Class: Plugin::RecordModifierOutput

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

Defined Under Namespace

Classes: DynamicExpander

Instance Method Summary collapse

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_record_modifier.rb', line 55

def configure(conf)
  super

  @map = {}
  @to_enc = nil
  if @char_encoding
    from, to = @char_encoding.split(':', 2)
    @from_enc = Encoding.find(from)
    @to_enc = Encoding.find(to) if to

    m = if @to_enc
          method(:convert_encoding)
        else
          method(:set_encoding)
        end

    (class << self; self; end).module_eval do
      define_method(:change_encoding, m)
    end
  end

  @has_tag_parts = false
  conf.elements.select { |element| element.name == 'record' }.each do |element|
    element.each_pair do |k, v|
      element.has_key?(k) # to suppress unread configuration warning
      @has_tag_parts = true if v.include?('tag_parts')
      @map[k] = DynamicExpander.new(k, v, @prepare_value)
    end
  end

  if @remove_keys and @whitelist_keys
    raise Fluent::ConfigError, "remove_keys and whitelist_keys are exclusive with each other."
  elsif @remove_keys
    @remove_keys = @remove_keys.split(',').map(&:strip)
  elsif @whitelist_keys
    @whitelist_keys = @whitelist_keys.split(',').map(&:strip)
    @whitelist_keys.concat(@map.keys).uniq!
  end

  @has_tag_parts = true if @tag.include?('tag_parts')
  @tag_ex = DynamicExpander.new('tag', @tag, @prepare_value)

    # Collect DynamicExpander related garbage instructions
  GC.start
end

#multi_workers_ready? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/plugin/out_record_modifier.rb', line 101

def multi_workers_ready?
  true
end

#process(tag, es) ⇒ Object 



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# File 'lib/fluent/plugin/out_record_modifier.rb', line 105

def process(tag, es)
  tag_parts = @has_tag_parts ? tag.split('.') : nil
  if @tag_ex.param_value.nil?
    result = {}
    es.each { |time, record|
      new_record = modify_record(tag, time, record, tag_parts)
      new_tag = @tag_ex.expand(tag, time, new_record, tag_parts)
      result[new_tag] ||= MultiEventStream.new
      result[new_tag].add(time, new_record)
    }
    result.each { |tag, stream|
      router.emit_stream(tag, stream)
    }
  else
    stream = MultiEventStream.new
    es.each { |time, record|
      new_record = modify_record(tag, time, record, tag_parts)
      stream.add(time, new_record)
    }
    router.emit_stream(@tag, stream)
  end
end