CmisSync.Lib.Consumer.SituationSolver.RemoteObjectAdded.MergeExistingFileWithRemoteFile C# (CSharp) Метод

        private bool MergeExistingFileWithRemoteFile(IFileInfo file, IDocument remoteDoc, Guid guid, out byte[] localHash) {
            byte[] remoteHash = remoteDoc.ContentStreamHash();
            localHash = null;
            if (file.Length.Equals(remoteDoc.ContentStreamLength)) {
                using (var f = file.Open(FileMode.Open, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete)) {
                    localHash = SHA1Managed.Create().ComputeHash(f);
                }

                if (remoteHash != null) {
                    if (localHash != null && localHash.SequenceEqual(remoteHash)) {
                        if (remoteDoc.LastModificationDate != null) {
                            try {
                                file.LastWriteTimeUtc = (DateTime)remoteDoc.LastModificationDate;
                            } catch(IOException e) {
                                Logger.Debug("Cannot set last modification date", e);
                            }
                        }

                        file.Uuid = guid;
                        MappedObject mappedObject = new MappedObject(
                            file.Name,
                            remoteDoc.Id,
                            MappedObjectType.File,
                            remoteDoc.Parents[0].Id,
                            remoteDoc.ChangeToken,
                            remoteDoc.ContentStreamLength ?? file.Length)
                        {
                            Guid = guid,
                            LastLocalWriteTimeUtc = file.LastWriteTimeUtc,
                            LastRemoteWriteTimeUtc = remoteDoc.LastModificationDate,
                            LastChecksum = localHash,
                            ChecksumAlgorithmName = "SHA-1"
                        };
                        this.Storage.SaveMappedObject(mappedObject);
                        return true;
                    }
                }
            }

            return false;
        }
    }