public override bool TrySetupRequestToProperResource(out RequestWebApiEventArgs args)
{
var tenantId = CountersName;
if (string.IsNullOrWhiteSpace(tenantId))
{
throw new HttpException(503, "Could not find a counter with no name");
}
Task<CounterStorage> resourceStoreTask;
bool hasDb;
try
{
hasDb = landlord.TryGetOrCreateResourceStore(tenantId, out resourceStoreTask);
}
catch (Exception e)
{
var cle = e as ConcurrentLoadTimeoutException;
string msg;
if (cle != null)
{
msg = string.Format("The counter {0} is currently being loaded, but there are too many requests waiting for database load. Please try again later, database loading continues.", tenantId);
}
else
{
msg = "Could not open database named: " + tenantId + " " + e.Message;
}
Logger.WarnException(msg, e);
throw new HttpException(503, msg, e);
}
if (hasDb)
{
try
{
if (resourceStoreTask.Wait(TimeSpan.FromSeconds(30)) == false)
{
var msg = "The counter " + tenantId +
" is currently being loaded, but after 30 seconds, this request has been aborted. Please try again later, file system loading continues.";
Logger.Warn(msg);
throw new HttpException(503, msg);
}
args = new RequestWebApiEventArgs
{
Controller = this,
IgnoreRequest = false,
TenantId = tenantId,
Counters = resourceStoreTask.Result
};
if (args.IgnoreRequest)
return false;
}
catch (Exception e)
{
var msg = "Could open counters named: " + tenantId;
Logger.WarnException(msg, e);
throw new HttpException(503, msg, e);
}
landlord.LastRecentlyUsed.AddOrUpdate(tenantId, SystemTime.UtcNow, (s, time) => SystemTime.UtcNow);
}
else
{
var msg = "Could not find a counter named: " + tenantId;
Logger.Warn(msg);
throw new HttpException(503, msg);
}
return true;
}
private void RequestManagerOnBeforeRequest(object sender, RequestWebApiEventArgs requestWebApiEventArgs)
{
if (shouldRecordRequests)
requestLog.Add(requestWebApiEventArgs.Controller.InnerRequest);
}