line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
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package Plack::Handler::Stomp; |
2
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$Plack::Handler::Stomp::VERSION = '1.14'; |
3
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{ |
4
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$Plack::Handler::Stomp::DIST = 'Plack-Handler-Stomp'; |
5
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} |
6
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13
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13
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1497
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use Moose; |
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13
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25
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13
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93
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7
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13
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13
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81342
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use MooseX::Types::Moose qw(Bool); |
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13
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31
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13
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136
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8
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13
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13
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62253
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use Plack::Handler::Stomp::Types qw(Logger PathMap); |
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13
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62
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13
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91
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9
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13
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13
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26080
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use Net::Stomp::MooseHelpers::Types qw(NetStompish); |
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13
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1344379
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13
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113
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10
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13
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13
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46141
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use Plack::Handler::Stomp::PathInfoMunger 'munge_path_info'; |
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13
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33
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13
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82
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11
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13
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13
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6380
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use Plack::Handler::Stomp::Exceptions; |
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13
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47
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13
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568
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12
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13
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13
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101
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use Net::Stomp::MooseHelpers::Exceptions; |
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13
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27
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13
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298
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13
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13
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13
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60
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use namespace::autoclean; |
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13
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25
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13
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115
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14
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13
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13
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936
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use Try::Tiny; |
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13
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32
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13
