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HangFire running each job separately

I am using HangFire to run the job. I have a method that retrieve data from more than 50 sql servers.
I want to use HangFire to run each location separately by LocationID, and if 1 location fails I want that job get running again for that location after x minutes.
Also I want to see the log of the job on the HangFire Dashboard.
My job method :
public void SyncCompInfo()
{
List<Location> locations;
using (var db = new CompInfoDemoEntities())
{
locations = db.Locations.Where(x => x.IsActive).ToList();
}
foreach (var location in locations)
{
try
{
using (var _db = new CompInfoDemoEntities())
{
_log.Info("Getting CompoInfo data from location: " + location.StoreName);
_syncLogService.Add("Getting CompoInfo data from location: " + location.StoreName);
var responses = new List<CompInfoResponse>();
var compInfos = _db.IMS_CompInfo.Where(x => x.LocationId == location.Id).ToList();
using (var cnn = new SqlConnection(location.ConnectionString))
{
var sql = "select * from IMS_CompInfo;";
var sqlCmd = new SqlCommand(sql, cnn);
cnn.Open();
using (SqlDataReader rdr = sqlCmd.ExecuteReader())
{
while (rdr.Read())
{
var item = new CompInfoResponse();
item.Id = int.Parse(rdr["Id"].ToString());
item.ClientID = rdr["ClientID"].ToString();
item.LicenceID = rdr["LicenceID"].ToString();
item.POSCode = rdr["POSCode"].ToString();
item.logiPOS_Version = rdr["logiPOS_Version"].ToString();
if (rdr["LastLoginDate"] != null)
{
item.LastLoginDate = DateTime.Parse(rdr["LastLoginDate"].ToString());
}
item.ComputerName = rdr["ComputerName"].ToString();
if (rdr["BootTime"] != null)
{
item.BootTime = DateTime.Parse(rdr["BootTime"].ToString());
}
item.Domain = rdr["Domain"].ToString();
item.Manufacturer = rdr["Manufacturer"].ToString();
item.Model = rdr["Model"].ToString();
item.Memory = rdr["Memory"].ToString();
item.OS = rdr["OS"].ToString();
item.Build = rdr["Build"].ToString();
item.CPU = rdr["CPU"].ToString();
item.ProcArchitecture = rdr["ProcArchitecture"].ToString();
item.IP1 = rdr["IP1"].ToString();
item.MAC1 = rdr["MAC1"].ToString();
if (rdr["LastModifiedDate"] != null)
{
item.LastModifiedDate = DateTime.Parse(rdr["LastModifiedDate"].ToString());
}
if (rdr["Tag"] != null)
{
item.Tag = int.Parse(rdr["Tag"].ToString());
}
item.Application = rdr["Application"].ToString();
responses.Add(item);
}
}
}

What you seem to need is something like this, with a method you call upon startup, which loops other the locations and enqueues a job for each location.
I over simplified the thing (for example making the methods static),
but I guess most of the idea is there.
Have a look at Hangfire recurring tasks I guess it may be better suited to your needs than tasks fired upon application startups.
public void CalledUponStartup()
{
List<Location> locations;
using (var db = new CompInfoDemoEntities())
{
locations = db.Locations.Where(x => x.IsActive).ToList();
}
foreach (var location in locations)
{
BackgroundJob.Enqueue(() => SyncCompInfo(location.Id));
}
}
public static void SyncCompInfo(int locationId)
{
try
{
using (var _db = new CompInfoDemoEntities())
{
var location = db.Locations.FirstOrDefault(x => x.Id == locationId);
_log.Info("Getting CompoInfo data from location: " + location.StoreName);
_syncLogService.Add("Getting CompoInfo data from location: " + location.StoreName);
var responses = new List<CompInfoResponse>();
var compInfos = _db.IMS_CompInfo.Where(x => x.LocationId == location.Id).ToList();
using (var cnn = new SqlConnection(location.ConnectionString))
{
var sql = "select * from IMS_CompInfo;";
var sqlCmd = new SqlCommand(sql, cnn);
cnn.Open();
using (SqlDataReader rdr = sqlCmd.ExecuteReader())
{
while (rdr.Read())
{
var item = new CompInfoResponse();
item.Id = int.Parse(rdr["Id"].ToString());
item.ClientID = rdr["ClientID"].ToString();
item.LicenceID = rdr["LicenceID"].ToString();
item.POSCode = rdr["POSCode"].ToString();
item.logiPOS_Version = rdr["logiPOS_Version"].ToString();
if (rdr["LastLoginDate"] != null)
{
item.LastLoginDate = DateTime.Parse(rdr["LastLoginDate"].ToString());
}
item.ComputerName = rdr["ComputerName"].ToString();
if (rdr["BootTime"] != null)
{
item.BootTime = DateTime.Parse(rdr["BootTime"].ToString());
}
item.Domain = rdr["Domain"].ToString();
item.Manufacturer = rdr["Manufacturer"].ToString();
item.Model = rdr["Model"].ToString();
item.Memory = rdr["Memory"].ToString();
item.OS = rdr["OS"].ToString();
item.Build = rdr["Build"].ToString();
item.CPU = rdr["CPU"].ToString();
item.ProcArchitecture = rdr["ProcArchitecture"].ToString();
item.IP1 = rdr["IP1"].ToString();
item.MAC1 = rdr["MAC1"].ToString();
if (rdr["LastModifiedDate"] != null)
{
item.LastModifiedDate = DateTime.Parse(rdr["LastModifiedDate"].ToString());
}
if (rdr["Tag"] != null)
{
item.Tag = int.Parse(rdr["Tag"].ToString());
}
item.Application = rdr["Application"].ToString();
responses.Add(item);
}
}

