package Catalyst::Engine::Stomp;
use Moose;
-extends 'Catalyst::Engine::Embeddable';
-
-our $VERSION = '0.03';
-
use List::MoreUtils qw/ uniq /;
use HTTP::Request;
use Net::Stomp;
+use namespace::autoclean;
+
+extends 'Catalyst::Engine::Embeddable';
+
+our $VERSION = '0.06';
has connection => (is => 'rw', isa => 'Net::Stomp');
has conn_desc => (is => 'rw', isa => 'Str');
BEGIN {
$ENV{CATALYST_ENGINE} = 'Stomp';
require Catalyst::Engine::Stomp;
- }
+ }
MyApp->config->{Engine::Stomp} =
{
=head1 DESCRIPTION
Write a Catalyst app connected to a Stomp messagebroker, not HTTP. You
-need a controller that understands messaging, as well as this engine.
+need a controller that understands messaging, as well as this engine.
This is single-threaded and single process - you need to run multiple
instances of this engine to get concurrency, and configure your broker
Controllers are mapped to Stomp queues, and a controller base class is
provided, Catalyst::Controller::MessageDriven, which implements
-YAML-serialized messages, mapping a top-level YAML "type" key to
-the action.
+YAML-serialized messages, mapping a top-level YAML "type" key to
+the action.
=head1 METHODS
die 'No Engine::Stomp configuration found'
unless ref $app->config->{'Engine::Stomp'} eq 'HASH';
- # list the path namespaces that will be mapped as queues.
- #
- # this is known to use the deprecated
- # Dispatcher->action_hash() method, but there doesn't appear
- # to be another way to get the relevant strings out.
- #
- # http://github.com/rafl/catalyst-runtime/commit/5de163f4963d9dbb41d7311ca6f17314091b7af3#L2R644
- #
- my @queues =
- uniq
- grep { length $_ }
- map { $_->namespace }
- values %{$app->dispatcher->action_hash};
+ my @queues = grep { length $_ }
+ map { $app->controller($_)->action_namespace } $app->controllers;
# connect up
my %template = %{$app->config->{'Engine::Stomp'}};
foreach my $queue (@queues) {
my $queue_name = "/queue/$queue";
$self->connection->subscribe({
- destination => $queue_name,
- ack => 'client'
+ destination => $queue_name,
+ ack => 'client'
});
}
=cut
sub prepare_request {
- my ($self, $c, $req, $res_ref) = @_;
- shift @_;
- $self->next::method(@_);
- $c->req->address($self->conn_desc);
+ my ($self, $c, $req, $res_ref) = @_;
+ shift @_;
+ $self->next::method(@_);
+ $c->req->address($self->conn_desc);
}
=head2 finalize_headers
=cut
sub finalize_headers {
- my ($self, $c) = @_;
- my $error = join "\n", @{$c->error};
- if ($error) {
- $c->log->debug($error);
- }
- return $self->next::method($c);
+ my ($self, $c) = @_;
+ my $error = join "\n", @{$c->error};
+ if ($error) {
+ $c->log->debug($error);
+ }
+ return $self->next::method($c);
}
=head2 handle_stomp_frame
=cut
sub handle_stomp_frame {
- my ($self, $app, $frame) = @_;
-
- my $command = $frame->command();
- if ($command eq 'MESSAGE') {
- $self->handle_stomp_message($app, $frame);
- }
- elsif ($command eq 'ERROR') {
- $self->handle_stomp_error($app, $frame);
- }
- else {
- $app->log->debug("Got unknown Stomp command: $command");
- }
+ my ($self, $app, $frame) = @_;
+
+ my $command = $frame->command();
+ if ($command eq 'MESSAGE') {
+ $self->handle_stomp_message($app, $frame);
+ }
+ elsif ($command eq 'ERROR') {
+ $self->handle_stomp_error($app, $frame);
+ }
+ else {
+ $app->log->debug("Got unknown Stomp command: $command");
+ }
}
=head2 handle_stomp_message
=cut
sub handle_stomp_message {
- my ($self, $app, $frame) = @_;
-
- # queue -> controller
- my $queue = $frame->headers->{destination};
- my ($controller) = $queue =~ m!^/queue/(.*)$!;
-
- # set up request
- my $config = $app->config->{'Engine::Stomp'};
- my $url = 'stomp://'.$config->{hostname}.':'.$config->{port}.'/'.$controller;
- my $req = HTTP::Request->new(POST => $url);
- $req->content($frame->body);
- $req->content_length(length $frame->body);
-
- # dispatch
- my $response;
- $app->handle_request($req, \$response);
-
- # reply, if header set
- if (my $reply_to = $response->headers->header('X-Reply-Address')) {
- my $reply_queue = '/remote-temp-queue/' . $reply_to;
- $self->connection->send({ destination => $reply_queue, body => $response->content });
- }
-
- # ack the message off the queue now we've replied / processed
- $self->connection->ack( { frame => $frame } );
+ my ($self, $app, $frame) = @_;
+
+ # queue -> controller
+ my $queue = $frame->headers->{destination};
+ my ($controller) = $queue =~ m|^/queue/(.*)$|;
+
+ # set up request
+ my $config = $app->config->{'Engine::Stomp'};
+ my $url = 'stomp://'.$config->{hostname}.':'.$config->{port}.'/'.$controller;
+ my $req = HTTP::Request->new(POST => $url);
+ $req->content($frame->body);
+ $req->content_length(length $frame->body);
+
+ # dispatch
+ my $response;
+ $app->handle_request($req, \$response);
+
+ # reply, if header set
+ if (my $reply_to = $response->headers->header('X-Reply-Address')) {
+ my $reply_queue = '/remote-temp-queue/' . $reply_to;
+ $self->connection->send({ destination => $reply_queue, body => $response->content });
+ }
+
+ # ack the message off the queue now we've replied / processed
+ $self->connection->ack( { frame => $frame } );
}
=head2 handle_stomp_error
=cut
sub handle_stomp_error {
- my ($self, $app, $frame) = @_;
-
- my $error = $frame->headers->{message};
- $app->log->debug("Got Stomp error: $error");
+ my ($self, $app, $frame) = @_;
+
+ my $error = $frame->headers->{message};
+ $app->log->debug("Got Stomp error: $error");
}
__PACKAGE__->meta->make_immutable;
-1;
-
projects / catagits/Catalyst-Engine-STOMP.git / blobdiff