Class: Fluent::ExcludeFilterOutput

Inherits:
Output
  • Object
show all
Defined in:
lib/fluent/plugin/out_exclude_filter.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ExcludeFilterOutput

Returns a new instance of ExcludeFilterOutput.



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# File 'lib/fluent/plugin/out_exclude_filter.rb', line 11

def initialize
  super
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_exclude_filter.rb', line 15

def configure(conf)
  super

  @key = @key.to_s
  @value = @value.to_s 
  @tag_prefix = "#{@add_tag_prefix}."

  @tag_proc =
    if @tag_prefix
      Proc.new {|tag| "#{@tag_prefix}#{tag}" }
    else
      Proc.new {|tag| tag }
    end

 @excludes_yml = nil
 if @file_path
   @excludes_yml = YAML.load_file(@file_path)
 end 
end

#emit(tag, es, chain) ⇒ Object 



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# File 'lib/fluent/plugin/out_exclude_filter.rb', line 35

def emit(tag, es, chain)
  emit_tag = @tag_proc.call(tag)

  es.each do |time,record|
    if @key && @value
      next if match(@key, @value, record) 
    end
    if @excludes_yml
      next if yml_match(record)
    end 

    Fluent::Engine.emit(emit_tag, time, record)
  end

  chain.next
end

#match(k, v, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_exclude_filter.rb', line 68

def match(k, v, record)
  if @regexp
    return Regexp.compile(v.to_s).match(record[k])
  else
    return record[k] == v.to_s
  end
end

#yml_match(record) ⇒ Object 



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# File 'lib/fluent/plugin/out_exclude_filter.rb', line 52

def yml_match(record)
  @excludes_yml.each{|k,v| 
    if v.kind_of?(Array)
      v.each{|va|
        if match(k, va, record)
          return true
        end
      }
    else
      if match(k, v, record)
        return true
      end
    end
  }
  return false
end