Class: TwitterAdapter

Inherits:
Adapter show all
Includes:
Logging
Defined in:
lib/business/adapter/twitter_adapter.rb

Overview

Self implementation from Adapter class to make it works with Twitter Streaming API

Author:

  • Daniel Machado Fernandez

Version:

  • 1.0

Constant Summary

Constants included from Logging

Logging::KermitPFC

Instance Method Summary collapse

Methods included from Logging

#logger, logger

Constructor Details

#initialize ⇒ TwitterAdapter

Configures the dao with the apropiates params



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# File 'lib/business/adapter/twitter_adapter.rb', line 17

def initialize

	@dao = DAO.new 'twitter'

end

Instance Method Details

#connect_stream(stream = 1) ⇒ Object

Connects to the Twitter Streaming API and retrieves statuses with a track word previously defined

Parameters:

  • stream (Integer) (defaults to: 1) —

    the number of the stream to identify it (use it when you have got more than one)



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# File 'lib/business/adapter/twitter_adapter.rb', line 26

def connect_stream (stream=1)

	puts 'retrieving... '
	track = Settings.twitter.track.send("track#{stream}")

	logger.info("Starting Twitter adapter ##{track}")

	EventMachine::run {

		stream = Twitter::JSONStream.connect(
		   	:path    => "/1/statuses/filter.json?track=#{track}",
	    	:auth    => "#{Settings.twitter.}:#{Settings.twitter.pass}",
	    	:ssl     => true,
	    	:port    => Settings.twitter.port
	  	)

	  	stream.each_item do |status|

	  		persist status
			
	  	end
	  
		stream.on_error do |message|
		    logger.error("#{message}")
		end
		  
		stream.on_reconnect do |timeout, retries|
		    logger.warn("reconnecting in: #{timeout} seconds\n")
		end
		  
		stream.on_max_reconnects do |timeout, retries|
		    logger.fatal("Failed after #{retries} failed reconnects\n")
		end
	  
	  	trap('TERM') {
	    	stream.stop
	  	}
	}
end

#persist(status) ⇒ Object

Saves the tweet into the database

Parameters:

  • status (String) —

    tweet retrieved previously



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# File 'lib/business/adapter/twitter_adapter.rb', line 69

def persist status
	
	@dao.save_status status

end