X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FCatalyst%2FController%2FMessageDriven.pm;h=d74452e3a899515d617567fcf674175af4495523;hb=7f592702c2333dca80ef4ef33f7f5850a9e97ca0;hp=10e645dd114cdb0428d51778766f4bda4a5f5323;hpb=bf8937b70eb1aabe53e63e2e6c70f569056e609a;p=catagits%2FCatalyst-Engine-STOMP.git diff --git a/lib/Catalyst/Controller/MessageDriven.pm b/lib/Catalyst/Controller/MessageDriven.pm index 10e645d..d74452e 100644 --- a/lib/Catalyst/Controller/MessageDriven.pm +++ b/lib/Catalyst/Controller/MessageDriven.pm @@ -1,6 +1,7 @@ package Catalyst::Controller::MessageDriven; use Moose; -use YAML::XS qw/ LoadFile Dump /; +use Data::Serializer; +use namespace::autoclean; BEGIN { extends 'Catalyst::Controller' } @@ -14,10 +15,10 @@ Catalyst::Controller::MessageDriven use Moose; BEGIN { extends 'Catalyst::Controller::MessageDriven' } - sub some_action : Local { + sub some_action : Local { my ($self, $c, $message) = @_; - # Handle message + # Handle message # Reply with a minimal response message my $response = { type => 'testaction_response' }; @@ -28,67 +29,97 @@ Catalyst::Controller::MessageDriven A Catalyst controller base class for use with Catalyst::Engine::Stomp, which handles YAML-serialized messages. A top-level "type" key in the -YAML determines the action dispatched to. +YAML determines the action dispatched to. + +=head1 METHODS + +=head2 begin + +Deserializes the request into C<< $c->stash->{request} >> + +=head2 default + +Dispatches to method named by the key C<< $c->stash->{request}->{type} >> + +=head2 end + +Serializes the response from C<< $c->stash->{response} >> =cut -sub begin : Private { - my ($self, $c) = @_; - - # Deserialize the request message - +__PACKAGE__->config( serializer => 'YAML' ); + +sub begin : Private { + my ($self, $c) = @_; + + # Deserialize the request message my $message; - eval { - my $body = $c->request->body; - $message = LoadFile( "$body" ); - }; - if ($@) { - # can't reply - reply_to is embedded in the message - $c->error("exception in deserialize: $@"); - } - else { - $c->stash->{request} = $message; - } + my $serializer = $self->config->{serializer}; + my $s = Data::Serializer->new( serializer => $serializer ); + eval { + my $body = $c->request->body; + open my $IN, "$body" or die "can't open temp file $body"; + $message = $s->raw_deserialize(do { local $/; <$IN> }); + }; + if ($@) { + # can't reply - reply_to is embedded in the message + $c->error("exception in deserialize: $@"); + } + else { + $c->stash->{request} = $message; + } } sub end : Private { - my ($self, $c) = @_; - - # Engine will send our reply based on the value of this header. - $c->response->headers->header( 'X-Reply-Address' => $c->stash->{request}->{reply_to} ); - - # Custom error handler - steal errors from catalyst and dump them into - # the stash, to get them serialized out as the reply. - if (scalar @{$c->error}) { - my $error = join "\n", @{$c->error}; - $c->stash->{response} = { status => 'ERROR', error => $error }; - $c->error(0); # clear errors, so our response isn't clobbered - } - - # Serialize the response - my $output; - eval { - $output = Dump( $c->stash->{response} ); - }; - if ($@) { - my $error = "exception in serialize: $@"; - $c->error($error); - $c->stash->{response} = { status => 'ERROR', error => $error }; - $output = Dump( $c->stash->{response} ); - } - - $c->response->output( $output ); + my ($self, $c) = @_; + + # Engine will send our reply based on the value of this header. + $c->response->headers->header( 'X-Reply-Address' => $c->stash->{request}->{reply_to} ); + + # The wire response + my $output; + + # Load a serializer + my $serializer = $self->config->{serializer}; + my $s = Data::Serializer->new( serializer => $serializer ); + + # Custom error handler - steal errors from catalyst and dump them into + # the stash, to get them serialized out as the reply. + if (scalar @{$c->error}) { + my $error = join "\n", @{$c->error}; + $c->stash->{response} = { status => 'ERROR', error => $error }; + $output = $s->serialize( $c->stash->{response} ); + $c->clear_errors; + $c->response->status(400); + } + + # Serialize the response + eval { + $output = $s->raw_serialize( $c->stash->{response} ); + }; + if ($@) { + my $error = "exception in serialize: $@"; + $c->stash->{response} = { status => 'ERROR', error => $error }; + $output = $s->serialize( $c->stash->{response} ); + $c->response->status(400); + } + + $c->response->output( $output ); } sub default : Private { - my ($self, $c) = @_; - - # Forward the request to the appropriate action, based on the - # message type. - my $action = $c->stash->{request}->{type}; - $c->forward($action, [$c->stash->{request}]); + my ($self, $c) = @_; + + # Forward the request to the appropriate action, based on the + # message type. + my $action = $c->stash->{request}->{type}; + if (defined $action) { + $c->forward($action, [$c->stash->{request}]); + } + else { + $c->error('no message type specified'); + } } __PACKAGE__->meta->make_immutable; -1;