Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/1704#discussion_r15726311
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/StreamingContext.scala ---
@@ -85,22 +85,46 @@ class StreamingContext private[streaming] (
master: String,
appName: String,
batchDuration: Duration,
- sparkHome: String = null,
- jars: Seq[String] = Nil,
- environment: Map[String, String] = Map()) = {
+ sparkHome: String,
+ jars: Seq[String],
+ environment: Map[String, String]) = {
this(StreamingContext.createNewSparkContext(master, appName,
sparkHome, jars, environment),
null, batchDuration)
}
+ def this(
+ master: String,
+ appName: String,
+ batchDuration: Duration) =
+ this(master, appName, batchDuration, null, null, Map())
+
+ def this(
+ master: String,
+ appName: String,
+ batchDuration: Duration,
+ sparkHome: String) =
+ this(master, appName, batchDuration, sparkHome, null, Map())
+
+ def this(
+ master: String,
+ appName: String,
+ batchDuration: Duration,
+ sparkHome: String,
+ jars: Seq[String]) =
+ this(master, appName, batchDuration, sparkHome, jars, Map())
+
/**
* Recreate a StreamingContext from a checkpoint file.
* @param path Path to the directory that was specified as the
checkpoint directory
* @param hadoopConf Optional, configuration object if necessary for
reading from
* HDFS compatible filesystems
*/
- def this(path: String, hadoopConf: Configuration = new Configuration) =
+ def this(path: String, hadoopConf: Configuration) =
this(null, CheckpointReader.read(path, new SparkConf(),
hadoopConf).get, null)
+ def this(path: String) =
--- End diff --
this can be pulled onto one line
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