/// <summary>
/// method to get backend entity
/// </summary>
/// <param name="backendid">takes backend id as input</param>
/// <returns>returns backend entity</returns>
public BackendEntity Getbackend(string backendid)
{
RequestUpdateDAL requestupdatedal = new RequestUpdateDAL();
//calling dal method to get backend entity to be updated
BackendEntity backend = requestupdatedal.GetBackend(backendid);
return(backend);
}
/// <summary>
/// method to caliculate average sizes and latencies to update in userbackend
/// </summary>
/// <param name="BackendId">takes backendid as input</param>
/// <param name="Totalrequestssize">takes totalrequestsize as input</param>
/// <param name="TotalRequestlatency">takes total request latency as input</param>
/// <param name="requestscount">takes request count as input</param>
public void UpdateBackend(BackendEntity backend, int Totalrequestssize, int TotalRequestlatency, int requestscount)
{
//Get Caller Method name
string callerMethodName = string.Empty;
try
{
//Get Caller Method name from CallerInformation class
callerMethodName = CallerInformation.TrackCallerMethodName();
//if request count more than one.
if (requestscount > 0)
{
//updating average, last request sizes for backend
backend.AverageRequestSize = GetAverage(backend.AverageRequestSize, backend.TotalRequestsCount, Totalrequestssize, requestscount);
backend.LastRequestSize = Convert.ToInt32(Totalrequestssize / requestscount);
//updating average, last request latencies for backend
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:caliculate backend tracking variables, existing AverageRequestLatency:" + backend.AverageRequestLatency + " TotalRequestsLatency: " + TotalRequestlatency + " requsetcount: " + requestscount);
backend.AverageRequestLatency = GetAverage(backend.AverageRequestLatency, backend.TotalRequestsCount, TotalRequestlatency, requestscount);
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:caliculate backend tracking variables, current AverageRequestLatency:" + backend.AverageRequestLatency);
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:caliculate backend tracking variables, existing AverageALLRequestLatency:" + backend.AverageAllRequestsLatency + " TotalBatchRequestsCount: " + backend.TotalBatchRequestsCount + " TotalRequestsLatency: " + TotalRequestlatency + " requsetcount: " + requestscount);
backend.AverageAllRequestsLatency = GetAverage(backend.AverageAllRequestsLatency, backend.TotalBatchRequestsCount, TotalRequestlatency, requestscount);
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:caliculate backend tracking variables, current AverageAllRequestsLatency:" + backend.AverageAllRequestsLatency);
backend.LastRequestLatency = Convert.ToInt32(TotalRequestlatency / requestscount);
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:caliculate backend tracking variables, current LastRequestLatency:" + backend.LastRequestLatency);
backend.LastAllRequestsLatency = TotalRequestlatency;
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:caliculate backend tracking variables, current LastAllRequestsLatency:" + backend.LastAllRequestsLatency);
//updaing total requests per userbackend and total request batches/messages per userbackend
backend.TotalRequestsCount = backend.TotalRequestsCount + requestscount;
backend.TotalBatchRequestsCount = backend.TotalBatchRequestsCount + 1;
}
//calling DAL method to update backend entity
RequestUpdateDAL requestupdatedal = new RequestUpdateDAL();
requestupdatedal.UpdateBackend(backend);
}
catch (DataAccessException DALexception)
{
throw DALexception;
}
catch (Exception exception)
{
//write exception into application insights
InsightLogger.Exception(exception.Message + " - Error in BL while updating backend", exception, callerMethodName);
throw new BusinessLogicException();
}
}
/// <summary>
/// method to update backend
/// </summary>
/// <param name="backend">takes backend entity as input</param>
public void UpdateBackend(BackendEntity backend)
{
//Get Caller Method name
string callerMethodName = string.Empty;
try
{
//Get Caller Method name from CallerInformation class
callerMethodName = CallerInformation.TrackCallerMethodName();
//call dataprovider method to update entity to azure table
DataProvider.UpdateEntity <BackendEntity>(CoreConstants.AzureTables.ReferenceData, backend);
}
catch (Exception exception)
{
//write exception into application insights
InsightLogger.Exception(exception.Message + " - Error while updating backend to azure table in DAL", exception, callerMethodName);
throw new DataAccessException();
}
}
/// <summary>
/// method to get backend entity
/// </summary>
/// <param name="backendid">tackes backendId as input</param>
/// <returns>returns backend entity</returns>
public BackendEntity GetBackend(string backendid)
{
//Get Caller Method name
string callerMethodName = string.Empty;
try
{
//Get Caller Method name from CallerInformation class
callerMethodName = CallerInformation.TrackCallerMethodName();
//call dataprovider method to retrieve entity from azure table
BackendEntity backend = DataProvider.Retrieveentity <BackendEntity>(CoreConstants.AzureTables.ReferenceData, CoreConstants.AzureTables.BackendPK, backendid);
return(backend);
}
catch (Exception exception)
{
//write exception into application insights
InsightLogger.Exception(exception.Message + " - Error while getting backend from azure table in DAL", exception, callerMethodName);
throw new DataAccessException();
}
}
/// <summary>
/// update Next CollectingTime of the backend which missed updates
/// </summary>
/// <param name="backendID"></param>
/// <param name="missingUpdateLastCollectingTime"></param>
/// <param name="avgAllRequestsLatency"></param>
/// <param name="lastAllRequestsLatency"></param>
public void UpdateMisseduserBackendNextCollectingTime(string backendID, DateTime missingUpdateLastCollectingTime, DateTime currTimestamp)
{
string callerMethodName = string.Empty;
try
{
//Get Caller Method name from CallerInformation class
callerMethodName = CallerInformation.TrackCallerMethodName();
// Create a retrieve operation that takes a NextUserCollectingTime Entity.
