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package XAS::Lib::Log::Json; |
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our $VERSION = '0.01'; |
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use XAS::Factory; |
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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::Base', |
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utils => ':validation level2syslog', |
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codec => 'JSON', |
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accessors => 'spooler', |
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constants => 'HASHREF', |
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filesystem => 'Dir', |
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# note to self: Don't but $self->log->debug() statements in here |
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# it will produce a nice race condition. |
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# ---------------------------------------------------------------------- |
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# Public Methods |
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# ---------------------------------------------------------------------- |
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sub output { |
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my $self = shift; |
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my ($args) = validate_params(\@_, [ |
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{ type => HASHREF } |
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]); |
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my $message = sprintf('[%s] %-5s - %s', |
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$args->{'datetime'}->strftime('%Y-%m-%d %H:%M:%S'), |
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uc($args->{'priority'}), |
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$args->{'message'} |
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); |
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# create a logstash "json_event" |
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my $data = { |
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'@timestamp' => $args->{'datetime'}->strftime('%Y-%m-%dT%H:%M:%S.%3N%z'), |
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'@version' => '1', |
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'@message' => $message, |
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type => 'xas-logs', |
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message => $args->{'message'}, |
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hostname => $args->{'hostname'}, |
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priority => level2syslog($args->{'priority'}), |
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facility => $args->{'facility'}, |
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process => $args->{'process'}, |
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pid => $args->{'pid'} |
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}; |
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my $json = encode($data); |
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# write the spool file |
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$self->spooler->write($json); |
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} |
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# ---------------------------------------------------------------------- |
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# Private Methods |
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# ---------------------------------------------------------------------- |
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sub init { |
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my $class = shift; |
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my $self = $class->SUPER::init(@_); |
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$self->{'spooler'} = XAS::Factory->module('spool', { |
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-directory => Dir($self->env->spool, 'logs'), |
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-lock => Dir($self->env->spool, 'logs', 'locked')->path, |
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}); |
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return $self; |
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} |
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1; |
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__END__ |
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=head1 NAME |
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XAS::Lib::Log::Json - A class for logging with JSON output |
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=head1 DESCRIPTION |
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This module creates JSON output in the logstash "json_event" format which |
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is then logged to the logs spool directory. |
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=head1 METHODS |
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=head2 new |
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This method initializes the module. It creates a spool object for writing |
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the "json_event". |
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=head2 output($hashref) |
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This method formats the hashref and writes out the results. The JSON data |
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structure has the following fields: |
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@timestamp - current time in GMT |
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@version - 1 |
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@message - the line that would have gone to a log file |
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type - 'xas-logs', |
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message - the log line |
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hostname - from the environment host name |
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pid - the pid of the process |
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msgid - 0 |
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priority - converted from XAS log level to syslog priority |
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facility - from the environment log_facility |
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process - from the environment script name |
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=head1 SEE ALSO |
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=over 4 |
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=item L<XAS::Lib::Log|XAS::Lib::Log> |
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=item L<XAS|XAS> |
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=back |
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=head1 AUTHOR |
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Kevin L. Esteb, E<lt>kevin@kesteb.usE<gt> |
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=head1 COPYRIGHT AND LICENSE |
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Copyright (c) 2012-2015 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 |