diff --git a/lib/tfw/components/process_managing_event_handler.py b/lib/tfw/components/process_managing_event_handler.py
index 8fd1bea..7b387a5 100644
--- a/lib/tfw/components/process_managing_event_handler.py
+++ b/lib/tfw/components/process_managing_event_handler.py
@@ -2,14 +2,21 @@ from tfw.event_handler_base import EventHandlerBase
 from tfw.components.mixins import SupervisorMixin
 
 
+class ProcessManager(SupervisorMixin):
+    def __init__(self, process_name):
+        self.process = process_name
+        self.commands = {'start': self.start_process,
+                         'stop': self.stop_process,
+                         'restart': self.restart_process}
+
+    def __call__(self, command):
+        self.commands[command]()
+
+
 class ProcessManagingEventHandler(EventHandlerBase, SupervisorMixin):
     def __init__(self, anchor, supervisor_process_name):
         super().__init__(anchor)
-        self.process = supervisor_process_name
-        self.commands = {'start':   self.start_process,
-                         'stop':    self.stop_process,
-                         'restart': self.restart_process}
+        self.processmanager = ProcessManager(supervisor_process_name)
 
     def handle_event(self, anchor, data_json):
-        data = data_json['data']
-        self.commands[data['command']]()
+        self.processmanager(data_json['data']['command'])