Пример #1
0
    def test(self):
        messaging_system = QueueMessagingSystem()
        messager = Messager()
        numbers_endpoint = messager.get_endpoint(messaging_system, "numbers",
                                                 StringMessage)
        parameters = {'name': 'number_service', 'endpoint': numbers_endpoint}

        configuration_endpoint = messager.get_endpoint(messaging_system,
                                                       "configuration",
                                                       ConfigurationMessage)
        configuration_adapter = ConfigurationAdapter(NumberGeneratorService,
                                                     parameters,
                                                     configuration_endpoint)

        number_generator_service_runner = ServiceRunner(
            configuration_adapter, messager)

        number_generator_service_runner.start()
        time.sleep(10)

        configuration_message = ConfigurationMessage({})
        messager.publish(configuration_endpoint, configuration_message)

        time.sleep(10)

        number_generator_service_runner.terminate()
        number_generator_service_runner.wait()
Пример #2
0
    def test(self):
        messaging_system = QueueMessagingSystem()
        messager = Messager()
        metrics_endpoint = messager.get_endpoint(messaging_system, "metrics",
                                                 Metrics)
        first_endpoint = messager.get_endpoint(messaging_system, "first",
                                               StringMessage)
        second_endpoint = messager.get_endpoint(messaging_system, "second",
                                                StringMessage)
        concatenation_endpoint = messager.get_endpoint(messaging_system,
                                                       "concatenation",
                                                       StringMessage)
        control_endpoint = messager.get_endpoint(messaging_system, "control",
                                                 StringMessage)

        parameters = {
            "name": "string_concatenator_service",
            "first_endpoint": first_endpoint,
            "second_endpoint": second_endpoint,
            "concatenation_endpoint": concatenation_endpoint,
            "control_endpoint": control_endpoint
        }

        configuration_endpoint = messager.get_endpoint(messaging_system,
                                                       "configuration",
                                                       ConfigurationMessage)
        configuration_adapter = ConfigurationAdapter(StringConcatenatorService,
                                                     parameters,
                                                     configuration_endpoint)
        monitor_adapter = MonitorAdapter(configuration_adapter,
                                         metrics_endpoint)
        service_runner = ServiceRunner(monitor_adapter, messager)

        service_runner.start()
        time.sleep(5)

        logging.info("Publishing ConfigurationMessage")
        configuration_message = ConfigurationMessage({})
        messager.publish(configuration_endpoint, configuration_message)

        time.sleep(5)

        logging.info("Publishing 'Start' control message")
        messager.publish(control_endpoint, StringMessage("Start"))

        time.sleep(5)

        logging.info("Publishing 'Stop' control message")
        messager.publish(control_endpoint, StringMessage("Stop"))

        time.sleep(5)

        service_runner.terminate()
        service_runner.wait()
Пример #3
0
    def get_service_runner(self, service_class, service_parameters, configuration_stream=None, metrics_stream=None):
        if configuration_stream is None:
            service = service_class(service_parameters, None)
        else:
            service = ConfigurationAdapter(service_class, service_parameters, configuration_stream.get_read_endpoint())

        if metrics_stream is not None:
            service = MonitorAdapter(service, metrics_stream.get_write_endpoint())

        return ServiceRunner(service, self.messager)
Пример #4
0
    def _run_monitor(self):
        messaging_system = ZMQMessagingSystem("localhost", self.registry_port,
                                              9005)
        messager = Messager()
        letter1_metrics_stream = messager.get_stream(messaging_system,
                                                     "letter1_metrics",
                                                     Metrics)
        letter2_metrics_stream = messager.get_stream(messaging_system,
                                                     "letter2_metrics",
                                                     Metrics)
        concatenator_metrics_stream = messager.get_stream(
            messaging_system, "concatenator_metrics", Metrics)
        writer_metrics_stream = messager.get_stream(messaging_system,
                                                    "writer_metrics", Metrics)
        monitor_service = GenericMonitorService("generic_monitor_service", [
            letter1_metrics_stream.get_read_endpoint(),
            letter2_metrics_stream.get_read_endpoint(),
            concatenator_metrics_stream.get_read_endpoint(),
            writer_metrics_stream.get_read_endpoint()
        ])
        monitor_service_runner = ServiceRunner(monitor_service, messager)
        monitor_service_runner.start()

