Class: TwitterConverter

Inherits:
Converter show all
Includes:
Logging
Defined in:
lib/business/converter/twitter_converter.rb

Overview

Twitter Specification from Converter

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

Instance Method Details

#to_usmf(status) ⇒ USMF

Field to field parsing to become a tweet into a USMF message

Parameters:

  • status (String) —

    the tweet previously retrieved

Returns:

  • (USMF) —

    the resultant message



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# File 'lib/business/converter/twitter_converter.rb', line 22

def to_usmf status

	usmf = USMF.new
	user = User.new

	status = JSON.parse(status)
	if status.has_key? 'Error'
		logger.error("tweet malformed")
		raise "status malformed"
	end

	#Retrieving a status from Twitter
	usmf.service = "Twitter"
	usmf.id = status["id_str"]
	

	x = status["coordinates"]
	unless x==nil
		usmf.geo = x["coordinates"]
	end
	
	usmf.application = status["source"]
	

	x = status["place"]
	unless x == nil
		usmf.location = x["full_name"] + " , " + x["country"]
	end

	usmf.date = status["created_at"]
	usmf.text = status["text"]
	usmf.description = status["in_reply_to_status_id_str"]
	usmf.likes = status["retweet_count"]

	#Retrieving user
	x = status["user"]
	unless x == nil
		user.name = x["screen_name"]
		user.real_name = x["name"]
		user.id = x["id_str"]
		user.language = x["lang"]

		unless x["time_zone"] == nil and x["utc_offset"] == nil
			user.utc = x["time_zone"].to_s + " + " + x["utc_offset"].to_s
		end

		user.description = x["description"]
		user.avatar = x["profile_image_url_https"]
		user.location = x["location"]
		user.subscribers = x["followers_count"]
		user.subscriptions = x["friends_count"]
		user.postings = x["statuses_count"]
		user.profile = "https://twitter.com/#!/#{user.name}"
		user.website = x["url"]

		usmf.user = user
		usmf.source = "https://twitter.com/#{usmf.user.name}/status/#{usmf.id}"
	end
	

	usmf.to_users = []
	usmf.links = []

	#Retrieving entities

	entities = status["entities"]
	unless entities == nil
	
	#Retrieving URLs

		x = entities["urls"]
		unless x == nil
			x.each do |item|
				l = Link.new
				l.href = item["url"]
				
				usmf.links << l
			end
		end

	#Retrieving all media content

		x = entities["media"]
		unless x == nil
			x.each do |item|
				l = Link.new
				l.title = item["type"]
				l.thumbnail = item["media_url"]
				l.href = item["url"]
				
				usmf.links << l
			end
		end

		#Retrieving hashtags

		x = entities["hashtags"]
		unless x == nil

			usmf.keywords = ""
			x.each do |h| 

				usmf.keywords += h["text"] + ", "

			end

		end

		#Retrieving mentions

		x = entities["user_mentions"]
		unless x == nil
			x.each do |item|
				tu = ToUser.new

				tu.name = item["screen_name"]
				tu.id = item["id_str"]

				if item["id_str"] == status["in_reply_to_user_id_str"]
					tu.service = "reply"
				else
					tu.service = "mention"
				end
				unless status["in_reply_to_status_id_str"] == nil
					tu.title = status["in_reply_to_status_id_str"]
					tu.href = "https://twitter.com/#{tu.name}/status/#{tu.title}"
				end

				usmf.to_users << tu
			end
		end

	end

	usmf

end