CADES signature with Json data in C#

I have below json data I need to apply CAdES-BES Signature with Automatic JSON Canonicalization. Please find my json data below. Helpful link from https://www.example-code.com/Csharp/itida_egypt_cades_bes_json_canonicalization.asp. I follow the steps but still digital signature is not applying. Its returns normal json data.
[HttpGet]
[Route("api/invoiceLines/")]
public IHttpActionResult getEInvoiceLines()
{
Chilkat.Crypt2 crypt = new Chilkat.Crypt2();
crypt.VerboseLogging = true;
Chilkat.Cert cert = new Chilkat.Cert();
cert.VerboseLogging = true;
// Set the smart card PIN, which will be needed for signing.
cert.SmartCardPin = "1245345";
// There are many ways to load the certificate.
// This example was created for a customer using an ePass2003 USB token.
// Assuming the USB token is the only source of a hardware-based private key..
bool success = cert.LoadFromSmartcard(#"E"); //Is this Right way To load certificate ?
Chilkat.JsonObject cmsOptions = new Chilkat.JsonObject();
// Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used.
cmsOptions.UpdateBool("DigestData", true);
cmsOptions.UpdateBool("OmitAlgorithmIdNull", true);
// Indicate that we are passing normal JSON and we want Chilkat do automatically
// do the ITIDA JSON canonicalization:
cmsOptions.UpdateBool("CanonicalizeITIDA", true);
crypt.CmsOptions = cmsOptions.Emit();
// The CadesEnabled property applies to all methods that create CMS/PKCS7 signatures.
// To create a CAdES-BES signature, set this property equal to true.
crypt.CadesEnabled = true;
crypt.HashAlgorithm = "sha256";
Chilkat.JsonObject jsonSigningAttrs = new Chilkat.JsonObject();
jsonSigningAttrs.UpdateInt("contentType", 1);
jsonSigningAttrs.UpdateInt("signingTime", 1);
jsonSigningAttrs.UpdateInt("messageDigest", 1);
jsonSigningAttrs.UpdateInt("signingCertificateV2", 1);
crypt.SigningAttributes = jsonSigningAttrs.Emit();
// By default, all the certs in the chain of authentication are included in the signature.
// If desired, we can choose to only include the signing certificate:
crypt.IncludeCertChain = false;
EInvoiceModel.Example ds = new EInvoiceModel.Example();
//Start issuer details
ds.issuer = new EInvoiceModel.Issuer();
ds.issuer.type = "B";
ds.issuer.id = "113317713";
ds.issuer.name = "Issuer Company";
//Start issuer address details
ds.issuer.address = new EInvoiceModel.Address();
ds.issuer.address.branchID = "1";
ds.issuer.address.country = "EG";
ds.issuer.address.governate = "Cairo";
ds.issuer.address.regionCity = "Nasr City";
ds.issuer.address.street = "stree1";
ds.issuer.address.buildingNumber = "Bldg. 0";
ds.issuer.address.postalCode = "68030";
ds.issuer.address.floor = "1";
ds.issuer.address.room = "123";
ds.issuer.address.landmark = "7660 Melody Trail";
