Question

Essentially I have two different flat files Credit & Account with different record structures. I have created separate entities for their Header, Detail and Footer records and for the whole file.

File Account:

namespace Data.Entities
{
    [FlatFileContainerRecord(RecordLength = 100)]
    public class AccountFlatFile
    {
        public AccountHeader Header { get; set; }
        public List<Data.Entities.AccountDetail> Details { get; set; }
        public AccountFooter Control { get; set; }
        public AccountFlatFile()
    {
        Details = new List<AccountDetail>();
 }

File Credit:

namespace Data.Entities
{
    [FlatFileContainerRecord(RecordLength = 90)]
    public class CreditFlatFile
    {
        public CreditHeader Header { get; set; }
        public List<Data.Entities.CreditDetail> Details { get; set; }
        public CreditFooter Control { get; set; }
        public CreditFlatFile()
    {
        Details = new List<CreditDetail>();
    }
}

I created a generic job to execute the files. This is where I am stuck.

 foreach (string file in incomingFile)
 {
      GenericFile<T> genericFile = new GenericFile<T>();                
      using (Stream stream = File.OpenRead(file))
       {
            **genericFile = serializer.Deserialize<GenericFile<T>>(stream);**
       }

       if (genericFile.Details.Count > 0)
       {
               System.Threading.Tasks.Parallel.For(0, genericFile.Details.Count, parallelOptions, index =>
                {

                     Repo.Upsert(genericFile.Details[index]);
                 });
         }
         else
         {
                        //log error
          }

 }

I am not sure how exactly the GenericFile class should look like and how it would relate to the actual entity classes.

Hope I am clear with the question. Any suggestion is appreciated

Answer 1

Finally this is the generic structure I got.

I removed the Account and Credit flatfile entities and now have only the detailrecord entities for those two.

namespace Data.Entities
{
   [FlatFileContainerRecord(RecordLength = 157)]
    public class FlatFile<FlatFileHeader, DT, FlatFileFooter> 
    {
       public FlatFileHeader Header { get; set; }
       public List<DT> Details { get; set; }
       public FlatFileFooter Control { get; set; }
       public FlatFile()
    {
        Details = new List<DT>();
    }
}