Will export your twitter followers and following lists

TwitterExport.scala

package twitter

import scala.collection.mutable.ArrayBuffer
import twitter4j._
import twitter4j.conf._
import scala.collection.JavaConverters._	

object TwitterExport extends App {  
  
  // http://twitter4j.org/en/code-examples.html
  
  val cb = new ConfigurationBuilder()       
  
  // goto https://apps.twitter.com/ create your app, then create your oauth tokens
  
  cb.setDebugEnabled(true)
  .setOAuthConsumerKey("**")
  .setOAuthConsumerSecret("**")
  .setOAuthAccessToken("**")
  .setOAuthAccessTokenSecret("**");    
  
	val tf = new TwitterFactory(cb.build())  
	val twitter = tf.getInstance()
	
	def getFollowersIDs()={
	    var lastCursor= -1L	    	    	   
	    val buff=new ArrayBuffer[Long]
	    while (lastCursor!=0){
	     val users=twitter.getFollowersIDs(lastCursor)		     
	     buff++=users.getIDs
	     lastCursor=users.getNextCursor  
	    }	    
	    buff
	}
	
  def getFriendIDs()={
	    var lastCursor= -1L	    	    	   
	    val buff=new ArrayBuffer[Long]
	    while (lastCursor!=0){
	     val users=twitter.getFriendsIDs(lastCursor)		     
	     buff++=users.getIDs
	     lastCursor=users.getNextCursor  
	    }	    
	    buff
	}
  
	def lookupUsers(followerids:Seq[Long])={
	  val grouped=followerids.grouped(100).toList
	  val buff=new ArrayBuffer[User]
	  for {group<-grouped
	       users=twitter.lookupUsers(group:_*)
	       user<-users.asScala
	   } yield user	  
	}
	
	def printOutUsers(users:List[User])=
	  users.zipWithIndex.foreach{case (u,idx)=>println(s"$idx,@${u.getScreenName},${u.getName}")}
	
	val followerids=getFollowersIDs()
	println("Followers===")
	val followers=lookupUsers(followerids)
	printOutUsers(followers)
	
	val friendids=getFriendIDs()
	println("Friends===")
	val friends=lookupUsers(friendids)
	printOutUsers(friends)
}