CmisSync.Lib.Consumer.SituationSolver.AbstractEnhancedSolver.LoadCacheFile C# (CSharp) Метод

        private bool LoadCacheFile(IFileInfo target, IDocument remoteDocument, IFileSystemInfoFactory fsFactory) {
            if (this.TransmissionStorage == null) {
                return false;
            }

            IFileTransmissionObject obj = this.TransmissionStorage.GetObjectByRemoteObjectId(remoteDocument.Id);
            if (obj == null) {
                return false;
            }

            IFileInfo localFile = fsFactory.CreateFileInfo(obj.LocalPath);
            if (!localFile.Exists) {
                return false;
            }

            if (obj.LastChangeToken != remoteDocument.ChangeToken || localFile.Length != obj.LastContentSize) {
                localFile.Delete();
                return false;
            }

            try {
                byte[] localHash;
                using (var f = localFile.Open(FileMode.Open, FileAccess.Read, FileShare.None)) {
                    localHash = SHA1Managed.Create().ComputeHash(f);
                }

                if (!localHash.SequenceEqual(obj.LastChecksum)) {
                    localFile.Delete();
                    return false;
                }

                if (target.FullName != obj.LocalPath) {
                    if (target.Exists) {
                        Guid? uuid = target.Uuid;
                        if (uuid != null) {
                            localFile.Uuid = uuid;
                        }

                        target.Delete();
                    }

                    localFile.MoveTo(target.FullName);
                    target.Refresh();
                }

                return true;
            } catch (Exception) {
                localFile.Delete();
                return false;
            }
        }