Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/5473#discussion_r28853207
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/Job.scala ---
@@ -25,15 +25,43 @@ import scala.util.Try
*/
private[streaming]
class Job(val time: Time, func: () => _) {
- var id: String = _
- var result: Try[_] = null
+ private var _id: String = _
+ private var _outputOpId: Int = _
+ private var isSet = false
+ private var _result: Try[_] = null
def run() {
- result = Try(func())
+ _result = Try(func())
}
- def setId(number: Int) {
- id = "streaming job " + time + "." + number
+ def result: Try[_] = {
+ if (_result == null) {
+ throw new IllegalStateException("Cannot access result before job
finishes")
+ }
+ _result
+ }
+
+ def id: String = {
+ if (!isSet) {
+ throw new IllegalStateException("Cannot access id before calling
setId")
+ }
+ _id
+ }
+
+ def outputOpId: Int = {
+ if (!isSet) {
+ throw new IllegalStateException("Cannot access number before calling
setId")
+ }
+ _outputOpId
+ }
+
+ def setOutputOpId(outputOpId: Int) {
+ if (isSet) {
+ throw new IllegalStateException("Cannot call setOutputOpId more than
once")
+ }
+ isSet = true
+ _id = "streaming job " + time + "." + outputOpId
--- End diff --
use string interpolation.
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