Commit | Line | Data |
69b45b7d |
1 | package MooseX::Storage::Util; |
2 | use Moose qw(confess blessed); |
3 | |
4 | use MooseX::Storage::Engine (); |
6f491fae |
5 | use utf8 (); |
69b45b7d |
6 | |
6f491fae |
7 | our $VERSION = '0.03'; |
69b45b7d |
8 | our $AUTHORITY = 'cpan:STEVAN'; |
9 | |
10 | sub peek { |
11 | my ($class, $data, %options) = @_; |
12 | |
13 | if (exists $options{'format'}) { |
14 | |
15 | my $inflater = $class->can('_inflate_' . lc($options{'format'})); |
16 | |
17 | (defined $inflater) |
18 | || confess "No inflater found for " . $options{'format'}; |
19 | |
20 | $data = $class->$inflater($data); |
21 | } |
22 | |
23 | (ref($data) && ref($data) eq 'HASH' && !blessed($data)) |
24 | || confess "The data has to be a HASH reference, but not blessed"; |
25 | |
26 | $options{'key'} ||= $MooseX::Storage::Engine::CLASS_MARKER; |
27 | |
28 | return $data->{$options{'key'}}; |
29 | |
30 | } |
31 | |
32 | sub _inflate_json { |
33 | my ($class, $json) = @_; |
34 | |
35 | require JSON::Any; |
021c860a |
36 | eval { JSON::Any->import }; |
37 | confess "Could not load JSON module because : $@" if $@; |
69b45b7d |
38 | |
6f491fae |
39 | utf8::encode($json) if utf8::is_utf8($json); |
40 | |
69b45b7d |
41 | my $data = eval { JSON::Any->jsonToObj($json) }; |
42 | if ($@) { |
43 | confess "There was an error when attempting to peek at JSON: $@"; |
44 | } |
45 | |
46 | return $data; |
47 | } |
48 | |
49 | sub _inflate_yaml { |
50 | my ($class, $yaml) = @_; |
51 | |
52 | require Best; |
021c860a |
53 | eval { Best->import([[ qw[YAML::Syck YAML] ]]) }; |
54 | confess "Could not load YAML module because : $@" if $@; |
69b45b7d |
55 | |
56 | my $inflater = Best->which('YAML::Syck')->can('Load'); |
57 | |
58 | (defined $inflater) |
59 | || confess "Could not load the YAML inflator"; |
60 | |
61 | my $data = eval { $inflater->($yaml) }; |
62 | if ($@) { |
63 | confess "There was an error when attempting to peek at YAML : $@"; |
64 | } |
65 | return $data; |
66 | } |
67 | |
68 | 1; |
69 | |
70 | __END__ |
71 | |
72 | =pod |
73 | |
74 | =head1 NAME |
75 | |
76 | MooseX::Storage::Util - A MooseX::Storage swiss-army chainsaw |
77 | |
78 | =head1 DESCRIPTION |
79 | |
80 | This module provides a set of tools, some sharp and focused, |
81 | others more blunt and crude. But no matter what, they are useful |
82 | bits to have around when dealing with MooseX::Storage code. |
83 | |
84 | =head1 METHODS |
85 | |
86 | All the methods in this package are class methods and should |
87 | be called appropriately. |
88 | |
89 | =over 4 |
90 | |
91 | =item B<peek ($data, %options)> |
92 | |
93 | This method will help you to verify that the serialized class you |
94 | have gotten is what you expect it to be before you actually |
95 | unfreeze/unpack it. |
96 | |
97 | The C<$data> can be either a perl HASH ref or some kind of serialized |
98 | data (JSON, YAML, etc.). |
99 | |
100 | The C<%options> are as follows: |
101 | |
102 | =over 4 |
103 | |
104 | =item I<format> |
105 | |
106 | If this is left blank, we assume that C<$data> is a plain perl HASH ref |
107 | otherwise we attempt to inflate C<$data> based on the value of this option. |
108 | |
109 | Currently only JSON and YAML are supported here. |
110 | |
111 | =item I<key> |
112 | |
113 | The default is to try and extract the class name, but if you want to check |
114 | another key in the data, you can set this option. It will return the value |
115 | found in the key for you. |
116 | |
117 | =back |
118 | |
119 | =back |
120 | |
121 | =head2 Introspection |
122 | |
123 | =over 4 |
124 | |
125 | =item B<meta> |
126 | |
127 | =back |
128 | |
129 | =head1 TODO |
130 | |
131 | Add more stuff to this module :) |
132 | |
133 | =head1 BUGS |
134 | |
135 | All complex software has bugs lurking in it, and this module is no |
136 | exception. If you find a bug please either email me, or add the bug |
137 | to cpan-RT. |
138 | |
139 | =head1 AUTHOR |
140 | |
141 | Stevan Little E<lt>stevan.little@iinteractive.comE<gt> |
142 | |
143 | =head1 COPYRIGHT AND LICENSE |
144 | |
145 | Copyright 2007 by Infinity Interactive, Inc. |
146 | |
147 | L<http://www.iinteractive.com> |
148 | |
149 | This library is free software; you can redistribute it and/or modify |
150 | it under the same terms as Perl itself. |
151 | |
152 | =cut |