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1 | package Catalyst::IOC::ConstructorInjection; |
2 | use Moose; |
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3 | use Bread::Board::Dependency; |
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4 | use Try::Tiny; |
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5 | use Catalyst::Utils (); |
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6 | |
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7 | extends 'Bread::Board::ConstructorInjection'; |
8 | |
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9 | sub BUILD { |
10 | my $self = shift; |
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11 | $self->add_dependency( |
12 | __catalyst_config => Bread::Board::Dependency->new( |
13 | service_path => '/config' |
14 | ) |
15 | ); |
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16 | } |
17 | |
18 | has catalyst_component_name => ( |
19 | is => 'ro', |
20 | ); |
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21 | |
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22 | has config => ( |
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23 | init_arg => undef, |
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24 | is => 'ro', |
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25 | isa => 'HashRef', |
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26 | writer => '_set_config', |
27 | clearer => '_clear_config', |
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28 | ); |
29 | |
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30 | around resolve_dependencies => sub { |
31 | my ($orig, $self, @args) = @_; |
32 | my %deps = $self->$orig(@args); |
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33 | my $app_config = delete $deps{__catalyst_config}; |
34 | my $conf_key = Catalyst::Utils::class2classsuffix($self->catalyst_component_name); |
35 | $self->_set_config($app_config->{$conf_key} || {}); |
36 | return %deps; |
37 | }; |
38 | |
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39 | sub get { |
40 | my $self = shift; |
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41 | my $component = $self->class; |
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42 | |
43 | my $params = $self->params; |
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44 | my %config = (%{ $self->config || {} }, %{ $params }); |
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45 | $self->_clear_config; |
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46 | |
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47 | my $app = $self->param('catalyst_application'); |
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48 | |
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49 | # Stash catalyst_component_name in the config here, so that custom COMPONENT |
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50 | # methods also pass it. |
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51 | $config{catalyst_component_name} = $self->catalyst_component_name; |
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52 | |
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53 | unless ( $component->can( 'COMPONENT' ) ) { |
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54 | # FIXME - make some deprecation warnings |
55 | return $component; |
56 | } |
57 | |
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58 | my $instance; |
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59 | try { |
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60 | $instance = $component->COMPONENT( $app, \%config ); |
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61 | } |
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62 | catch { |
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63 | Catalyst::Exception->throw( |
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64 | message => qq/Couldn't instantiate component "$component", "$_"/ |
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65 | ); |
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66 | }; |
67 | |
68 | return $instance |
69 | if blessed $instance; |
70 | |
71 | my $metaclass = Moose::Util::find_meta($component); |
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72 | my $method_meta = $metaclass->find_method_by_name('COMPONENT'); |
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73 | my $component_method_from = $method_meta->associated_metaclass->name; |
74 | my $value = defined($instance) ? $instance : 'undef'; |
75 | Catalyst::Exception->throw( |
76 | message => |
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77 | qq/Couldn't instantiate component "$component", COMPONENT method (from $component_method_from) didn't return an object-like value (value was $value)./ |
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78 | ); |
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79 | } |
80 | |
81 | __PACKAGE__->meta->make_immutable; |
82 | |
83 | no Moose; 1; |
84 | |
85 | __END__ |
86 | |
87 | =pod |
88 | |
89 | =head1 NAME |
90 | |
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91 | Catalyst::IOC::ConstructorInjection |
92 | |
93 | =head1 SYNOPSIS |
94 | |
95 | =head1 DESCRIPTION |
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96 | |
97 | =head1 AUTHORS |
98 | |
99 | Catalyst Contributors, see Catalyst.pm |
100 | |
101 | =head1 COPYRIGHT |
102 | |
103 | This library is free software. You can redistribute it and/or modify it under |
104 | the same terms as Perl itself. |
105 | |
106 | =cut |