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1 | # |
2 | # Catlyst::Action::Serialize.pm |
3 | # Created by: Adam Jacob, Marchex, <adam@marchex.com> |
4 | # |
5 | # $Id$ |
6 | |
7 | package Catalyst::Action::Serialize; |
8 | |
9 | use strict; |
10 | use warnings; |
11 | |
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12 | use base 'Catalyst::Action::SerializeBase'; |
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13 | use Module::Pluggable::Object; |
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14 | use Data::Dump qw(dump); |
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15 | |
16 | sub execute { |
17 | my $self = shift; |
18 | my ( $controller, $c ) = @_; |
19 | |
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20 | $self->NEXT::execute(@_); |
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21 | |
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22 | return 1 if $c->req->method eq 'HEAD'; |
23 | return 1 if length( $c->response->body ); |
24 | return 1 if scalar @{ $c->error }; |
25 | return 1 if $c->response->status =~ /^(?:204|3\d\d)$/; |
26 | |
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27 | my ( $sclass, $sarg, $content_type ) = |
28 | $self->_load_content_plugins( "Catalyst::Action::Serialize", |
29 | $controller, $c ); |
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30 | unless ( defined($sclass) ) { |
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31 | if ( defined($content_type) ) { |
32 | $c->log->debug("Could not find a serializer for $content_type"); |
33 | } else { |
34 | $c->log->debug( |
35 | "Could not find a serializer for an empty content type"); |
36 | } |
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37 | return 1; |
38 | } |
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39 | $c->log->debug( |
40 | "Serializing with $sclass" . ( $sarg ? " [$sarg]" : '' ) ); |
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41 | |
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42 | my $rc; |
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43 | if ( defined($sarg) ) { |
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44 | $rc = $sclass->execute( $controller, $c, $sarg ); |
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45 | } else { |
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46 | $rc = $sclass->execute( $controller, $c ); |
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47 | } |
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48 | if ( $rc eq 0 ) { |
49 | return $self->_unsupported_media_type( $c, $content_type ); |
50 | } elsif ( $rc ne 1 ) { |
51 | return $self->_serialize_bad_request( $c, $content_type, $rc ); |
52 | } |
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53 | |
54 | return 1; |
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55 | } |
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56 | |
57 | 1; |
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58 | |
59 | =head1 NAME |
60 | |
61 | Catalyst::Action::Serialize - Serialize Data in a Response |
62 | |
63 | =head1 SYNOPSIS |
64 | |
65 | package Foo::Controller::Bar; |
66 | |
67 | __PACKAGE__->config( |
68 | serialize => { |
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69 | 'default' => 'text/x-yaml', |
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70 | 'stash_key' => 'rest', |
71 | 'map' => { |
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72 | 'text/html' => [ 'View', 'TT', ], |
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73 | 'text/x-yaml' => 'YAML', |
74 | 'text/x-data-dumper' => [ 'Data::Serializer', 'Data::Dumper' ], |
75 | }, |
76 | } |
77 | ); |
78 | |
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79 | sub end :ActionClass('Serialize') {} |
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80 | |
81 | =head1 DESCRIPTION |
82 | |
83 | This action will serialize the body of an HTTP Response. The serializer is |
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84 | selected by introspecting the HTTP Requests content-type header. |
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85 | |
86 | It requires that your Catalyst controller have a "serialize" entry |
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87 | in it's configuration, which sets up the mapping between Content Type's |
88 | and Serialization classes. |
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89 | |
90 | The specifics of serializing each content-type is implemented as |
91 | a plugin to L<Catalyst::Action::Serialize>. |
92 | |
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93 | Typically, you would use this ActionClass on your C<end> method. However, |
94 | nothing is stopping you from choosing specific methods to Serialize: |
95 | |
96 | sub foo :Local :ActionClass('Serialize') { |
97 | .. populate stash with data .. |
98 | } |
99 | |
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100 | When you use this module, the request class will be changed to |
101 | L<Catalyst::Request::REST>. |
102 | |
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103 | =head1 CONFIGURATION |
104 | |
105 | =over 4 |
106 | |
107 | =item default |
108 | |
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109 | The Content-Type of the default Serialization format. This must be a |
110 | Content-Type associated with a plugin in the "map" section below. |
111 | |
112 | This is used if a requested content-type is not recognized. |
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113 | |
114 | =item stash_key |
115 | |
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116 | We will serialize the data that lives in this location in the stash. So |
117 | if the value is "rest", we will serialize the data under: |
118 | |
119 | $c->stash->{'rest'} |
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120 | |
121 | =item map |
122 | |
123 | Takes a hashref, mapping Content-Types to a given plugin. |
124 | |
125 | =back |
126 | |
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127 | =head1 HELPFUL PEOPLE |
128 | |
129 | Daisuke Maki pointed out that early versions of this Action did not play |
130 | well with others, or generally behave in a way that was very consistent |
131 | with the rest of Catalyst. |
132 | |
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133 | =head1 SEE ALSO |
134 | |
135 | You likely want to look at L<Catalyst::Controller::REST>, which implements |
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136 | a sensible set of defaults for doing a REST controller. |
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137 | |
138 | L<Catalyst::Action::Deserialize>, L<Catalyst::Action::REST> |
139 | |
140 | =head1 AUTHOR |
141 | |
142 | Adam Jacob <adam@stalecoffee.org>, with lots of help from mst and jrockway |
143 | |
144 | Marchex, Inc. paid me while I developed this module. (http://www.marchex.com) |
145 | |
146 | =head1 LICENSE |
147 | |
148 | You may distribute this code under the same terms as Perl itself. |
149 | |
150 | =cut |
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151 | |