Allow other twitter authorizations than username/password

streaming/src/main/scala/spark/streaming/StreamingContext.scala

@@ -27,6 +27,7 @@ import org.apache.hadoop.mapreduce.{InputFormat => NewInputFormat}
 import org.apache.hadoop.mapreduce.lib.input.TextInputFormat
 import org.apache.hadoop.fs.Path
 import twitter4j.Status
+import twitter4j.auth.{Authorization, BasicAuthorization}
 
 /**
  * A StreamingContext is the main entry point for Spark Streaming functionality. Besides the basic
@@ -372,8 +373,20 @@ class StreamingContext private (
       password: String,
       filters: Seq[String] = Nil,
       storageLevel: StorageLevel = StorageLevel.MEMORY_AND_DISK_SER_2
+    ): DStream[Status] = twitterStream(new BasicAuthorization(username, password), filters, storageLevel)
+
+  /**
+   * Create a input stream that returns tweets received from Twitter.
+   * @param twitterAuth Twitter4J authentication
+   * @param filters Set of filter strings to get only those tweets that match them
+   * @param storageLevel Storage level to use for storing the received objects
+   */
+  def twitterStream(
+      twitterAuth: Authorization,
+      filters: Seq[String] = Nil,
+      storageLevel: StorageLevel = StorageLevel.MEMORY_AND_DISK_SER_2
     ): DStream[Status] = {
-    val inputStream = new TwitterInputDStream(this, username, password, filters, storageLevel)
+    val inputStream = new TwitterInputDStream(this, twitterAuth, filters, storageLevel)
     registerInputStream(inputStream)
     inputStream
   }

streaming/src/main/scala/spark/streaming/dstream/TwitterInputDStream.scala

@@ -6,6 +6,7 @@ import storage.StorageLevel
 
 import twitter4j._
 import twitter4j.auth.BasicAuthorization
+import twitter4j.auth.Authorization
 
 /* A stream of Twitter statuses, potentially filtered by one or more keywords.
 *
@@ -16,21 +17,19 @@ import twitter4j.auth.BasicAuthorization
 private[streaming]
 class TwitterInputDStream(
     @transient ssc_ : StreamingContext,
-    username: String,
-    password: String,
+    twitterAuth: Authorization,
     filters: Seq[String],
     storageLevel: StorageLevel
   ) extends NetworkInputDStream[Status](ssc_)  {
-
+  
   override def getReceiver(): NetworkReceiver[Status] = {
-    new TwitterReceiver(username, password, filters, storageLevel)
+    new TwitterReceiver(twitterAuth, filters, storageLevel)
   }
 }
 
 private[streaming]
 class TwitterReceiver(
-    username: String,
-    password: String,
+    twitterAuth: Authorization,
     filters: Seq[String],
     storageLevel: StorageLevel
   ) extends NetworkReceiver[Status] {
@@ -40,8 +39,7 @@ class TwitterReceiver(
 
   protected override def onStart() {
     blockGenerator.start()
-    twitterStream = new TwitterStreamFactory()
-      .getInstance(new BasicAuthorization(username, password))
+    twitterStream = new TwitterStreamFactory().getInstance(twitterAuth)
     twitterStream.addListener(new StatusListener {
       def onStatus(status: Status) = {
         blockGenerator += status