Develop Reference

The type initializer for 'Google.OrTools.ConstraintSolver.operations_research_constraint_solverPINVOKE' threw an exception

I have a google routing web service. it works in a local run project.
but when I upload it on the host I get this error message:
The type initializer for
'Google.OrTools.ConstraintSolver.operations_research_constraint_solverPINVOKE'
threw an exception.
notes
1-I use vs 2019
2- I set enable-32-bit-application to false in my Plesk host panel
3- I build my project in 64 bit
4- I installed google.ortool by the package manager download
my code is :
static List<int> PrintSolution(in RoutingModel routing, in RoutingIndexManager manager, in Assignment solution, ref bool HasErr, ref string ErrMsg)
{
List<int> orderIndex = new List<int>();
try
{
long routeDistance = 0;
var index = routing.Start(0);
while (routing.IsEnd(index) == false)
{
orderIndex.Add((int)index);
var previousIndex = index;
index = solution.Value(routing.NextVar(index));
routeDistance += routing.GetArcCostForVehicle(previousIndex, index, 0);
}
}
catch (Exception e)
{
HasErr = true;
ErrMsg = "GetIndexOrderLocations " + e.Message;
orderIndex = null;
}
return orderIndex;
}
public static List<int> GetIndexOrderLocations(/String[] args/long[,] DistanceMatrix, ref bool HasErr, ref string ErrMsg)
{
RoutingModel routing = null;
RoutingIndexManager manager = null;
Assignment solution = null;
List<int> Result = new List<int>();
try
{
// Instantiate the data problem.
DataModel data = new DataModel();
// Create Routing Index Manager
manager = new RoutingIndexManager(/ data./ DistanceMatrix.GetLength(0), data.VehicleNumber, data.Depot);
// Create Routing Model.
routing = new RoutingModel(manager);
int transitCallbackIndex = routing.RegisterTransitCallback((long fromIndex, long toIndex) => {
// Convert from routing variable Index to distance matrix NodeIndex.
var fromNode = manager.IndexToNode(fromIndex);
var toNode = manager.IndexToNode(toIndex);
return/* data.*/DistanceMatrix[fromNode, toNode];
});
// Define cost of each arc.
routing.SetArcCostEvaluatorOfAllVehicles(transitCallbackIndex);
// Setting first solution heuristic.
RoutingSearchParameters searchParameters =
operations_research_constraint_solver.DefaultRoutingSearchParameters();
searchParameters.FirstSolutionStrategy = FirstSolutionStrategy.Types.Value.PathCheapestArc;
// Solve the problem.
solution = routing.SolveWithParameters(searchParameters);
if (routing == null || manager == null || solution == null)
return null;
Result = PrintSolution(routing, manager, solution, ref HasErr, ref ErrMsg);
}
catch (Exception e)
{
HasErr = true;
ErrMsg = "GetIndexOrderLocations " + e.Message;
}
// Print solution on console.
return Result;
}
Why I get this error?

C# WUApiLib know if a windows update needs a restart

I use this code to get pending windows updates and also most of the informations of the update:
static List<PendingUpdate> GetPendingUpdates()
{
var updateSession = new UpdateSession();
var updateSearcher = updateSession.CreateUpdateSearcher();
updateSearcher.Online = false; //set to true if you want to search online
List<PendingUpdate> pendingUpdates = new List<PendingUpdate>();
try
{
var searchResult = updateSearcher.Search("IsInstalled=0 And IsHidden=0");
if (searchResult.Updates.Count > 0)
{
Console.WriteLine("There are updates available for installation");
foreach (IUpdate windowsUpdate in searchResult.Updates)
{
PendingUpdate update = new PendingUpdate();
update.Title = windowsUpdate.Title;
update.Description = windowsUpdate.Description;
update.Downloaded = windowsUpdate.IsDownloaded;
update.Urls = new List<string>();
foreach (string url in windowsUpdate.MoreInfoUrls)
{
update.Urls.Add(url);
}
foreach (dynamic category in windowsUpdate.Categories)
{
update.Categories += category.Name + ", ";
}
pendingUpdates.Add(update);
}
}
}
catch (Exception ex)
{
Console.WriteLine("ERROR");
throw ex;
}
return pendingUpdates;
}
I also use this code to get to know if the computer currently needs a restart to finish installed updates:
static bool needsRestart()
{
ISystemInformation systemInfo = new SystemInformation();
return systemInfo.RebootRequired;
}
Now my question is, is it possible to get to know if an pending update needs a computer restart to finish? In the first code I get a IUpdate object but I dont see informations about a needed restart after installing this update. I there a way to get this information?

