use Moo;
-has 'config' => (is => 'ro', trigger => sub {
- my ($self, $value) = @_;
- my %default = $self->_default_config;
- my @not = grep !exists $value->{$_}, keys %default;
- @{$value}{@not} = @default{@not};
-});
-
-sub _setup_default_config {
- my $class = shift;
- {
- no strict 'refs';
- if (${"${class}::_default_config"}{CODE}) {
- $class->_cannot_call_twice('_setup_default_config', 'default_config');
- }
+has 'config' => (
+ is => 'ro',
+ default => sub {
+ my ($self) = @_;
+ +{ $self->default_config }
+ },
+ trigger => sub {
+ my ($self, $value) = @_;
+ my %default = $self->default_config;
+ my @not = grep !exists $value->{$_}, keys %default;
+ @{$value}{@not} = @default{@not};
}
- my @defaults = (@_, $class->_default_config);
- {
- no strict 'refs';
- *{"${class}::_default_config"} = sub { @defaults };
- }
-}
+);
-sub _default_config { () }
-
-sub _construct_response_filter {
- my ($class, $code) = @_;
- my $self = do { no strict 'refs'; ${"${class}::self"} };
- require Web::Dispatch::Wrapper;
- Web::Dispatch::Wrapper->from_code(sub {
- my @result = $_[1]->($_[0]);
- if (@result) {
- $self->_run_with_self($code, @result);
- } else {
- @result;
- }
- });
-}
+sub default_config { () }
-sub _construct_redispatch {
- my ($class, $new_path) = @_;
- require Web::Dispatch::Wrapper;
- Web::Dispatch::Wrapper->from_code(sub {
- $_[1]->({ %{$_[0]}, PATH_INFO => $new_path });
- });
-}
-
-sub _build_dispatch_parser {
- require Web::Dispatch::Parser;
- return Web::Dispatch::Parser->new;
-}
+has '_dispatcher' => (is => 'lazy');
-sub _cannot_call_twice {
- my ($class, $method, $sub) = @_;
- my $error = "Cannot call ${method} twice for ${class}";
- if ($sub) {
- $error .= " - did you call Web::Simple's ${sub} export twice?";
- }
- die $error;
-}
-
-sub _setup_dispatcher {
- my ($class, $dispatcher) = @_;
- {
- no strict 'refs';
- if (${"${class}::_dispatcher"}{CODE}) {
- $class->_cannot_call_twice('_setup_dispatcher', 'dispatch');
- }
- }
- {
- no strict 'refs';
- *{"${class}::dispatch_request"} = $dispatcher;
- }
+sub _build__dispatcher {
+ my $self = shift;
+ require Web::Dispatch;
+ require Web::Simple::DispatchNode;
+ my $final = $self->_build_final_dispatcher;
+ Web::Dispatch->new(
+ app => sub { $self->dispatch_request(@_), $final },
+ node_class => 'Web::Simple::DispatchNode',
+ node_args => { app_object => $self }
+ );
}
sub _build_final_dispatcher {
[ 404, [ 'Content-type', 'text/plain' ], [ 'Not found' ] ]
}
-sub _run_with_self {
- my ($self, $run, @args) = @_;
- my $class = ref($self);
- no strict 'refs';
- local *{"${class}::self"} = \$self;
- $self->$run(@args);
-}
-
sub run_if_script {
- # ->as_psgi_app is true for require() but also works for plackup
- return $_[0]->as_psgi_app if caller(1);
+ # ->to_psgi_app is true for require() but also works for plackup
+ return $_[0]->to_psgi_app if caller(1);
my $self = ref($_[0]) ? $_[0] : $_[0]->new;
$self->run(@_);
}
sub _run_cgi {
my $self = shift;
require Plack::Server::CGI;
- Plack::Server::CGI->run($self->as_psgi_app);
+ Plack::Server::CGI->run($self->to_psgi_app);
}
sub _run_fcgi {
my $self = shift;
require Plack::Server::FCGI;
- Plack::Server::FCGI->run($self->as_psgi_app);
+ Plack::Server::FCGI->run($self->to_psgi_app);
}
-sub as_psgi_app {
+sub to_psgi_app {
my $self = ref($_[0]) ? $_[0] : $_[0]->new;
- require Web::Dispatch;
- require Web::Simple::DispatchNode;
- my $final = $self->_build_final_dispatcher;
- Web::Dispatch->new(
- app => sub { $self->dispatch_request(@_), $final },
- node_class => 'Web::Simple::DispatchNode',
- node_args => { app_object => $self }
- )->to_app;
+ $self->_dispatcher->to_app;
}
sub run {
my $request = GET($path);
my $response;
- Plack::Test::test_psgi($self->as_psgi_app, sub { $response = shift->($request) });
+ Plack::Test::test_psgi($self->to_psgi_app, sub { $response = shift->($request) });
print $response->as_string;
}
}
1;
+
+=head1 NAME
+
+Web::Simple::Application - A base class for your Web-Simple applications
+
+=head1 DESCRIPTION
+
+This is a base class for your L<Web::Simple> application. You probably don't
+need to construct this class yourself, since L<Web::Simple> does the 'heavy
+lifting' for you in that regards.
