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#!/usr/bin/perl
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Koha is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Koha; if not, see <http://www.gnu.org/licenses>.
use Modern::Perl;
use JSON qw( decode_json );
use Try::Tiny qw( catch try );
use Koha::BackgroundJobs;
my $conn;
try {
$conn = Koha::BackgroundJob->connect;
} catch {
warn sprintf "Cannot connect to the message broker, the jobs will be processed anyway (%s)", $_;
};
my @job_types = qw(
batch_biblio_record_modification
batch_authority_record_modification
batch_item_record_modification
batch_biblio_record_deletion
batch_authority_record_deletion
batch_item_record_deletion
batch_hold_cancel
);
if ( $conn ) {
# FIXME cf note in Koha::BackgroundJob about $namespace
my $namespace = C4::Context->config('memcached_namespace');
for my $job_type ( @job_types ) {
$conn->subscribe({ destination => sprintf("/queue/%s-%s", $namespace, $job_type), ack => 'client' });
}
}
while (1) {
if ( $conn ) {
my $frame = $conn->receive_frame;
if ( !defined $frame ) {
# maybe log connection problems
next; # will reconnect automatically
}
my $body = $frame->body;
my $args = decode_json($body);
# FIXME This means we need to have create the DB entry before
# It could work in a first step, but then we will want to handle job that will be created from the message received
my $job = Koha::BackgroundJobs->find($args->{job_id});
process_job( $job, $args );
$conn->ack( { frame => $frame } ); # FIXME depending on success?
} else {
my $jobs = Koha::BackgroundJobs->search({ status => 'new' });
while ( my $job = $jobs->next ) {
my $args = decode_json($job->data);
process_job( $job, { job_id => $job->id, %$args } );
}
sleep 10;
}
}
$conn->disconnect;
sub process_job {
my ( $job, $args ) = @_;
my $pid;
if ( $pid = fork ) {
wait;
return;
}
die "fork failed!" unless defined $pid;
$job->process( $args );
exit;
}