public static Dictionary <Guid, IQueuedHandler> CreateCoreWorkers(
StandardComponents standardComponents,
ProjectionsStandardComponents projectionsStandardComponents)
{
var coreTimeoutSchedulers =
CreateTimeoutSchedulers(projectionsStandardComponents.ProjectionWorkerThreadCount);
var coreQueues = new Dictionary <Guid, IQueuedHandler>();
while (coreQueues.Count < projectionsStandardComponents.ProjectionWorkerThreadCount)
{
var coreInputBus = new InMemoryBus("bus");
var coreQueue = QueuedHandler.CreateQueuedHandler(coreInputBus,
"Projection Core #" + coreQueues.Count,
groupName: "Projection Core");
var workerId = Guid.NewGuid();
var projectionNode = new ProjectionWorkerNode(
workerId,
standardComponents.Db,
coreQueue,
standardComponents.TimeProvider,
coreTimeoutSchedulers[coreQueues.Count],
projectionsStandardComponents.RunProjections);
projectionNode.SetupMessaging(coreInputBus);
var forwarder = new RequestResponseQueueForwarder(
inputQueue: coreQueue,
externalRequestQueue: standardComponents.MainQueue);
// forwarded messages
var coreOutput = projectionNode.CoreOutput;
coreOutput.Subscribe <ClientMessage.ReadEvent>(forwarder);
coreOutput.Subscribe <ClientMessage.ReadStreamEventsBackward>(forwarder);
coreOutput.Subscribe <ClientMessage.ReadStreamEventsForward>(forwarder);
coreOutput.Subscribe <ClientMessage.ReadAllEventsForward>(forwarder);
coreOutput.Subscribe <ClientMessage.WriteEvents>(forwarder);
coreOutput.Subscribe <ClientMessage.DeleteStream>(forwarder);
if (projectionsStandardComponents.RunProjections >= ProjectionType.System)
{
var slaveProjectionResponseWriter = projectionNode.SlaveProjectionResponseWriter;
coreOutput.Subscribe <PartitionMeasuredOutput>(slaveProjectionResponseWriter);
coreOutput.Subscribe <PartitionProcessingProgressOutput>(slaveProjectionResponseWriter);
coreOutput.Subscribe <PartitionProcessingResultOutput>(slaveProjectionResponseWriter);
coreOutput.Subscribe <ReaderSubscriptionManagement.SpoolStreamReading>(slaveProjectionResponseWriter);
coreOutput.Subscribe(
Forwarder.Create <AwakeServiceMessage.SubscribeAwake>(standardComponents.MainQueue));
coreOutput.Subscribe(
Forwarder.Create <AwakeServiceMessage.UnsubscribeAwake>(standardComponents.MainQueue));
}
coreOutput.Subscribe <TimerMessage.Schedule>(standardComponents.TimerService);
coreOutput.Subscribe(Forwarder.Create <Message>(coreQueue)); // forward all
coreInputBus.Subscribe(new UnwrapEnvelopeHandler());
coreQueues.Add(workerId, coreQueue);
}
var queues = coreQueues.Select(v => v.Value).Cast <IPublisher>().ToArray();
var coordinator = new ProjectionCoreCoordinator(
projectionsStandardComponents.RunProjections,
coreTimeoutSchedulers,
queues,
projectionsStandardComponents.MasterOutputBus,
new PublishEnvelope(projectionsStandardComponents.MasterInputQueue, crossThread: true));
coordinator.SetupMessaging(projectionsStandardComponents.MasterMainBus);
projectionsStandardComponents.MasterMainBus.Subscribe(
Forwarder.CreateBalancing <FeedReaderMessage.ReadPage>(coreQueues.Values.Cast <IPublisher>().ToArray()));
return(coreQueues);
}
private void SetupMessaging(
TFChunkDb db, QueuedHandler mainQueue, ISubscriber mainBus, TimerService timerService, ITimeProvider timeProvider,
IHttpForwarder httpForwarder, HttpService[] httpServices, IPublisher networkSendQueue, RunProjections runProjections)
{
_coreQueues = new List <QueuedHandler>();
_managerInputBus = new InMemoryBus("manager input bus");
_managerInputQueue = new QueuedHandler(_managerInputBus, "Projections Master");
while (_coreQueues.Count < _projectionWorkerThreadCount)