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806
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15
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13
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13
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4652
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use Plack::Util; |
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13
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77514
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13
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14438
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16
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17
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with 'Net::Stomp::MooseHelpers::CanConnect' => { -version => '2.6' }; |
18
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with 'Net::Stomp::MooseHelpers::CanSubscribe' => { -version => '2.6' }; |
19
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with 'Net::Stomp::MooseHelpers::ReconnectOnFailure'; |
20
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21
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# ABSTRACT: adapt STOMP to (almost) HTTP, via Plack |
22
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23
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24
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has logger => ( |
25
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is => 'rw', |
26
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isa => Logger, |
27
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lazy_build => 1, |
28
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); |
29
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sub _build_logger { |
30
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0
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0
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0
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require Net::Stomp::StupidLogger; |
31
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0
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0
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Net::Stomp::StupidLogger->new(); |
32
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} |
33
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34
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sub _build_connection { |
35
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14
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14
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2004439
|
my ($self) = @_; |
36
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37
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return $self->connection_builder->({ |
38
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14
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32
|
%{$self->extra_connection_builder_args}, |
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14
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425
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39
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logger => $self->logger, |
40
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hosts => $self->servers, |
41
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}); |
42
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} |
43
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44
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45
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has destination_path_map => ( |
46
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is => 'ro', |
47
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isa => PathMap, |
48
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default => sub { { } }, |
49
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); |
50
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51
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52
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has one_shot => ( |
53
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is => 'rw', |
54
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isa => Bool, |
55
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default => 0, |
56
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); |
57
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58
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59
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sub run { |
60
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19
|
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|
19
|
1
|
277
|
my ($self, $app) = @_; |
61
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|
62
|
19
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|
46
|
my $exception; |
63
|
|
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|
|
$self->reconnect_on_failure( |
64
|
|
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sub { |
65
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|
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|
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try { |
66
|
20
|
|
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|
|
872
|
$self->subscribe(); |
67
|
|
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|
