protected override void FlushCore()
{
// Ensure that all the data has been read out of the package
// stream already. Otherwise we'll lose data when we recreate the zip
foreach (ZipPackagePart part in Parts.Values)
{
if (part.Package != null)
{
part.GetStream().Dispose();
}
}
// Empty the package stream
PackageStream.Position = 0;
PackageStream.SetLength(0);
// Recreate the zip file
using (ZipArchive archive = new ZipArchive(PackageStream, Append.Create, false)) {
// Write all the part streams
foreach (ZipPackagePart part in Parts.Values)
{
if (part.Package == null)
{
continue;
}
Stream partStream = part.GetStream();
partStream.Seek(0, SeekOrigin.Begin);
using (Stream destination = archive.GetStream(part.Uri.ToString().Substring(1), part.CompressionOption)) {
int count = (int)Math.Min(2048, partStream.Length);
byte[] buffer = new byte [count];
while ((count = partStream.Read(buffer, 0, buffer.Length)) != 0)
{
destination.Write(buffer, 0, count);
}
}
}
using (Stream s = archive.GetStream(ContentUri, CompressionOption.Maximum))
WriteContentType(s);
}
}
protected override void FlushCore()
{
// Ensure that all the data has been read out of the package
// stream already. Otherwise we'll lose data when we recreate the zip
foreach (ZipPackagePart part in Parts.Values)
{
part.GetStream();
}
if (!PackageStream.CanSeek)
{
return;
}
// Empty the package stream
PackageStream.Position = 0;
PackageStream.SetLength(0);
// Recreate the zip file
using (ZipStorer archive = ZipStorer.Create(PackageStream, "", false))
{
// Write all the part streams
foreach (ZipPackagePart part in Parts.Values)
{
Stream partStream = part.GetStream();
partStream.Seek(0, SeekOrigin.Begin);
archive.AddStream(ZipStorer.Compression.Deflate, part.Uri.ToString().Substring(1), partStream,
DateTime.UtcNow, "");
}
using (var ms = new MemoryStream())
{
WriteContentType(ms);
ms.Seek(0, SeekOrigin.Begin);
archive.AddStream(ZipStorer.Compression.Deflate, ContentUri, ms, DateTime.UtcNow, "");
}
}
}
