private void Connection_Notification(object sender, NpgsqlNotificationEventArgs e)
{
try
{
if (e.Condition == "events" || e.Condition == "aggregate_roots")
{
TraceSource.TraceEvent(TraceEventType.Verbose, 5137, "Postgres notification: {0} with {1}", e.Condition, e.AdditionalInformation);
var firstSeparator = e.AdditionalInformation.IndexOf(':');
var name = e.AdditionalInformation.Substring(0, firstSeparator);
var secondSeparator = e.AdditionalInformation.Substring(firstSeparator + 1).IndexOf(':');
var op = e.AdditionalInformation.Substring(firstSeparator + 1, secondSeparator).Trim();
var array = e.AdditionalInformation.Substring(firstSeparator + secondSeparator + 2).Trim();
if (array.Length > 0)
{
var uris = StringConverter.ParseCollection(Reader.Reuse(array), 0, false).ToArray();
switch (op)
{
case "Update":
Subject.OnNext(new NotifyInfo(name, NotifyInfo.OperationEnum.Update, NotifyInfo.SourceEnum.Database, uris));
break;
case "Change":
Subject.OnNext(new NotifyInfo(name, NotifyInfo.OperationEnum.Change, NotifyInfo.SourceEnum.Database, uris));
break;
case "Delete":
Subject.OnNext(new NotifyInfo(name, NotifyInfo.OperationEnum.Delete, NotifyInfo.SourceEnum.Database, uris));
break;
default:
Subject.OnNext(new NotifyInfo(name, NotifyInfo.OperationEnum.Insert, NotifyInfo.SourceEnum.Database, uris));
break;
}
}
}
else if (e.Condition == "migration")
{
TraceSource.TraceEvent(TraceEventType.Information, 5155, "Postgres migration detected: {0} ", e.AdditionalInformation);
SystemState.Notify(new SystemEvent("migration", e.AdditionalInformation));
}
}
catch (Exception ex)
{
TraceSource.TraceEvent(TraceEventType.Error, 5138, "{0}{1} {2}", e.Condition, e.AdditionalInformation, ex);
}
}