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package Message::Passing::AMQP::Role::DeclaresExchange;
use Moose::Role;
use Moose::Util::TypeConstraints;
use Scalar::Util qw/ weaken /;
use namespace::autoclean;
with 'Message::Passing::AMQP::Role::HasAChannel';
has exchange_name => (
is => 'ro',
required => 1,
isa => 'Str',
);
has exchange_type => (
is => 'ro',
isa => enum([qw/ topic direct fanout /]),
default => 'topic',
);
has exchange_durable => (
is => 'ro',
isa => 'Bool',
default => 1,
);
has _exchange => (
is => 'ro',
writer => '_set_exchange',
predicate => '_has_exchange',
);
after _set_channel => sub {
my $self = shift;
weaken($self);
$self->_channel->declare_exchange(
type => $self->exchange_type,
durable => $self->exchange_durable,
exchange => $self->exchange_name,
on_success => sub {
$self->_set_exchange(shift()->method_frame);
},
on_failure => sub {
$self->_clear_channel;
},
);
};
1;
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