line |
stmt |
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cond |
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pod |
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code |
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package XAS::Lib::Stomp::POE::Client; |
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3
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our $VERSION = '0.04'; |
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800
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use POE; |
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use Try::Tiny; |
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56
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use XAS::Lib::Stomp::Utils; |
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use XAS::Lib::Stomp::POE::Filter; |
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56
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10
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use XAS::Class |
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debug => 0, |
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version => $VERSION, |
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base => 'XAS::Lib::Net::POE::Client', |
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mixins => 'XAS::Lib::Mixins::Keepalive', |
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utils => 'trim', |
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accessors => 'stomp', |
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vars => { |
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PARAMS => { |
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-host => { optional => 1, default => undef }, |
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-port => { optional => 1, default => undef }, |
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-alias => { optional => 1, default => 'stomp-client' }, |
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-login => { optional => 1, default => 'guest' }, |
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-passcode => { optional => 1, default => 'guest' }, |
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} |
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} |
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1
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; |
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#use Data::Dumper; |
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# ---------------------------------------------------------------------- |
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# Public Events |
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# ---------------------------------------------------------------------- |
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# --------------------------------------------------------------------- |
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# Public Methods |
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# --------------------------------------------------------------------- |
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38
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sub session_initialize { |
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my $self = shift; |
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my $alias = $self->alias; |
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0
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$self->log->debug("$alias: session_initialize()"); |
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# public events |
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$self->log->debug("$alias: doing public events"); |
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49
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0
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$poe_kernel->state('handle_noop', $self); |
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0
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$poe_kernel->state('handle_error', $self); |
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$poe_kernel->state('handle_message', $self); |
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0
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$poe_kernel->state('handle_receipt', $self); |
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0
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$poe_kernel->state('handle_connected', $self); |
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55
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# walk the chain |
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0
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$self->SUPER::session_initialize(); |
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0
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$self->log->debug("$alias: leaving session_initialize()"); |
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61
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} |
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63
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sub session_shutdown { |
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1
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my $self = shift; |
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66
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0
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my $alias = $self->alias; |
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0
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my $frame = $self->stomp->disconnect( |
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-receipt => 'disconnecting' |
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); |
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71
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$self->log->debug("$alias: entering session_shutdown()"); |
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73
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0
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$poe_kernel->call($alias, 'write_data', $frame); |
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75
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# walk the chain |
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77
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0
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$self->SUPER::session_shutdown(); |
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79
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0
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$self->log->debug("$alias: leaving session_shutdown()"); |
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81
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} |
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83
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# --------------------------------------------------------------------- |
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# Public Events |
85
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# --------------------------------------------------------------------- |
