Adding files to zip java using memory while avoiding reserved file name problems -

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i want add, remove or modify files in zip using effective way possible.

yes, may should unzip/zip files file system, if there file special name 'aux' or 'con' , doesn't work in windows dos device names, , there might filename encoding issues prevents process working proberly. reason don't unzip file system , re-zip is more slower , takes more disk space using ram.

in image : http://i.stack.imgur.com/ypuyg.png

you use memory bases stream, bytearrayoutputstream read/write contents of file.

the issue amount of available memory, because ram limited, you're going need store output on larger, disk eventually.

in order try , optimism process, set preferred threshold read/write/process operation.

basically run process , calculate how long took, based on preferred threshold, adjust buffer size next loop.

i allow number of loops , average time not trying fine control on buffer might slow down


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