Class: LogStash::Inputs::Twitter

Inherits:
Base
  • Object
show all
Defined in:
lib/logstash/inputs/twitter.rb

Overview

Read events from the twitter streaming api.

Instance Method Summary collapse

Instance Method Details

#register ⇒ Object 



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# File 'lib/logstash/inputs/twitter.rb', line 56

def register
  require "twitter"

  # monkey patch twitter gem to ignore json parsing error.
  # at the same time, use our own json parser
  # this has been tested with a specific gem version, raise if not the same
  raise("Invalid Twitter gem") unless Twitter::Version.to_s == "5.0.0.rc.1"
  Twitter::Streaming::Response.module_eval do
    def on_body(data)
      @tokenizer.extract(data).each do |line|
        next if line.empty?
        begin
          @block.call(LogStash::Json.load(line, :symbolize_keys => true))
        rescue LogStash::Json::ParserError
          # silently ignore json parsing errors
        end
      end
    end
  end

  @client = Twitter::Streaming::Client.new do |c|
    c.consumer_key = @consumer_key
    c.consumer_secret = @consumer_secret.value
    c.access_token = @oauth_token
    c.access_token_secret = @oauth_token_secret.value
  end
end

#run(queue) ⇒ Object 



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# File 'lib/logstash/inputs/twitter.rb', line 85

def run(queue)
  @logger.info("Starting twitter tracking", :keywords => @keywords)
  begin
    @client.filter(:track => @keywords.join(",")) do |tweet|
      if tweet.is_a?(Twitter::Tweet)
        @logger.debug? && @logger.debug("Got tweet", :user => tweet.user.screen_name, :text => tweet.text)
        if @full_tweet
          event = LogStash::Event.new(LogStash::Util.stringify_symbols(tweet.to_hash))
          event.timestamp = LogStash::Timestamp.new(tweet.created_at)
        else
          event = LogStash::Event.new(
            LogStash::Event::TIMESTAMP => LogStash::Timestamp.new(tweet.created_at),
            "message" => tweet.full_text,
            "user" => tweet.user.screen_name,
            "client" => tweet.source,
            "retweeted" => tweet.retweeted?,
            "source" => "http://twitter.com/#{tweet.user.screen_name}/status/#{tweet.id}"
          )
          event["in-reply-to"] = tweet.in_reply_to_status_id if tweet.reply?
          unless tweet.urls.empty?
            event["urls"] = tweet.urls.map(&:expanded_url).map(&:to_s)
          end
        end

        decorate(event)
        queue << event
      end
    end # client.filter
  rescue LogStash::ShutdownSignal
    return
  rescue Twitter::Error::TooManyRequests => e
    @logger.warn("Twitter too many requests error, sleeping for #{e.rate_limit.reset_in}s")
    sleep(e.rate_limit.reset_in)
    retry
  rescue => e
    @logger.warn("Twitter client error", :message => e.message, :exception => e, :backtrace => e.backtrace)
    retry
  end
end