Add Event Sources:event_sources

- Add source property in Action and EventFilter
- Change TPropContainer contructor to accept keyword arguments and set
  properties that were given
- Change every single TPropContainer subclass constructor to accept
  kwargs and pass them on to super init
- Add a "null" option for TStringProperty
Use Event Sources:
- Make the probe require a source property to install or subscribe
- Have ProbeProxy install and subscribe return a prefixed address
- Make update, uninstall and unsubsribe extract the prefix from the
  address
- Have the TutorialRunner set a source on actions/events before
  installing/subscribing instead of setting current activity on
  ProbeManager
Test Event Sources:
- Change the tests according to the new constructors and behaviors

1 files changed, 4 insertions, 7 deletions

diff --git a/tutorius/engine.py b/tutorius/engine.py
index 198fa11..c0769b5 100644
--- a/tutorius/engine.py
+++ b/tutorius/engine.py
@@ -77,14 +77,9 @@ class TutorialRunner(object):
         #Temp FIX until event/actions have an activity id
         self._activity_id = None
 
-    #Temp FIX until event, actions have an activity id
-    def setCurrentActivity(self):
-        self._pM.currentActivity = self._activity_id
-    
     ###########################################################################
     # Incoming messages
     def start(self):
-        self.setCurrentActivity() #Temp Hack until activity in events/actions
         self.enterState(self._tutorial.INIT)
 
     def stop(self):
@@ -141,6 +136,8 @@ class TutorialRunner(object):
 
         # Send all the event registration
         for (event_name, (event, next_state)) in transitions.items():
+            if hasattr(event, "source") and not event.source:
+                event.source = self._activity_id
             self._pM.subscribe(event,
                                save_args(self._handleEvent, next_state),
                                save_args(self.event_subscribed, event_name),
@@ -153,7 +150,6 @@ class TutorialRunner(object):
     ###########################################################################
     # Helper functions
     def _execute_stop(self):
-        self.setCurrentActivity() #Temp Hack until activity in events/actions
         self._teardownState()
         self._state = None
         self._runner_state = RUNNER_STATE_IDLE
@@ -253,6 +249,8 @@ class TutorialRunner(object):
 
         for (action_name, action) in actions.items():
             LOGGER.debug("TutorialRunner :: Installed action %s"%(action_name))
+            if hasattr(action, "source") and not action.source:
+                action.source = self._activity_id
             self._pM.install(action,
                             save_args(self.action_installed, action_name),
                             save_args(self.install_error, action_name))
@@ -269,7 +267,6 @@ class TutorialRunner(object):
         
         @param state_name The name of the state to enter in
         """
-        self.setCurrentActivity() #Temp Hack until activity in events/actions
         # Set the runner state to actions setup
         self._runner_state = RUNNER_STATE_SETUP_ACTIONS