package C4::Cache::Memcached;

# Copyright 2009 Chris Cormack and The Koha Dev Team
#
# 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA  02111-1307 USA

use strict;
use warnings;
use Carp;

use Cache::Memcached;

use base qw(C4::Cache);

sub _cache_handle {
    my $class  = shift;
    my $params = shift;

    my @servers = split /,/, $params->{'cache_servers'};

    return Cache::Memcached->new(
        servers   => \@servers,
        namespace => $params->{'namespace'} || 'KOHA',
    );
}

sub set_in_cache {
    my ( $self, $key, $value, $expiry ) = @_;
    croak "No key" unless $key;

    if ( defined $expiry ) {
        return $self->cache->set( $key, $value, $expiry );
    }
    else {
        return $self->cache->set( $key, $value );
    }
}

sub get_from_cache {
    my ( $self, $key ) = @_;
    croak "No key" unless $key;
    return $self->cache->get($key);
}

sub clear_from_cache {
    my ( $self, $key ) = @_;
    croak "No key" unless $key;
    return $self->cache->delete($key);
}

sub flush_all {
    my $self = shift;
    return $self->cache->flush_all;
}

1;
__END__                                                                         
                                                                                  
=head1 NAME                                                                     
                                                                                
  C4::Cache::Memcached - memcached subclass of C4::Cache                
                                                                                  
=cut