Class: Fluent::JsonNestToFlatOutput

Inherits:
Output
  • Object
show all
Defined in:
lib/fluent/plugin/out_json_nest2flat.rb

Instance Method Summary collapse

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_json_nest2flat.rb', line 10

def configure(conf)
    super

    @json_keys = conf['json_keys']
    if @json_keys.nil?
        raise Fluent::ConfigError, "json_keys is required!"
    end

    @tag = conf['tag']
    @add_tag_prefix = conf['add_tag_prefix']
    if @tag.nil? && @add_tag_prefix.nil?
        raise Fluent::ConfigError, "tag or add_tag_prefix is required!"
    end

    @enabled_tag = false
    if !@tag.nil?
        @enabled_tag = true
    end

    @json_keys = @json_keys.split(",")

    @ignore_item_keys = conf['ignore_item_keys']

    if !@ignore_item_keys.nil?
        begin
            @ignore_item_keys = JSON.parse(@ignore_item_keys)
        rescue => e
           raise Fluent::ConfigError, "ignore_item_keys is illegal! ignore_item_keys=#{@ignore_item_keys}"
        end
    end
end

#emit(tag, es, chain) ⇒ Object 



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# File 'lib/fluent/plugin/out_json_nest2flat.rb', line 42

def emit(tag, es, chain)
    es.each { |time, record|
        chain.next

        new_record = nil
        begin
            new_record = _convert_record(record);
        rescue => e
            $log.error "json_data is parse error.", :error=>e.to_s
        end

        if @enabled_tag
            Fluent::Engine.emit(@tag, time, new_record)
        else
            Fluent::Engine.emit("#{@add_tag_prefix}.#{tag}", time, new_record)
        end 
    }
end