NextUserCollectingTimeEntity ObjMissedUpdateNextCollectingTime = DataProvider.RetrieveEntity <NextUserCollectingTimeEntity>(azureTableReference, CoreConstants.AzureTables.UpdateTriggerNextCollectingTime, backendID);
if (ObjMissedUpdateNextCollectingTime != null)
{
//get backend details by backendid from userconfiguration
BackendEntity backendDetails = objdal.GetBackendDetailsByBackendID(backendID);
if (backendDetails != null)
{
//update Missing Update Last CollectingTime with previous Missing Update NextCollectingTime
ObjMissedUpdateNextCollectingTime.MissingUpdateLastCollectingTime = missingUpdateLastCollectingTime;
//update Missing Update NextCollectingTime based on updatetriggering Rule R5
ObjMissedUpdateNextCollectingTime.MissingUpdateNextCollectingTime = utRules.GetNextMissingCollectingTime(currTimestamp, backendDetails.AverageAllRequestsLatency, backendDetails.LastAllRequestsLatency);
// Execute update operation.
DataProvider.UpdateEntity <NextUserCollectingTimeEntity>(azureTableReference, ObjMissedUpdateNextCollectingTime);
InsightLogger.TrackEvent("UpdateTriggering, Action :: Set next missed update collecting time , Response :: Success, backend :[ " + backendID + " ]");
}
}
}
catch (BusinessLogicException balexception)
{
throw balexception;
}
catch (DataAccessException dalexception)
{
throw dalexception;
}
catch (Exception exception)
{
InsightLogger.Exception(exception.Message, exception, callerMethodName);
throw new DataAccessException(exception.Message, exception.InnerException);
}
}
// This function will get triggered/executed when a new message is written
// on an Azure Queue called RequsetUpdate.
public static void ProcessRequsetQueueMessage([QueueTrigger(CoreConstants.AzureQueues.RequsetUpdateQueue)] string message, TextWriter log)
{
//Get Caller Method name
string callerMethodName = string.Empty;
try
{
//Get Caller Method name from CallerInformation class
callerMethodName = CallerInformation.TrackCallerMethodName();
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:Reading queue message, response:succuess, message: " + message);
//deserialize Queue message to Requests
RequestsUpdateData requestsdata = JsonConvert.DeserializeObject <RequestsUpdateData>(message);
List <BackendRequest> backendrequestslist = requestsdata.Requests;
RequestUpdateBL requsetupdatebl = new RequestUpdateBL();
//get backend to get missingconfirmationlimit for backend and also to update flags
BackendEntity backend = requsetupdatebl.Getbackend(requestsdata.BackendID);
int TotalRequestsize = 0;
int TotalRequestlatency = 0;
int requestcount = backendrequestslist.Count;
//check if requests were available
if (backendrequestslist != null && backendrequestslist.Count > 0)
{
//looping through each backendrequest to add requests , approvers and fields for each requet
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:looping all requests");
foreach (BackendRequest backendrequest in backendrequestslist)
{
//split main backendrequest object into individual entities
List <Approvers> approvers = backendrequest.RequestsList.Approvers;
List <Field> genericInfoFields = backendrequest.RequestsList.Fields.GenericInfo;
List <Field> overviewFields = backendrequest.RequestsList.Fields.Overview;
Request request = backendrequest.RequestsList;
//calling BL methods to add request , approval, approvers and fields
if (!string.IsNullOrEmpty(request.UserID))
{
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:clearing request waiting flag, response:success");
requsetupdatebl.AddUpdateRequest(backendrequest, request.UserID, requestsdata.BackendID);
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:update request object, response:success, requestID:" + request.ID);
requsetupdatebl.AddUpdateApproval(approvers, request.ID, backendrequest.RequestsList.UserID, requestsdata.BackendID, backend.MissingConfirmationsLimit, request.Title);
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:update/remove/create approval object, response:success");
requsetupdatebl.AddUpdateApprovers(approvers, request.ID);
requsetupdatebl.AddUpdateFields(genericInfoFields, overviewFields, request.ID);
//caliculating request size
int requestsize = requsetupdatebl.CalculateRequestSize(backendrequest);
//caliculating total of size for all requests
TotalRequestsize = TotalRequestsize + requestsize;
//caliculating total of latency for all requests
TotalRequestlatency = TotalRequestlatency + request.Latency;
}
}
}
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:looping all requests end");
//calling BL methods to update average sizes and latencies for userbackend and backend
if (!string.IsNullOrEmpty(requestsdata.UserId))
{
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:check user or request, response:user");
requsetupdatebl.UpdateUserBackend(requestsdata.UserId, requestsdata.BackendID, TotalRequestsize, TotalRequestlatency, requestcount);
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:update userbackend tracking variables, response:success");
}
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:update backend tracking variables, response:success, backendID:" + requestsdata.BackendID);
requsetupdatebl.UpdateBackend(backend, TotalRequestsize, TotalRequestlatency, requestcount);
InsightLogger.TrackEvent("RequestUpdateWebJob :: method : requestupdate queue trigger, action:end of the method");
}
catch (DataAccessException dalexception)
{
//write message to web job dashboard logs
log.WriteLine(dalexception.Message);
}
catch (BusinessLogicException blexception)
{
//write message to web job dashboard logs
log.WriteLine(blexception.Message);
}
catch (Exception exception)
{
//write exception into application insights
InsightLogger.Exception(exception.Message + " - Error in Queue trigger while processing request", exception, callerMethodName);
log.WriteLine(exception.Message);
}
}