コード例 #1
0
        /// <summary>
        /// Reads the descriptor of this package.
        /// </summary>
        public DataPackageDescriptor ReadDescriptor()
        {
            if (_isClosed)
            {
                throw new ObjectDisposedException(nameof(DataPackageFile));
            }

            var descriptorUri = new Uri(FILE_DESCRIPTOR, UriKind.Relative);

            if (_package.PartExists(descriptorUri))
            {
                var descriptorPart = _package.GetPart(descriptorUri);

                DataPackageDescriptor?result = null;
                using (var inStream = descriptorPart.GetStream(FileMode.Open, FileAccess.Read))
                {
                    result = SerializationHelper.DeserializeFromStream <DataPackageDescriptor>(inStream);
                }
                if (result == null)
                {
                    result = new DataPackageDescriptor();
                }

                return(result);
            }
            else
            {
                return(new DataPackageDescriptor());
            }
        }
コード例 #2
0
        public void WriteSingleFile <T>(T fileContents, string dataType)
            where T : class
        {
            if (_isClosed)
            {
                throw new ObjectDisposedException(nameof(DataPackageFile));
            }

            var descriptor = new DataPackageDescriptor();

            descriptor.DataType = dataType;

            // Write descriptor
            var descriptorUri = new Uri(FILE_DESCRIPTOR, UriKind.Relative);

            if (_package.PartExists(descriptorUri))
            {
                _package.DeletePart(descriptorUri);
            }

            var outPartDescriptor = _package.CreatePart(descriptorUri, "text/json");

            using (var outStream = outPartDescriptor.GetStream(FileMode.Create))
            {
                SerializationHelper.SerializeToStream(outStream, descriptor);
            }

            // Write content
            var contentUri = new Uri(FILE_SINGLE_DATA_FILE, UriKind.Relative);

            if (_package.PartExists(contentUri))
            {
                _package.DeletePart(contentUri);
            }

            var outPartContent = _package.CreatePart(contentUri, "text/json");

            using (var outStream = outPartContent.GetStream(FileMode.Create))
            {
                SerializationHelper.SerializeToStream(outStream, fileContents);
            }
        }