import XML and validate the file

Question

I have a slight problem, i dont know how to import the xml document i have for my program to read, and then to validate the string (true/false) and if it is true save them. The program consists of program class, paymentImporter class and a interfaces class. I know i just need to change the paymentImporter class to get this working. the code is presented below:

paymentImporter class:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace WsPreInterviewTest
{

    public class XmlPaymentImporter : IPaymentImporter
    {
        public XmlPaymentImporter(IDatabaseProvider service_provider)
        {
            //import file

            throw new NotImplementedException();
        }

        public bool ReadFile(string file_path, List<string> errs)
        {

            //read file for validation

            throw new NotImplementedException();
        }

        public bool SaveAll()
        {
            //save if validation ok

            throw new NotImplementedException();
        }
    }
}

Interface Class:




public class Person
{
    public int Recno { get; set; }
    public string Name {get;set;}        
}

public class Payment
{
    public int PersonRecno { get; set; }
    public string Currency { get; set; }
    public decimal Amount { get; set; }
    public string Narrative { get; set; }

}

interface IPaymentImporter
{
    bool ReadFile(string file_path, List<string> errs);
    bool SaveAll();
}

public interface IDatabaseProvider
{
    DatabaseRepository GetDataRepository();
}

public abstract class DatabaseRepository
{
    public DatabaseRepository()
    {

    }


    /// <summary>
    /// returns null if person is not known
    /// </summary>
    /// <param name="name"></param>
    /// <returns></returns>
    public abstract Person FindPerson(string name);

    public abstract bool SavePayment(Payment payment);


}

}

program class:

class Program
{
    static void Main(string[] args)
    {
        IDatabaseProvider _service_provider = null;
        string example_file = "ExampleFile.xml";
        XmlPaymentImporter importer = new XmlPaymentImporter(_service_provider);
        List<string> errors = new List<string>();
        if (importer.ReadFile(example_file, errors))
        {
            if (!importer.SaveAll())
                Console.WriteLine("Problem saving records");
        }
        else
        {
            Console.WriteLine("Problem With File");
            foreach (string s in errors)
                Console.WriteLine(s);
        }

http://msdn.microsoft.com/en-us/library/system.xml.linq.xdocument.aspx — Dan, Jul 23 '13 at 13:32

score 0 · Answer 1 · edited May 23 '17 at 12:03

Decorate your Person and Payment classes with [Serializable()] and corresponding xml type decorators. Then just deserialize your xml document into these classes and catch exceptions. How to Deserialize XML document

The only problem I see is that there's no Person field in your Payment class. You have not provided the xml you are deserializing, but if you have the person element as a child of payment, having the same class structure will make it easier for you. You can just call Deserialize() and get the complete data structure.

import XML and validate the file

1 Answers1