86
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87
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sub handle_connection { |
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0
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1
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my ($self) = $_[OBJECT]; |
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90
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my $alias = $self->alias; |
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my $frame = $self->stomp->connect( |
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-login => $self->login, |
93
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-passcode => $self->passcode |
94
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); |
95
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96
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0
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$self->log->debug("$alias: entering handle_connection()"); |
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98
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0
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$poe_kernel->post($alias, 'write_data', $frame); |
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100
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0
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$self->log->debug("$alias: leaving handle_connection()"); |
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102
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} |
103
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104
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sub handle_connected { |
105
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0
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1
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my ($self, $frame) = @_[OBJECT, ARG0]; |
106
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107
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0
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my $alias = $self->alias; |
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109
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0
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$self->log->debug("$alias: entering handle_connected()"); |
110
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111
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0
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0
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if ($self->tcp_keepalive) { |
112
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113
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0
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$self->log->info_msg('tcp_keepalive_enabled', $alias); |
114
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115
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0
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$self->init_keepalive(); |
116
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0
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$self->enable_keepalive($self->socket); |
117
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118
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} |
119
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120
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0
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$self->log->info_msg('net_server_connected', $alias, $self->host, $self->port); |
121
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122
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0
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$poe_kernel->post($alias, 'connection_up'); |
123
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124
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0
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$self->log->debug("$alias: leaving handle_connected()"); |
125
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126
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} |
127
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128
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sub handle_message { |
129
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0
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0
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1
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my ($self, $frame) = @_[OBJECT, ARG0]; |
130
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131
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} |
132
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133
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sub handle_receipt { |
134
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0
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0
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1
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my ($self, $frame) = @_[OBJECT, ARG0]; |
135
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136
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} |
137
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138
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sub handle_error { |
139
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0
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0
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1
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my ($self, $frame) = @_[OBJECT, ARG0]; |
140
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141
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0
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my $message = ''; |
142
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0
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my $message_id = ''; |
143
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0
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my $alias = $self->alias; |
144
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145
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0
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0
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if ($frame->header->methods->has('message_id')) { |
146
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147
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0
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$message_id = $frame->header->message_id; |
148
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149
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} |
150
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151
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0
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0
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if ($frame->header->methods->has('message')) { |
152
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153
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0
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$message = $frame->header->message; |
154
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155
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} |
156
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157
