internal TaskActivityDispatcher(
IOrchestrationService orchestrationService,
INameVersionObjectManager <TaskActivity> objectManager,
DispatchMiddlewarePipeline dispatchPipeline,
LogHelper logHelper)
{
this.orchestrationService = orchestrationService ?? throw new ArgumentNullException(nameof(orchestrationService));
this.objectManager = objectManager ?? throw new ArgumentNullException(nameof(objectManager));
this.dispatchPipeline = dispatchPipeline ?? throw new ArgumentNullException(nameof(dispatchPipeline));
this.logHelper = logHelper;
this.dispatcher = new WorkItemDispatcher <TaskActivityWorkItem>(
"TaskActivityDispatcher",
item => item.Id,
this.OnFetchWorkItemAsync,
this.OnProcessWorkItemAsync)
{
AbortWorkItem = orchestrationService.AbandonTaskActivityWorkItemAsync,
GetDelayInSecondsAfterOnFetchException = orchestrationService.GetDelayInSecondsAfterOnFetchException,
GetDelayInSecondsAfterOnProcessException = orchestrationService.GetDelayInSecondsAfterOnProcessException,
DispatcherCount = orchestrationService.TaskActivityDispatcherCount,
MaxConcurrentWorkItems = orchestrationService.MaxConcurrentTaskActivityWorkItems,
LogHelper = logHelper,
};
}
internal TaskOrchestrationDispatcher(
IOrchestrationService orchestrationService,
INameVersionObjectManager <TaskOrchestration> objectManager,
DispatchMiddlewarePipeline dispatchPipeline)
{
this.objectManager = objectManager ?? throw new ArgumentNullException(nameof(objectManager));
this.orchestrationService = orchestrationService ?? throw new ArgumentNullException(nameof(orchestrationService));
this.dispatchPipeline = dispatchPipeline ?? throw new ArgumentNullException(nameof(dispatchPipeline));
this.dispatcher = new WorkItemDispatcher <TaskOrchestrationWorkItem>(
"TaskOrchestrationDispatcher",
item => item == null ? string.Empty : item.InstanceId,
OnFetchWorkItemAsync,
OnProcessWorkItemSessionAsync)
{
GetDelayInSecondsAfterOnFetchException = orchestrationService.GetDelayInSecondsAfterOnFetchException,
GetDelayInSecondsAfterOnProcessException = orchestrationService.GetDelayInSecondsAfterOnProcessException,
SafeReleaseWorkItem = orchestrationService.ReleaseTaskOrchestrationWorkItemAsync,
AbortWorkItem = orchestrationService.AbandonTaskOrchestrationWorkItemAsync,
DispatcherCount = orchestrationService.TaskOrchestrationDispatcherCount,
MaxConcurrentWorkItems = orchestrationService.MaxConcurrentTaskOrchestrationWorkItems
};
// To avoid starvation, we only allow half of all concurrently execution orchestrations to
// leverage extended sessions.
var maxConcurrentSessions = (int)Math.Ceiling(this.dispatcher.MaxConcurrentWorkItems / 2.0);
this.concurrentSessionLock = new NonBlockingCountdownLock(maxConcurrentSessions);
}
internal TaskOrchestrationDispatcher(
IOrchestrationService orchestrationService,
INameVersionObjectManager <TaskOrchestration> objectManager,
DispatchMiddlewarePipeline dispatchPipeline)
{
this.objectManager = objectManager ?? throw new ArgumentNullException(nameof(objectManager));
this.orchestrationService = orchestrationService ?? throw new ArgumentNullException(nameof(orchestrationService));
this.dispatchPipeline = dispatchPipeline ?? throw new ArgumentNullException(nameof(dispatchPipeline));
this.dispatcher = new WorkItemDispatcher <TaskOrchestrationWorkItem>(
"TaskOrchestrationDispatcher",
item => item == null ? string.Empty : item.InstanceId,
this.OnFetchWorkItemAsync,
this.OnProcessWorkItemAsync)
{
GetDelayInSecondsAfterOnFetchException = orchestrationService.GetDelayInSecondsAfterOnFetchException,
GetDelayInSecondsAfterOnProcessException = orchestrationService.GetDelayInSecondsAfterOnProcessException,
SafeReleaseWorkItem = orchestrationService.ReleaseTaskOrchestrationWorkItemAsync,
AbortWorkItem = orchestrationService.AbandonTaskOrchestrationWorkItemAsync,
DispatcherCount = orchestrationService.TaskOrchestrationDispatcherCount,
MaxConcurrentWorkItems = orchestrationService.MaxConcurrentTaskOrchestrationWorkItems
};
}