing();
using var context = new ChainContext(Name, _serviceProvider, cancellationToken);
try
{
context.EventBroker.Publish(new ChainExecutionStartedEvent(context));
var startTickCount = Environment.TickCount64;
var result = await ExecuteRootConnector(input, context);
var duration = TimeSpan.FromMilliseconds(Environment.TickCount64 - startTickCount);
LogResult(result);
if (result is { Status : ExecutionResultStatus.Faulted, Exception : {} })
{
await context.EventBroker.PublishAsync(new ChainExceptionEvent(context, result.Exception));
}
context.EventBroker.Publish(new ChainExecutionResultEvent(context, duration, result));
LockStrategy.ReleaseLock();
return(result);
}
internal async Task <ExecutionResult> ExecuteAsync(T input, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
_logger.RequestingLock();
await LockStrategy.RequestLockAsync(cancellationToken);
_logger.Executing();
using var context = new ChainContext(Name, _serviceProvider, cancellationToken);
try
{
context.EventBroker.Publish(new ChainExecutionStartedEvent(context));
var startTickCount = Environment.TickCount64;
await _root.ProcessAsync(input, context);
var duration = TimeSpan.FromMilliseconds(Environment.TickCount64 - startTickCount);
if (context.Result == ExecutionResult.Unknown)
{
context.SetResult(ExecutionResult.Completed);
}
else if (context.Exception is { } exception)
{
await context.EventBroker.PublishAsync(new ChainExceptionEvent(context, exception));
}
context.EventBroker.Publish(new ChainExecutionResultEvent(context, duration, context.Result,
context.ResultReason, context.Exception));
LockStrategy.ReleaseLock();
}
catch (Exception e)
{
try
{
_logger.LogCritical(e, "Critical failure");
}
finally
{
Environment.Exit(2013);
}
}
return(context.Result);
}
protected abstract ValueTask <TOutput> Invoke(TInput input, ChainContext context);
ValueTask <TOutput> ILink <TInput, TOutput> .Invoke(TInput input, ChainContext context) => Invoke(input, context);
protected abstract ValueTask <TOutput> ExecuteAsync(TInput input, ChainContext context);
ValueTask <TOutput> ILink <TInput, TOutput> .ExecuteAsync(TInput input, ChainContext context) => ExecuteAsync(input, context);