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0
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$self->log->error_msg('stomp_errors', |
158
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$alias, |
159
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trim($message_id), |
160
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trim($message), |
161
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trim($frame->body) |
162
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); |
163
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164
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} |
165
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166
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sub handle_noop { |
167
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0
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0
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1
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my ($self, $frame) = @_[OBJECT, ARG0]; |
168
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169
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0
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my $alias = $self->alias; |
170
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171
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0
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$self->log->debug("$alias: handle_noop()"); |
172
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173
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} |
174
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175
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# --------------------------------------------------------------------- |
176
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# Private Events |
177
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# --------------------------------------------------------------------- |
178
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179
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sub _server_message { |
180
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0
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0
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my ($self, $frame, $wheel_id) = @_[OBJECT, ARG0, ARG1]; |
181
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182
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0
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my $alias = $self->alias; |
183
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184
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0
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$self->log->debug("$alias: entering _server_message()"); |
185
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186
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0
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0
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if ($frame->command eq 'CONNECTED') { |
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0
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0
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0
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0
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187
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188
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0
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$self->log->debug("$alias: received a \"CONNECTED\" message"); |
189
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0
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$poe_kernel->post($alias, 'handle_connected', $frame); |
190
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191
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} elsif ($frame->command eq 'MESSAGE') { |
192
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193
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0
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$self->log->debug("$alias: received a \"MESSAGE\" message"); |
194
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0
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$poe_kernel->post($alias, 'handle_message', $frame); |
195
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196
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} elsif ($frame->command eq 'RECEIPT') { |
197
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198
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0
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$self->log->debug("$alias: received a \"RECEIPT\" message"); |
199
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0
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$poe_kernel->post($alias, 'handle_receipt', $frame); |
200
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201
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} elsif ($frame->command eq 'ERROR') { |
202
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203
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0
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$self->log->debug("$alias: received an \"ERROR\" message"); |
204
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0
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$poe_kernel->post($alias, 'handle_error', $frame); |
205
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206
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} elsif ($frame->command eq 'NOOP') { |
207
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208
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0
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$self->log->debug("$alias: received an \"NOOP\" message"); |
209
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0
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$poe_kernel->post($alias, 'handle_noop', $frame); |
210
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211
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} else { |
212
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213
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0
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$self->log->warn_msg('stomp_unknown_type', $alias, $frame->command); |
214
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215
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} |
216
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217
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0
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$self->log->debug("$alias: leaving _server_message()"); |
218
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219
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} |
220
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221
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# --------------------------------------------------------------------- |
222
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|
|
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|
# Private Methods |
223
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|
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|
# --------------------------------------------------------------------- |
224