|
|
|
68
|
19
|
|
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|
|
1353
|
$self->frame_loop($app); |
69
|
|
|
|
|
|
|
} catch { |
70
|
19
|
|
|
|
|
588
|
$exception = $_; |
71
|
20
|
|
|
20
|
|
22157
|
}; |
72
|
19
|
50
|
|
|
|
166
|
if ($exception) { |
73
|
19
|
50
|
|
|
|
182
|
if (!blessed $exception) { |
74
|
0
|
|
|
|
|
0
|
$exception = "unhandled exception $exception"; |
75
|
0
|
|
|
|
|
0
|
return; |
76
|
|
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|
|
|
|
} |
77
|
19
|
100
|
|
|
|
192
|
if ($exception->isa('Plack::Handler::Stomp::Exceptions::AppError')) { |
78
|
1
|
|
|
|
|
7
|
return; |
79
|
|
|
|
|
|
|
} |
80
|
18
|
100
|
|
|
|
109
|
if ($exception->isa('Plack::Handler::Stomp::Exceptions::UnknownFrame')) { |
81
|
1
|
|
|
|
|
3
|
return; |
82
|
|
|
|
|
|
|
} |
83
|
17
|
100
|
|
|
|
62
|
if ($exception->isa('Plack::Handler::Stomp::Exceptions::OneShot')) { |
84
|
16
|
|
|
|
|
30
|
$exception=undef; |
85
|
16
|
|
|
|
|
557
|
return; |
86
|
|
|
|
|
|
|
} |
87
|
1
|
|
|
|
|
4
|
die $exception; |
88
|
|
|
|
|
|
|
} |
89
|
19
|
|
|
|
|
232
|
}); |
90
|
18
|
100
|
|
|
|
596
|
die $exception if defined $exception; |
91
|
16
|
|
|
|
|
64
|
return; |
92
|
|
|
|
|
|
|
} |
93
|
|
|
|
|
|
|
|
94
|
|
|
|
|
|
|
|
95
|
|
|
|
|
|
|
sub frame_loop { |
96
|
18
|
|
|
18
|
1
|
57
|
my ($self,$app) = @_; |
97
|
|
|
|
|
|
|
|
98
|
18
|
|
|
|
|
35
|
while (1) { |
99
|
18
|
|
|
|
|
504
|
my $frame = $self->connection->receive_frame(); |
100
|
18
|
50
|
33
|
|
|
141
|
if(!$frame || !ref($frame)) { |
101
|
0
|
|
|
|
|
0
|
Net::Stomp::MooseHelpers::Exceptions::Stomp->throw({ |
102
|
|
|
|
|
|
|
stomp_error => 'empty frame received', |
103
|
|
|
|
|
|
|
}); |
104
|
|
|
|
|
|
|
} |
105
|
18
|
|
|
|
|
82
|
$self->handle_stomp_frame($app, $frame); |
106
|
|
|
|
|
|
|
|
107
|
16
|
50
|
|
|
|
594
|
Plack::Handler::Stomp::Exceptions::OneShot->throw() |
108
|
|
|
|
|
|
|
if $self->one_shot; |
109
|
|
|
|
|
|
|
} |
110
|
|
|
|
|
|
|
} |
111
|
|
|
|
|
|
|
|
112
|
|
|
|
|
|
|
|
113
|
|
|
|
|
|
|
sub handle_stomp_frame { |
114
|
23
|
|
|
23
|
1
|
74
|
my ($self, $app, $frame) = @_; |
115
|
|
|
|
|
|
|
|
116
|
23
|
|
|
|
|
85
|
my $command = $frame->command(); |
117
|
23
|
|
|
|
|
253
|
my $method = $self->can("handle_stomp_\L$command"); |
118
|
23
|
100
|
|
|
|
86
|
if ($method) { |
119
|
22
|
|
|
|
|
83
|
$self->$method($app, $frame); |
120
|
|
|
|
|
|
|
} |
121
|
|
|
|
|
|
|
else { |
122
|
1
|
|
|
|
|
74
|
Plack::Handler::Stomp::Exceptions::UnknownFrame->throw( |
123
|
|
|
|
|
|
|
{frame=>$frame} |
124
|
|
|
|
|
|
|
); |
125
|
|
|
|
|
|
|
} |
126
|
|
|
|
|
|
|
} |
127
|
|
|
|
|
|
|
|
128
|
|
|
|
|
|
|
|
129
|
|
|
|
|
|
|
sub handle_stomp_error { |
130
|
5
|
|
|
5
|
1
|
17
|
my ($self, $app, $frame) = @_; |
131
|
|
|
|
|
|
|
|
132
|
5
|
|
|
|
|
18
|
my $error = $frame->headers->{message}; |
133
|
5
|
|
|
|
|
167
|
$self->logger->warn($error); |
134
|
|
|
|
|
|
|
} |
135
|
|
|
|
|
|
|
|
136
|
|
|
|
|
|
|
|
137
|
|
|
|
|
|
|
sub handle_stomp_message { |
138
|
16
|
|
|
16
|
1
|
47
|
my ($self, $app, $frame) = @_; |
139
|
|
|
|
|
|
|
|
140
|
16
|
|
|
|
|
67
|
my $env = $self->build_psgi_env($frame); |
141
|
|
|
|
|
|
|
try { |
142
|
16
|
|
|
16
|
|
806
|
$self->process_the_message($app,$env); |
143
|
|
|
|
|
|
|
|
144
|
15
|
|
|
|
|
480
|
$self->connection->ack({ frame => $frame }); |
145
|
|
|
|
|
|
|
} catch { |
146
|
1
|
|
|
1
|
|
193
|
Plack::Handler::Stomp::Exceptions::AppError->throw({ |
147
|
|
|
|
|
|
|
app_error => $_ |
148
|
|
|
|
|
|
|
}); |
149
|
16
|
|
|
|
|
126
|
}; |
150
|
|
|
|
|
|
|
} |
151
|
|
|
|
|
|
|
|
152
|
|
|
|
|
|
|
|
153
|
|
|
|
|
|
|
sub process_the_message { |
154
|
16
|
|
|
16
|
1
|
41
|
my ($self,$app,$env) = @_; |
155
|
|
|
|
|
|
|
|
156
|
16
|
|
|
|
|
65
|
my $res = $app->($env); |
157
|
|
|
|
|
|
|
|
158
|
15
|
|
|
|
|
1283
|
my $flattened_response=[]; |
159
|
15
|
|
|
15
|
|
76
|
my $cb = sub { $flattened_response->[2].=$_[0] }; |
|
15
|
|
|
|
|
169
|
|
160
|
|
|
|
|
|
|
|
161
|
|
|
|
|
|
|
my $response_handler = sub { |
162
|
15
|
|
|
15
|
|
36
|
my ($response) = @_; |
163
|
|
|
|
|
|
|
|
164
|
15
|
|
|
|
|
37
|
$flattened_response->[0]=$response->[0]; |
165
|
15
|
|
|
|
|
35
|
$flattened_response->[1]=$response->[1]; |
166
|
|
|
|
|
|
|
|
167
|
15
|
|
|
|
|
34
|
my $body=$response->[2]; |
168
|
15
|
50
|
|
|
|
38
|
if (defined $body) { |
169
|
15
|
|
|
|
|
120
|
Plack::Util::foreach($body, $cb); |
170
|
|
|
|
|
|
|
} |
171
|
|
|
|
|
|
|
else { |
172
|
|
|
|
|
|
|
return Plack::Util::inline_object( |
173
|
|
|
|
|
|
|
write => $cb, |
174
|
|
|
|
|
|
|
close => sub { }, |
175
|
0
|
|
|
|
|
0
|
); |
176
|
|
|
|
|
|
|
} |
177
|
15
|
|
|
|
|
73
|
}; |
178
|
|
|
|
|
|
|
|
179
|
15
|
50
|
|
|
|
64
|
if (ref $res eq 'ARRAY') { |
|
|
0
|
|
|
|
|
|
180
|
15
|
|
|
|
|
46
|
$response_handler->($res); |
181
|
|
|
|
|
|
|
} |
182
|
|
|
|
|
|
|
elsif (ref $res eq 'CODE') { |
183
|
0
|
|
|
|
|
0
|
$res->($response_handler); |
184
|
|
|
|
|
|
|
} |
185
|
|
|
|
|
|
|
else { |
186
|
0
|
|
|
|
|
0
|
Plack::Handler::Stomp::Exceptions::AppError->throw({ |
187
|
|
|
|
|
|
|
app_error => "Bad response $res" |
188
|
|
|
|
|
|
|
}); |
189
|
|
|
|
|
|
|
} |
190
|
|
|
|
|
|
|
|
191
|
15
|
|
|
|
|
85
|
$self->maybe_send_reply($flattened_response); |
192
|
|
|
|
|
|
|
|