ds.issuer.address.additionalInformation = "beside Town Hall";
//Start Receiver details
ds.receiver = new EInvoiceModel.Receiver();
ds.receiver.type = "B";
ds.receiver.id = "3125617";
ds.receiver.name = "Receiver company";
//Start Receiver address datails
ds.receiver.address = new EInvoiceModel.AddressReceiver();
ds.receiver.address.country = "EG";
ds.receiver.address.governate = "Cairo";
ds.receiver.address.regionCity = "Nasr City";
ds.receiver.address.street = "stree1";
ds.receiver.address.buildingNumber = "Bldg. 0";
ds.receiver.address.postalCode = "68030";
ds.receiver.address.floor = "1";
ds.receiver.address.room = "123";
ds.receiver.address.landmark = "7660 Melody Trail";
ds.receiver.address.additionalInformation = "beside Town Hall";
//Document type & version
ds.documentType = "i";
ds.documentTypeVersion = "1.0";
DateTime d = new DateTime();
ds.dateTimeIssued = d; //Invoice date
ds.taxpayerActivityCode = "9478"; //needed info
ds.internalID = "WADIn1234"; //Internal Invoice number
ds.salesOrderReference = "So1234"; //So number //optional
ds.salesOrderDescription = "SO1234"; //So additional Info //optional
ds.proformaInvoiceNumber = "SoPro123"; //optional
//Invoiceline Start
ds.invoiceLines = new List<EInvoiceModel.InvoiceLine>
{
new EInvoiceModel.InvoiceLine
{
description = "Computer1",
itemType = "GPC",
itemCode = "10001774",
unitType = "EA",
quantity = 2,
internalCode = "IC0",
salesTotal = 23.99,
total = 2969.89,
valueDifference = 7.00,
totalTaxableFees = 817.42,
netTotal = 880.71,
itemsDiscount = 5.00,
unitValue = new EInvoiceModel.UnitValue
{
currencySold = "EUR",
amountEGP = 189.40,
amountSold = 10.00,
currencyExchangeRate = 18.94,
},
discount = new EInvoiceModel.Discount
{
rate = 7,
amount = 66.29
},
taxableItems = new List<EInvoiceModel.TaxableItem>
{
new EInvoiceModel.TaxableItem
{
taxType = "T1",
amount = 272.07,
subType = "T1",
rate = 12
}
}
}
}; //Invoice Lines End
//Items total Discount and Sales/NetAmount
ds.totalDiscountAmount = 76.29;
ds.totalSalesAmount = 1609.90;
ds.netAmount = 1533.61;
//Tax Total Start
ds.taxTotals = new List<EInvoiceModel.TaxTotal>
{
new EInvoiceModel.TaxTotal
{
taxType = "T1",
amount = 477.54,
}
};//Tax Total End
//Total Sales Amount & discounts
ds.totalAmount = 5191.50;
ds.extraDiscountAmount = 5.00;
ds.totalItemsDiscountAmount = 14.00;
string strResultJson = JsonConvert.SerializeObject(ds);
//System.IO.File.WriteAllText(#"C:\inetpub\wwwroot\path.json", strResultJson);
// File.WriteAllText(#"ds.json", strResultJson);
// string jsonToSign = "{ ... }";
string jsonToSign = strResultJson;
// Create the CAdES-BES signature.
crypt.EncodingMode = "base64";
// Make sure we sign the utf-8 byte representation of the JSON string
crypt.Charset = "utf-8";
string sigBase64 = crypt.SignStringENC(jsonToSign);
// return Ok(ds);
return Ok(sigBase64);
}

