internal RepositoryFolderReader(IFolder folder, IReader reader)
{
_position = new FolderReadingPosition(folder);
this.TargetFolder = folder;
MasterReader = reader;
// creating iterator; its direction will be set in SetDirection()
_fileIterator = folder.Repository.ObjectFactory.GetDataFileIterator(folder, false);
SetDirection(EnumerationDirection.Forwards);
}
public override bool Equals(object obj)
{
if (obj == null)
{
return false;
}
FolderReadingPosition that = obj as FolderReadingPosition;
if (obj == null)
{
return false;
}
return this.FolderKey == that.FolderKey && this.Time == that.Time && this.NumberOfItemsWithTheTimestampRead == that.NumberOfItemsWithTheTimestampRead
&& this.VerificationLastReadItemHash == that.VerificationLastReadItemHash;
}
/// <summary>
/// Add a folder to the list of folders being read and prepare it for reading if the reader has data
/// </summary>
/// <param name="folder">
/// Repository folder
/// </param>
/// <returns>
/// <see langword="false"/> - the folder is already being read
/// <see langword="true"/> otherwise
/// </returns>
/// <remarks>
/// Starting new folder from last read item time, not next item time to be consistent
/// if no items has been read yet, using last seek time; this works transparently with restoring position;
/// say a reader was sought but there was no data or reading was interrupted; the reader should provide a position
/// upon restoration of which later all items added since the position was saved and which would have been read
/// had the seek been called after they were added, would be read by the reader.
/// </remarks>
/// <exception cref="ObjectDisposedException">
/// The reader has been disposed.
/// </exception>
public bool AddFolder(IRepositoryFolder folder)
{
CheckNotDisposed();
Exceptions.DifferentRepositoriesExceptionHelper.Check(folder.Repository, Repository);
// position if reading is under way; otherwise Seek will have to be called before reading
// all additions should go through AddFolderImpl
FolderReadingPosition position = null;
if (IsPositioned)
{
position = new FolderReadingPosition(folder, _position.Time);
}
return(AddFolderImpl(folder, position));
}