Class: Fluent::FalconOutput

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

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FalconOutput

Returns a new instance of FalconOutput.



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# File 'lib/fluent/plugin/out_falcon.rb', line 4

def initialize
  super
  require 'net/http'
  require 'uri'
  require 'yajl'
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_falcon.rb', line 28

def configure(conf)
  super

  @auth = case @authentication
          when 'basic' then :basic
          else
            :none
          end
end

#create_request(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_falcon.rb', line 60

def create_request(tag, time, record)
  url = format_url(tag, time, record)
  uri = URI.parse(url)
  req = Net::HTTP.const_get('Post').new(uri.path)
  set_body(req, tag, time, record)
  set_header(req, tag, time, record)
  return req, uri
end

#emit(tag, es, chain) ⇒ Object 



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

def emit(tag, es, chain)
  es.each do |time, record|
    handle_record(tag, time, record)
  end
  chain.next
end

#format_url(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_falcon.rb', line 46

def format_url(tag, time, record)
  @endpoint_url
end

#handle_record(tag, time, record) ⇒ Object

end send_request



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# File 'lib/fluent/plugin/out_falcon.rb', line 100

def handle_record(tag, time, record)
  req, uri = create_request(tag, time, record)
  send_request(req, uri)
end

#send_request(req, uri) ⇒ Object 



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# File 'lib/fluent/plugin/out_falcon.rb', line 69

def send_request(req, uri)    
  is_rate_limited = (@rate_limit_msec != 0 and not @last_request_time.nil?)
  if is_rate_limited and ((Time.now.to_f - @last_request_time) * 1000.0 < @rate_limit_msec)
    $log.info('Dropped request due to rate limiting')
    return
  end
  
  res = nil

  begin
    if @auth and @auth == :basic
      req.basic_auth(@username, @password)
    end
    @last_request_time = Time.now.to_f
    res = Net::HTTP.new(uri.host, uri.port).start {|http| http.request(req) }
  rescue => e # rescue all StandardErrors
    # server didn't respond
    $log.warn "Net::HTTP.#{req.method.capitalize} raises exception: #{e.class}, '#{e.message}'"
    raise e if @raise_on_error
  else
     unless res and res.is_a?(Net::HTTPSuccess)
        res_summary = if res
                         "#{res.code} #{res.message} #{res.body}"
                      else
                         "res=nil"
                      end
        $log.warn "failed to #{req.method} #{uri} (#{res_summary})"
     end #end unless
  end # end begin
end

#set_body(req, tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_falcon.rb', line 50

def set_body(req, tag, time, record)
  req.body = Yajl.dump(eval(@records))
  req['Content-Type'] = 'application/json'
  req
end

#set_header(req, tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_falcon.rb', line 56

def set_header(req, tag, time, record)
  req
end

#shutdown ⇒ Object 



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

def shutdown
  super
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/out_falcon.rb', line 38

def start
  super
end