public static string SerializeObject2(object obj, int indent = 0)
{
var sb = new StringBuilder();
if (obj != null)
{
string indentString = new string(' ', indent);
if (obj is string || obj.IsNumber())
{
sb.Append($"\"{obj}\"");
}
else if (obj.GetType().BaseType == typeof(Enum))
{
sb.Append($"\"{obj.ToString()}\"");
}
else if (obj is Array)
{
var elems = obj as IList;
sb.Append($"{indentString}- [{elems.Count}] :\n");
for (int i = 0; i < elems.Count; i++)
{
sb.Append(SerializeObject2(elems[i], indent + 4));
}
}
else
{
Type objType = (obj).GetType();
PropertyInfo[] props = objType.GetProperties();
foreach (PropertyInfo prop in props)
{
if (prop.GetIndexParameters().Length == 0)
{
object propValue = prop.GetValue(obj);
var elems = propValue as IList;
if (elems != null)
{
sb.Append($"\"{prop.Name.ToUpper()}\"");
foreach (var item in elems)
{
sb.Append($"\"{prop.Name.ToUpper()}\"");
sb.Append(SerializeObject2(item, indent + 4));
}
}
else
{
if (Assembly.GetExecutingAssembly().DefinedTypes.Select(p => p.Assembly).ToList().Contains(prop.PropertyType.Assembly))
{
sb.Append($"\"{prop.Name.ToUpper()}\"");
sb.Append(SerializeObject2(propValue, indent + 4));
}
else
{
sb.Append($"\"{prop.Name.ToUpper()}\"\"{propValue}\"");
}
}
}
else if (objType.GetProperty("Item") != null)
{
int count = -1;
if (objType.GetProperty("Count") != null &&
objType.GetProperty("Count").PropertyType == typeof(int))
{
count = (int)objType.GetProperty("Count").GetValue(obj, null);
}
for (int i = 0; i < count; i++)
{
object val = prop.GetValue(obj, new object[] { i });
sb.Append(SerializeObject2(val, indent + 4));
}
}
}
}
}
return sb.ToString();
}

How to Fetch Predecessor Lag and Parent.Id using ProjectServer Getting Microsoft.SharePoint.Client.PropertyOrFieldNotInitializedException

Below is the code that I use.
using (ProjectContext projContext = new ProjectContext('pwa url'))
{
projContext.AuthenticationMode = ClientAuthenticationMode.Default;
projContext.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
var projects = oBasicDetails.ProjContext.Projects;
var ProjectContext = oBasicDetails.ProjContext;
IEnumerable<PublishedTask> publishedTasks = ProjectContext.LoadQuery(selectedProject.Tasks);
ProjectContext.ExecuteQuery();
foreach (PublishedTask oTTask in publishedTasks)
{
IEnumerable<PublishedTaskLink> oPredecessorsList = ProjectContext.LoadQuery(oTTask.Predecessors);
ProjectContext.ExecuteQuery();
foreach (PublishedTaskLink PredecessorTask in oPredecessorsList)
{
if (PredecessorTask.IsObjectPropertyInstantiated("LinkLagFmt"))
{
Lag = PredecessorTask.LinkLag;
}
if (PredecessorTask.IsObjectPropertyInstantiated("LinkLagDuration"))
{
Lag = PredecessorTask.LinkLag;
}
if (PredecessorTask.IsObjectPropertyInstantiated("LinkLag"))
{
Lag = PredecessorTask.LinkLag;
}
}
}
var ParentTaskId = oTTask.Parent.Id;
}
When I try to access LinkLag or Parent.Id, I get PropertyOrFieldNotInitializedException.
ProjectContext.Load()
ProjectContext.ExecuteQuery()
If this is a valid solution. What should I be loading to ProjectContext?

Wpf WMI Win32_Service Query

In my WPF application I need to get a list of Windows Services(~200) with a specific properties.
var result = new List<ServicesModel>();
ConnectionOptions connOptions = new ConnectionOptions
{
Impersonation = ImpersonationLevel.Impersonate,
EnablePrivileges = true,
};
ManagementScope manScope = new ManagementScope($#"\\{System.Environment.MachineName}\ROOT\CIMV2",
connOptions);
manScope.Connect();
SelectQuery query = new SelectQuery("SELECT * FROM Win32_Service");
using (var searcher = new ManagementObjectSearcher(manScope, query))
foreach (var o in searcher.Get())
{
var obj = (ManagementObject) o;
ServicesModel service = new ServicesModel
{
Name = obj["DisplayName"] as string,
Path = obj["PathName"] as string,
Description = obj["Description"] as string,
Pid = Convert.ToInt32(obj["ProcessId"]),
Status = obj["State"] as string,
StartMode = obj["StartMode"] as string,
LogOnAs = obj["StartName"] as string
};
result.Add(service);
}
return result;
It takes approximately ~1 minute to execute this method and return data which is unacceptable.
Looks like searcher.Get() takes all that time...
What I can do to improve execute/return time/performance?
Thanks

