问Azure持久函数:我是否正确使用了`!orchestrationContext.IsReplaying`？

EN

[FunctionName(FUNC_NAME_ORCH)]
public static async Task<string> RunPlayerYouTubeOrchestration(
    [OrchestrationTrigger] DurableOrchestrationContext orchestrationContext,
    ILogger log)
{
    log?.LogInformation($"{FUNC_NAME_ORCH}: {nameof(RunPlayerYouTubeOrchestration)} invoked...");
    log?.LogInformation($"{FUNC_NAME_ORCH}: {nameof(DurableOrchestrationContextBase.InstanceId)} {orchestrationContex

    log?.LogInformation($"{FUNC_NAME_ORCH}: calling {FUNC_NAME_ORCH_FUNC0}.c ..");
    var jsonBlobs = await orchestrationContext
        .CallActivityAsync<IEnumerable<string>>(FUNC_NAME_ORCH_FUNC0, null);

    if ((jsonBlobs == null) || !jsonBlobs.Any())
    {
        var errorMessage = $"{FUNC_NAME_ORCH}: The expected JSON blobs from `{FUNC_NAME_ORCH_FUNC0}` are not here.";
        log?.LogError(errorMessage);
        throw new NullReferenceException(errorMessage);
    }

    if (!orchestrationContext.IsReplaying)
    {
        var tasks = jsonBlobs.Select(json =>
            {
                log?.LogInformation($"{FUNC_NAME_ORCH}: calling {FUNC_NAME_ORCH_FUNC1}...");
                return orchestrationContext.CallActivityAsync(FUNC_NAME_ORCH_FUNC1, json);
            });

        log?.LogInformation($"{FUNC_NAME_ORCH}: fan-out starting...");
        await Task.WhenAll(tasks);
    }

    log?.LogInformation($"{FUNC_NAME_ORCH}: fan-out complete.");

    log?.LogInformation($"{FUNC_NAME_ORCH}: calling {FUNC_NAME_ORCH_FUNC2}...");
    await orchestrationContext.CallActivityAsync(FUNC_NAME_ORCH_FUNC2, null);

    return orchestrationContext.InstanceId;
}