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#!/usr/bin/env perl | |
use v5.10; | |
use strict; | |
use warnings; | |
use Path::Tiny; | |
use MongoDB; | |
use IO::Compress::Gzip qw/gzip $GzipError/; | |
use IO::Uncompress::Gunzip qw/gunzip $GunzipError/; | |
# connect to MongoDB on localhost | |
my $mc = MongoDB->connect(); | |
# get the MongoDB::GridFSBucket object, with majority read/write concerns | |
my $gfs = $mc->db("test")->gfs; | |
# drop the GridFS bucket for this demo | |
$gfs->drop; | |
# print info on file to upload | |
my $file = path("big.txt"); | |
say "local $file is " . ( -s $file ) . " bytes"; | |
# open a handle for uploading | |
my $up_fh = $gfs->open_upload_stream("$file")->fh; | |
# compress and upload file | |
gzip $file->openr_raw => $up_fh | |
or die $GzipError; | |
# flush data to GridFS | |
my $doc = $up_fh->close; | |
say "gridfs $file is " . $doc->{length} . " bytes"; | |
# download and uncompress file | |
my $copy = path("big2.txt"); | |
gunzip $gfs->open_download_stream( $doc->{_id} )->fh => $copy->openw_raw | |
or die $GunzipError; | |
say "copied $copy is " . ( -s $copy ) . " bytes"; | |
# report compression ratio | |
printf("compressed was %d%% of original\n", 100 * $doc->{length} / -s $file ); |
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