Twitter reader in Rhino Javascript

TweetReader.js

// Dependencies: rhino, growl, growlnotify, a twitter account (put your login info into the config object)

importClass(java.net.Authenticator)
importClass(java.net.PasswordAuthentication)
importClass(java.lang.Thread)

load('http://json.org/json2.js')

var config = {
  email: 'my_username',
  password: 'my_password',
  period: '90' // in seconds
}

function fetchTweets(sinceId) {
  var json = readUrl('http://twitter.com/statuses/friends_timeline.json?since_id='+sinceId)
  return JSON.parse(json)
}

function notify(title, message) {
  runCommand('growlnotify', title, ('-m '+message) )
}

// setup for HTTP authentication
Authenticator.setDefault(new Authenticator({
  'getPasswordAuthentication': function() {
    return new PasswordAuthentication(config.email, config.password.split(''))
  }
}));

var lastTweetId = 1

while (true) {
  try {
    var tweets = fetchTweets(lastTweetId)
    if (tweets.length) { 
      print(tweets.length + ' new tweets')
      lastTweetId = parseInt(tweets[0].id)
      tweets.reverse().forEach(function(tweet) {
        notify(tweet.user.name, tweet.text)
      })
    }
  } catch (e) {
    print(e)
    notify("TweetReader error", "Couldn't read from Twitter")
  }
  Thread.currentThread().sleep(1000 * config.period)
}

Thread.currentThread().sleep(1000 * config.period) should just be written as Thread.sleep(1000 * config.period) since sleep() is a static method