For the asynchronous installation I use something like this:
rebootRequired = false;
UpdateSession updateSession = new UpdateSession();
updateSession.ClientApplicationID = SusClientID;
IUpdateInstaller updatesInstaller = updateSession.CreateUpdateInstaller();
IInstallationJob job = updatesInstaller.BeginInstall(InstallProgressCallback, installComplete, installState);
// here is your installer code and the checking if the installation is completed
IInstallationProgress jobProgress = job.GetProgress();
for (int updateindex = 0; updateindex < updatesInstaller.Updates.Count; updateindex++)
{
IUpdateInstallationResult updateInstallResult = jobProgress.GetUpdateResult(updateindex);
rebootRequired |= updateInstallResult.RebootRequired;
}
if(rebootRequired)
{
// any of the updates need a reboot
}

Bloomberg web service call for single field and single instrument taking more than 1 min

I am making a Bloomberg web service GetData call for the "DEBT_TO_EQUITY_FUNDAMENTALS_TKR" field. I am setting secmaster = true and asking for a single instrument with a CUSIP identifier (with yellowkey = MarketSector.Corp).
This strikes me as a fairly lightweight call having seen people asking for thousands of instruments and dozens of fields at once.
I have played around with setting lots of different settings but I just can't get this request to return in a few seconds. It gives me the correct return value but it takes longer than 60 seconds.
Any idea if it is possible to get such a request to execute and return in a few seconds?
Thanks
EDIT - Here is the code I am running:
public string GetFundamentalTicker(string identifier, InstrumentType identifierType = InstrumentType.CUSIP)
{
PerSecurityWS ps = new PerSecurityWS();
try
{
log.DebugFormat("Cert path is: {0}", CertPath);
X509Certificate2 clientCert = new X509Certificate2(CertPath, "<password_redacted>");
ps.ClientCertificates.Add(clientCert);
}
catch (Exception e)
{
log.ErrorFormat("Error in cert setup - {0} - {1}", e.Message, e.InnerException == null ? "" : e.InnerException.Message);
return null;
}
//Set request header
GetDataHeaders getDataHeaders = new GetDataHeaders();
getDataHeaders.secmaster = true;
getDataHeaders.secmasterSpecified = true;
//getDataHeaders.fundamentals = true;
//getDataHeaders.fundamentalsSpecified = true;
//getDataHeaders.programflag = ProgramFlag.oneshot;//unnecessary - defaults to this anyway
//getDataHeaders.programflagSpecified = true;
//getDataHeaders.pricing = true;
getDataHeaders.secid = identifierType;
getDataHeaders.secidSpecified = true;
SubmitGetDataRequest sbmtGtDtreq = new SubmitGetDataRequest();
sbmtGtDtreq.headers = getDataHeaders;
sbmtGtDtreq.fields = new string[] {
"DEBT_TO_EQUITY_FUNDAMENTALS_TKR"
};
int currentFundYear = DateTime.Now.Year;
//var fundYears = new List<int>();
List<Instrument> fundYearInstruments = new List<Instrument>();
Instrument fundYearInstrument = null;
fundYearInstrument = new Instrument();
fundYearInstrument.id = identifier;
fundYearInstrument.typeSpecified = true;
fundYearInstrument.type = identifierType;
fundYearInstrument.yellowkey = MarketSector.Corp;
fundYearInstrument.yellowkeySpecified = true;
//fundYearInstrument.overrides = new Override[] {};//{ new Override() { field = "EQY_FUND_YEAR", value = currentFundYear.ToString() } };
fundYearInstruments.Add(fundYearInstrument);
//fundYears.Add(-1);
Instrument[] instr = fundYearInstruments.ToArray();
Instruments instrs = new Instruments();
instrs.instrument = instr;
sbmtGtDtreq.instruments = instrs;
try
{
SubmitGetDataResponse sbmtGtDtResp = ps.submitGetDataRequest(sbmtGtDtreq);
RetrieveGetDataRequest rtrvGtDrReq = new RetrieveGetDataRequest();
rtrvGtDrReq.responseId = sbmtGtDtResp.responseId;
RetrieveGetDataResponse rtrvGtDrResp;
do
{
System.Threading.Thread.Sleep(POLL_INTERVAL);
rtrvGtDrResp = ps.retrieveGetDataResponse(rtrvGtDrReq);
}
while (rtrvGtDrResp.statusCode.code == DATA_NOT_AVAILABLE);
if (rtrvGtDrResp.statusCode.code == SUCCESS)
{
for (int i = 0; i < rtrvGtDrResp.instrumentDatas.Length; i++)
{
for (int j = 0; j < rtrvGtDrResp.instrumentDatas[i].data.Length; j++)
{
if (rtrvGtDrResp.instrumentDatas[i].data[j].value == "N.A." || rtrvGtDrResp.instrumentDatas[i].data[j].value == "N.S." || rtrvGtDrResp.instrumentDatas[i].data[j].value == "N.D.")
rtrvGtDrResp.instrumentDatas[i].data[j].value = null;
return rtrvGtDrResp.instrumentDatas[i].data[j].value;
}
}
return null;
}
else if (rtrvGtDrResp.statusCode.code == REQUEST_ERROR)
{
log.ErrorFormat("Error in the submitted request: {0}", rtrvGtDrResp.statusCode.description);
return null;
}
}
catch (Exception e)
{
log.ErrorFormat("Error in GetData - {0} - {1}", e.Message, e.InnerException == null ? "" : e.InnerException.Message);
return null;
}
return null;
}
Poll interval is 5 seconds and the SOAP web service url is:
https://software.bloomberg.com/datalicensewp/dlws.wsdl

I am having the same issue. I found out that there is a difference between making the same call to Bloomberg API from, for example, console app (works very fast) and web service (takes a lot of time to start session). And the difference is that console app runs under the same user as bbcomm process, whereas web service (or actually iis process) runs under System account. You can try to log out all users on the PC where web service is hosted and then try to make the call. In this case, I guess, bbcomm goes under System account as no one else is logged in and works fast. It worked for me and the call was answered instantly.

