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    return if $self->_view_handlers;

    $self->_view_handlers({});
    foreach my $class ($self->view_handlers()) {
        $self->_view_handlers->{$class} =  $class->new();
    }
}

=head2 view ClassName

Returns the Jifty view handler for C<ClassName>.

=cut

sub view {
    my $self = shift;
    my $class = shift;
    $self->setup_view_handlers;
    return $self->_view_handlers->{$class};
}

=head2 psgi_app_static

Returns a closure for L<PSGI> application that handles all static
content, including plugins.

=cut

sub psgi_app_static {
    my $self = shift;

    # XXX: this is no longer needed, however TestApp-Mason is having a
    # static::handler-less config
    my $view_handler = $self->view('Jifty::View::Static::Handler')
        or return;;

    require Plack::App::Cascade;
    require Plack::App::File;
    my $static = Plack::App::Cascade->new;

    my $app_class = Jifty->app_class;

    $static->add( $app_class->psgi_app_static )
        if $app_class->can('psgi_app_static');

    $static->add(
        Plack::App::File->new(
            root => Jifty::Util->absolute_path(
                Jifty->config->framework('Web')->{StaticRoot}
            )
        )->to_app
    );

    for ( grep { defined $_ } map { $_->psgi_app_static } Jifty->plugins ) {
        $static->add( $_ );
    }

    $static->add( Plack::App::File->new
            ( root => Jifty->config->framework('Web')->{DefaultStaticRoot} )->to_app );

    # the buffering and unsetting of psgi.streaming is to vivify the
    # responded res from the $static cascade app.
    builder {
        enable 'Plack::Middleware::ConditionalGET';
        enable
            sub { my $app = shift;
                  sub { my $env = shift;
                        $env->{'psgi.streaming'} = 0;
                        my $res = $app->($env);
                        # skip streamy response
                        return $res unless ref($res) eq 'ARRAY' && $res->[2];
                        my $h = Plack::Util::headers($res->[1]);;
                        $h->set( 'Cache-Control' => 'max-age=31536000, public' );
                        $h->set( 'Expires' => HTTP::Date::time2str( time() + 31536000 ) );
                        $res;
                    };
              };
        enable 'Plack::Middleware::BufferedStreaming';
        $static;
    };
}

=head2 psgi_app

Returns a closure for L<PSGI> application.

=cut

sub psgi_app {
    my $self = shift;

    my $app = sub { $self->handle_request(@_) };
    my $static = $self->psgi_app_static;

    $app = builder {
        mount '/static' => $static;
        mount '/'       => $app
    }
        if Jifty->config->framework("Web")->{PSGIStatic} && $static;

    # CAS wrapper
    $app = Jifty::CAS->wrap($app);

    # allow plugin to wrap $app
    for ( Jifty->plugins ) {
        $app = $_->wrap($app);
    }

    return $app;
}

=head2 handle_request

When your server process (be it Jifty-internal, FastCGI or anything
else) wants to handle a request coming in from the outside world, you
should call C<handle_request>.

=cut

sub handle_request {
    my ($self, $env) = @_;
    my $req = Plack::Request->new($env);
    my $response;

    $self->setup_view_handlers;

    $self->call_trigger('before_request', $req);