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pod |
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code |
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31
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use strictures; |
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2
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3
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package WebService::GoogleAPI::Client::Discovery; |
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5
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our $VERSION = '0.27'; # VERSION |
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7
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# ABSTRACT: Google API discovery service |
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9
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10
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3
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775
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use Moo; |
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3
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9
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3
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27
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3
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1086
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use Carp; |
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3
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27
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3
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195
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12
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3
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3
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26
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use WebService::GoogleAPI::Client::UserAgent; |
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10
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3
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21
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13
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3
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3
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104
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use List::Util qw/uniq reduce/; |
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3
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7
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3
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307
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14
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3
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3
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1694
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use List::SomeUtils qw/pairwise/; |
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3
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29084
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3
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267
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15
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3
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3
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27
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use Data::Dump qw/pp/; |
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3
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8
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3
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148
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16
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3
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3
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1309
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use CHI; |
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3
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75239
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3
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8541
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18
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has ua => ( |
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is => 'rw', |
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default => sub { WebService::GoogleAPI::Client::UserAgent->new } |
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); |
22
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has debug => (is => 'rw', default => 0); |
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has 'chi' => ( |
24
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is => 'rw', |
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default => sub { CHI->new(driver => 'File', namespace => __PACKAGE__) }, |
26
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lazy => 1 |
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); ## i believe that this gives priority to param if provided ? |
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has 'stats' => is => 'rw', |
29
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default => sub { { network => { get => 0 }, cache => { get => 0 } } }; |
30
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31
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32
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sub get_with_cache { |
33
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32
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32
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1
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114
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my ($self, $key, $force, $authorized) = @_; |
34
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35
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32
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100
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906
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my $expiration = $self->chi->get_expires_at($key) // 0; |
36
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37
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32
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21495
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my $will_expire = $expiration - time(); |
38
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32
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100
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100
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225
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if ($will_expire > 0 && not $force) { |
39
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24
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50
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166
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carp "discovery_data cached data expires in $will_expire seconds" |
