/// <inheritdoc/>
public override async Task Open(OpenTunnel request, IServerStreamWriter <CommittedEventStreamWithContext> responseStream, ServerCallContext context)
{
try
{
using (var tunnel = new QuantumTunnel(_serializer, responseStream, _logger, context.CancellationToken))
{
var application = request.Application.To <Dolittle.Applications.Application>();
var boundedContext = request.BoundedContext.To <BoundedContext>();
var events = request
.Events
.Select(@event => @event.ToArtifact())
.ToArray();
var tenantOffsets = request.Offsets.ToTenantOffsets();
var subscription = new EventParticleSubscription(events);
_logger.Information($"Opening up a quantum tunnel for bounded context '{boundedContext}' in application '{application}'");
var singularity = new Singularity(application, boundedContext, tunnel, subscription);
_eventHorizon.GravitateTowards(singularity, tenantOffsets);
tunnel.Collapsed += _ => _eventHorizon.Collapse(singularity);
await tunnel.Open(request.Offsets.ToTenantOffsets()).ConfigureAwait(false);
_logger.Information($"Quantum tunnel collapsed for bounded context '{boundedContext}' in application '{application}'");
}
}
catch (Exception ex)
{
_logger.Error(ex, "Problems opening tunnel");
}
await Task.CompletedTask.ConfigureAwait(false);
}
/// <summary>
/// Initializes a new instance of <see cref="Singularity"/>
/// </summary>
/// <param name="application"><see cref="Application">Application</see> representing the singularity</param>
/// <param name="boundedContext"><see cref="BoundedContext"/> representing the bounded context of the singularity</param>
/// <param name="tunnel"><see cref="IQuantumTunnel"/> used to pass through to <see cref="Singularity"/></param>
/// <param name="subscription"><see cref="EventParticleSubscription"/></param>
public Singularity(
Application application,
BoundedContext boundedContext,
IQuantumTunnel tunnel,
EventParticleSubscription subscription)
{
_subscription = subscription;
_tunnel = tunnel;
Application = application;
BoundedContext = boundedContext;
}