Class: Fluent::AmazonSNSOutput

Inherits:
BufferedOutput
  • Object
show all
Includes:
SetTagKeyMixin, SetTimeKeyMixin
Defined in:
lib/fluent/plugin/out_amazon_sns.rb

Instance Method Summary collapse

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_amazon_sns.rb', line 26

def configure(conf)
  super

  @topic_generator = case
                     when @topic_name
                       ->(tag, record){ @topic_name }
                     when @topic_map_key
                       ->(tag, record){ record[@topic_map_key] }
                     when @topic_map_tag
                       ->(tag, record){ tag.gsub(/^#{@remove_tag_prefix}(\.)?/, '') }
                     else
                       raise Fluent::ConfigError, "no one way specified to decide target"
                     end
end

#format(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_amazon_sns.rb', line 59

def format(tag, time, record)
  [tag, time, record].to_msgpack
end

#get_topics ⇒ Object 



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# File 'lib/fluent/plugin/out_amazon_sns.rb', line 77

def get_topics
  @sns.topics.inject({}) do |product, topic|
    product[topic.arn.split(/:/).last] = topic
    product
  end
end

#shutdown ⇒ Object 



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

def shutdown
  super
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/out_amazon_sns.rb', line 41

def start
  super

  options = {}
  [:access_key_id, :secret_access_key, :region].each do |key|
    options[key] = instance_variable_get "@aws_#{key}"
  end
  options[:http_proxy] = @aws_proxy_uri

  sns_client = Aws::SNS::Client.new(options)
  @sns = Aws::SNS::Resource.new(client: sns_client)
  @topics = get_topics
end

#write(chunk) ⇒ Object 



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# File 'lib/fluent/plugin/out_amazon_sns.rb', line 63

def write(chunk)
  chunk.msgpack_each do |tag, time, record|
    record["time"] = Time.at(time).localtime
    subject = record.delete(@subject_key) || @subject  || 'Fluent-Notification'
    topic = @topic_generator.call(tag, record)
    topic = topic.gsub(/\./, '-') if topic # SNS doesn't allow .
    if @topics[topic]
      @topics[topic].publish(message: record.to_json, subject: subject)
    else
      $log.error "Could not find topic '#{topic}' on SNS"
    end
  end
end