public async Task <Element> RemoveAsync(string id, bool permanently)
{
var lId = await _nrwl.AcquireWriterLockAsync($"{nameof(Files)}.{id}");
Element f = null;
try
{
if (permanently)
{
await _elements.FindOneAndDeleteAsync(x => x.ID == id);
var lId2 = await _nrwl.AcquireWriterLockAsync($"{nameof(ChunkMap)}.{id}");
await _binaryStorage._maps.UpdateOneAsync(x => x.ID == id, Builders <ChunkMap> .Update.Set(x => x.Removed, true));
await _nrwl.ReleaseLockAsync($"{nameof(ChunkMap)}.{id}", lId2);
}
else
{
var elemSearch = (await _elements.FindAsync(x => x.ID == id)).ToList();
if (elemSearch.Count != 0) //element found
{
var e = f = elemSearch.First();
var originalLocationNames = "";
var originalLocationIDs = "";
var deleted = DateTime.Now;
do
{
var parentSearch = (await _elements.FindAsync(x => x.ID == e.ParentID)).ToList();
if (!parentSearch.Any())
{
await _nrwl.ReleaseLockAsync($"{nameof(Files)}.{id}", lId);
throw new MdbfsElementNotFoundException(nameof(id));
}
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;
await _elements.FindOneAndReplaceAsync(x => x.ID == id, f);
}
}
}
catch (Exception)
{
await _nrwl.ReleaseLockAsync($"{nameof(Files)}.{id}", lId);
}
await _nrwl.ReleaseLockAsync($"{nameof(Files)}.{id}", lId);
return(f);
}
internal async Task <string> DuplicateAsync(string id)
{
var lId2 = await _nrwl.AcquireWriterLockAsync($"{nameof(ChunkMap)}.{id}");
var mapSearch = (await _maps.FindAsync(x => x.ID == id)).ToList();
if (!mapSearch.Any())
{
await _nrwl.ReleaseLockAsync($"{nameof(ChunkMap)}.{id}", lId2);
throw new MdbfsElementNotFoundException();
} //not found
var map = mapSearch.First();
var nMap = new ChunkMap {
ChunksIDs = new List <string>(), Length = map.Length, Removed = false
};
var chunksSearch = await _chunks.FindAsync(Builders <Chunk> .Filter.Where(x => map.ChunksIDs.Contains(x.ID)));
var nChunks = new List <Chunk>();
foreach (var ch in chunksSearch.ToEnumerable())
{
nChunks.Add(new Chunk {
Bytes = ch.Bytes
});
}
await _chunks.InsertManyAsync(nChunks);
nChunks.ForEach(x => nMap.ChunksIDs.Add(x.ID));
await _maps.InsertOneAsync(nMap);
await _nrwl.ReleaseLockAsync($"{nameof(ChunkMap)}.{id}", lId2);
return(nMap.ID);
}
public static async Task <(bool success, BinaryUploadStream stream)> OpenAsync(IMongoCollection <ChunkMap> maps,
IMongoCollection <Chunk> chunks, int maxChunkLenght, string id, NamedReaderWriterLock namedReaderWriterLock)
{
if (id != null)
{
}
var(success, map) = await CreateNewElementAsync(maps, id, namedReaderWriterLock);
if (!success)
{
return(false, null);
}
var stream = new BinaryUploadStream(maps, chunks, maxChunkLenght, namedReaderWriterLock)
{
_map = map
};
stream._nrwlID = await namedReaderWriterLock.AcquireWriterLockAsync($"{nameof(Chunk)}.{map.ID}");
return(true, stream);
}
