public string Duplicate(string id)
{
var lId2 = _nrwl.AcquireWriterLock($"{nameof(ChunkMap)}.{id}");
var lId = _nrwl.AcquireReaderLock($"{nameof(Chunk)}.{id}");
var mapSearch = _maps.Find(x => x.ID == id).ToList();
if (!mapSearch.Any())
{
_nrwl.ReleaseLock($"{nameof(ChunkMap)}.{id}", lId2);
_nrwl.ReleaseLock($"{nameof(Chunk)}.{id}", lId);
throw new MdbfsElementNotFoundException();
} //not found
var map = mapSearch.First();
var nMap = new ChunkMap {
ChunksIDs = new List <string>(), Length = map.Length, Removed = false
};
var chunksSearch = _chunks.Find(Builders <Chunk> .Filter.Where(x => map.ChunksIDs.Contains(x.ID)));
var nChunks = chunksSearch.ToEnumerable().Select(ch => new Chunk {
Bytes = ch.Bytes
}).ToList();
_chunks.InsertMany(nChunks);
nChunks.ForEach(x => nMap.ChunksIDs.Add(x.ID));
_maps.InsertOne(nMap);
_nrwl.ReleaseLock($"{nameof(ChunkMap)}.{id}", lId2);
_nrwl.ReleaseLock($"{nameof(Chunk)}.{id}", lId);
return(nMap.ID);
}
public Element Remove(string id, bool permanently)
{
var lId = _nrwl.AcquireWriterLock($"{nameof(Files)}.{id}");
Element f = null;
if (permanently)
{
_elements.FindOneAndDelete(x => x.ID == id);
var lId2 = _nrwl.AcquireWriterLock($"{nameof(ChunkMap)}.{id}");
_binaryStorage._maps.UpdateOne(x => x.ID == id, Builders <ChunkMap> .Update.Set(x => x.Removed, true));
_nrwl.ReleaseLock($"{nameof(ChunkMap)}.{id}", lId2);
}
else
{
var elemSearch = _elements.Find(x => x.ID == id).ToList();
if (elemSearch.Count != 0)
{
var e = f = elemSearch.First();
var originalLocationNames = "";
var originalLocationIDs = "";
var deleted = DateTime.Now;
do
{
// ReSharper disable once AccessToModifiedClosure
var parentSearch = _elements.Find(x => x.ID == e.ParentID).ToList();
e = parentSearch.First();
originalLocationNames = e.Name + '/' + originalLocationNames;
originalLocationIDs = e.ID + '/' + originalLocationIDs;
} while (e.ParentID != null);
f.Opened = deleted;
f.Modified = deleted;
f.Removed = true;
f.Metadata[nameof(EMetadataKeys.PathNames)] = originalLocationNames;
f.Metadata[nameof(EMetadataKeys.PathIDs)] = originalLocationIDs;
f.Metadata[nameof(EMetadataKeys.Deleted)] = deleted;
_elements.FindOneAndReplace(x => x.ID == id, f);
}
}
_nrwl.ReleaseLock($"{nameof(Files)}.{id}", lId);
return(f);
}
public static (bool success, BinaryUploadStream stream) Open(IMongoCollection <ChunkMap> maps,
IMongoCollection <Chunk> chunks, int maxChunkLenght, string id, NamedReaderWriterLock namedReaderWriterLock)
{
var(success, map) = CreateNewElement(maps, id, namedReaderWriterLock);
if (!success)
{
return(false, null);
}
var stream = new BinaryUploadStream(maps, chunks, maxChunkLenght, namedReaderWriterLock)
{
_map = map
};
stream._nrwlID = namedReaderWriterLock.AcquireWriterLock($"{nameof(Chunk)}.{map.ID}");
return(true, stream);
}
