/// <summary>
 /// Deserialize from a specific file location.
 /// </summary>
 /// <param name="outputFileName"></param>
 public void Deserialize(string indexFileName)
 {
     using (var fs = new FileStream(indexFileName, FileMode.Open))
     {
         using (var zip = new ZipArchive(fs))
         {
             using (StreamReader sr = new StreamReader(zip.Entries.First().Open()))
             {
                 using (var input = new CodedInputStream(sr.BaseStream))
                 {
                     KeyWordsDictionary = StringToArticlesDictionary.Parser.ParseFrom(input);
                 }
             }
         }
     }
 }
 /// <summary>
 /// Ctor.
 /// </summary>
 public ArticlesHub()
 {
     KeyWordsDictionary = new StringToArticlesDictionary();
 }