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added a twitter user agent to fetch tweets from a specificied user
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Albert Sun
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177
app/models/agents/twitter_user_agent.rb
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177
app/models/agents/twitter_user_agent.rb
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require "twitter"
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module Agents
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class TwitterUserAgent < Agent
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cannot_receive_events!
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description <<-MD
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The TwitterUserAgent follows the timeline of a specified Twitter user.
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You must set up a Twitter app and provide it's `consumer_key`, `consumer_secret`, `oauth_token` and `oauth_token_secret`, (Also shown as "Access token" on the Twitter developer's site.) along with the `username` of the Twitter user to monitor.
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Set `expected_update_period_in_days` to the maximum amount of time that you'd expect to pass between Events being created by this Agent.
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MD
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event_description <<-MD
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Events are the raw JSON provided by the Twitter API. Should look something like:
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{
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:created_at=>"Thu Apr 04 13:27:48 +0000 2013",
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:id=>319803490421596160,
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:id_str=>"319803490421596160",
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:text=>
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"In which @jeresig goes to an art gallery and is \"the JavaScript programmer\". http://t.co/gt3PT1d3G1",
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:source=>
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"<a href=\"http://itunes.apple.com/us/app/twitter/id409789998?mt=12\" rel=\"nofollow\">Twitter for Mac</a>",
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:truncated=>false,
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:in_reply_to_status_id=>nil,
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:in_reply_to_status_id_str=>nil,
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:in_reply_to_user_id=>nil,
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:in_reply_to_user_id_str=>nil,
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:in_reply_to_screen_name=>nil,
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:user=>
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{:id=>2341001,
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:id_str=>"2341001",
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:name=>"Albert Sun",
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:screen_name=>"albertsun",
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:location=>"New York, NY",
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:description=>
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"News apps developer at NYT, formerly WSJ. graduated Penn 2010, geek, journalist, data-viz, nlp, gis, digital economics =)",
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:url=>"http://albertsun.info",
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:entities=>
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{:url=>
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{:urls=>
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[{:url=>"http://albertsun.info",
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:expanded_url=>nil,
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:indices=>[0, 21]}]},
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:description=>{:urls=>[]}},
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:protected=>false,
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:followers_count=>1857,
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:friends_count=>798,
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:listed_count=>115,
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:created_at=>"Mon Mar 26 19:22:05 +0000 2007",
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:favourites_count=>9,
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:utc_offset=>-18000,
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:time_zone=>"Eastern Time (US & Canada)",
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:geo_enabled=>false,
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:verified=>false,
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:statuses_count=>2572,
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:lang=>"en",
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:contributors_enabled=>false,
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:is_translator=>false,
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:profile_background_color=>"1B2A2B",
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:profile_background_image_url=>
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"http://a0.twimg.com/profile_background_images/2802438/twitterbg.jpg",
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:profile_background_image_url_https=>
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"https://si0.twimg.com/profile_background_images/2802438/twitterbg.jpg",
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:profile_background_tile=>false,
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:profile_image_url=>
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"http://a0.twimg.com/profile_images/110500205/profile-square_normal.jpg",
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:profile_image_url_https=>
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"https://si0.twimg.com/profile_images/110500205/profile-square_normal.jpg",
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:profile_link_color=>"0000FF",
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:profile_sidebar_border_color=>"87BC44",
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:profile_sidebar_fill_color=>"E0FF92",
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:profile_text_color=>"000000",
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:profile_use_background_image=>true,
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:default_profile=>false,
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:default_profile_image=>false,
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:following=>false,
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:follow_request_sent=>false,
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:notifications=>false},
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:geo=>nil,
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:coordinates=>nil,
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:place=>nil,
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:contributors=>nil,
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:retweet_count=>0,
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:favorite_count=>0,
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:entities=>
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{:hashtags=>[],
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:urls=>
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[{:url=>"http://t.co/gt3PT1d3G1",
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:expanded_url=>
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"http://www.nytimes.com/2013/04/04/fashion/art-and-techology-a-clash-of-cultures.html?pagewanted=all",
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:display_url=>"nytimes.com/2013/04/04/fas",
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:indices=>[77, 99]}],
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:user_mentions=>
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[{:screen_name=>"jeresig",
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:name=>"John Resig",
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:id=>752673,
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:id_str=>"752673",
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:indices=>[9, 17]}]},
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:favorited=>false,
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:retweeted=>false,
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:possibly_sensitive=>false,
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:lang=>"en"
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}
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MD
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default_schedule "every_1h"
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def validate_options
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unless options[:username].present? && options[:expected_update_period_in_days].present? && options[:consumer_key].present? && options[:consumer_secret].present? && options[:oauth_token].present? && options[:oauth_token_secret].present?
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errors.add(:base, "expected_update_period_in_days, username, consumer_key, consumer_secret, oauth_token and oauth_token_secret are required")
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end
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end
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def working?
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(event = event_created_within(options[:expected_update_period_in_days].to_i.days)) && event.payload.present?
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end
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def default_options
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{
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:username => "tectonic",
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:expected_update_period_in_days => "2",
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:consumer_key => "---",
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:consumer_secret => "---",
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:oauth_token => "---",
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:oauth_token_secret => "---"
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}
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end
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# def process_tweet(filter, status)
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# if options[:generate] == "counts"
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# # Avoid memory pollution
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# me = Agent.find(id)
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# me.memory[:filter_counts] ||= {}
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# me.memory[:filter_counts][filter.to_sym] ||= 0
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# me.memory[:filter_counts][filter.to_sym] += 1
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# me.save!
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# else
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# create_event :payload => status.merge(:filter => filter.to_s)
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# end
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# end
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def check
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Twitter.configure do |config|
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config.consumer_key = options[:consumer_key]
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config.consumer_secret = options[:consumer_secret]
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config.oauth_token = options[:oauth_token]
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config.oauth_token_secret = options[:oauth_token_secret]
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end
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since_id = memory[:since_id] || nil
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max_id = memory[:max_id] || nil
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opts = {:count => 200, :include_rts => true, :exclude_replies => false, :include_entities => true, :contributor_details => true}
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opts.merge! :since_id => since_id unless since_id.nil?
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opts.merge! :max_id => max_id unless max_id.nil?
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tweets = Twitter.user_timeline(options[:username], opts)
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tweets.each do |tweet|
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memory[:since_id] = tweet.id if !memory[:since_id] || (tweet.id > memory[:since_id])
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create_event :payload => tweet.attrs
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end
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save!
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# if memory[:filter_counts] && memory[:filter_counts].length > 0
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# memory[:filter_counts].each do |filter, count|
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# create_event :payload => { :filter => filter.to_s, :count => count, :time => Time.now.to_i }
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# end
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# memory[:filter_counts] = {}
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# save!
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# end
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end
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end
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end
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