[ZEPPELIN-926] Set maxClassfileName to 128

Leemoonsoo · Leemoonsoo · commit afb1214c2eef · 2016-06-03T21:33:03.000-07:00
### What is this PR for? set scala Settings.numClassFileSetting to 128 to prevent "Getting 'File name too long'" error. See https://issues.apache.org/jira/browse/SPARK-4820 ### What type of PR is it? Bug Fix ### Todos * [x] - Programatically set numClassFileSetting to 128 ### What is the Jira issue? https://issues.apache.org/jira/browse/ZEPPELIN-926 https://issues.apache.org/jira/browse/SPARK-4820 ### Questions: * Does the licenses files need update? no * Is there breaking changes for older versions? no * Does this needs documentation? no Author: Lee moon soo <moon@apache.org> Closes #935 from Leemoonsoo/maxClassfileName and squashes the following commits: 596a33a [Lee moon soo] Set maxClassfileName to 128
diff --git a/spark/src/main/java/org/apache/zeppelin/spark/SparkInterpreter.java b/spark/src/main/java/org/apache/zeppelin/spark/SparkInterpreter.java
@@ -70,6 +70,7 @@
 import scala.tools.nsc.Settings;
 import scala.tools.nsc.interpreter.Completion.Candidates;
 import scala.tools.nsc.interpreter.Completion.ScalaCompleter;
+import scala.tools.nsc.settings.MutableSettings;
 import scala.tools.nsc.settings.MutableSettings.BooleanSetting;
 import scala.tools.nsc.settings.MutableSettings.PathSetting;
 
@@ -462,6 +463,12 @@ public void open() {
 
     System.setProperty("scala.repl.name.line", "line" + this.hashCode() + "$");
 
+    // To prevent 'File name too long' error on some file system.
+    MutableSettings.IntSetting numClassFileSetting = settings.maxClassfileName();
+    numClassFileSetting.v_$eq(128);
+    settings.scala$tools$nsc$settings$ScalaSettings$_setter_$maxClassfileName_$eq(
+        numClassFileSetting);
+
     synchronized (sharedInterpreterLock) {
       /* create scala repl */
       if (printREPLOutput()) {