{
var coreInputBus = new InMemoryBus("bus");
var coreQueue = new QueuedHandler(
coreInputBus, "Projection Core #" + _coreQueues.Count, groupName: "Projection Core");
var projectionNode = new ProjectionWorkerNode(db, coreQueue, timeProvider, runProjections);
projectionNode.SetupMessaging(coreInputBus);
var forwarder = new RequestResponseQueueForwarder(
inputQueue: coreQueue, externalRequestQueue: mainQueue);
// forwarded messages
projectionNode.CoreOutput.Subscribe <ClientMessage.ReadEvent>(forwarder);
projectionNode.CoreOutput.Subscribe <ClientMessage.ReadStreamEventsBackward>(forwarder);
projectionNode.CoreOutput.Subscribe <ClientMessage.ReadStreamEventsForward>(forwarder);
projectionNode.CoreOutput.Subscribe <ClientMessage.ReadAllEventsForward>(forwarder);
projectionNode.CoreOutput.Subscribe <ClientMessage.WriteEvents>(forwarder);
if (runProjections >= RunProjections.System)
{
projectionNode.CoreOutput.Subscribe(
Forwarder.Create <CoreProjectionManagementMessage.StateReport>(_managerInputQueue));
projectionNode.CoreOutput.Subscribe(
Forwarder.Create <CoreProjectionManagementMessage.ResultReport>(_managerInputQueue));
projectionNode.CoreOutput.Subscribe(
Forwarder.Create <CoreProjectionManagementMessage.StatisticsReport>(_managerInputQueue));
projectionNode.CoreOutput.Subscribe(
Forwarder.Create <CoreProjectionManagementMessage.Started>(_managerInputQueue));
projectionNode.CoreOutput.Subscribe(
Forwarder.Create <CoreProjectionManagementMessage.Stopped>(_managerInputQueue));
projectionNode.CoreOutput.Subscribe(
Forwarder.Create <CoreProjectionManagementMessage.Faulted>(_managerInputQueue));
projectionNode.CoreOutput.Subscribe(
Forwarder.Create <CoreProjectionManagementMessage.Prepared>(_managerInputQueue));
projectionNode.CoreOutput.Subscribe(
Forwarder.Create <CoreProjectionManagementMessage.SlaveProjectionReaderAssigned>(
_managerInputQueue));
projectionNode.CoreOutput.Subscribe(
Forwarder.Create <ProjectionManagementMessage.ControlMessage>(_managerInputQueue));
}
projectionNode.CoreOutput.Subscribe <TimerMessage.Schedule>(timerService);
projectionNode.CoreOutput.Subscribe(Forwarder.Create <Message>(coreQueue)); // forward all
coreInputBus.Subscribe(new UnwrapEnvelopeHandler());
_coreQueues.Add(coreQueue);
}
_managerInputBus.Subscribe(
Forwarder.CreateBalancing <FeedReaderMessage.ReadPage>(_coreQueues.Cast <IPublisher>().ToArray()));
_projectionManagerNode = ProjectionManagerNode.Create(
db, _managerInputQueue, httpForwarder, httpServices, networkSendQueue,
_coreQueues.Cast <IPublisher>().ToArray(), runProjections);
_projectionManagerNode.SetupMessaging(_managerInputBus);
{
var forwarder = new RequestResponseQueueForwarder(
inputQueue: _managerInputQueue, externalRequestQueue: mainQueue);
_projectionManagerNode.Output.Subscribe <ClientMessage.ReadEvent>(forwarder);
_projectionManagerNode.Output.Subscribe <ClientMessage.ReadStreamEventsBackward>(forwarder);
_projectionManagerNode.Output.Subscribe <ClientMessage.ReadStreamEventsForward>(forwarder);
_projectionManagerNode.Output.Subscribe <ClientMessage.WriteEvents>(forwarder);
_projectionManagerNode.Output.Subscribe(
Forwarder.Create <ProjectionManagementMessage.RequestSystemProjections>(mainQueue));
_projectionManagerNode.Output.Subscribe(Forwarder.Create <Message>(_managerInputQueue));
_projectionManagerNode.Output.Subscribe <TimerMessage.Schedule>(timerService);
// self forward all
mainBus.Subscribe(Forwarder.Create <SystemMessage.StateChangeMessage>(_managerInputQueue));
_managerInputBus.Subscribe(new UnwrapEnvelopeHandler());
}
}