+
+=head1 METHODS
+
+This class exposes the follow public methods.
+
+=head2 default_config
+
+Provide configuration information to your application, for example:
+
+ sub default_config {
+ (
+ title => 'Bloggery',
+ posts_dir => $FindBin::Bin.'/posts',
+ );
+ }
+
+Now, C<$self> will have an attribute C<config> which will be set to a HashRef
+containing keys 'title' and 'posts_dir'.
+
+=head2 run_if_script
+
+In the case where you wish to run you L<Web::Simple> based application as a
+stand alone CGI application, you can simple do:
+
+ ## my_web_simple_app.pl
+ use MyWebSimpleApp::Web;
+ MyWebSimpleApp::Web->run_if_script.
+
+Or (even more simply) just inline the entire application:
+
+ ## my_web_simple_app.pl
+ #!/usr/bin/env perl
+ use Web::Simple 'HelloWorld';
+
+ {
+ package HelloWorld;
+
+ sub dispatch_request {
+ sub (GET) {
+ [ 200, [ 'Content-type', 'text/plain' ], [ 'Hello world!' ] ]
+ },
+ sub () {
+ [ 405, [ 'Content-type', 'text/plain' ], [ 'Method not allowed' ] ]
+ }
+ }
+ }
+
+ HelloWorld->run_if_script;
+
+=head2 to_psgi_app
+
+Given a L<Web::Simple> application root namespace, return it in a form suitable
+to run in inside a L<Plack> container, or in L<Plack::Builder> or in a C<*.psgi>
+file:
+
+ ## app.psgi
+ use strictures 1;
+ use Plack::Builder;
+ use MyWebSimpleApp::Web;
+
+ builder {
+ ## enable middleware
+ enable 'StackTrace';
+ enable 'Debug';
+
+ ## return application
+ MyWebSimpleApp::Web->to_psgi_app;
+ };
+
+This could be run via C<plackup>, etc. Please note the L<Plack::Builder> DSL
+is optional, if you are enabling L<Plack::Middleware> internally in your
+L<Web::Simple> application; your app.psgi could be as simple as:
+
+ use MyWebSimpleApp::Web;
+ MyWebSimpleApp::Web->to_psgi_app;
+
+As always, mix and match the pieces you actually need and remember the
+L<Web::Simple> philosophy of trying to keep it as minimal and simple as possible.
+
+=head2 run
+
+Used for running your application under stand-alone CGI and FCGI modes. Also
+useful for testing:
+
+ my $app = MyWebSimpleApp::Web->new;
+ my $c = HTTP::Request::AsCGI->new(@args)->setup;
+ $app->run;
+
+=head1 AUTHOR
+
+Matt S. Trout <mst@shadowcat.co.uk>
+
+=head1 CONTRIBUTORS
+
+None required yet. Maybe this module is perfect (hahahahaha ...).
+
+=head1 COPYRIGHT
+
+Copyright (c) 2009 the Web::Simple L</AUTHOR> and L</CONTRIBUTORS>
+as listed above.
+
+=head1 LICENSE
+
+This library is free software and may be distributed under the same terms
+as perl itself.
+
+=cut
projects / catagits/Web-Simple.git / blobdiff