Duplicate Searcher

Duplicate Searcher The aim of this Duplicate Searcher project is to produce a C# based application that will scan a file system or file repository for duplicate files using CRC The different types of comparison will be: File System with itself e.g. D:\data with D:\data File System with an other file system e.g. C:\data with D:\data File System with a file repository The software will produce a list of duplicate files i.e. files with matching CRC and their locations in both source and destination. The file repository will have a simple interface that will allow you to retrieve files. A sample set of classes to retrieve files is included below. Deliverables The following deliverables are required: 1. A C# Class Library to perform the comparisons listed above. 2. A command line program to drive the above library 3. A concrete implementation for the file repository so testing may be performed. For example, FTP may be used as a repository or even an other file system may be used. This only has to be good enough for testing. 4. Optional – A WPF or Windows Forms application to display the CRC matches. Appendix /// <summary>     /// Reads files from a repository     /// </summary>     public abstract class RepositoryReader     {         private string repositoryIdentifier;                  public RepositoryReader(string repositoryIdentifier)         {             [login to view URL] = repositoryIdentifier;         }                  /// <summary>Connects the repository</summary>         /// <returns>true if connection successful</returns>         public abstract bool connect();                  /// <summary>Returns the next item in the repository</summary>         /// <returns>null if there is no next item</returns>         public abstract RepositoryItem next();     }          public abstract class RepositoryItem     {                  public abstract string id();         public abstract string location();         public abstract string title();         public abstract string fileName();         public abstract Stream getFile();              } Some notes on CRC can be found here: [login to view URL]