public Task EnqueueAsync(CronjobExecutionContext task)
{
if (task == null)
{
throw new ArgumentNullException(nameof(task));
}
_jobQueue.Enqueue(task);
_signal.Release();
return(Task.CompletedTask);
}
public async Task ExecuteAsync(CronjobExecutionContext executionContext, CancellationToken cancellationToken = default)
{
_logger.LogInformation("Executing {Cronjob}", executionContext.Cronjob);
try
{
await _executionMonitor.StartedAsync(executionContext).ConfigureAwait(false);
await executionContext.Cronjob.ExecuteAsync(cancellationToken);
await _executionMonitor.FinishedAsync(executionContext).ConfigureAwait(false);
_logger.LogInformation("Finished executing {Cronjob}", executionContext.Cronjob);
}
catch (Exception e)
{
await _executionMonitor.FailedAsync(executionContext, e).ConfigureAwait(false);
_logger.LogError(e, "Failed to execute {Cronjob}", executionContext.Cronjob);
}
finally
{
_logger.LogInformation("Finished {Cronjob}", executionContext.Cronjob);
}
}
public Task FailedAsync(CronjobExecutionContext cronjobExecutionContext, Exception exception) => Task.CompletedTask;
public Task FinishedAsync(CronjobExecutionContext cronjobExecutionContext) => Task.CompletedTask;
public static IEndpointConventionBuilder MapCronjobWebhook(this IEndpointRouteBuilder endpoints)
{
var options = endpoints.ServiceProvider.GetRequiredService <IOptions <CronjobsOptions> >().Value;
var listEndpointPattern = options.RoutePattern.TrimEnd('/');
var triggerEndpointPattern = $"{options.RoutePattern.TrimEnd('/')}/{{name:required}}";
endpoints.MapGet(listEndpointPattern, context =>
{
var providers = context.RequestServices.GetRequiredService <ICronjobWebhookProvider>();
var payload = JsonSerializer.Serialize(
providers.Cronjobs,
new JsonSerializerOptions {
PropertyNamingPolicy = JsonNamingPolicy.CamelCase
}
);
context.Response.ContentType = MediaTypeNames.Application.Json;
return(context.Response.WriteAsync(payload));
});
return(endpoints.MapPost(triggerEndpointPattern, async context =>
{
var options = context.RequestServices.GetRequiredService <IOptions <CronjobsOptions> >().Value;
if (options.IsAuthenticated)
{
var authResult = await context.RequestServices
.GetRequiredService <IAuthorizationService>()
.AuthorizeAsync(context.User, "cronjob");
if (!authResult.Succeeded)
{
context.Response.StatusCode = StatusCodes.Status401Unauthorized;
return;
}
}
if (!(context.GetRouteValue("name") is string cronjobName))
{
context.Response.StatusCode = StatusCodes.Status404NotFound;
return;
}
var logger = context.RequestServices.GetRequiredService <ILoggerFactory>().CreateLogger("CronjobWebhook");
if (!context.Request.Headers.TryGetValue("Execution-Id", out var executionId))
{
logger.LogInformation("Request to trigger {Cronjob} is denied, because it's missing Execution-Id header", cronjobName);
context.Response.StatusCode = StatusCodes.Status400BadRequest;
return;
}
ICronjob cronjob;
try
{
var factory = context.RequestServices.GetRequiredService <ICronjobFactory>();
cronjob = factory.Create(cronjobName);
}
catch (ApplicationException)
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
return;
}
logger.LogInformation("Received request to trigger {CronjobType}", cronjob.GetType().FullName);
// Cronjobs will be executed outside request context,
// So we're using endpoints.ServiceProvider, because context.RequestServices is request-scoped.
var executionContext = new CronjobExecutionContext(cronjob, executionId);
var executorQueue = context.RequestServices.GetRequiredService <ICronjobQueue>();
await executorQueue.EnqueueAsync(executionContext).ConfigureAwait(false);
context.Response.StatusCode = StatusCodes.Status202Accepted;
}));
}