40
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if $self->debug > 2; |
41
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24
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631
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my $ret = $self->chi->get($key); |
42
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24
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50
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43213
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croak 'was expecting a HASHREF!' unless ref $ret eq 'HASH'; |
43
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24
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149
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$self->stats->{cache}{get}++; |
44
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24
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177
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return $ret; |
45
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} else { |
46
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8
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20
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my $ret; |
47
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8
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100
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29
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if ($authorized) { |
48
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1
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10
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$ret = $self->ua->validated_api_query($key); |
49
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1
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18
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$self->stats->{network}{authorized}++; |
50
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} else { |
51
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7
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127
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$ret = $self->ua->get($key)->res; |
52
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} |
53
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8
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50
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1735968
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if ($ret->is_success) { |
54
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8
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193
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my $all = $ret->json; |
55
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8
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1324049
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$self->stats->{network}{get}++; |
56
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8
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487
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$self->chi->set($key, $all, '30d'); |
57
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8
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37297
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return $all; |
58
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} else { |
59
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0
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0
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0
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0
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if ($ret->code == 403 && !$authorized) { |
60
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0
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0
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return $self->get_with_cache($key, $force, 1); |
61
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} |
62
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0
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0
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croak $ret->message; |
63
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} |
64
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} |
65
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0
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0
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return {}; |
66
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} |
67
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68
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69
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12
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12
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0
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220119
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sub discover_key {'https://www.googleapis.com/discovery/v1/apis'} |
70
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71
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sub discover_all { |
72
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10
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10
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1
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450200
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my $self = shift; |
73
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10
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58
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$self->get_with_cache($self->discover_key, @_); |
74
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} |
75
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76
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#TODO- double triple check that we didn't break anything with the |
77
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#hashref change |
78
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79
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80
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#TODO- maybe cache this on disk too? |
81
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my $available; |
82
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83
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sub _invalidate_available { |
84
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1
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1
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3
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$available = undef; |
85
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} |
86
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87
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sub available_APIs { |
88
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89
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#cache this crunch |
90
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100
|
100
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100
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1
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420352