193
|
15
|
|
|
|
|
103
|
return; |
194
|
|
|
|
|
|
|
} |
195
|
|
|
|
|
|
|
|
196
|
|
|
|
|
|
|
|
197
|
|
|
|
|
|
|
sub handle_stomp_receipt { |
198
|
1
|
|
|
1
|
1
|
4
|
my ($self, $app, $frame) = @_; |
199
|
|
|
|
|
|
|
|
200
|
|
|
|
|
|
|
$self->logger->debug('ignored RECEIPT frame for ' |
201
|
1
|
|
|
|
|
25
|
.$frame->headers->{'receipt-id'}); |
202
|
|
|
|
|
|
|
} |
203
|
|
|
|
|
|
|
|
204
|
|
|
|
|
|
|
|
205
|
|
|
|
|
|
|
sub maybe_send_reply { |
206
|
15
|
|
|
15
|
1
|
36
|
my ($self, $response) = @_; |
207
|
|
|
|
|
|
|
|
208
|
15
|
|
|
|
|
51
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my $reply_to = $self->where_should_send_reply($response); |
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15
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100
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349
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if ($reply_to) { |
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26
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$self->send_reply($response,$reply_to); |
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} |
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15
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return; |
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} |
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sub where_should_send_reply { |
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15
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15
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1
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my ($self, $response) = @_; |
219
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220
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15
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66
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58
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return Plack::Util::header_get($response->[1], |
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'X-Reply-Address') |
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|| Plack::Util::header_get($response->[1], |
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'X-STOMP-Reply-Address') |
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} |
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227
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sub send_reply { |
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6
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6
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1
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my ($self, $response, $reply_address) = @_; |
229
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6
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25
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my $reply_queue = '/remote-temp-queue/' . $reply_address; |
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232
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6
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12
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my $content = ''; |
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6
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50
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58
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unless (Plack::Util::status_with_no_entity_body($response->[0])) { |
234
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# pre-flattened, see L</process_the_message> |
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6
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50
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$content = $response->[2]; |
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} |
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238
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6
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16
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my %reply_hh = (); |
239
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6
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13
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while (my ($k,$v) = splice @{$response->[1]},0,2) { |
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13
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52
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240
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7
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16
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$k=lc($k); |
241
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7
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100
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23
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next if $k eq 'x-stomp-reply-address'; |
242
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1
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50
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3
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next if $k eq 'x-reply-address'; |
243
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1
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50
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5
