/// <summary>
/// Initializes a new instance of the <see cref="TorrentInfo" /> class.
/// </summary>
/// <param name="dictionary">The dictionary.</param>
/// <param name="infoHash">The hash.</param>
/// <param name="pieceLength">Length of the piece.</param>
/// <param name="piecesHashValues">The pieces.</param>
/// <param name="isPrivate">if set to <c>true</c> this torrent is private.</param>
/// <param name="announceList">The announce list.</param>
/// <param name="creationDate">The creation date.</param>
/// <param name="comment">The comment.</param>
/// <param name="createdBy">The created by.</param>
/// <param name="encoding">The encoding.</param>
/// <param name="files">The files.</param>
private TorrentInfo(BEncodedDictionary dictionary, string infoHash, long pieceLength, IEnumerable <string> piecesHashValues, bool isPrivate, IEnumerable <Uri> announceList, DateTime?creationDate, string comment, string createdBy, Encoding encoding, IEnumerable <TorrentFileInfo> files)
{
dictionary.CannotBeNull();
infoHash.CannotBeNullOrEmpty();
infoHash.Length.MustBeEqualTo(40);
pieceLength.MustBeGreaterThan(0);
piecesHashValues.CannotBeNullOrEmpty();
announceList.CannotBeNullOrEmpty();
encoding.CannotBeNull();
files.CannotBeNullOrEmpty();
this.dictionary = dictionary;
this.InfoHash = infoHash;
this.PieceLength = pieceLength;
this.PieceHashes = piecesHashValues;
this.IsPrivate = isPrivate;
this.AnnounceList = announceList;
this.CreationDate = creationDate;
this.Comment = comment;
this.CreatedBy = createdBy;
this.Encoding = encoding;
this.Files = files;
this.Length = files.Sum(x => x.Length);
this.PiecesCount = piecesHashValues.Count();
this.BlockLength = PieceMessage.DefaultBlockLength;
this.BlocksCount = (int)(pieceLength / PieceMessage.DefaultBlockLength);
}