Mechsoft.MFiles.VAF.Workers 3.0.2

Workers for M-Files Background Operations

Manages and simplifies M-Files background operations

Dependencies

• Interop.MFilesAPI

• MFiles.VAF.2.1.0.4

Samples

• Sample for running background worker at specified time once a day

public class TCMBCurrencyRateFetcher : BackgroundWorkerOnceADayWithReturn<VaultApplication, Dictionary<string, double>>
{
    public TCMBCurrencyRateFetcher() : base("TCMB daily currency rate fetcher", 16, 32, 00)
    {
            
    }

    public override Dictionary<string, double> DoWork(VaultApplication application, BackgroundOperation operation)
    {
        var serializer = new XmlSerializer(typeof(CurrenyCollection));

        using (var client = new WebClient())
        {
            using (var stream = client.OpenRead("http://www.tcmb.gov.tr/kurlar/today.xml"))
            {
                var root = (CurrenyCollection)serializer.Deserialize(stream);

                return root.Currencies.ToDictionary(d => d.CurrencyCode, d => double.Parse(d.ForexBuying.Replace('.', ',')));
            }
        }
    }

    [XmlRoot(ElementName = "Currency")]
    public class Currency
    {
        [XmlElement(ElementName = "CurrencyName")]
        public string CurrencyName { get; set; }

        [XmlElement(ElementName = "ForexBuying")]
        public string ForexBuying { get; set; }

        [XmlElement(ElementName = "ForexSelling")]
        public string ForexSelling { get; set; }

        [XmlElement(ElementName = "BanknoteBuying")]
        public string BanknoteBuying { get; set; }

        [XmlElement(ElementName = "BanknoteSelling")]
        public string BanknoteSelling { get; set; }

        [XmlElement(ElementName = "CrossRateUSD")]
        public string CrossRateUSD { get; set; }

        [XmlElement(ElementName = "CrossRateOther")]
        public string CrossRateOther { get; set; }

        [XmlAttribute(AttributeName = "CrossOrder")]
        public string CrossOrder { get; set; }

        [XmlAttribute(AttributeName = "CurrencyCode")]
        public string CurrencyCode { get; set; }
    }

    [XmlRoot(ElementName = "Tarih_Date")]
    public class CurrenyCollection
    {
        [XmlElement(ElementName = "Currency")]
        public List<Currency> Currencies { get; set; }
    }
}

Then use it in VaultApplication class

public class VaultApplication : VaultApplicationBase
{
    protected override void StartApplication()
    {
        var currencyFetcher = new TCMBExchangeRateFetcher();

        currencyFetcher.Successed += (sender, currencies) =>
        {
            var usd = currencies["USD"];

            SysUtils.ReportInfoToEventLog($"USD: {usd}");
        };

        currencyFetcher.ErrorOccured += (sender, exception) =>
        {
            SysUtils.ReportErrorToEventLog("An error occured while fetching currencies. Worker will re-run after specified timespan offset", exception);
        };

        this.StartWorker(currencyFetcher);
    }
}

Authors

• Fatih Güneş - Mechsoft Software Solutions