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ZipWriter streaming compression

Posted: 06/17/2013 14:48:21
by Casey R (Basic support level)
Joined: 06/17/2013
Posts: 2

I am trying to create streaming Zip file support using our Eldos package; I don't think Eldos currently supports this but I wanted to verify. The goal is to end up with a single compressed log file. The app will continuously write messages to the compressed file, without having to do one massive compress at shutdown of the application.

From my reading, the BeginCompression->Add->UpdateCompression->EndCompression path will create a new compressed file in the archive for each Add(). Is there a way to Add() to the same file each time and have it append to the same archive, then on the EndCompression() call it will write the CRC info at the end of the file in the data descriptor segment?

That way I will end up with logfile.zip that contains only 1 file, e.g. logfile.txt within the archive itself.

Thank you
Posted: 06/17/2013 15:01:51
by Mykola Olshevsky (Basic support level)
Joined: 07/07/2005
Posts: 442

Hi. Unfortunately, there is no way to update and compress the stream on the fly yet.
Posted: 06/17/2013 15:06:26
by Casey R (Basic support level)
Joined: 06/17/2013
Posts: 2

OK thanks for the quick reply



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