File Coverage

blib/lib/IOC/Visitor/SearchForService.pm

Criterion	Covered	Total	%
statement	35	35	100.0
branch	10	10	100.0
condition	4	6	66.6
subroutine	9	9	100.0
pod	2	2	100.0
total	60	62	96.7

package IOC::Visitor::SearchForService;

use strict;
use warnings;

our $VERSION = '0.03';

use Scalar::Util qw(blessed);

use IOC::Interfaces;
use IOC::Exceptions;

use base 'IOC::Visitor';

sub new {
    my ($_class, $service_name) = @_;
    ($service_name)
        || throw IOC::InsufficientArguments "You must provide a name of a service to find";
    my $class = ref($_class) || $_class;
    my $visitor = {
        service_to_find => $service_name
        };
    bless($visitor, $class);
    return $visitor;
}

sub visit {
    my ($self, $container) = @_;
    (blessed($container) && $container->isa('IOC::Container'))
        || throw IOC::InsufficientArguments "You must provide an IOC::Container object to search";
    my $service_to_find = $self->{service_to_find};
    return $self->_recursiveSearch($container, $service_to_find);
}

sub _recursiveSearch {
    my ($self, $container, $service_to_find) = @_;
    # look through all the current services
    return $container->get($service_to_find) if $container->hasService($service_to_find);
    # if we have sub-containers, ...
    if ($container->hasSubContainers()) {
        # then loop through all the sub-containers
        foreach my $sub_container ($container->getAllSubContainers()) {
            my $service = $self->_recursiveSearch($sub_container, $service_to_find);
            return $service if defined $service;
        }
    }
    return undef;
}

1;

__END__