Enabled hide and show username/password based on auth_type.

Author: praveen-kanamarlapudi

sparkmagic/sparkmagic/controllerwidget/addendpointwidget.py

@@ -44,6 +44,8 @@ def __init__(self, spark_controller, ipywidget_factory, ipython_display, endpoin
             description='Add endpoint'
         )
 
+        self.auth_type.on_trait_change(self.update_endpoint)
+
         self.children = [self.ipywidget_factory.get_html(value="<br/>", width=widget_width),
                          self.address_widget, self.auth_type, self.user_widget, self.password_widget,
                          self.ipywidget_factory.get_html(value="<br/>", width=widget_width), self.submit_widget]
@@ -59,3 +61,12 @@ def run(self):
         # We need to call the refresh method because drop down in Tab 2 for endpoints wouldn't refresh with the new
         # value otherwise.
         self.refresh_method()
+
+    def update_endpoint(self):
+        if self.auth_type.value == constants.NO_AUTH or self.auth_type.value == constants.AUTH_KERBEROS:
+            self.user_widget.layout.display = 'none'
+            self.password_widget.layout.display = 'none'
+        else:
+            self.user_widget.layout.display = 'flex'
+            self.password_widget.layout.display = 'flex'
+

sparkmagic/sparkmagic/magics/remotesparkmagics.py

@@ -54,8 +54,7 @@ def manage_spark(self, line, local_ns=None):
     @argument("-u", "--url", type=str, default=None, help="URL for Livy endpoint")
     @argument("-a", "--user", type=str, default="", help="Username for HTTP access to Livy endpoint")
     @argument("-p", "--password", type=str, default="", help="Password for HTTP access to Livy endpoint")
-    @argument("-t", "--auth", type=str, default=conf.default_livy_endpoint_auth_type(),
-              help="Auth type for HTTP access to Livy endpoint. [Kerberos, None, Basic Auth]")
+    @argument("-t", "--auth", type=str, help="Auth type for HTTP access to Livy endpoint. [Kerberos, None, Basic Auth]")
     @argument("-l", "--language", type=str, default=None,
               help="Language for Livy session; one of {}".format(', '.join([LANG_PYTHON, LANG_SCALA, LANG_R])))
     @argument("command", type=str, default=[""], nargs="*", help="Commands to execute.")