Based on the comments I came up with following, hope it might help someone:
public List<string> GetWindowsServicesList()
{
var result = new List<string>();
foreach (ServiceController service in ServiceController.GetServices())
{
string serviceName = service.ServiceName;
result.Add(serviceName);
}
return result;
}
public ServicesModel GetServiceProperties(string serviceName)
{
ServicesModel service = null;
string path = $"Win32_Service.Name=\"{serviceName}\"";
using (ManagementObject mngObj = new ManagementObject(path))
{
service = new ServicesModel
{
Name = mngObj.GetPropertyValue("Name") as string,
Path = mngObj.GetPropertyValue("PathName") as string,
Description = mngObj.GetPropertyValue("Description") as string,
Pid = Convert.ToInt32(mngObj.GetPropertyValue("ProcessId")),
Status = mngObj.GetPropertyValue("State") as string,
StartMode = mngObj.GetPropertyValue("StartMode") as string,
LogOnAs = mngObj.GetPropertyValue("StartName") as string
};
}
return service;
}
public List<ServicesModel> WindowsServicesCollection()
{
var result = new List<ServicesModel>();
try
{
var windowsServicesNames = GetWindowsServicesList();
for (int i = 0; i < windowsServicesNames.Count(); i++)
{
result.Add(GetServiceProperties(windowsServicesNames[i]));
}
}
catch (System.Management.ManagementException ex)
{
}
catch (System.TimeoutException ex)
{
}
return result;
}
Works much, much faster than previous solution although it seems like performance is not super consistent and it depends from some various factors that I did not identified...

how to refresh management object

i had written a code to display the description(Name) of connected USB devices.once i removed a device,then i need to refresh the ManagementObject and have to display the connected device description.
Here is my Code,
ManagementObjectSearcher searcher =
new ManagementObjectSearcher("SELECT * FROM Win32_USBControllerDevice");
foreach (ManagementObject mo in searcher.Get())
{
string str1 = mo["CurrentRefreshRate"].ToString();
Console.WriteLine(str1);
string dependent = mo["Dependent"].ToString();
string deviceId = dependent.Split('=')[1];
deviceId = deviceId.Replace('\"', '\'');
ManagementObjectSearcher searcher2 =
new ManagementObjectSearcher("SELECT * FROM Win32_PnPEntity Where DeviceID = " + deviceId);
foreach (ManagementObject mo2 in searcher2.Get())
{
HardwareDetails Detail = new HardwareDetails();
Detail.Description = mo2["Description"].ToString();
Detail.DeviceId = mo2["DeviceId"].ToString();
string[] str = Detail.DeviceId.Split('\\');
string Id = str[1];
if (Id.Contains('&'))
{
string[] separate = Id.Split('&');
Detail.Vid = separate[0].Contains('_') ? separate[0].Split('_')[1] : separate[0].Split('D')[1];
Detail.Pid = separate[1].Contains('_') ? separate[1].Split('_')[1] : separate[1].Split('D')[1];
//Detail.Pid = pid1[1];
}
else
{
Detail.Vid = "";
Detail.Pid = "";
}
if (list.Count > 0)
{
foreach (HardwareDetails h in list)
{
if (!(h.Description == Detail.Description))
{
list.Add(Detail);
break;
}
}
}
else
list.Add(Detail);
}
}
// remove duplicates, sort alphabetically and convert to array
HardwareDetails[] usbDevices = list.ToArray();
return usbDevices;

Did you try this?
WqlEventQuery query = new WqlEventQuery(
"SELECT * FROM Win32_DeviceChangeEvent");
ManagementEventWatcher watcher = new ManagementEventWatcher(query);
watcher.EventArrived +=
new EventArrivedEventHandler(HandleEvent);
// Start listening for events
watcher.Start();
.........
// Stop listening for events
watcher.Stop();
And in the HandleEvent add or remove device from the list
Hope this helps!