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package Plack::App::Gearman::Status; |
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{ |
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$Plack::App::Gearman::Status::VERSION = '0.001001'; |
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} |
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use parent qw(Plack::Component); |
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# ABSTRACT: Plack application to display the status of Gearman job servers |
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use strict; |
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use warnings; |
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use Carp; |
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use MRO::Compat; |
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use Net::Telnet::Gearman; |
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use Text::MicroTemplate; |
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use Try::Tiny; |
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use Plack::Util::Accessor qw(job_servers template connections); |
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chomp(my $template_string = <<'EOTPL'); |
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Gearman Server Status |
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Gearman Server Status |
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<% for my $job_server_status (@{$_[0]}) { %> |
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Job server <%= $job_server_status->{job_server} %> |
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<% if ($job_server_status->{error}) { %> |
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<%= $job_server_status->{error} %> |
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<% } else { %> |
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Server Version: <%= $job_server_status->{version} %> |
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Workers |
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| File Descriptor |
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| IP Address |
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| Client ID |
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| Functions |
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108
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<% for my $worker (@{$job_server_status->{workers}}) { %> |
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| <%= $worker->file_descriptor() %> |
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| <%= $worker->ip_address() %> |
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| <%= $worker->client_id() %> |
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| <%= join(', ', sort @{$worker->functions()}) %> |
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<% } %> |
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Status |
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| Function |
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| Total |
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| Running |
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| Available Workers |
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| Queue |
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127
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<% for my $status (@{$job_server_status->{status}}) { %> |
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| <%= $status->name() %> |
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| <%= $status->running() %> |
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| <%= $status->busy() %> |
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| <%= $status->free() %> |
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| <%= $status->queue() %> |
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<% } %> |
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<% } %> |
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<% } %> |
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EOTPL |
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144
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145
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sub new { |
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5
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5
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1
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44545
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my ($class, @arg) = @_; |
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148
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5
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100
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my $self = $class->next::method(@arg); |
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150
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5
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100
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355
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unless (ref $self->job_servers() eq 'ARRAY') { |
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3
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359
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$self->job_servers(['127.0.0.1:4730']); |
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} |
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154
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5
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163
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$self->connections({}); |
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156
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5
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156
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$self->template(Text::MicroTemplate->new( |
157
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template => $template_string, |
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tag_start => '<%', |
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tag_end => '%>', |
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line_start => '%', |
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)->build()); |
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163
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5
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48505
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return $self; |
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} |
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166
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167
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168
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sub parse_job_server_address { |
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14
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14
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1
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27733
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my ($self, $address) = @_; |
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171
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14
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50
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57
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unless (defined $address) { |
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0
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0
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croak("Required job server address parameter not passed"); |
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} |
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175
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14
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100
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194
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$address =~ m{^ |
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# IPv6 address or hostname/IPv4 address |
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(?:\[([\d:]+)\]|([\w.-]+)) |
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# Optional port |
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(?::(\d+))? |
180
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$}xms or croak("Unable to parse address '$address'"); |
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10
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66
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65
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my $host = $1 || $2; |
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10
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100
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38
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my $port = $3 || 4730; |
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184
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10
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38
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return ($host, $port); |
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} |
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187
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188
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189
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sub connection { |
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2
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2
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1
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30
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my ($self, $address) = @_; |
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192
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2
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19
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my ($host, $port) = $self->parse_job_server_address($address); |
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2
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3
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my $connection; |
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try { |
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2
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2
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255
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$connection = Net::Telnet::Gearman->new( |
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Host => $host, |
197
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Port => $port, |
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); |
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} |
200
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catch { |
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0
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0
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0
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carp $_; |
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2
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56
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}; |
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2
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4841
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return $connection; |
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} |
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206
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207
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208
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sub get_status { |
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1
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1
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1
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53
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my ($self) = @_; |
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211
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1
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11
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my @result; |
212
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1
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17
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for my $job_server (@{$self->job_servers()}) { |
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17
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213
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1
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50
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91
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unless (defined $self->connections()->{$job_server}) { |
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1
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24
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$self->connections()->{$job_server} = $self->connection($job_server); |
215
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} |
216
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try { |
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1
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40
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push @result, { |
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job_server => $job_server, |
219
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workers => [ $self->connections()->{$job_server}->workers() ], |
220
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status => [ $self->connections()->{$job_server}->status() ], |
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version => $self->connections()->{$job_server}->version(), |
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}; |
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} |
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catch { |
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0
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0
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0
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delete $self->connections()->{$job_server}; |
226
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0
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0
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push @result, { |
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job_server => $job_server, |
228
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error => 'Failed to fetch status information from '.$job_server, |
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} |
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1
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30
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}; |
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} |
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233
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1
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1384
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return \@result; |
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} |
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236
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237
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238
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sub call { |
239
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0
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0
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1
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my ($self, $env) = @_; |
240
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241
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return [ |
242
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0
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200, |
243
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[ 'Content-Type' => 'text/html; charset=utf-8' ], |
244
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[ $self->template()->($self->get_status()) ] |
245
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]; |
246
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} |
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248
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249
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250
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1; |
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252
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253
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__END__ |