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return $available if $available; |
91
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92
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3
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9
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my ($self) = @_; |
93
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3
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15
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my $d_all = $self->discover_all; |
94
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3
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50
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22
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croak 'no items in discovery data' unless defined $d_all->{items}; |
95
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96
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#grab only entries with the four keys we want |
97
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#and strip other keys |
98
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3
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18
|
my @keys = qw/name version documentationLink discoveryRestUrl/; |
99
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3
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8
|
my @relevant; |
100
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3
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8
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for my $i (@{ $d_all->{items} }) { |
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3
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15
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101
|
1228
|
100
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2102
|
next unless @keys == grep { exists $i->{$_} } @keys; |
|
4912
|
|
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|
9432
|
|
102
|
1225
|
|
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|
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1852
|
push @relevant, { %{$i}{@keys} }; |
|
1225
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|
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4087
|
|
103
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} |
104
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105
|
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|
|
my $reduced = reduce { |
106
|
1225
|
|
|
1225
|
|
1921
|
for my $key (qw/version documentationLink discoveryRestUrl/) { |
107
|
3675
|
|
100
|
|
|
14647
|
$a->{ $b->{name} }->{$key} //= []; |
108
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3675
|
|
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|
|
5306
|
push @{ $a->{ $b->{name} }->{$key} }, $b->{$key}; |
|
3675
|
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9438
|
|
109
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|
} |
110
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1225
|
|
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1879
|
$a; |
111
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3
|
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|
77
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} {}, @relevant; |
112
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113
|
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|
|
#store it away globally |
114
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3
|
|
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|
|
1264
|
$available = $reduced; |
115
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|
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} |
116
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117
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118
|
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|
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sub augment_discover_all_with_unlisted_experimental_api { |
119
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0
|
|
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0
|
0
|
0
|
my ($self, $api_spec) = @_; |
120
|
0
|
|
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|
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0
|
carp <
|
121
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|
|
This lengthy function name (augment_discover_all_with_unlisted_experimental_api) |
122
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|
|
will be removed soon. Please use 'augment_with' instead. |
123
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|
|
DEPRECATION |
124
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0
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0
|
$self->augment_with($api_spec); |
125
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|
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} |
126
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127
|
|
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|
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sub augment_with { |
128
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1
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|
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1
|
1
|
230629
|
my ($self, $api_spec) = @_; |
129
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130
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1
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6
|
my $all = $self->discover_all(); |
131
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132
|
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|
|
## fail if any of the expected fields are not provided |
133
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1
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|
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7
|
for my $field ( |
134
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|
|
qw/version title description id kind documentationLink |
135
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discoveryRestUrl name/ |
136
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) { |
137
|
8
|
50
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23
|
if (not defined $api_spec->{$field}) { |
138
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0
|
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0
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carp("required $field in provided api spec missing"); |
139
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|
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} |
140
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} |
141
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142
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1
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|
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6
|
push @{ $all->{items} }, $api_spec; |
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1
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4
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143
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1
|
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30
