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119
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1 use strict;
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2 package IMPL::Transform::Json;
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3
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4 package IMPL::Web::QueryHandler::JsonFormat;
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5 use base qw(IMPL::Web::QueryHandler);
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6 use Error qw(:try);
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7 use JSON;
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8
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9 sub Process {
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10 my ($this,$action,$nextHandler) = @_;
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11
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12 my $result;
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13 my $t = new IMPL::Transform::Json;
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14
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15 try {
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16 $result = $nextHandler->();
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17 $result = [$result] unless ref $result;
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18 } otherwise {
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19 my $err = shift;
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20 $result = { error => $err };
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21 };
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22
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23 $action->response->contentType('text/javascript');
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24
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25 my $hout = $action->response->streamBody;
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26 print $hout to_json( $t->Transform($result), {pretty => 1} );
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27 }
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28
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29 package IMPL::Transform::Json;
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30
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31 use base qw(IMPL::Transform);
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32 use IMPL::Class::Property;
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33 my %propListCache;
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34
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35 our %CTOR = (
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36 'IMPL::Transform' => sub {
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37 ARRAY => sub {
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38 my ($this,$object) = @_;
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39
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40 return [
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41 map { $this->Transform($_) } @$object
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42 ];
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43 },
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44 HASH => sub {
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45 my ($this,$object) = @_;
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46
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47 return {
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48 map { $_, $this->Transform($object->{$_}) } keys %$object
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49 };
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50 },
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51 'IMPL::Object::List' => sub {
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52 my ($this,$object) = @_;
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53
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54 return [
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55 map { $this->Transform($_) } @$object
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56 ];
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57 },
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58 'IMPL::Exception' => sub {
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59 my ($this,$object) = @_;
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60
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61 return {
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62 type => $object->type,
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63 message => $object->Message,
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64 arguments => $this->Transform(scalar $object->Args)
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65 };
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66 },
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67 -plain => sub {
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68 $_[1];
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69 },
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70 -default => sub {
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71 my ($this,$object) = @_;
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72
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73 return "$object" unless $object->isa('IMPL::Object::Abstract');
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74
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75 my $propList = $propListCache{ref $object};
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76 unless ( $propList ) {
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77 my %props = map {
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78 $_->Name, (ref $_->Mutators ? 0 : ($_->Mutators & prop_list))
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79 } $object->get_meta('IMPL::Class::PropertyInfo',sub { $_->Access == IMPL::Class::Member::MOD_PUBLIC and $_->Name !~ /^_/}, 1 );
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80
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81 $propListCache{ref $object} = $propList = \%props;
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82 }
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83
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84 return {
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85 map {
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86 $_, $propList->{$_} ? $this->Transform([$object->$_()]) : $this->Transform(scalar $object->$_());
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87 } keys %$propList
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88 };
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89 }
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90 }
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91 );
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92
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93 1; |