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next unless $k =~ s{^x-stomp-}{}; |
244
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245
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1
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3
|
$reply_hh{lc($k)} = $v; |
246
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} |
247
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248
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$self->connection->send({ |
249
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6
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201
|
%reply_hh, |
250
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destination => $reply_queue, |
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body => $content |
252
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}); |
253
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254
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6
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9531
|
return; |
255
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} |
256
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257
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258
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after subscribe_single => sub { |
259
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my ($self,$sub,$headers) = @_; |
260
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261
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my $destination = $headers->{destination}; |
262
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my $sub_id = $headers->{id}; |
263
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264
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$self->destination_path_map->{$destination} = |
265
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$self->destination_path_map->{"/subscription/$sub_id"} = |
266
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$sub->{path_info} || $destination; |
267
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268
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|
return; |
269
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}; |
270
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271
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272
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|
sub build_psgi_env { |
273
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16
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16
|
1
|
48
|
my ($self, $frame) = @_; |
274
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275
|
16
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|
55
|
my $destination = $frame->headers->{destination}; |
276
|
16
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|
105
|
my $sub_id = $frame->headers->{subscription}; |
277
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278
|
16
|
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|
|
75
|
my $path_info; |
279
|
16
|
100
|
|
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|
57
|
if (defined $sub_id) { |
280
|
11
|
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|
367
|
$path_info = $self->destination_path_map->{"/subscription/$sub_id"} |
281
|
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|
|
}; |
282
|
16
|
|
100
|
|
|
260
|
$path_info ||= $self->destination_path_map->{$destination}; |
283
|
16
|
100
|
|
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|
58
|
if ($path_info) { |
284
|
15
|
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|
75
|
$path_info = munge_path_info( |
285
|
|
|
|
|
|
|
$path_info, |
286
|
|
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|
|
|
|
$self->current_server, |
287
|
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|
|
$frame, |
288
|
|
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|
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|
|
); |
289
|
|
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|
|
|
} |
290
|
16
|
|
66
|
|
|
59
|
$path_info ||= $destination; # should not really be needed |
291
|
|
|
|
|
|
|
|
292
|
13
|
|
|
13
|
|
113
|
use bytes; |
|
13
|
|
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|
|
31
|
|
|
13
|
|
|
|
|
158
|
|
293
|
|
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|
|
294
|
|
|
|
|
|
|
my $env = { |
295
|
|
|
|
|
|
|
# server |
296
|
|
|
|
|
|
|
SERVER_NAME => 'localhost', |
297
|
|
|
|
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|
|
SERVER_PORT => 0, |
298
|
|
|
|
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|
|
SERVER_PROTOCOL => 'STOMP', |
299
|
|
|
|
|
|
|
|
300
|
|
|
|
|
|
|
# client |
301
|
|
|
|
|
|
|
REQUEST_METHOD => 'POST', |
302
|
|
|
|
|
|
|
REQUEST_URI => $path_info, |
303
|
|
|
|
|
|
|
SCRIPT_NAME => '', |
304
|
|
|
|
|
|
|
PATH_INFO => $path_info, |
305
|
|
|
|
|
|
|
QUERY_STRING => '', |
306
|
|
|
|
|
|
|
|
307
|
|
|
|
|
|
|
# broker |
308
|
|
|
|
|
|
|
REMOTE_ADDR => $self->current_server->{hostname}, |
309
|
|
|
|
|
|
|
|
310
|
|
|
|
|
|
|
# http |
311
|
|
|
|
|
|
|
HTTP_USER_AGENT => 'Net::Stomp', |
312
|
|
|
|
|
|
|
CONTENT_LENGTH => length($frame->body), |
313
|
|
|
|
|
|
|
CONTENT_TYPE => ( $frame->headers->{'content-type'} || 'application/octet-stream' ), |
314
|
|
|
|
|
|
|
