Iterable gzip deflate/inflate in Java

Question

Is there a library for gzip-deflating in terms of ByteBuffers hidden in the Internet? Something which allows us to push raw data then pull deflated data? We have searched fo

Answer 1

I don't understand the "hidden in the internet" part, but zlib does in-memory gzip format compression and decompression. The java.util.zip API provides some access to zlib, though it is limited. Due to the interface limitations, you cannot request that zlib produce and consume gzip streams directly. You can however use the nowrap option to produce and consume raw deflate data. Then it's easy to roll your own gzip header and trailer, using the CRC32 class in java.util.zip. You can prepend a fixed 10-byte header, append the four-byte CRC and then the four-byte uncompressed length (modulo 2³²), both in little-endian order, and you're good to go.