|
$self->chi->set($self->discover_key, $all, '30d'); |
144
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1
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|
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|
|
2535
|
$self->_invalidate_available; |
145
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1
|
|
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421
|
return $all; |
146
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} |
147
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148
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149
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150
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sub service_exists { |
151
|
43
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43
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1
|
5212
|
my ($self, $api) = @_; |
152
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43
|
50
|
|
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|
134
|
return unless $api; |
153
|
43
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140
|
return $self->available_APIs->{$api}; |
154
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} |
155
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156
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157
|
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|
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sub available_versions { |
158
|
28
|
|
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28
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1
|
3154
|
my ($self, $api) = @_; |
159
|
28
|
50
|
|
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|
80
|
return [] unless $api; |
160
|
28
|
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100
|
|
|
75
|
return $self->available_APIs->{$api}->{version} // []; |
161
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|
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} |
162
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163
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164
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sub latest_stable_version { |
165
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23
|
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23
|
1
|
2014
|
my ($self, $api) = @_; |
166
|
23
|
50
|
|
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|
87
|
return '' unless $api; |
167
|
23
|
|
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|
|
78
|
my $versions = $self->available_versions($api); |
168
|
23
|
50
|
|
|
|
88
|
return '' unless $versions; |
169
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23
|
50
|
|
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47
|
return '' unless @{$versions} > 0; |
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23
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75
|
|
170
|
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171
|
|
|
|
|
|
|
#remove alpha or beta versions |
172
|
23
|
|
|
|
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64
|
my @stable = grep { !/beta|alpha/ } @$versions; |
|
59
|
|
|
|
|
370
|
|
173
|
23
|
|
50
|
|
|
139
|
return $stable[-1] || ''; |
174
|
|
|
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|
|
} |
175
|
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176
|
|
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177
|
|
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|
|
sub process_api_version { |
178
|
28
|
|
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28
|
1
|
14659
|
my ($self, $params) = @_; |
179
|
|
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|
|
180
|
|
|
|
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|
|
# scalar parameter not hashref - so assume is intended to be $params->{api} |
181
|
28
|
100
|
|
|
|
139
|
$params = { api => $params } if ref $params eq ''; |
182
|
|
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|
183
|
28
|
50
|
|
|
|
114
|
croak "'api' must be defined" unless $params->{api}; |
184
|
|
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|
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185
|
|
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|
|
## trim any resource, method or version details in api id |
186
|
28
|
100
|
|
|
|
145
|
if ($params->{api} =~ /([^:]+):(v[^\.]+)/ixsm) { |
187
|
3
|
|
|
|
|
36
|
$params->{api} = $1; |
188
|
3
|
|
|
|
|
15
|
$params->{version} = $2; |
189
|
|
|
|
|
|
|
} |
190
|
28
|
100
|
|
|
|
127
|
if ($params->{api} =~ /^(.*?)\./xsm) { |
191
|
10
|
|
|
|
|
40
|
$params->{api} = $1; |
192
|
|
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|
|
|
|
} |
193
|
|
|
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|
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194
|
28
|
100
|
|
|
|
94
|
unless ($self->service_exists($params->{api})) { |
195
|
2
|
|
|
|
|
428
|
croak "$params->{api} does not seem to be a valid Google API"; |
196
|
|
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|
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|
|
} |
197
|
|
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198
|
26
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$params->{version} //= $self->latest_stable_version($params->{api}); |
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return $params; |
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} |
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sub get_api_discovery_for_api_id { |
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carp <
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This long method name (get_api_discovery_for_api_id) is being deprecated |
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in favor of get_api_document. Please switch your code soon |
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DEPRECATION |
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shift->get_api_document(@_); |
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} |
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sub get_api_document { |
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my ($self, $arg) = @_; |
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my $params = $self->process_api_version($arg); |
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my $apis = $self->available_APIs(); |
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my $api = $apis->{ $params->{api} }; |
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croak "No versions found for $params->{api}" unless $api->{version}; |
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my @versions = @{ $api->{version} }; |
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my @urls = @{ $api->{discoveryRestUrl} }; |
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my ($url) = pairwise { $a eq $params->{version} ? $b : () } @versions, @urls; |
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croak "Couldn't find correct url for $params->{api} $params->{version}" |
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unless $url; |
