heron/instance/src/python/instance/st_heron_instance.py
def handle_assignment_msg(self, pplan):
    """Called when new NewInstanceAssignmentMessage arrives

    Tells this instance to become either spout/bolt.

    :param pplan: PhysicalPlan proto
    """

    new_helper = PhysicalPlanHelper(pplan, self.instance.instance_id,
                                    self.topo_pex_file_abs_path)
    if self.my_pplan_helper is not None and \
      (self.my_pplan_helper.my_component_name != new_helper.my_component_name or
       self.my_pplan_helper.my_task_id != new_helper.my_task_id):
      raise RuntimeError("Our Assignment has changed. We will die to pick it.")

    new_helper.set_topology_context(self.metrics_collector)

    if self.my_pplan_helper is None:
      Log.info("Received a new Physical Plan")
      Log.info("Push the new pplan_helper to Heron Instance")
      self._handle_assignment_msg(new_helper)
    else:
      Log.info("Received a new Physical Plan with the same assignment -- State Change")
      Log.info("Old state: %s, new state: %s.",
               self.my_pplan_helper.get_topology_state(), new_helper.get_topology_state())
      self._handle_state_change_msg(new_helper)
def handle_assignment_msg(self, pplan):
    """Called when new NewInstanceAssignmentMessage arrives

    Tells this instance to become either spout/bolt.

    :param pplan: PhysicalPlan proto
    """

    new_helper = PhysicalPlanHelper(pplan, self.instance.instance_id,
                                    self.topo_pex_file_abs_path)
    if self.my_pplan_helper is not None and \
      (self.my_pplan_helper.my_component_name != new_helper.my_component_name or
       self.my_pplan_helper.my_task_id != new_helper.my_task_id):
      raise RuntimeError("Our Assignment has changed. We will die to pick it.")

    new_helper.set_topology_context(self.metrics_collector)

    if self.my_pplan_helper is None:
      Log.info("Received a new Physical Plan")
      Log.info("Push the new pplan_helper to Heron Instance")
      self._handle_assignment_msg(new_helper)
    else:
      Log.info("Received a new Physical Plan with the same assignment -- State Change")
      Log.info("Old state: %s, new state: %s.",
               self.my_pplan_helper.get_topology_state(), new_helper.get_topology_state())
      self._handle_state_change_msg(new_helper)
def handle_assignment_msg ( self , pplan ) : new_helper = PhysicalPlanHelper ( pplan , self . instance . instance_id , self . topo_pex_file_abs_path ) if self . my_pplan_helper is not None and ( self . my_pplan_helper . my_component_name != new_helper . my_component_name or self . my_pplan_helper . my_task_id != new_helper . my_task_id ) : raise RuntimeError ( "Our Assignment has changed. We will die to pick it." ) new_helper . set_topology_context ( self . metrics_collector ) if self . my_pplan_helper is None : Log . info ( "Received a new Physical Plan" ) Log . info ( "Push the new pplan_helper to Heron Instance" ) self . _handle_assignment_msg ( new_helper ) else : Log . info ( "Received a new Physical Plan with the same assignment -- State Change" ) Log . info ( "Old state: %s, new state: %s." , self . my_pplan_helper . get_topology_state ( ) , new_helper . get_topology_state ( ) ) self . _handle_state_change_msg ( new_helper )
Called when new NewInstanceAssignmentMessage arrives

    Tells this instance to become either spout/bolt.

    :param pplan: PhysicalPlan proto
Called when new NewInstanceAssignmentMessage arrives