prabhjyotsingh commented on a change in pull request #3684: ZEPPELIN-4679: Add 
API validation for creating interpreter
URL: https://github.com/apache/zeppelin/pull/3684#discussion_r391448028
 
 

 ##########
 File path: 
zeppelin-zengine/src/main/java/org/apache/zeppelin/interpreter/InterpreterSettingManager.java
 ##########
 @@ -767,9 +769,17 @@ private InterpreterSetting inlineCreateNewSetting(String 
name, String group,
                                                     InterpreterOption option,
                                                     Map<String, 
InterpreterProperty> properties)
       throws IOException {
-    if (name.indexOf(".") >= 0) {
-      throw new IOException("'.' is invalid for InterpreterSetting name.");
+    if (name == null) {
+      throw new IOException("Interpreter name shouldn't be empty.");
     }
+
+    // check if name is valid
+    Pattern pattern = Pattern.compile("^[-_a-zA-Z0-9]+$");
 
 Review comment:
   Sure let me do that.

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