public TorrentFileSystemMemento toMemento() {
TorrentFileSystemMemento memento = new TorrentFileSystemMementoImpl();
memento.setCompleteFile(_completeFile);
List<TorrentFile> files;
Collection<File> folders;
synchronized (this) {
files = new ArrayList<TorrentFile>(_files);
folders = new HashSet<File>(_folders);
}
memento.setFiles(files);
memento.setFolders(folders);
memento.setIncompleteFile(_incompleteFile);
memento.setName(_name);
memento.setTotalSize(_totalSize);
return memento;
}
public TorrentFileSystem(int numHashes, TorrentFileSystemMemento torrentFileSystemMemento) {
this._name = torrentFileSystemMemento.getName();
this._totalSize = torrentFileSystemMemento.getTotalSize();
this._files = torrentFileSystemMemento.getFiles();
// BEGIN TODO remove this code after releasing a few versions Sept 2nd 2008.
// There was a bug, where the file end piece would be set to numhashes instead of numhashes-1
// the piece index is zero based. old code used to ignore these propblems, some of the newer
// code throws an illegal argument exception.
for (TorrentFile file : _files) {
if (file.getEndPiece() == numHashes) {
file.setEndPiece(numHashes - 1);
}
}
// END TODO
this._unmodFiles = Collections.unmodifiableList(_files);
_folders.addAll(torrentFileSystemMemento.getFolders());
this._incompleteFile = torrentFileSystemMemento.getIncompleteFile();
this._completeFile = torrentFileSystemMemento.getCompleteFile();
}