private static string CreateStatusJson(TableDependencyStatuses tableDependencyStatuses, DateTimeOffset when)
{
var status = new VersionedTableDependencyStatus(tableDependencyStatuses, when);
var message = JsonConvert.SerializeObject(status);
return(message);
}
private async Task PublishStatus(VersionedTableDependencyStatus versionedTableDependencyStatus)
{
string jsonStatusVersion = Serialize(versionedTableDependencyStatus);
await redisPublisher.SetStringAsync(StatusChannelName, jsonStatusVersion);
await redisPublisher.PublishAsync(StatusChannelName, jsonStatusVersion);
}
private string CreateStatusJson(TableDependencyStatuses tableDependencyStatuses)
{
var status = new VersionedTableDependencyStatus(tableDependencyStatuses, DateTimeOffset.Now);
var jsonStatus = JsonConvert.SerializeObject(status);
return(jsonStatus);
}
private void SubscribeToConnectionChanged()
{
redisSubscriber.WhenIsConnectedChanges
.Subscribe(isConnected =>
{
if (isConnected)
{
SubscribeToStatusChanges();
}
else
{
statusChangesSubscription.Disposable = Disposable.Empty;
lastStatus = new VersionedTableDependencyStatus(VersionedTableDependencyStatus.TableDependencyStatuses.None, DateTimeOffset.MinValue);
reactiveData.Publish(lastStatus);
}
})
.DisposeWith(CompositeDisposable);
}
private void SubscribeToStatusChanges()
{
var statusMessagesSource = CreateStatusChangedSource();
var pullStatusMessageSource = Observable.Defer(() => redisSubscriber.GetStringAsync(StatusChannelName).ToObservable(schedulersFactory.ThreadPool));
statusChangesSubscription.Disposable =
statusMessagesSource
.Merge(pullStatusMessageSource)
.Where(c => !string.IsNullOrEmpty(c))
.Select(DeserializeVersionedTableDependencyStatus)
.Subscribe(status =>
{
if (lastStatus == null || status.Timestamp == DateTimeOffset.MinValue || lastStatus.Timestamp < status.Timestamp)
{
lastStatus = status;
reactiveData.Publish(lastStatus);
}
});
}
protected async Task OnSqlTableDependencyStatusChanged(TableDependencyStatus status)
{
statusVersion = new VersionedTableDependencyStatus(status.Convert(), DateTimeOffset.Now);
await PublishStatus(statusVersion);
}
public void Publish(VersionedTableDependencyStatus status)
{
whenStatusChanges.OnNext(status);
}