|
315
|
|
|
|
|
|
|
# psgi |
316
|
|
|
|
|
|
|
'psgi.version' => [1,0], |
317
|
|
|
|
|
|
|
'psgi.url_scheme' => 'http', |
318
|
|
|
|
|
|
|
'psgi.multithread' => 0, |
319
|
|
|
|
|
|
|
'psgi.multiprocess' => 0, |
320
|
|
|
|
|
|
|
'psgi.run_once' => 0, |
321
|
|
|
|
|
|
|
'psgi.nonblocking' => 0, |
322
|
|
|
|
|
|
|
'psgi.streaming' => 1, |
323
|
|
|
|
|
|
|
'psgi.input' => do { |
324
|
16
|
|
|
8
|
|
645
|
open my $input, '<', \($frame->body); |
|
8
|
|
|
|
|
615
|
|
|
8
|
|
|
|
|
17
|
|
|
8
|
|
|
|
|
65
|
|
325
|
16
|
|
|
|
|
6124
|
$input; |
326
|
|
|
|
|
|
|
}, |
327
|
|
|
|
|
|
|
'psgi.errors' => Plack::Util::inline_object( |
328
|
1
|
|
|
1
|
|
107
|
print => sub { $self->logger->error(@_) }, |
329
|
16
|
|
100
|
|
|
70
|
), |
330
|
|
|
|
|
|
|
}; |
331
|
|
|
|
|
|
|
|
332
|
16
|
50
|
|
|
|
509
|
if ($frame->headers) { |
333
|
16
|
|
|
|
|
109
|
for my $header (keys %{$frame->headers}) { |
|
16
|
|
|
|
|
49
|
|
334
|
45
|
|
|
|
|
259
|
$env->{"jms.$header"} = $frame->headers->{$header}; |
335
|
|
|
|
|
|
|
} |
336
|
|
|
|
|
|
|
} |
337
|
|
|
|
|
|
|
|
338
|
16
|
|
|
|
|
106
|
return $env; |
339
|
|
|
|
|
|
|
} |
340
|
|
|
|
|
|
|
|
341
|
|
|
|
|
|
|
__PACKAGE__->meta->make_immutable; |
342
|
|
|
|
|
|
|
|
343
|
|
|
|
|
|
|
|
344
|
|
|
|
|
|
|
1; |
345
|
|
|
|
|
|
|
|
346
|
|
|
|
|
|
|
__END__ |
347
|
|
|
|
|
|
|
|
348
|
|
|
|
|
|
|
=pod |
349
|
|
|
|
|
|
|
|
350
|
|
|
|
|
|
|
=encoding UTF-8 |
351
|
|
|
|
|
|
|
|
352
|
|
|
|
|
|
|
=head1 NAME |
353
|
|
|
|
|
|
|
|
354
|
|
|
|
|
|
|
Plack::Handler::Stomp - adapt STOMP to (almost) HTTP, via Plack |
355
|
|
|
|
|
|
|
|
356
|
|
|
|
|
|
|
=head1 VERSION |
357
|
|
|
|
|
|
|
|
358
|
|
|
|
|
|
|
version 1.14 |
359
|
|
|
|
|
|
|
|
360
|
|
|
|
|
|
|
=head1 SYNOPSIS |
361
|
|
|
|
|
|
|
|
362
|
|
|
|
|
|
|
my $runner = Plack::Handler::Stomp->new({ |
363
|
|
|
|
|
|
|
servers => [ { hostname => 'localhost', port => 61613 } ], |
364
|
|
|
|
|
|
|
subscriptions => [ |
365
|
|
|
|
|
|
|
{ destination => '/queue/plack-handler-stomp-test' }, |
366
|
|
|
|
|
|
|
{ destination => '/topic/plack-handler-stomp-test', |
367
|
|
|
|
|
|
|
headers => { |
368
|
|
|
|
|
|
|
selector => q{custom_header = '1' or JMSType = 'test_foo'}, |
369
|
|
|
|
|
|
|
}, |
370
|
|
|
|
|
|
|
path_info => '/topic/ch1', }, |
371
|
|
|
|
|
|
|
{ destination => '/topic/plack-handler-stomp-test', |
372
|
|
|
|
|
|
|
headers => { |
373
|
|
|
|
|
|
|
selector => q{custom_header = '2' or JMSType = 'test_bar'}, |
374
|
|
|
|
|
|
|
}, |
375
|
|
|
|
|
|
|
path_info => '/topic/ch2', }, |
376
|
|
|
|
|
|
|
], |
377
|
|
|
|
|
|
|
}); |
378
|
|
|
|
|
|
|
$runner->run(MyApp->get_app()); |
379
|
|
|
|
|
|
|
|
380
|
|
|
|
|
|
|
=head1 DESCRIPTION |
381
|
|
|
|
|
|
|
|
382
|
|
|
|
|
|
|
Sometimes you want to use your very nice web-application-framework |
383
|
|
|
|
|
|
|
dispatcher, module loading mechanisms, etc, but you're not really |
384
|
|
|
|
|
|
|
writing a web application, you're writing a ActiveMQ consumer. In |
385
|
|
|
|
|
|
|
those cases, this module is for you. |
386
|
|
|
|
|
|
|
|
387
|
|
|
|
|
|
|
This module is inspired by L<Catalyst::Engine::Stomp>, but aims to be |
388
|
|
|
|
|
|
|
usable by any PSGI application. |
389
|
|
|
|
|
|
|
|
390
|
|
|
|
|
|
|
=head2 Roles Consumed |
391
|
|
|
|
|
|
|
|
392
|
|
|
|
|
|
|
We consume L<Net::Stomp::MooseHelpers::CanConnect> and |
393
|
|
|
|
|
|
|
L<Net::Stomp::MooseHelpers::CanSubscribe>. Read those modules' |
394
|
|
|
|
|
|
|
documentation to see how to configure servers and subscriptions. |
395
|
|
|
|
|
|
|
|
396
|
|
|
|
|
|
|
=head1 ATTRIBUTES |
397
|
|
|
|
|
|
|
|
398
|
|
|
|
|
|
|
=head2 C<logger> |
399
|
|
|
|
|
|
|
|
400
|
|
|
|
|
|
|
A logger object used by thes handler. Not to be confused by the logger |
401
|
|
|
|
|
|
|
used by the application (either internally, or via a Middleware). Can |
402
|
|
|
|
|
|
|
be any object that can C<debug>, C<info>, C<warn>, C<error>. Defaults |
403
|
|
|
|
|
|
|
to an instance of L<Net::Stomp::StupidLogger>. This logger is passed |
404
|
|
|
|
|
|
|
on to the L<Net::Stomp> object held in C<connection> (see |
405
|
|
|
|
|
|
|
L<Net::Stomp::MooseHelpers::CanConnect>). |
406
|
|
|
|
|
|
|
|
407
|
|
|
|
|
|
|
=head2 C<destination_path_map> |
408
|
|
|
|
|
|
|
|
409
|
|
|
|
|
|
|
A hashref mapping destinations (queues, topics, subscription ids) to |
410
|
|
|
|
|
|
|
URI paths to send to the application. You should not modify this. |
411
|
|
|
|
|
|
|
|
412
|
|
|
|
|
|
|
=head2 C<one_shot> |
413
|
|
|
|
|
|
|
|
414
|
|
|
|
|
|
|
If true, exit after the first message is consumed. Useful for testing, |
415
|
|
|
|
|
|
|
defaults to false. |
416
|
|
|
|
|
|
|
|
417
|
|
|
|
|
|
|
=head1 METHODS |
418
|
|
|
|
|
|
|
|
419
|
|
|
|
|
|
|
=head2 C<run> |
420
|
|
|
|
|
|
|
|
421
|
|
|
|
|
|
|
Given a PSGI application, loops forever: |
422
|
|
|
|
|
|
|
|
423
|
|
|
|
|
|
|
=over 4 |
424
|
|
|
|
|
|
|
|
425
|
|
|
|
|
|
|
=item * |
426
|
|
|
|
|
|
|
|
427
|
|
|
|
|
|
|
connect to a STOMP server (see |
428
|
|
|
|
|
|
|
L<connect|Net::Stomp::MooseHelpers::CanConnect/connect> and |
429
|
|
|
|
|
|
|
L<servers|Net::Stomp::MooseHelpers::CanConnect/servers> in |
430
|
|
|
|
|
|
|
L<Net::Stomp::MooseHelpers::CanConnect>) |
431
|
|
|
|
|
|
|
|
432
|
|
|
|
|
|
|
=item * |
433
|
|
|
|
|
|
|
|
434
