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|
package AnyEvent::Riak;
use strict;
use Carp;
use URI;
use JSON::XS;
use AnyEvent;
use AnyEvent::HTTP;
our $VERSION = '0.01';
sub new {
my ( $class, %args ) = @_;
my $host = delete $args{host} || 'http://127.0.0.1:8098';
my $path = delete $args{path} || 'jiak';
bless {
host => $host,
path => $path,
%args,
}, $class;
}
sub set_bucket {
my ( $self, $bucket, $schema ) = @_;
carp "your schema is missing allowed_fields"
if ( !exists $schema->{allowed_fields} );
if ( !exists $schema->{required_fields} ) {
$schema->{required_fields} = [];
}
if ( !exists $schema->{read_mask} ) {
$schema->{read_mask} = $schema->{allowed_fields};
}
if ( !exists $schema->{write_mask} ) {
$schema->{write_mask} = $schema->{read_mask};
}
$self->_request('PUT', $self->_build_uri([$bucket]), '204',
encode_json{schema => $schema});
}
sub list_bucket {
my ( $self, $bucket ) = @_;
return $self->_request('GET', $self->_build_uri([$bucket]), '200');
}
sub fetch {
my ($self, $bucket, $key) = @_;
return $self->_request('GET', $self->_build_uri([$bucket, $key]), '200');
}
sub store {
my ( $self, $object ) = @_;
my $bucket = $object->{bucket};
my $key = $object->{key};
return $self->_request(
'PUT',
$self->_build_uri(
[ $bucket, $key ],
{
dw => 2,
returnbody => 'true'
}
),
'200',
encode_json $object);
}
sub fetch {
my ( $self, $bucket, $key, ) = @_;
return $self->_request( 'GET',
$self->_build_uri( [ $bucket, $key ], { r => 2 } ), '200' );
}
sub delete {
my ( $self, $bucket, $key ) = @_;
return $self->_request( 'DELETE',
$self->_build_uri( [ $bucket, $key ], { dw => 2 } ), 204 );
}
sub _build_uri {
my ( $self, $path, $query ) = @_;
my $uri = URI->new( $self->{host} );
$uri->path( $self->{path} . "/" . join( "/", @$path ) );
$uri->query_form(%$query) if $query;
return $uri->as_string;
}
sub _request {
my ( $self, $method, $uri, $expected, $body ) = @_;
my $cv = AnyEvent->condvar;
my $cb = sub {
my ( $body, $headers ) = @_;
if ( $headers->{Status} == $expected ) {
$body
? return $cv->send( decode_json($body) )
: return $cv->send(1);
}
else {
return $cv->send(
$headers->{Status} . ' : ' . $headers->{Reason} );
}
};
if ($body) {
http_request(
$method => $uri,
headers => { 'Content-Type' => 'application/json', },
body => $body,
$cb
);
}
else {
http_request(
$method => $uri,
headers => { 'Content-Type' => 'application/json', },
$cb
);
}
$cv;
}
1;
__END__
=head1 NAME
AnyEvent::Riak - Non-blocking Riak client
=head1 SYNOPSIS
use AnyEvent::Riak;
my $riak = AnyEvent::Riak->new(
host => 'http://127.0.0.1:8098',
path => 'jiak',
);
my $buckets = $riak->list_bucket('namespace')->recv;
my $new_bucket = $riak->set_bucket('foo', {allowed_fields => '*'})->recv;
my $store = $riak->store({bucket => 'foo', key => 'bar', object => {baz => 1},link => []})->recv;
my $fetch = $riak->fetch('foo', 'bar')->recv;
my $delete = $riak->delete('foo', 'bar')->recv;
=head1 DESCRIPTION
AnyEvent::Riak is a non-blocking riak client using anyevent.
=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
|
