Created
October 24, 2012 13:45
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gzip_ruby
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require 'zlib' | |
require 'stringio' | |
require 'json' | |
def gunzip(data) | |
io = StringIO.new(data, "rb") | |
gz = Zlib::GzipReader.new(io) | |
decompressed = gz.read | |
end | |
def gzip(string) | |
wio = StringIO.new("w") | |
w_gz = Zlib::GzipWriter.new(wio) | |
w_gz.write(string) | |
w_gz.close | |
compressed = wio.string | |
end | |
data = (1..100).collect {|i| {"id_#{i}" => "value_#{i}" } } | |
contents = data.to_json | |
compressed = gzip(contents) | |
decompressed = gunzip(compressed) | |
puts "compressed string:" | |
puts compressed | |
puts "decompressed success? #{decompressed == contents}" | |
puts "uncompressed data size: #{contents.length}" | |
puts "decompressed data size: #{compressed.length}" | |
puts "compress ratio: #{compressed.length.to_f / contents.length.to_f}" |
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