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|
package KiokuDB::Backend::Riak;
use Carp;
use Moose;
use JSON::XS;
use AnyEvent::Riak;
use Try::Tiny;
use namespace::clean -except => 'meta';
use Data::Stream::Bulk::Util qw(bulk);
with qw(
KiokuDB::Backend
KiokuDB::Backend::Role::Clear
KiokuDB::Backend::Serialize::JSPON
);
our $VERSION = '0.01';
has bucket => (isa => 'Str', is => 'rw');
has db => (
isa => "AnyEvent::Riak",
is => "ro",
handles => [qw(document)],
);
sub new_from_dsn_params {
my ( $self, %args ) = @_;
my $host = delete $args{host};
my $path = delete $args{path};
$self->bucket( delete $args{bucket} );
croak "bucket is required" if !$self->bucket;
my $db = AnyEvent::Riak->new( { 'host' => $host, path => $path } );
$self->new( %args, db => $db );
}
sub get {
my ( $self, @ids ) = @_;
return map {$self->get_entry($_)} @ids;
}
sub get_entry {
my ($self, $id) = @_;
my $entry;
try {
my $obj = $self->db->fetch($self->bucket, $id)->recv;
$entry = $self->deserialize($obj->{object});
};
return $entry;
}
sub deserialize {
my ( $self, $doc ) = @_;
my %doc = %{ $doc };
return $self->expand_jspon(\%doc, backend_data => $doc );
}
sub exists {
my ( $self, @ids ) = @_;
my @exists;
foreach my $id (@ids) {
my $res;
try {
$res = $self->db->fetch($self->bucket, $_)->recv;
push @exists, 1
}catch{
push @exists, 0;
};
}
return @exists;
}
sub delete {
my ($self, @ids_or_entries) = @_;
my @ids = map { ref($_) ? $_->id : $_ } @ids_or_entries;
$self->db->delete($self->bucket, $_)->recv foreach (@ids);
}
sub clear {
my ($self, ) = @_;
try {
my $res = $self->db->list_bucket($self->bucket);
return $self->delete(@{$res->{keys}});
};
}
sub all_entries {
my ($self) = @_;
try {
my $res = $self->db->list_bucket($self->bucket);
return $self->get(@{$res->{keys}});
};
}
sub insert {
my ($self, @entries) = @_;
for my $entry (@entries) {
$self->insert_entry($entry);
}
return;
}
sub insert_entry {
my ( $self, $entry ) = @_;
my $check;
try {
my $res = $self->db->store(
{
bucket => $self->bucket,
key => $entry->id,
object => $self->collapse_jspon($entry),
links => []
}
)->recv;
};
}
1;
__END__
=head1 NAME
KiokuDB::Backend::Riak - Riak backend for L<KiokuDB>
=head1 SYNOPSIS
use KiokuDB::Backend::Riak;
=head1 DESCRIPTION
This backend provides L<KiokuDB> support for Riak using <AnyEvent::Riak>.
=head1 AUTHOR
franck cuny E<lt>franck@lumberjaph.netE<gt>
=head1 SEE ALSO
=head1 LICENSE
Copyright 2009 by linkfluence.
L<http://linkfluence.net>
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
|
