public ProjectionsSubsystem(ProjectionSubsystemOptions projectionSubsystemOptions)
{
if (projectionSubsystemOptions.RunProjections <= ProjectionType.System)
{
_projectionWorkerThreadCount = 1;
}
else
{
_projectionWorkerThreadCount = projectionSubsystemOptions.ProjectionWorkerThreadCount;
}
_runProjections = projectionSubsystemOptions.RunProjections;
// Projection manager & Projection Core Coordinator
// The manager only starts when projections are running
_componentCount = _runProjections == ProjectionType.None ? 1 : 2;
// Projection manager & each projection core worker
_dispatcherCount = 1 + _projectionWorkerThreadCount;
_startStandardProjections = projectionSubsystemOptions.StartStandardProjections;
_projectionsQueryExpiry = projectionSubsystemOptions.ProjectionQueryExpiry;
_faultOutOfOrderProjections = projectionSubsystemOptions.FaultOutOfOrderProjections;
_leaderMainBus = new InMemoryBus("manager input bus");
_subsystemInitialized = 0;
_projectionRuntime = projectionSubsystemOptions.Runtime;
_executionTimeout = projectionSubsystemOptions.ExecutionTimeout;
_compilationTimeout = projectionSubsystemOptions.CompilationTimeout;
}
public ProjectionsStandardComponents(
int projectionWorkerThreadCount,
ProjectionType runProjections,
IBus leaderOutputBus,
IQueuedHandler leaderInputQueue,
IBus leaderMainBus,
bool faultOutOfOrderProjections, JavascriptProjectionRuntime projectionRuntime, int projectionCompilationTimeout, int projectionExecutionTimeout)
{
ProjectionWorkerThreadCount = projectionWorkerThreadCount;
RunProjections = runProjections;
LeaderOutputBus = leaderOutputBus;
LeaderInputQueue = leaderInputQueue;
LeaderMainBus = leaderMainBus;
FaultOutOfOrderProjections = faultOutOfOrderProjections;
ProjectionRuntime = projectionRuntime;
ProjectionCompilationTimeout = projectionCompilationTimeout;
ProjectionExecutionTimeout = projectionExecutionTimeout;
}
public ProjectionStateHandlerFactory(TimeSpan javascriptCompilationTimeout, TimeSpan javascriptExecutionTimeout, JavascriptProjectionRuntime runtime)
{
_jsFactory = runtime switch {
JavascriptProjectionRuntime.Legacy => (source, logger, cancelCallbackFactory, enableContentTypeValidation) =>
new DefaultV8ProjectionStateHandler(source, logger, cancelCallbackFactory, enableContentTypeValidation),
JavascriptProjectionRuntime.Interpreted => (source, _, _, enableContentTypeValidation) =>
new JintProjectionStateHandler(source, enableContentTypeValidation, javascriptCompilationTimeout, javascriptExecutionTimeout),
_ => throw new ArgumentOutOfRangeException(nameof(runtime), runtime, "Unknown javascript projection runtime")
};
}