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$self->get_with_cache($url); |
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} |
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#TODO- HERE - we are here in refactoring |
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sub _extract_resource_methods_from_api_spec { |
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my ($self, $tree, $api_spec, $ret) = @_; |
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$ret = {} unless defined $ret; |
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croak("ret not a hash - $tree, $api_spec, $ret") unless ref($ret) eq 'HASH'; |
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if (defined $api_spec->{methods} && ref($api_spec->{methods}) eq 'HASH') { |
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192
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foreach my $method (keys %{ $api_spec->{methods} }) { |
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408
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$ret->{"$tree.$method"} = $api_spec->{methods}{$method} |
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2696
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if ref($api_spec->{methods}{$method}) eq 'HASH'; |
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} |
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} |
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364
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if (defined $api_spec->{resources}) { |
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83
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foreach my $resource (keys %{ $api_spec->{resources} }) { |
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218
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245
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## NB - recursive traversal down tree of api_spec resources |
246
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467
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$self->_extract_resource_methods_from_api_spec("$tree.$resource", $api_spec->{resources}{$resource}, $ret); |
247
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} |
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} |
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return $ret; |
250
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} |
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253
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254
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sub extract_method_discovery_detail_from_api_spec { |
255
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0
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0
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0
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0
|
carp <
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256
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This rather long method name (extract_method_discovery_detail_from_api_spec) |
257
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is being deprecated in favor of get_method_details. Please switch soon |
258
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|
DEPRECATION |
259
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0
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0
|
shift->get_method_details(@_); |
260
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} |
261
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262
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sub get_method_details { |
263
|
11
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11
|
1
|
562
|
my ($self, $tree, $api_version) = @_; |
264
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|
## where tree is the method in format from _extract_resource_methods_from_api_spec() like projects.models.versions.get |
265
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|
## the root is the api id - further '.' sep levels represent resources until the tailing label that represents the method |
266
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11
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50
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|
44
|
croak 'You must ask for a method!' unless defined $tree; |
267
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268
|
11
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92
|
my @nodes = split /\./smx, $tree; |
269
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11
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50
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60
|
croak( |
270
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|
|
"tree structure '$tree' must contain at least 2 nodes including api id, [list of hierarchical resources ] and method - not " |
271
|
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|
|
. scalar(@nodes)) |
272
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|
unless @nodes > 1; |
273
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274
|
11
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36
|
my $api_id = shift(@nodes); ## api was head |
275
|
11
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29
|
my $method = pop(@nodes); ## method was tail |
276
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277
|
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|
|
## split out version if is defined as part of $tree |
278
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|
|
## trim any resource, method or version details in api id |
279
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|
|
## we have already isolated head from api tree children |
280
|
11
|
100
|
|
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|
60
|
if ($api_id =~ /([^:]+):([^\.]+)$/ixsm) { |
281
|
2
|
|
|
|
|
7
|
$api_id = $1; |
282
|
2
|
|
|
|
|
7
|
$api_version = $2; |
283
|
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|
|
} |
284
|
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|
285
|
|
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|
|
|
|
## handle incorrect api_id |
286
|
11
|
50
|
|
|
|
61
|
if (!$self->service_exists($api_id)) { |
287
|
0
|
|
|
|
|
0
|
croak("unable to confirm that '$api_id' is a valid Google API service id"); |
288
|
|
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|
|
|
|
} |
289
|
|
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|
290
|
11
|
100
|
|
|
|
66
|
$api_version = $self->latest_stable_version($api_id) unless $api_version; |
291
|
|
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|
|
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|
292
|
|
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|
293
|
|
|
|
|
|
|
## TODO: confirm that spec available for api version |
294
|
11
|
|
|
|
|
71
|
my $api_spec = $self->get_api_document({ api => $api_id, version => $api_version }); |
295
|
|
|
|
|
|
|
|
296
|
|
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|
297
|
|
|
|
|
|
|
## we use the schemas to substitute into '$ref' keyed placeholders |
298
|
11
|
|
|
|
|
38
|
my $schemas = {}; |
299
|
11
|
|
|
|
|
33
|
