Files
register-referentie/services/domain/Big.Infrastructure/OpenZaakJobPump.cs
Niek Otten 0d34d60797 feat(domain): implement the Flowable Workflow Client and ACL client (refs #6)
FlowableWorkflowClient speaks flowable-rest's REST API (Basic auth): start a
registratie process with the registrationId variable, acquire OpenZaakAanmaken
external-worker jobs and parse their registrationId, complete a job with the
zaakUrl variable — the contract verified against a live engine. AclHttpClient
POSTs the bsn to the ACL and returns the zaak URL. InMemoryRegistrationStore is
a concurrent-dictionary upsert. OpenZaakJobProcessor drains parked jobs, opening
a zaak per job and completing it, leaving failures for redelivery; OpenZaakJobPump
is the hosted polling shell that drives it on an interval (ADR-0009).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-30 17:10:21 +02:00

49 lines
1.8 KiB
C#

using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
namespace Big.Infrastructure;
/// <summary>
/// The hosted polling loop of the external-task job worker (ADR-0009): on an interval it resolves a
/// scoped <see cref="OpenZaakJobProcessor"/> and asks it to drain the parked <c>OpenZaakAanmaken</c>
/// jobs. A deliberately thin shell — all acquire/process/complete logic lives in the processor, which
/// is unit-tested; this class only owns the timer, the per-tick scope, and loop resilience.
/// </summary>
public sealed class OpenZaakJobPump(
IServiceScopeFactory scopeFactory,
FlowableOptions options,
ILogger<OpenZaakJobPump> logger) : BackgroundService
{
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
while (!stoppingToken.IsCancellationRequested)
{
try
{
using var scope = scopeFactory.CreateScope();
var processor = scope.ServiceProvider.GetRequiredService<OpenZaakJobProcessor>();
await processor.PumpOnceAsync(options.MaxJobsPerPoll, stoppingToken);
}
catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested)
{
break;
}
catch (Exception ex)
{
// A transient fault (e.g. Flowable briefly unreachable) must not kill the loop.
logger.LogError(ex, "OpenZaakAanmaken job poll failed; retrying after the poll interval.");
}
try
{
await Task.Delay(options.PollInterval, stoppingToken);
}
catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested)
{
break;
}
}
}
}