|
|
|
|
|
|
|
subscribe to whatever needed (see |
435
|
|
|
|
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L<subscribe|Net::Stomp::MooseHelpers::CanSubscribe/subscribe> and |
436
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L<subscriptions|Net::Stomp::MooseHelpers::CanSubscribe/subscriptions> |
437
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in L<Net::Stomp::MooseHelpers::CanSubscribe>) |
438
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439
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=item * |
440
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441
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consume STOMP frames in an inner loop (see L</frame_loop>) |
442
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443
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=back |
444
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445
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If the application throws an exception, the loop exits re-throwing the |
446
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exception. If the STOMP connection has problems, the loop is repeated |
447
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with a different server (see |
448
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L<next_server|Net::Stomp::MooseHelpers::CanConnect/next_server> in |
449
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L<Net::Stomp::MooseHelpers::CanConnect>). |
450
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451
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If L</one_shot> is set, this function exits after having consumed |
452
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exactly 1 frame. |
453
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454
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=head2 C<frame_loop> |
455
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456
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Loop forever receiving frames from the STOMP connection. Call |
457
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L</handle_stomp_frame> for each frame. |
458
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459
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If L</one_shot> is set, this function exits after having consumed |
460
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exactly 1 frame. |
461
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462
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=head2 C<handle_stomp_frame> |
463
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464
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Delegates the handling to L</handle_stomp_message>, |
465
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L</handle_stomp_error>, L</handle_stomp_receipt>, or throws |
466
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L<Plack::Handler::Stomp::Exceptions::UnknownFrame> if the frame is of |
467
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some other kind. If you want to handle different kind of frames (maybe |
468
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because you have some non-standard STOMP server), you can just |
469
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subclass and add methods; for example, to handle C<STRANGE> frames, |
470
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add a C<handle_stomp_strange> method. |
471
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472
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=head2 C<handle_stomp_error> |
473
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474
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Logs the error via the L</logger>, level C<warn>. |
475
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476
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=head2 C<handle_stomp_message> |
477
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478
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Calls L</build_psgi_env> to convert the STOMP message into a PSGI |
479
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environment. |
480
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481
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The environment is then passed to L</process_the_message>, and the |
482
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frame is acknowledged. |
483
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484
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|
=head2 C<process_the_message> |
485
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486
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|
Runs a PSGI environment through the application, then flattens the |
487
|
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|
response body into a simple string. |
488
|
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489
|
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|
The response so flattened is sent back via L</maybe_send_reply>. |
490
|
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491
|
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|
|
=head2 C<handle_stomp_receipt> |
492
|
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493
