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Original file line number | Diff line number | Diff line change |
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@@ -1,21 +1,12 @@ | ||
# Be lazy to to implement filter plugin, use output plugin instance | ||
require_relative 'out_flowcounter_simple' | ||
require 'forwardable' | ||
require_relative 'flowcounter_simple' | ||
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class Fluent::FlowCounterSimpleFilter < Fluent::Filter | ||
Fluent::Plugin.register_filter('flowcounter_simple', self) | ||
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extend Forwardable | ||
attr_reader :output | ||
def_delegators :@output, :configure, :start, :shutdown, :flush_emit | ||
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def initialize | ||
super | ||
@output = Fluent::FlowCounterSimpleOutput.new | ||
end | ||
include ::Fluent::FlowcounterSimple | ||
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def filter_stream(tag, es) | ||
@output.emit(tag, es, Fluent::NullOutputChain.instance) | ||
process(tag, es) | ||
es | ||
end | ||
end if defined?(Fluent::Filter) |
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module Fluent | ||
module FlowcounterSimple | ||
attr_accessor :last_checked | ||
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def self.included(klass) | ||
klass.config_param :indicator, :string, :default => 'num' | ||
klass.config_param :unit, :string, :default => 'second' | ||
klass.config_param :comment, :string, :default => nil | ||
end | ||
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def configure(conf) | ||
super | ||
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@indicator_proc = | ||
case @indicator | ||
when 'num' then Proc.new {|record| 1 } | ||
when 'byte' then Proc.new {|record| record.to_msgpack.size } | ||
else | ||
raise Fluent::ConfigError, "flowcounter-simple count allows num/byte" | ||
end | ||
@unit = | ||
case @unit | ||
when 'second' then :second | ||
when 'minute' then :minute | ||
when 'hour' then :hour | ||
when 'day' then :day | ||
else | ||
raise Fluent::ConfigError, "flowcounter-simple unit allows second/minute/hour/day" | ||
end | ||
@tick = | ||
case @unit | ||
when :second then 1 | ||
when :minute then 60 | ||
when :hour then 3600 | ||
when :day then 86400 | ||
else | ||
raise RuntimeError, "@unit must be one of second/minute/hour/day" | ||
end | ||
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@output_proc = | ||
if @comment | ||
Proc.new {|count| "plugin:out_flowcounter_simple\tcount:#{count}\tindicator:#{@indicator}\tunit:#{@unit}\tcomment:#{@comment}" } | ||
else | ||
Proc.new {|count| "plugin:out_flowcounter_simple\tcount:#{count}\tindicator:#{@indicator}\tunit:#{@unit}" } | ||
end | ||
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@count = 0 | ||
@mutex = Mutex.new | ||
end | ||
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def start | ||
super | ||
start_watch | ||
end | ||
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def shutdown | ||
super | ||
@watcher.terminate | ||
@watcher.join | ||
end | ||
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def countup(count) | ||
@mutex.synchronize { | ||
@count = (@count || 0) + count | ||
} | ||
end | ||
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def flush_emit(step) | ||
count, @count = @count, 0 | ||
if count > 0 | ||
log.info @output_proc.call(count) | ||
end | ||
end | ||
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def start_watch | ||
# for internal, or tests only | ||
@watcher = Thread.new(&method(:watch)) | ||
end | ||
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def watch | ||
# instance variable, and public accessable, for test | ||
@last_checked = Fluent::Engine.now | ||
while true | ||
sleep 0.1 | ||
if Fluent::Engine.now - @last_checked >= @tick | ||
now = Fluent::Engine.now | ||
flush_emit(now - @last_checked) | ||
@last_checked = now | ||
end | ||
end | ||
end | ||
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def process(tag, es) | ||
count = 0 | ||
es.each {|time,record| | ||
count += @indicator_proc.call(record) | ||
} | ||
countup(count) | ||
end | ||
end | ||
end |
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