/// <summary>
/// Initializes a new instance of <see cref="EventHandler"/>.
/// </summary>
/// <param name="streamProcessors">The <see cref="IStreamProcessors" />.</param>
/// <param name="filterValidationForAllTenants">The <see cref="IValidateFilterForAllTenants" /> for validating the filter definition.</param>
/// <param name="streamDefinitions">The<see cref="IStreamDefinitions" />.</param>
/// <param name="arguments">Connecting arguments.</param>
/// <param name="filterProcessorForTenant"></param>
/// <param name="eventProcessorForTenant">The event processor.</param>
/// <param name="acceptRegistration">Accepts the event handler registration.</param>
/// <param name="rejectRegistration">Rejects the event handler registration.</param>
/// <param name="logger">Logger for logging.</param>
/// <param name="executionContext">The execution context for the event handler.</param>
/// <param name="cancellationToken">Cancellation token that can cancel the hierarchy.</param>
public EventHandler(
IStreamProcessors streamProcessors,
IValidateFilterForAllTenants filterValidationForAllTenants,
IStreamDefinitions streamDefinitions,
EventHandlerRegistrationArguments arguments,
Func <TenantId, IFilterProcessor <TypeFilterWithEventSourcePartitionDefinition> > filterProcessorForTenant,
Func <TenantId, IEventProcessor> eventProcessorForTenant,
Func <CancellationToken, Task> acceptRegistration,
Func <Failure, CancellationToken, Task> rejectRegistration,
ILogger logger,
ExecutionContext executionContext,
CancellationToken cancellationToken)
{
_logger = logger;
_streamProcessors = streamProcessors;
_filterValidator = filterValidationForAllTenants;
_streamDefinitions = streamDefinitions;
_arguments = arguments;
_filterProcessorForTenant = filterProcessorForTenant;
_executionContext = executionContext;
_eventProcessorForTenant = eventProcessorForTenant;
_acceptRegistration = acceptRegistration;
_rejectRegistration = rejectRegistration;
_cancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
}
/// <inheritdoc />
public IEventHandler Create(EventHandlerRegistrationArguments arguments, ReverseCallDispatcher dispatcher, CancellationToken cancellationToken)
=> new EventHandler(
_streamProcessors,
_filterValidator,
_streamDefinitions,
arguments,
tenant => new TypeFilterWithEventSourcePartition(
arguments.Scope,
new TypeFilterWithEventSourcePartitionDefinition(StreamId.EventLog, arguments.EventHandler.Value, arguments.EventTypes, arguments.Partitioned),
_getEventsToStreamsWriter(tenant),
_loggerFactory.CreateLogger <TypeFilterWithEventSourcePartition>()),
_ => new EventProcessor(arguments.Scope, arguments.EventHandler, dispatcher, _loggerFactory.CreateLogger <EventProcessor>()),
cancellation => dispatcher.Accept(new EventHandlerRegistrationResponse(), cancellation),
(failure, cancellation) => dispatcher.Reject(new EventHandlerRegistrationResponse {
Failure = failure.ToProtobuf()
}, cancellation),
_loggerFactory.CreateLogger <EventHandler>(),
arguments.ExecutionContext,
cancellationToken
);
/// <inheritdoc /> public FastEventHandler CreateFast(EventHandlerRegistrationArguments arguments, bool implicitFilter, ReverseCallDispatcher dispatcher, CancellationToken cancellationToken) => new(