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|
Logs (level C<debug>) the receipt id. Nothing else is done with |
494
|
|
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|
|
receipts. |
495
|
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496
|
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|
|
=head2 C<maybe_send_reply> |
497
|
|
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498
|
|
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|
|
Calls L</where_should_send_reply> to determine if to send a reply, and |
499
|
|
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|
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|
|
where. If it returns a true value, L</send_reply> is called to |
500
|
|
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|
|
actually send the reply. |
501
|
|
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|
|
502
|
|
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|
|
=head2 C<where_should_send_reply> |
503
|
|
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|
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504
|
|
|
|
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|
|
Returns the header C<X-Reply-Address> or C<X-STOMP-Reply-Address> from |
505
|
|
|
|
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|
|
the response. |
506
|
|
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|
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507
|
|
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|
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|
|
=head2 C<send_reply> |
508
|
|
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|
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509
|
|
|
|
|
|
|
Converts the PSGI response into a STOMP frame, by removing the prefix |
510
|
|
|
|
|
|
|
C<x-stomp-> from the key of header fields that have it, removing |
511
|
|
|
|
|
|
|
entirely header fields that don't, and stringifying the body. |
512
|
|
|
|
|
|
|
|
513
|
|
|
|
|
|
|
Then sends the frame. |
514
|
|
|
|
|
|
|
|
515
|
|
|
|
|
|
|
=head2 C<subscribe_single> |
516
|
|
|
|
|
|
|
|
517
|
|
|
|
|
|
|
C<after> modifier on the method provided by |
518
|
|
|
|
|
|
|
L<Net::Stomp::MooseHelpers::CanSubscribe>. |
519
|
|
|
|
|
|
|
|
520
|
|
|
|
|
|
|
It sets the L</destination_path_map> to map the destination and the |
521
|
|
|
|
|
|
|
subscription id to the C<path_info> slot of the L</subscriptions> |
522
|
|
|
|
|
|
|
element, or to the destination itself if C<path_info> is not defined. |
523
|
|
|
|
|
|
|
|
524
|
|
|
|
|
|
|
=head2 C<build_psgi_env> |
525
|
|
|
|
|
|
|
|
526
|
|
|
|
|
|
|
Builds a PSGI environment from the message, like: |
527
|
|
|
|
|
|
|
|
528
|
|
|
|
|
|
|
# server |
529
|
|
|
|
|
|
|
SERVER_NAME => 'localhost', |
530
|
|
|
|
|
|
|
SERVER_PORT => 0, |
531
|
|
|
|
|
|
|
SERVER_PROTOCOL => 'STOMP', |
532
|
|
|
|
|
|
|
|
533
|
|
|
|
|
|
|
# client |
534
|
|
|
|
|
|
|
REQUEST_METHOD => 'POST', |
535
|
|
|
|
|
|
|
REQUEST_URI => $path_info, |
536
|
|
|
|
|
|
|
SCRIPT_NAME => '', |
537
|
|
|
|
|
|
|
PATH_INFO => $path_info, |
538
|
|
|
|
|
|
|
QUERY_STRING => '', |
539
|
|
|
|
|
|
|
|
540
|
|
|
|
|
|
|
# broker |
541
|
|
|
|
|
|
|
REMOTE_ADDR => $server_hostname, |
542
|
|
|
|
|
|
|
|
543
|
|
|
|
|
|
|
# http |
544
|
|
|
|
|
|
|
HTTP_USER_AGENT => 'Net::Stomp', |
545
|
|
|
|
|
|
|
CONTENT_LENGTH => length($body), |
546
|
|
|
|
|
|
|
CONTENT_TYPE => $content-type, |
547
|
|
|
|
|
|
|
|
548
|
|
|
|
|
|
|
# psgi |
549
|
|
|
|
|
|
|
'psgi.version' => [1,0], |
550
|
|
|
|
|
|
|
'psgi.url_scheme' => 'http', |
551
|
|
|
|
|
|
|
'psgi.multithread' => 0, |
552
|
|
|
|
|
|
|
'psgi.multiprocess' => 0, |
553
|
|
|
|
|
|
|
'psgi.run_once' => 0, |
554
|
|
|
|
|
|
|
'psgi.nonblocking' => 0, |
555
|
|
|
|
|
|
|
'psgi.streaming' => 1, |
556
|
|
|
|
|
|
|
|
557
|
|
|
|
|
|
|
In addition, reading from C<psgi.input> will return the message body, |
558
|
|
|
|
|
|
|
and writing to C<psgi.errors> will log via the L</logger> at level |
559
|
|
|
|
|
|
|
C<error>. |
560
|
|
|
|
|
|
|
|
561
|
|
|
|
|
|
|
Finally, every header in the STOMP message will be available in the |
562
|
|
|
|
|
|
|
"namespace" C<jms.>, so for example the message type is in |
563
|
|
|
|
|
|
|
C<jms.type>. |
564
|
|
|
|
|
|
|
|
565
|
|
|
|
|
|
|
The C<$path_info> is obtained from the L</destination_path_map> |
566
|
|
|
|
|
|
|
(i.e. from the C<path_info> subscription options) passed through |
567
|
|
|
|
|
|
|
L<munge_path_info|Plack::Handler::Stomp::PathInfoMunger/munge_path_info>. |
568
|
|
|
|
|
|
|
|
569
|
|
|
|
|
|
|
=head1 EXAMPLES |
570
|
|
|
|
|
|
|
|
571
|
|
|
|
|
|
|
You can find examples of use in the tests, or at |
572
|
|
|
|
|
|
|
https://github.com/dakkar/CatalystX-StompSampleApps |
573
|
|
|
|
|
|
|
|
574
|
|
|
|
|
|
|
=head1 AUTHOR |
575
|
|
|
|
|
|
|
|
576
|
|
|
|
|
|
|
Gianni Ceccarelli <gianni.ceccarelli@net-a-porter.com> |
577
|
|
|
|
|
|
|
|
578
|
|
|
|
|
|
|
=head1 COPYRIGHT AND LICENSE |
579
|
|
|
|
|
|
|
|
580
|
|
|
|
|
|
|
This software is copyright (c) 2012 by Net-a-porter.com. |
581
|
|
|
|
|
|
|
|
582
|
|
|
|
|
|
|
This is free software; you can redistribute it and/or modify it under |
583
|
|
|
|
|
|
|
the same terms as the Perl 5 programming language system itself. |
584
|
|
|
|
|
|
|
|
585
|
|
|
|
|
|
|
=cut |