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package App::Glacier::Job;
use strict;
use warnings;
require Exporter;
use parent qw(Exporter);
use Carp;
use App::Glacier::Core;
use App::Glacier::Timestamp;
# new(CMD, VAULT, KEY, INIT)
sub new {
croak "bad number of arguments" unless $#_ >= 4;
my ($class, $cmd, $vault, $key, %opts) = @_;
my $invalidate = delete $opts{invalidate};
my $ttl = delete $opts{ttl};
if (keys(%opts)) {
croak "unrecognized parameters: ".join(', ', keys(%opts));
}
return bless { _cmd => $cmd,
_vault => $vault,
_key => $key,
_job => undef,
_ttl => $ttl,
_invalidate => $invalidate }, $class;
}
sub fromdb {
my ($class, $cmd, $vault, $key, $job) = @_;
return bless { _cmd => $cmd,
_vault => $vault,
_key => $key,
_job => $job }, $class;
}
sub command { shift->{_cmd} }
sub glacier { shift->command->glacier }
sub vault { shift->{_vault} };
sub _get_db {
my ($self) = @_;
return $self->command->jobdb();
}
sub _get_job {
my ($self) = @_;
my $db = $self->_get_db;
if ($self->{_job}) {
if ($self->{_invalidate}) {
$db->delete($self->{_key});
$self->{_job} = undef;
}
}
unless ($self->{_job}) {
my $job = $db->retrieve($self->{_key}) unless $self->{_invalidate};
if (!$job) {
$self->debug(2, "initiating job $self->{_key}");
$job = { JobId => $self->init, Completed => 0 };
$db->store($self->{_key}, $job);
}
if (!$job->{Completed}
|| ($self->{_ttl}
&& (time - $job->{CompletionDate}->epoch) > $self->{_ttl})) {
$self->debug(2, "checking status of job $self->{_key}");
my $res = $self->glacier->Describe_job($self->{_vault},
$job->{JobId});
if ($self->glacier->lasterr) {
if ($self->glacier->lasterr('code') == 404) {
$self->debug(2, "job $self->{_key} expired");
$db->delete($self->{_key});
return $self->_get_job;
} else {
$self->command->abend(EX_UNAVAILABLE,
"can't describe job $job->{JobId}: ",
$self->glacier->last_error_message);
}
} elsif (ref($res) ne 'HASH') {
croak "describe_job returned wrong datatype (".ref($res).") for \"$job->{JobId}\"";
} else {
$res = timestamp_deserialize($res);
$self->debug(2, $res->{StatusCode});
$db->store($self->{_key}, $res);
$job = $res;
}
}
$self->{_job} = $job;
}
return $self->{_job};
}
sub debug { my $self = shift->command->debug(@_) }
sub id {
my $self = shift;
my $job = $self->_get_job;
return $job->{JobId};
}
sub get {
my ($self, $key) = @_;
my $job = $self->_get_job;
return undef unless exists $job->{$key};
return $job->{$key};
}
sub is_finished {
my $self = shift;
return defined($self->get('StatusCode'));
}
sub is_completed {
my $self = shift;
return ($self->get('StatusCode') || '') eq 'Succeeded';
}
sub status {
my $self = shift;
my $status = $self->get('StatusCode');
return undef unless defined $status;
return wantarray ? ($status, $self->get('StatusMessage')) : $status;
}
sub delete {
my $self = shift;
if (my $cache = $self->cache_file) {
if (-f $cache) {
unlink($cache);
}
}
my $db = $self->_get_db;
$db->delete($self->{_key});
}
sub cache_file {
my $self = shift;
my $aid = $self->get('ArchiveId') or return;
my $vault = $self->get('VaultARN') or return;
$vault =~ s{.*:vaults/}{};
return $self->command->archive_cache_filename($vault, $aid);
}
1;
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