public void DoSemanticCheck(bool firstAttemptToCheck)
{
DataResponse data;
try
{
data = _serviceProxy.GetSemanticData();
}
catch (ServiceUnavailableException e)
{
var message = "Data service unavailable";
if (e.InnerException != null)
{
message += ": " + e.InnerException.Message;
}
_logger.Information(message);
_metricServer.ReportIsBroken();
return;
}
if (firstAttemptToCheck)
{
_metricServer.ReportInconclusive();
return;
}
var expectedTimeToGetTheSemanticMessage = TimeSpan.FromSeconds(60);
if (data == null)
{
_logger.Information("No message received, semantic message did not pass " +
$"through in the expected time ({expectedTimeToGetTheSemanticMessage})");
_metricServer.ReportIsBroken();
return;
}
if (data.MessageCreatedAt == DateTime.MinValue)
{
_metricServer.ReportIsBroken();
throw new Exception($"Received data.MessageCreatedAt as {DateTime.MinValue} which should NEVER be possible " +
"(we always send a semantic message with message created at which is datetime.now!");
}
if ((DateTime.UtcNow - data.MessageCreatedAt) > expectedTimeToGetTheSemanticMessage)
{
_metricServer.ReportIsBroken();
_logger.Information("Broken because not arrived in expected time -> MessageCreatedAt = " + data.MessageCreatedAt);
}
else
{
_metricServer.ReportIsHealthy();
}
}
