Module: TingYun::TingYunService::Request

Included in:
Http
Defined in:
lib/ting_yun/ting_yun_service/request.rb

Instance Method Summary collapse

Instance Method Details

#check_post_size(post) ⇒ Object

Raises:



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# File 'lib/ting_yun/ting_yun_service/request.rb', line 57

def check_post_size(post)
  size = post.size
  return if size < TingYun::Agent.config[:post_size_limit]
  TingYun::Agent.logger.debug "Tried to send too much data: #{size} bytes"
  raise TingYun::Support::Exception::UnrecoverableServerException.new('413 Request Entity Too Large')
end

#compress_request_if_needed(data) ⇒ Object 



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# File 'lib/ting_yun/ting_yun_service/request.rb', line 47

def compress_request_if_needed(data)
  encoding = 'identity'
  if data.size > 64*1024
    data = TingYun::Support::Serialize::Encoders::Compressed.encode(data)
    encoding = 'deflate'
  end
  check_post_size(data)
  [data, encoding]
end

#send_request(opts) ⇒ Object

Posts to the specified server, retry every minute if ServerConnectionException



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# File 'lib/ting_yun/ting_yun_service/request.rb', line 10

def send_request(opts)
  request = Net::HTTP::Post.new(opts[:uri], 'CONTENT-ENCODING' => opts[:encoding], 'HOST' => opts[:collector].name)
  request['user-agent'] = user_agent
  request.content_type = "application/octet-stream"
  request.body = opts[:data]
  response = nil
  max_attempts = 2
  attempts = 0
  begin
    attempts += 1
    conn = http_connection
    TingYun::Agent.logger.debug "Sending request to #{opts[:collector]}#{opts[:uri]}"
    TingYun::Support::TimerLib.timeout(@request_timeout) do
      response = conn.request(request)
    end
  rescue *CONNECTION_ERRORS => e
    close_shared_connection
    if attempts < max_attempts
      TingYun::Agent.logger.debug("Retrying request to #{opts[:collector]}#{opts[:uri]} after #{e}")
      retry
    else
      raise TingYun::Support::Exception::ServerConnectionException, "Recoverable error talking to #{@collector} after #{attempts} attempts: #{e}"
    end
  end
  TingYun::Agent.logger.debug "Received response, status: #{response.code}, encoding: '#{response['content-encoding']}'"

  case response
    when Net::HTTPSuccess
      true # do nothing
    else
      raise TingYun::Support::Exception::ServerConnectionException, "Unexpected response from server (#{response.code}): #{response.message}"
  end
  response
end

#user_agent ⇒ Object 



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# File 'lib/ting_yun/ting_yun_service/request.rb', line 64

def user_agent
  ruby_description = ''
  # note the trailing space!
  ruby_description << "(ruby #{::RUBY_VERSION} #{::RUBY_PLATFORM}) " if defined?(::RUBY_VERSION) && defined?(::RUBY_PLATFORM)
  zlib_version = ''
  zlib_version << "zlib/#{Zlib.zlib_version}" if defined?(::Zlib) && Zlib.respond_to?(:zlib_version)
  "NBS Newlens Agent/#{TingYun::VERSION::STRING} #{ruby_description}#{zlib_version}"
end

#valid_to_marshal?(data) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ting_yun/ting_yun_service/request.rb', line 73

def valid_to_marshal?(data)
  @marshaller.dump(data)
  true
rescue StandardError, SystemStackError => error
  TingYun::Agent.logger.warn("Unable to marshal environment report on connect.", error)
  false
end