Linq Entity Exception not printing error

I am LINQ to input information from a Database. I have my try.catch block set up to catch these exceptions. However I believe I ran into a sore spot where I am attempting to see what the message is but it just bypass printing the message to me and goes directly to error page. Here is an example of the code I have so far. I would love to get some input on why this seems to be acting so strange.
private void CreateEntry()
{
var date = DateTime.Today;
var version = (from v in house.StayLateVersions
where v.Active
select v).FirstOrDefault();
if (version == null)
{
throw new NullReferenceException();
}
//Try to create an entry for the database. Upon failure, sends the exception to ThrowDbError();
try
{
ResidenceHallInspection rhi = new ResidenceHallInspection();
rhi.versionId = version.id;
rhi.submitDate = DateTime.Now;
rhi.CheckInOrOut = ddlCheck.SelectedItem.Text;
rhi.Id = txtId.Text;
rhi.FirstName = txtFirstName.Text;
rhi.MiddleName = txtMiddleName.Text;
rhi.LastName = txtLastName.Text;
rhi.Walls = chbxWalls.SelectedItem.Text;
rhi.Windows = chbxWindows.SelectedItem.Text;
rhi.Blinds = chbxBlinds.SelectedItem.Text;
rhi.Couch = chbxCouch.SelectedItem.Text;
rhi.CommonRoomCouch = chbxCRCouch.SelectedItem.Text;
rhi.CommonRoomChair = chbxCRChair.SelectedItem.Text;
rhi.Doors = chbxDoors.SelectedItem.Text;
rhi.Carpet = chbxCarpet.SelectedItem.Text;
rhi.Ceiling = chbxCeiling.SelectedItem.Text;
rhi.CommonRoomCounter = chbxCRCounter.SelectedItem.Text;
rhi.Cabinet = chbxCabinet.SelectedItem.Text;
rhi.Phone = chbxPhone.SelectedItem.Text;
rhi.Bed = chbxBed.SelectedItem.Text;
rhi.Desk = chbxDesk.SelectedItem.Text;
rhi.DeskChairs = chbxDeskChair.SelectedItem.Text;
rhi.Tub = chbxTub.SelectedItem.Text;
rhi.Vanity = chbxVanity.SelectedItem.Text;
rhi.Notes = txtNotes.Text;
rhi.Building = txtResHall.Text;
rhi.ApartmentNumber = txtSuitNo.Text;
rhi.BedSpace = txtBedSpace.Text;
house.AddToResidenceHallInspections(rhi);
house.SaveChanges();
}
catch (Exception oe)
{
ThrowDbError(oe);
Response.Write(oe.InnerException);
}
}
/*=================================================*/
/*Possible Errors */
/*=================================================*/
private void ThrowDbError(Exception oe)
{
Response.Write(oe.Source);
house.Dispose();
Session.Contents.Add("FormException", oe);
Response.Redirect("/Database-Error/", true);
}

The most likely reason for that to happen is that you are running the database version query outside the try/catch block. Any exception in this db access code will not be handled by the code you have shown above.
Try extending your try block to also include the db access code:
var version = (from v in house.StayLateVersions
where v.Active
select v).FirstOrDefault();
if (version == null)
{
throw new NullReferenceException();
}
and see if this time the error is caught.

How to pass variables to an SSIS package from a C# application

Basically i am trying to build an application that uses SSIS to run a series of sql stuff.
Here is my code thus far:
public JsonResult FireSSIS()
{
string x = string.Empty;
try
{
Application app = new Application();
Package package = null;
package = app.LoadPackage(#"C:\ft\Package.dtsx", null);
Microsoft.SqlServer.Dts.Runtime.DTSExecResult results = package.Execute();
if (results == Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure)
{
foreach (Microsoft.SqlServer.Dts.Runtime.DtsError local_DtsError in package.Errors)
{
x += string.Concat("Package Execution results: {0}", local_DtsError.Description.ToString());
}
}
}
catch (DtsException ex)
{
// Exception = ex.Message;
}
return Json(x, JsonRequestBehavior.AllowGet);
}
Does anybody know how to pass a variable to the package itself in this way?

You need to use the Package.Variables property.
Package package = null;
package = app.LoadPackage(#"C:\ft\Package.dtsx", null);
package.Variables["User::varParam"].Value = "param value";

Try that:
Microsoft.SqlServer.Dts.RunTime.Variables myVars = package.Variables;
myVars["MyVariable1"].Value = "value1";
myVars["MyVariable2"].Value = "value2";
Microsoft.SqlServer.Dts.Runtime.DTSExecResult results = package.Execute(null, myVars, null, null, null);