Download Service, Reading XML

gistfile1.cs

public class DownloadsService
{

    private readonly IDictionary<string, IList<Download>> _downloadsCollections;

    public DownloadsService()
    {
        // may be changed as a separate config service if we need to change it somehow
        _downloadsCollections = GetDownloadsCollections(); 
    }

    public IEnumerable<Download> GetDownloads(string name)
    {
        return _downloadsCollections[name] ?? new List<Download>();
    }

    private IDictionary<string, IList<Download>> GetDownloadsCollections()
    {
        var result = new Dictionary<string, IList<Download>>();
        var xmlConfig = AppDomain.CurrentDomain.BaseDirectory + "\\" + ConfigurationManager.AppSettings.Get("downloads.config");
        using (var xmlStream = new StreamReader(xmlConfig))
        {
            var xmlDoc = new XmlDocument();
            xmlDoc.Load(xmlStream);

            var collections = xmlDoc.GetElementsByTagName("collection");
            foreach (var collection in collections)
            {
                var collectionNode = (XmlNode) collection;
                var collectionName = collectionNode.Attributes["name"].Value;
                var downloadItems = collectionNode.ChildNodes;

                var downloadList = new List<Download>();
                result.Add(collectionName, downloadList);

                foreach (var downloadItem in downloadItems)
                {
                    var downloadNode = (XmlNode) downloadItem;
                    var name = downloadNode.Attributes["name"].Value;
                    var file = downloadNode.Attributes["file"].Value;
                    downloadList.Add(new Download()
                    {
                        Name = name,
                        FileUrl = file
                    });
                }
            }

            return result;
        }

        return new Dictionary<string, IList<Download>>();

    }  
}

public class Download
{
    public string Name { get; set; }
    public string FileUrl { get; set; }
}