Python DataLayer.enk_back_schedule_get_schedule方法代码示例

# 需要导入模块: from enarksh.DataLayer import DataLayer [as 别名]
# 或者: from enarksh.DataLayer.DataLayer import enk_back_schedule_get_schedule [as 别名]
    def __load(self, sch_id, host_resources):
        """
        Loads the schedule from the database.

        :param int sch_id: The ID of the schedule.
        :param dict host_resources: The host resources.
        """
        schedule = DataLayer.enk_back_schedule_get_schedule(sch_id)

        # Fetch all data of the run from the database.
        nodes_data = DataLayer.enk_back_run_get_run_nodes(schedule['run_id'])
        ports_data = DataLayer.enk_back_run_get_ports1(schedule['run_id'])
        node_ports_data = DataLayer.enk_back_run_get_ports2(schedule['run_id'])
        dependants_data = DataLayer.enk_back_run_get_dependants(schedule['srv_id'])
        consumptions_data = DataLayer.enk_back_run_get_consumptions(schedule['run_id'])
        resources_data = DataLayer.enk_back_run_get_resources(schedule['run_id'])

        # Create a lookup table for all child nodes of a node.
        tmp_child_nodes = {}
        for node_data in nodes_data.values():
            if node_data['rnd_id_parent']:
                if node_data['rnd_id_parent'] not in tmp_child_nodes:
                    tmp_child_nodes[node_data['rnd_id_parent']] = []
                tmp_child_nodes[node_data['rnd_id_parent']].append(node_data)

        # Create a lookup table for all direct successor nodes of a node.
        direct_successors = Schedule.__create_successor_lookup_table1(nodes_data,
                                                                      tmp_child_nodes,
                                                                      node_ports_data,
                                                                      ports_data,
                                                                      dependants_data)

        # Create a lookup table for all direct predecessor nodes of a node.
        direct_predecessors = Schedule.__create_predecessor_lookup_table1(direct_successors)

        # Create a lookup table for all (direct and indirect) successor nodes of a node.
        successors = {}
        for rnd_id_predecessor in direct_successors.keys():
            successors[rnd_id_predecessor] = {}
            for rnd_id_successor in direct_successors[rnd_id_predecessor]:
                successors[rnd_id_predecessor][rnd_id_successor] = True
                Schedule.__create_successor_lookup_table3(successors[rnd_id_predecessor],
                                                          direct_successors,
                                                          rnd_id_successor)

        # Create all resources.
        resources = {}
        for node_resource_data in resources_data.values():
            for resource_data in node_resource_data:
                rsc = resource.create_resource(resource_data)
                resources[resource_data['rsc_id']] = rsc

                # Observe resource for state changes.
                rsc.event_state_change.register_listener(Schedule.slot_resource_state_change)

        # Create all consumptions.
        consumptions = {}
        for node_resource_data in consumptions_data.values():
            for consumption_data in node_resource_data:
                consumptions[consumption_data['cns_id']] = consumption.create_consumption(consumption_data,
                                                                                          host_resources,
                                                                                          resources)

        # Create all nodes.
        for node_data in nodes_data.values():
            self.__nodes[node_data['rnd_id']] = create_node(node_data)

        # Initialize all nodes.
        # First initialize all simple nodes. This has the effect that signals via StateChange.notify_observer are
        # send first to (simple) successor nodes and then to parent nodes (otherwise it is possible that the schedule
        # will be set to run status ENK_RST_ID_ERROR while a simple successor node did not yet receive a signal that
        # would put this node in run status ENK_RST_ID_QUEUED.
        for node_data in nodes_data.values():
            node = self.__nodes[node_data['rnd_id']]
            if node.is_simple_node():
                node.initialize(node_data,
                                schedule,
                                resources,
                                resources_data,
                                consumptions,
                                consumptions_data,
                                self.__nodes,
                                tmp_child_nodes,
                                direct_predecessors,
                                direct_successors,
                                successors)

                # Observe node for state changes.
                node.event_state_change.register_listener(self.slot_node_state_change)

        # Second initialize complex nodes.
        for node_data in nodes_data.values():
            node = self.__nodes[node_data['rnd_id']]
            if node.is_complex_node():
                node.initialize(node_data,
                                schedule,
                                resources,
                                resources_data,
                                consumptions,
                                consumptions_data,
#.........这里部分代码省略.........