foreach my $schema_key (sort keys %{ $api_spec->{schemas} }) { |
|
11
|
|
|
|
|
716
|
|
300
|
935
|
|
|
|
|
2064
|
$schemas->{$schema_key} = $api_spec->{'schemas'}{$schema_key}; |
301
|
|
|
|
|
|
|
} |
302
|
|
|
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|
|
|
|
303
|
|
|
|
|
|
|
## recursive walk through the structure in _fix_ref |
304
|
|
|
|
|
|
|
## substitute the schema keys into the total spec to include |
305
|
|
|
|
|
|
|
## '$ref' values within the schema structures themselves |
306
|
|
|
|
|
|
|
## including within the schema spec structures (NB assumes no cyclic structures ) |
307
|
|
|
|
|
|
|
## otherwise would could recursive chaos |
308
|
11
|
|
|
|
|
106
|
my $api_spec_fix |
309
|
|
|
|
|
|
|
= $self->_fix_ref($api_spec, $schemas); ## first level ( '$ref' in the method params and return values etc ) |
310
|
11
|
|
|
|
|
51
|
$api_spec = $self->_fix_ref($api_spec_fix, $schemas) |
311
|
|
|
|
|
|
|
; ## second level ( '$ref' in the interpolated schemas from first level ) |
312
|
|
|
|
|
|
|
|
313
|
|
|
|
|
|
|
## now extract all the methods (recursive ) |
314
|
11
|
|
|
|
|
1988
|
my $all_api_methods = $self->_extract_resource_methods_from_api_spec("$api_id:$api_version", $api_spec); |
315
|
|
|
|
|
|
|
|
316
|
11
|
100
|
|
|
|
71
|
unless (defined $all_api_methods->{$tree}) { |
317
|
9
|
|
|
|
|
30
|
$all_api_methods = $self->_extract_resource_methods_from_api_spec($api_id, $api_spec); |
318
|
|
|
|
|
|
|
} |
319
|
11
|
100
|
|
|
|
72
|
if ($all_api_methods->{$tree}) { |
320
|
|
|
|
|
|
|
|
321
|
|
|
|
|
|
|
#add in the global parameters to the endpoint, |
322
|
|
|
|
|
|
|
#stored in the top level of the api_spec |
323
|
|
|
|
|
|
|
# TODO - why are we mutating the main hash? |
324
|
|
|
|
|
|
|
$all_api_methods->{$tree}{parameters} |
325
|
10
|
|
|
|
|
35
|
= { %{ $all_api_methods->{$tree}{parameters} }, %{ $api_spec->{parameters} } }; |
|
10
|
|
|
|
|
49
|
|
|
10
|
|
|
|
|
148
|
|
326
|
10
|
|
|
|
|
19160
|
return $all_api_methods->{$tree}; |
327
|
|
|
|
|
|
|
} |
328
|
|
|
|
|
|
|
|
329
|
1
|
|
|
|
|
288
|
croak("Unable to find method detail for '$tree' within Google Discovery Spec for $api_id version $api_version"); |
330
|
|
|
|
|
|
|
} |
331
|
|
|
|
|
|
|
######################################################## |
332
|
|
|
|
|
|
|
|
333
|
|
|
|
|
|
|
######################################################## |
334
|
|
|
|
|
|
|
######################################################## |
335
|
|
|
|
|
|
|
|
336
|
|
|
|
|
|
|
#=head2 C |
337
|
|
|
|
|
|
|
# |
338
|
|
|
|
|
|
|
#This sub walks through the structure and replaces any hashes keyed with '$ref' with |
339
|
|
|
|
|
|
|
#the value defined in $schemas->{ } |
340
|
|
|
|
|
|
|
# |
341
|
|
|
|
|
|
|
#eg |
342
|
|
|
|
|
|
|
# ->{'response'}{'$ref'}{'Buckets'} |
343
|
|
|
|
|
|
|
# is replaced with |
344
|
|
|
|
|
|
|
# ->{response}{ $schemas->{Buckets} } |
345
|
|
|
|
|
|
|
# |
346
|
|
|
|
|
|
|
# It assumes that the schemas have been extracted from the original discover for the API |
347
|
|
|
|
|
|
|
# and is typically applied to the method ( api endpoint ) to provide a fully descriptive |
348
|
|
|
|
|
|
|
# structure without external references. |
349
|
|
|
|
|
|
|
# |
350
|
|
|
|
|
|
|
#=cut |
351
|
|
|
|
|
|
|
|
352
|
|
|
|
|
|
|
######################################################## |
353
|
|
|
|
|
|
|
sub _fix_ref { |
354
|
130470
|
|
|
130470
|
|
235409
|
my ($self, $node, $schemas) = @_; |
355
|
130470
|
|
|
|
|
184419
|
my $ret = undef; |
356
|
130470
|
|
|
|
|
200458
|
my $r = ref($node); |
357
|
|
|
|
|
|
|
|
358
|
|
|
|
|
|
|
|
359
|
130470
|
100
|
|
|
|
248833
|
if ($r eq 'ARRAY') { |
|
|
100
|
|
|
|
|
|
360
|
5352
|
|
|
|
|
9377
|
$ret = []; |
361
|
5352
|
|
|
|
|
10266
|
foreach my $el (@$node) { |
362
|
32184
|
|
|
|
|
56393
|
push @$ret, $self->_fix_ref($el, $schemas); |
363
|
|
|
|
|
|
|
} |
364
|
|
|
|
|
|
|
} elsif ($r eq 'HASH') { |
365
|
32449
|
|
|
|
|
54442
|
$ret = {}; |
366
|
32449
|
|
|
|
|
101207
|
foreach my $key (keys %$node) { |
367
|
103217
|
100
|
|
|
|
177115
|
if ($key eq '$ref') { |
368
|
|
|
|
|
|
|
|
369
|
|
|
|
|
|
|
#say $node->{'$ref'}; |
370
|
4953
|
|
|
|
|
13753
|
$ret = $schemas->{ $node->{'$ref'} }; |
371
|
|
|
|
|
|
|
} else { |
372
|
98264
|
|
|
|
|
199455
|
$ret->{$key} = $self->_fix_ref($node->{$key}, $schemas); |
373
|
|
|
|
|
|
|
} |
374
|
|
|
|
|
|
|
} |
375
|
|
|
|
|
|
|
} else { |
376
|
92669
|
|
|
|
|
137834
|
$ret = $node; |
377
|
|
|
|
|
|
|
} |
378
|
|
|
|
|
|
|
|
379
|
130470
|
|
|
|
|
337525
|
return $ret; |
380
|
|
|
|
|
|
|
} |
381
|
|
|
|
|
|
|
######################################################## |
382
|
|
|
|
|
|
|
|
383
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
|
385
|
|
|
|
|
|
|
#TODO: consider ? refactor to allow parameters either as a single api id such as 'gmail' |
386
|
|
|
|
|
|
|
# as well as the currently accepted hash keyed on the api and version |
387
|
|
|
|
|
|
|
# |
388
|
|
|
|
|
|
|
#SEE ALSO: |
389
|
|
|
|
|
|
|
# The following methods are delegated through to Client::Discovery - see perldoc WebService::Client::Discovery for detils |
390
|
|
|
|
|
|
|
# |
391
|
|
|
|
|
|
|
# get_method_meta |
392
|
|
|
|
|
|
|
# discover_all |
393
|
|
|
|
|
|
|
# extract_method_discovery_detail_from_api_spec |
394
|
|
|
|
|
|
|
# get_api_discovery_for_api_id |
395
|
|
|
|
|
|
|
|
396
|
|
|
|
|
|
|
######################################################## |
397
|
|
|
|
|
|
|
#TODO- give short name and deprecate |
398
|
|
|
|
|
|
|
sub methods_available_for_google_api_id { |
399
|
0
|
|
|
0
|
1
|
0
|
my ($self, $api_id, $version) = @_; |
400
|
|
|
|
|
|
|
|
401
|
0
|
0
|
|
|
|
0
|
$version = $self->latest_stable_version($api_id) unless $version; |
402
|
|
|
|
|
|
|
## TODO: confirm that spec available for api version |
403
|
0
|
|
|
|
|
0
|
my $api_spec = $self->get_api_discovery_for_api_id({ api => $api_id, version => $version }); |
404
|
0
|
|
|
|
|
0
|
my $methods = $self->_extract_resource_methods_from_api_spec($api_id, $api_spec); |
405
|
0
|
|
|
|
|
0
|
return $methods; |
406
|
|
|
|
|
|
|
} |
407
|
|
|
|
|
|
|
######################################################## |
408
|
|
|
|
|
|
|
|
409
|
|
|
|
|
|
|
|
410
|
|
|
|
|
|
|
|
411
|
|
|
|
|
|
|
sub list_of_available_google_api_ids { |
412
|
0
|
|
|
0
|
0
|
0
|
carp <
|
413
|
|
|
|
|
|
|
This rather long function name (list_of_available_google_api_ids) |
414
|
|
|
|
|
|
|
is being deprecated in favor of the shorter list_api_ids. Please |
415
|
|
|
|
|
|
|
update your code accordingly. |
416
|
|
|
|
|
|
|
DEPRECATION |
417
|
0
|
|
|
|
|
0
|
shift->list_api_ids; |
418
|
|
|
|
|
|
|
} |
419
|
|
|
|
|
|
|
## returns a list of all available API Services |
420
|
|
|
|
|
|
|
sub list_api_ids { |
421
|
6
|
|
|
6
|
1
|
28904
|
my ($self) = @_; |
422
|
6
|
|
|
|
|
16
|
my @api_list = keys %{ $self->available_APIs }; |
|
6
|
|
|
|
|
25
|
|
423
|
6
|
100
|
|
|
|
556
|
return wantarray ? @api_list : join(',', @api_list); |
424
|
|
|
|
|
|
|
} |
425
|
|
|
|
|
|
|
|
426
|
|
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|
|
427
|
|
|
|
|
|
|
1; |
428
|
|
|
|
|
|
|
|
429
|
|
|
|
|
|
|
__END__ |