Class: Messed::Interface::Adapter::TwitterSearch

Inherits:
TwitterConsumer show all
Defined in:
lib/messed/interface/adapter/twitter_search.rb

Constant Summary

Constants inherited from Messed::Interface::Adapter

Registry

Instance Attribute Summary collapse

Attributes inherited from TwitterConsumer

#errors, #last_error, #last_ok, #last_status, #started_at

Attributes inherited from Messed::Interface::Adapter

#interface

Instance Method Summary collapse

Methods inherited from TwitterConsumer

#init, #status, #type

Methods inherited from Messed::Interface::Adapter

for_name, #init, #initialize, #load_state, register_for_name, #save_state, #send, #state_file, #type

Methods included from Logger::LoggingModule

included, #logger, #logger=

Constructor Details

This class inherits a constructor from Messed::Interface::Adapter

Instance Attribute Details

#packets_processed ⇒ Object (readonly)

Returns the value of attribute packets_processed.



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 9

def packets_processed
  @packets_processed
end

Instance Method Details

#build_query ⇒ Object 



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 11

def build_query
  Rack::Utils.build_query(interface.configuration.options[:fetch][:query])
end

#default_ids ⇒ Object 



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 76

def default_ids
  store_ids? ? read_ids : []
rescue 
  logger.error "Twitter Search: Unable to load ids from #{id_retention_file.inspect}"
  []
end

#id_retention_count ⇒ Object 



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 54

def id_retention_count
  interface.configuration.options[:id_retention_size] || 500
end

#id_retention_file ⇒ Object 



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 83

def id_retention_file
  interface.configuration.options[:id_retention_tmp_file]
end

#read_ids ⇒ Object 



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 72

def read_ids
  @ids = JSON.parse(File.read(id_retention_file))
end

#result_to_message(result) ⇒ Object 



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 87

def result_to_message(result)
  unless @test_set.include?(result['id'])
    message = Message::Twitter.new do |m|
      m.body = result['text']
      m.from = result['from_user']
      m.to = result['to_user_id']
      m.created_at = Time.rfc2822(result['created_at'])
      m.profile_image_url = result['profile_image_url']
      m.id = result['id']
      m.geo = result['geo']
      m.from_user_id = result['from_user_id']
      m.iso_language_code = result['iso_language_code']
      m.source = result['source']
    end
    @ids << message.id
    @packets_processed += 1
    interface.application.incoming << message
    logger.debug "Twitter Search: Adding message #{message.id}: #{message.body} to incoming queue"
  end
end

#start ⇒ Object 



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 15

def start
  @ids ||= default_ids
  # do work.
  begin
    query = build_query
    logger.debug "Twitter Search -> #{query.inspect}"
    http = EventMachine::HttpRequest.new("http://#{interface.configuration.options[:fetch][:host]}/#{interface.configuration.options[:fetch][:path]}").
      get(:query => query, :timeout => 30)
    http.callback {
      self.last_status = http.response_header.status
      case http.response_header.status
        when 200
          self.last_ok = Time.new
          data = JSON.parse(http.response)
          interface.configuration.options[:fetch][:query][:since_id] = data['max_id'] if interface.configuration.options[:fetch][:query]
          @test_set = Set.new(@ids)
          data['results'].each do |result|
            result_to_message(result)
          end
          trim_ids
      end
      EM.add_timer(interface.configuration.options[:interval]) do
        start
      end
    }
    http.errback {
      self.errors += 1
      self.last_error = Time.new
      EM.add_timer(interface.configuration.options[:interval]) do
        start
      end
    }
  rescue RuntimeError
    EM.add_timer(interface.configuration.options[:interval]) do
      start
    end
  end
end

#store_ids? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/messed/interface/adapter/twitter_search.rb', line 64

def store_ids?
  id_retention_file
end

#trim_ids ⇒ Object 



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 58

def trim_ids
  while @ids.size > id_retention_count
    @ids.shift
  end
end

#write_ids ⇒ Object 



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# File 'lib/messed/interface/adapter/twitter_search.rb', line 68

def write_ids
  File.open(id_retention_file, 'w') { |f| f << @ids.to_json }
end