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|
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|
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225
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|
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|
sub init { |
226
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0
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0
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1
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my $class = shift; |
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my $self = $class->SUPER::init(@_); |
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unless (defined($self->{'host'})) { |
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$self->{'host'} = $self->env->mqserver; |
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} |
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unless (defined($self->{'port'})) { |
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$self->{'port'} = $self->env->mqport; |
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} |
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$self->{'stomp'} = XAS::Lib::Stomp::Utils->new(); |
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$self->{'filter'} = XAS::Lib::Stomp::POE::Filter->new(); |
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return $self; |
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} |
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1; |
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__END__ |
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=head1 NAME |
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XAS::Lib::Stomp::POE::Client - A STOMP client for the POE Environment |
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=head1 SYNOPSIS |
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This module is a class used to create clients that need to access a |
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message server that communicates with the STOMP protocol. Your program could |
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look as follows: |
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package Client; |
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use POE; |
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use XAS::Class |
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version => '1.0', |
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base => 'XAS::Lib::Stomp::POE::Client', |
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; |
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package main; |
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use POE; |
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use strict; |
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Client->new( |
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-alias => 'testing', |
278
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-queue => '/queue/testing', |
279
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); |
280
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281
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$poe_kernel->run(); |
282
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283
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exit 0; |
284
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285
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=head1 DESCRIPTION |
286
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287
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This module handles the nitty-gritty details of setting up the communications |
288
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channel to a message queue server. You will need to sub-class this module |
289
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with your own for it to be useful. |
290
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291
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When messages are received, specific events are generated. Those events are |
292
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based on the message type. If you are interested in those events you should |
293
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override the default behavior for those events. The default behavior is to |
294
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do nothing. This module inherits from L<XAS::Lib::Net::POE::Client|XAS::Lib::Net::POE::Client>. |
295
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296
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=head1 METHODS |
297
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298
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=head2 new |
299
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300
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This method initializes the class and starts a session to handle the |
301
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communications channel. It takes the following additional parameters: |
302
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303
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=over 4 |
304
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305
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=item B<-alias> |
306
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307
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Sets the alias for this client, defaults to 'stomp-client'. |
308
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309
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=item B<-host> |
310
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311
|
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Sets the host to attach too. defaults to 'localhost'. |
312
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313
|
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|
=item B<-port> |
314
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315
|
|
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|
|
Sets the port to use, defaults to 61613. |
316
|
|
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317
|
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|
|
=item B<-login> |
318
|
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319
|
|
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|
|
Sets the login name for this server, defaults to 'guest'. |
320
|
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321
|
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|
|
=item B<-passcode> |
322
|
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|
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323
|
|
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|
|
Sets the passcode for this server, defaults to 'guest'. |
324
|
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|
325
|
|
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|
|
=back |
326
|
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327
|
|
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|
|
=head2 handle_connection(OBJECT) |
328
|
|
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|
