Refactor for handling xmlrpc exceptiions

src/event_handlers/source_code_event_handler.py

@@ -1,5 +1,6 @@
 from shutil import copy, rmtree, copytree
 from os.path import splitext
+from xmlrpc.client import Fault as SupervisorFault
 
 from util import SupervisorMixin
 from config import LOGIN_APP_DIR
@@ -26,7 +27,7 @@ class SourceCodeEventHandler(EventHandlerBase, SupervisorMixin):
         return data_json
 
     def handle_reset(self, data_json):
-        self.create_initial_state(process_is_running=True)
+        self.create_initial_state()
 
     def read_file(self, data_json):
         with open(self.file, 'r') as ifile:
@@ -44,9 +45,9 @@ class SourceCodeEventHandler(EventHandlerBase, SupervisorMixin):
         self.supervisor.stopProcess(self.process_name)
         self.supervisor.startProcess(self.process_name)
 
-    def create_initial_state(self, process_is_running=False):
-        if process_is_running:
-            self.supervisor.stopProcess(self.process_name)
+    def create_initial_state(self):
+        try: self.supervisor.stopProcess(self.process_name)
+        except SupervisorFault: pass
 
         rmtree(self.working_directory, ignore_errors=True)
         copytree('source_code_server/', self.working_directory)

src/event_handlers/terminado_event_handler.py

@@ -1,4 +1,5 @@
 from shutil import rmtree, copytree
+from xmlrpc.client import Fault as SupervisorFault
 
 from event_handler_base import EventHandlerBase
 from util import SupervisorMixin
@@ -19,3 +20,8 @@ class TerminadoEventHandler(EventHandlerBase, SupervisorMixin):
 
     def handle_event(self, anchor, data_json):
         raise NotImplementedError   # TODO: wat do?
+
+    def handle_reset(self, data_json):
+        try: self.supervisor.stopProcess(self.process_name)
+        except SupervisorFault: pass
+        self.supervisor.startProcess(self.process_name)