示例#1
0
    def _start_data_subscribers(self):
        """
        """
        # Create a pubsub client to create streams.
        pubsub_client = PubsubManagementServiceClient(node=self.container.node)

        # A callback for processing subscribed-to data.
        def consume_data(message, headers):
            log.info('Subscriber received data message: %s.', str(message))
            self._samples_received.append(message)
            if self._no_samples and self._no_samples == len(self._samples_received):
                self._async_data_result.set()
                
        # Create a stream subscriber registrar to create subscribers.
        subscriber_registrar = StreamSubscriberRegistrar(process=self.container,
                                                node=self.container.node)

        # Create streams and subscriptions for each stream named in driver.
        self._stream_config = {}
        self._data_subscribers = []
        for (stream_name, val) in PACKET_CONFIG.iteritems():
            stream_def = ctd_stream_definition(stream_id=None)
            stream_def_id = pubsub_client.create_stream_definition(
                                                    container=stream_def)        
            stream_id = pubsub_client.create_stream(
                        name=stream_name,
                        stream_definition_id=stream_def_id,
                        original=True,
                        encoding='ION R2')
            self._stream_config[stream_name] = stream_id
            
            # Create subscriptions for each stream.
            exchange_name = '%s_queue' % stream_name
            sub = subscriber_registrar.create_subscriber(exchange_name=exchange_name,
                                                         callback=consume_data)
            self._listen(sub)
            self._data_subscribers.append(sub)
            query = StreamQuery(stream_ids=[stream_id])
            sub_id = pubsub_client.create_subscription(\
                                query=query, exchange_name=exchange_name)
            pubsub_client.activate_subscription(sub_id)
示例#2
0
def instrument_test_driver(container):

    org_client = OrgManagementServiceClient(node=container.node)
    id_client = IdentityManagementServiceClient(node=container.node)

    system_actor = id_client.find_actor_identity_by_name(name=CFG.system.system_actor)
    log.info('system actor:' + system_actor._id)

    sa_header_roles = get_role_message_headers(org_client.find_all_roles_by_user(system_actor._id))


    # Names of agent data streams to be configured.
    parsed_stream_name = 'ctd_parsed'
    raw_stream_name = 'ctd_raw'

    # Driver configuration.
    #Simulator

    driver_config = {
        'svr_addr': 'localhost',
        'cmd_port': 5556,
        'evt_port': 5557,
        'dvr_mod': 'ion.agents.instrument.drivers.sbe37.sbe37_driver',
        'dvr_cls': 'SBE37Driver',
        'comms_config': {
            SBE37Channel.CTD: {
                'method':'ethernet',
                'device_addr': CFG.device.sbe37.host,
                'device_port': CFG.device.sbe37.port,
                'server_addr': 'localhost',
                'server_port': 8888
            }
        }
    }

    #Hardware

    _container_client = ContainerAgentClient(node=container.node,
        name=container.name)

# Create a pubsub client to create streams.
    _pubsub_client = PubsubManagementServiceClient(node=container.node)

    # A callback for processing subscribed-to data.
    def consume(message, headers):
        log.info('Subscriber received message: %s', str(message))

    # Create a stream subscriber registrar to create subscribers.
    subscriber_registrar = StreamSubscriberRegistrar(process=container,
        node=container.node)

    subs = []

    # Create streams for each stream named in driver.
    stream_config = {}
    for (stream_name, val) in PACKET_CONFIG.iteritems():
        stream_def = ctd_stream_definition(stream_id=None)
        stream_def_id = _pubsub_client.create_stream_definition(
            container=stream_def)
        stream_id = _pubsub_client.create_stream(
            name=stream_name,
            stream_definition_id=stream_def_id,
            original=True,
            encoding='ION R2', headers={'ion-actor-id': system_actor._id, 'ion-actor-roles': sa_header_roles })
        stream_config[stream_name] = stream_id

        # Create subscriptions for each stream.
        exchange_name = '%s_queue' % stream_name
        sub = subscriber_registrar.create_subscriber(exchange_name=exchange_name, callback=consume)
        sub.start()
        query = StreamQuery(stream_ids=[stream_id])
        sub_id = _pubsub_client.create_subscription(\
            query=query, exchange_name=exchange_name )
        _pubsub_client.activate_subscription(sub_id)
        subs.append(sub)


    # Create agent config.

    agent_resource_id = '123xyz'

    agent_config = {
        'driver_config' : driver_config,
        'stream_config' : stream_config,
        'agent'         : {'resource_id': agent_resource_id}
    }

    # Launch an instrument agent process.
    _ia_name = 'agent007'
    _ia_mod = 'ion.agents.instrument.instrument_agent'
    _ia_class = 'InstrumentAgent'
    _ia_pid = _container_client.spawn_process(name=_ia_name,
        module=_ia_mod, cls=_ia_class,
        config=agent_config)


    log.info('got pid=%s for resource_id=%s' % (str(_ia_pid), str(agent_resource_id)))