FileStore.FileStore.GetFile C# (CSharp) Method

        public StoreFile GetFile(string path)
        {
            if(path == null) {
                throw new ArgumentNullException(path);
            }

            Guid? id = GetFileId(path);

            if(id.HasValue && files.ContainsKey(id.Value)) {
                return files[id.Value];
            }

            // not found
            return null;
        }