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|
|
|
329
|
|
|
|
|
|
|
This event is signaled and the corresponding method is called upon initial |
330
|
|
|
|
|
|
|
connection to the message server. I accepts these parameters: |
331
|
|
|
|
|
|
|
|
332
|
|
|
|
|
|
|
=over 4 |
333
|
|
|
|
|
|
|
|
334
|
|
|
|
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|
|
=item B<OBJECT> |
335
|
|
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|
|
|
|
|
336
|
|
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|
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|
|
The current class object. |
337
|
|
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|
|
|
|
|
338
|
|
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|
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|
|
=back |
339
|
|
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|
|
|
|
|
340
|
|
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|
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|
|
=head2 handle_connected(OBJECT, ARG0) |
341
|
|
|
|
|
|
|
|
342
|
|
|
|
|
|
|
This event and corresponding method is called when a "CONNECT" frame is |
343
|
|
|
|
|
|
|
received from the server. It posts the frame to the 'connection_up' event. |
344
|
|
|
|
|
|
|
It accepts these parameters: |
345
|
|
|
|
|
|
|
|
346
|
|
|
|
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|
|
=over 4 |
347
|
|
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|
|
|
|
|
348
|
|
|
|
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|
|
=item B<OBJECT> |
349
|
|
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|
|
|
|
|
350
|
|
|
|
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|
|
The current class object. |
351
|
|
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|
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|
|
|
352
|
|
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|
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|
|
=item B<ARG0> |
353
|
|
|
|
|
|
|
|
354
|
|
|
|
|
|
|
The current STOMP frame. |
355
|
|
|
|
|
|
|
|
356
|
|
|
|
|
|
|
=back |
357
|
|
|
|
|
|
|
|
358
|
|
|
|
|
|
|
=head2 handle_message(OBJECT, ARG0) |
359
|
|
|
|
|
|
|
|
360
|
|
|
|
|
|
|
This event and corresponding method is used to process "MESSAGE" frames. |
361
|
|
|
|
|
|
|
|
362
|
|
|
|
|
|
|
It accepts these parameters: |
363
|
|
|
|
|
|
|
|
364
|
|
|
|
|
|
|
=over 4 |
365
|
|
|
|
|
|
|
|
366
|
|
|
|
|
|
|
=item B<OBJECT> |
367
|
|
|
|
|
|
|
|
368
|
|
|
|
|
|
|
The current class object. |
369
|
|
|
|
|
|
|
|
370
|
|
|
|
|
|
|
=item B<ARG0> |
371
|
|
|
|
|
|
|
|
372
|
|
|
|
|
|
|
The current STOMP frame. |
373
|
|
|
|
|
|
|
|
374
|
|
|
|
|
|
|
=back |
375
|
|
|
|
|
|
|
|
376
|
|
|
|
|
|
|
Example |
377
|
|
|
|
|
|
|
|
378
|
|
|
|
|
|
|
sub handle_message { |
379
|
|
|
|
|
|
|
my ($self, $frame) = @_[OBJECT,ARG0]; |
380
|
|
|
|
|
|
|
|
381
|
|
|
|
|
|
|
my $nframe = $self->stomp->ack( |
382
|
|
|
|
|
|
|
-message_id => $frame->header->message_id |
383
|
|
|
|
|
|
|
); |
384
|
|
|
|
|
|
|
|
385
|
|
|
|
|
|
|
$poe_kernel->yield('write_data', $nframe); |
386
|
|
|
|
|
|
|
|
387
|
|
|
|
|
|
|
} |
388
|
|
|
|
|
|
|
|
389
|
|
|
|
|
|
|
This example really doesn't do much other then "ack" the messages that are |
390
|
|
|
|
|
|
|
received. |
391
|
|
|
|
|
|
|
|
392
|
|
|
|
|
|
|
=head2 handle_receipt(OBJECT, ARG0) |
393
|
|
|
|
|
|
|
|
394
|
|
|
|
|
|
|
This event and corresponding method is used to process "RECEIPT" frames. |
395
|
|
|
|
|
|
|
It accepts these parameters: |
396
|
|
|
|
|
|
|
|
397
|
|
|
|
|
|
|
=over 4 |
398
|
|
|
|
|
|
|
|
399
|
|
|
|
|
|
|
=item B<OBJECT> |
400
|
|
|
|
|
|
|
|
401
|
|
|
|
|
|
|
The current class object. |
402
|
|
|
|
|
|
|
|
403
|
|
|
|
|
|
|
=item B<ARG0> |
404
|
|
|
|
|
|
|
|
405
|
|
|
|
|
|
|
The current STOMP frame. |
406
|
|
|
|
|
|
|
|
407
|
|
|
|
|
|
|
=back |
408
|
|
|
|
|
|
|
|
409
|
|
|
|
|
|
|
Example |
410
|
|
|
|
|
|
|
|
411
|
|
|
|
|
|
|
sub handle_receipt { |
412
|
|
|
|
|
|
|
my ($self, $frame) = @_[OBJECT,ARG0]; |
413
|
|
|
|
|
|
|
|
414
|
|
|
|
|
|
|
my $receipt = $frame->header->receipt; |
415
|
|
|
|
|
|
|
|
416
|
|
|
|
|
|
|
} |
417
|
|
|
|
|
|
|
|
418
|
|
|
|
|
|
|
This example really doesn't do much, and you really don't need to worry about |
419
|
|
|
|
|
|
|
receipts unless you ask for one when you send a frame to the server. So this |
420
|
|
|
|
|
|
|
method could be safely left with the default. |
421
|
|
|
|
|
|
|
|
422
|
|
|
|
|
|
|
=head2 handle_error(OBJECT, ARG0) |
423
|
|
|
|
|
|
|
|
424
|
|
|
|
|
|
|
This event and corresponding method is used to process "ERROR" frames. |
425
|
|
|
|
|
|
|
It accepts these parameters: |
426
|
|
|
|
|
|
|
|
427
|
|
|
|
|
|
|
=over 4 |
428
|
|
|
|
|
|
|
|
429
|
|
|
|
|
|
|
=item B<OBJECT> |
430
|
|
|
|
|
|
|
|
431
|
|
|
|
|
|
|
The current class object. |
432
|
|
|
|
|
|
|
|
433
|
|
|
|
|
|
|
=item B<ARG0> |
434
|
|
|
|
|
|
|
|
435
|
|
|
|
|
|
|
The current STOMP frame. |
436
|
|
|
|
|
|
|
|
437
|
|
|
|
|
|
|
=back |
438
|
|
|
|
|
|
|
|
439
|
|
|
|
|
|
|
=head2 handle_noop(OBJECT, ARG0) |
440
|
|
|
|
|
|
|
|
441
|
|
|
|
|
|
|
This event and corresponding method is used to process "NOOP" frames. |
442
|
|
|
|
|
|
|
It accepts these parameters: |
443
|
|
|
|
|
|
|
|
444
|
|
|
|
|
|
|
=over 4 |
445
|
|
|
|
|
|
|
|
446
|
|
|
|
|
|
|
=item B<OBJECT> |
447
|
|
|
|
|
|
|
|
448
|
|
|
|
|
|
|
The current class object. |
449
|
|
|
|
|
|
|
|
450
|
|
|
|
|
|
|
=item B<ARG0> |
451
|
|
|
|
|
|
|
|
452
|
|
|
|
|
|
|
The current STOMP frame. |
453
|
|
|
|
|
|
|
|
454
|
|
|
|
|
|
|
=back |
455
|
|
|
|
|
|
|
|
456
|
|
|
|
|
|
|
=head1 ACCESSORS |
457
|
|
|
|
|
|
|
|
458
|
|
|
|
|
|
|
=head2 stomp |
459
|
|
|
|
|
|
|
|
460
|
|
|
|
|
|
|
This returns an object to the internal L<XAS::Lib::Stomp::Utils|XAS::Lib::Stomp::Utils> |
461
|
|
|
|
|
|
|
object. This is very useful for creating STOMP frames. |
462
|
|
|
|
|
|
|
|
463
|
|
|
|
|
|
|
Example |
464
|
|
|
|
|
|
|
|
465
|
|
|
|
|
|
|
$frame = $self->stomp->connect( |
466
|
|
|
|
|
|
|
-login => 'testing', |
467
|
|
|
|
|
|
|
-passcode => 'testing' |
468
|
|
|
|
|
|
|
); |
469
|
|
|
|
|
|
|
|
470
|
|
|
|
|
|
|
$poe_kernel->yield('write_data', $frame); |
471
|
|
|
|
|
|
|
|
472
|
|
|
|
|
|
|
=head1 SEE ALSO |
473
|
|
|
|
|
|
|
|
474
|
|
|
|
|
|
|
=over 4 |
475
|
|
|
|
|
|
|
|
476
|
|
|
|
|
|
|
=item L<XAS|XAS> |
477
|
|
|
|
|
|
|
|
478
|
|
|
|
|
|
|
=back |
479
|
|
|
|
|
|
|
|
480
|
|
|
|
|
|
|
For details on the protocol see L<http://stomp.github.io/>. |
481
|
|
|
|
|
|
|
|
482
|
|
|
|
|
|
|
=head1 AUTHOR |
483
|
|
|
|
|
|
|
|
484
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Kevin L. Esteb, E<lt>=[@kesteb.usE<gt> |
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=head1 COPYRIGHT AND LICENSE |
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Copyright (C) 2014 Kevin L. Esteb |
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This is free software; you can redistribute it and/or modify it under |
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the terms of the Artistic License 2.0. For details, see the full text |
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of the license at http://www.perlfoundation.org/artistic_license_2_0. |
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=cut |