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1 | package Catalyst::IOC; |
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2 | use strict; |
3 | use warnings; |
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4 | use Bread::Board qw/depends_on/; |
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5 | use Catalyst::IOC::ConstructorInjection; |
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6 | |
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7 | # FIXME - All of these imports need to get the importing package |
8 | # as the customise_container and current_container variables |
9 | # NEED to be in the containers package so there can be multiple |
10 | # containers.. |
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11 | use Sub::Exporter -setup => { |
12 | exports => [qw/ |
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13 | depends_on |
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14 | component |
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15 | model |
16 | container |
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17 | /], |
18 | groups => { default => [qw/ |
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19 | depends_on |
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20 | component |
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21 | model |
22 | container |
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23 | /]}, |
24 | }; |
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25 | #use Sub::Exporter -setup => [ |
26 | # qw( |
27 | # Bread::Board::as |
28 | # Bread::Board::container |
29 | # Bread::Board::depends_on |
30 | # Bread::Board::service |
31 | # Bread::Board::alias |
32 | # Bread::Board::wire_names |
33 | # Bread::Board::include |
34 | # Bread::Board::typemap |
35 | # Bread::Board::infer |
36 | # ) |
37 | #]; |
38 | # I'm probably doing it wrong. |
39 | # Anyway, I'll just use Moose::Exporter. Do I really have to use Sub::Exporter? |
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40 | #use Moose::Exporter; |
41 | #Moose::Exporter->setup_import_methods( |
42 | # also => ['Bread::Board'], |
43 | #); |
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44 | our $customise_container; |
45 | our $current_container; |
46 | |
47 | sub container (&) { |
48 | my $code = shift; |
49 | $customise_container = sub { |
50 | warn("In customise container"); |
51 | local $current_container = shift(); |
52 | $code->(); |
53 | }; |
54 | } |
55 | |
56 | sub model (&) { |
57 | my $code = shift; |
58 | local $current_container = $current_container->get_sub_container('model'); |
59 | $code->(); |
60 | } |
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61 | |
62 | sub component { |
63 | my ($name, %args) = @_; |
64 | $args{dependencies} ||= {}; |
65 | $args{dependencies}{application_name} = depends_on( '/application_name' ); |
66 | |
67 | # FIXME - check $args{type} here! |
68 | |
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69 | my $component_name = join '::', ( |
70 | $current_container->resolve(service => '/application_name'), |
71 | ucfirst($current_container->name), |
72 | $name |
73 | ); |
74 | |
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75 | my $service = Catalyst::IOC::ConstructorInjection->new( |
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76 | %args, |
77 | name => $name, |
78 | lifecycle => 'Singleton', |
79 | # XX FIXME - needs to become possible to intuit catalyst_component_name |
80 | # from dependencies (like config) |
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81 | catalyst_component_name => $component_name, |
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82 | ); |
83 | $current_container->add_service($service); |
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84 | } |
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85 | |
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86 | 1; |
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87 | |
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88 | # FIXME - should the code example below be on this file or Catalyst::IOC::Container? |
89 | |
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90 | __END__ |
91 | |
92 | =pod |
93 | |
94 | =head1 NAME |
95 | |
96 | Catalyst::IOC - IOC for Catalyst, based on Bread::Board |
97 | |
98 | =head1 SYNOPSIS |
99 | |
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100 | package MyApp::Container; |
101 | use Catalyst::IOC; |
102 | |
103 | sub BUILD { |
104 | my $self = shift; |
105 | |
106 | container $self => as { |
107 | container model => as { |
108 | |
109 | # default component |
110 | component Foo => (); |
111 | |
112 | # model Bar needs model Foo to be built before |
113 | # and Bar's constructor gets Foo as a parameter |
114 | component Bar => ( dependencies => [ |
115 | depends_on('/model/Foo'), |
116 | ]); |
117 | |
118 | # Baz is rebuilt once per HTTP request |
119 | component Baz => ( lifecycle => 'Request' ); |
120 | |
121 | # built only once per application life time |
122 | component Quux => ( lifecycle => 'Singleton' ); |
123 | |
124 | # built once per app life time and uses an external model, |
125 | # outside the default directory |
126 | # no need for wrappers or Catalyst::Model::Adaptor |
127 | component Fnar => ( |
128 | lifecycle => 'Singleton', |
129 | class => 'My::External::Class', |
130 | ); |
131 | }; |
132 | } |
133 | } |
134 | |
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135 | =head1 DESCRIPTION |
136 | |
137 | =head1 METHODS |
138 | |
139 | =head1 AUTHORS |
140 | |
141 | Catalyst Contributors, see Catalyst.pm |
142 | |
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143 | =head1 SEE ALSO |
144 | |
145 | L<Bread::Board> |
146 | |
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147 | =head1 COPYRIGHT |
148 | |
149 | This library is free software. You can redistribute it and/or modify it under |
150 | the same terms as Perl itself. |
151 | |
152 | =cut |