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bypass gelf library level mapping #29

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bypass gelf library level mapping #29

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32 changes: 19 additions & 13 deletions lib/fluent/plugin/out_gelf.rb
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Original file line number Diff line number Diff line change
@@ -1,6 +1,11 @@
module Fluent

class GELFOutput < BufferedOutput
class IdentityMap
def self.[](x)
x
end
end

Plugin.register_output("gelf", self)

Expand Down Expand Up @@ -37,7 +42,7 @@ def start
@conn = GELF::Notifier.new(@host, @port, 'WAN', {:facility => 'fluentd', :protocol => @proto})

# Errors are not coming from Ruby so we use direct mapping
@conn.level_mapping = 'direct'
@conn.level_mapping = IdentityMap
# file and line from Ruby are in this class, not relevant
@conn.collect_file_and_line = false
end
Expand Down Expand Up @@ -68,18 +73,19 @@ def format(tag, time, record)
if @use_record_host then gelfentry[:host] = v
else gelfentry[:_host] = v end
when 'level' then
case "#{v}".downcase
# emergency and alert aren't supported by gelf-rb
when '0', 'emergency' then gelfentry[:level] = GELF::UNKNOWN
when '1', 'alert' then gelfentry[:level] = GELF::UNKNOWN
when '2', 'critical', 'crit' then gelfentry[:level] = GELF::FATAL
when '3', 'error', 'err' then gelfentry[:level] = GELF::ERROR
when '4', 'warning', 'warn' then gelfentry[:level] = GELF::WARN
# gelf-rb also skips notice
when '5', 'notice' then gelfentry[:level] = GELF::INFO
when '6', 'informational', 'info' then gelfentry[:level] = GELF::INFO
when '7', 'debug' then gelfentry[:level] = GELF::DEBUG
else gelfentry[:_level] = v
if v.is_a? Fixnum then gelfentry[:level] = v
else
case v.to_s.downcase
when 'emergency' then gelfentry[:level] = 0
when 'alert' then gelfentry[:level] = 1
when 'critical', 'crit' then gelfentry[:level] = 2
when 'error', 'err' then gelfentry[:level] = 3
when 'warning', 'warn' then gelfentry[:level] = 4
when 'notice' then gelfentry[:level] = 5
when 'informational', 'info' then gelfentry[:level] = 6
when 'debug' then gelfentry[:level] = 7
else gelfentry[:_level] = v
end
end
when 'msec' then
# msec must be three digits (leading/trailing zeroes)
Expand Down