        self.monitor_stopped = False
        while not self.monitor_stopped:
            time.sleep(1)
        monitor_service_runner.terminate()
        logging.debug("THREAD _run_monitor terminates.")
Пример #5
0
    def test(self):

        messaging_system = QueueMessagingSystem()
        messager = Messager()
        string_endpoint = messager.get_endpoint(messaging_system, "string",
                                                StringMessage)
        control_endpoint = messager.get_endpoint(messaging_system, "control",
                                                 StringMessage)

        parameters = {
            "name": "string_writer_service",
            "string_endpoint": string_endpoint,
            "control_endpoint": control_endpoint
        }
        configuration_endpoint = messager.get_endpoint(messaging_system,
                                                       "configuration",
                                                       ConfigurationMessage)
        configuration_adapter = ConfigurationAdapter(StringWriterService,
                                                     parameters,
                                                     configuration_endpoint)
        service_runner = ServiceRunner(configuration_adapter, messager)

        service_runner.start()

        time.sleep(5)

        logging.info("Publishing ConfigurationMessage")
        configuration_message = ConfigurationMessage(
            {"string_writer_service.output_path": "output.txt"})
        messager.publish(configuration_endpoint, configuration_message)

        time.sleep(5)

        logging.info("Publishing 'Start' control message")
        messager.publish(control_endpoint, StringMessage("Start"))

        time.sleep(10)

        logging.info("Publishing 'Stop' control message")
        messager.publish(control_endpoint, StringMessage("Stop"))

        time.sleep(5)

        service_runner.terminate()
        service_runner.wait()
Пример #6
0
    def test(self):
        messaging_system = QueueMessagingSystem()
        messager = Messager()
        datagram_endpoint = messager.get_endpoint(messaging_system, "datagram",
                                                  VisibilityDatagram)
        string_endpoint = messager.get_endpoint(messaging_system, "string",
                                                StringMessage)
        control_endpoint = messager.get_endpoint(messaging_system, "control",
                                                 StringMessage)

        parameters = {
            "name": "to_string_service",
            "input_endpoint": datagram_endpoint,
            "output_endpoint": string_endpoint,
            "control_endpoint": control_endpoint
        }
        configuration_endpoint = messager.get_endpoint(messaging_system,
                                                       "configuration",
                                                       ConfigurationMessage)
        configuration_adapter = ConfigurationAdapter(ToStringService,
                                                     parameters,
                                                     configuration_endpoint)
        service_runner = ServiceRunner(configuration_adapter, messager)

        service_runner.start()
        time.sleep(5)

        logging.info("Publishing ConfigurationMessage")
        configuration_message = ConfigurationMessage({})
        messager.publish(configuration_endpoint, configuration_message)

        time.sleep(5)

        logging.info("Publishing 'Start' control message")
        messager.publish(control_endpoint, StringMessage("Start"))

        time.sleep(5)

        logging.info("Publishing 'Stop' control message")
        messager.publish(control_endpoint, StringMessage("Stop"))

        time.sleep(5)

        service_runner.terminate()
        service_runner.wait()
    def test(self):
        messaging_system = QueueMessagingSystem()
        messager = Messager()

        service_runner_factory = ServiceRunnerFactory(messager)

        configuration_stream = messager.get_stream(messaging_system,
                                                   "configuration",
                                                   ConfigurationMessage)
        control_stream = messager.get_stream(messaging_system, "control",
                                             StringMessage)

        metadata_stream = messager.get_stream(messaging_system, "metadata",
                                              TOSMetadata)
        metadata_metrics_stream = messager.get_stream(messaging_system,
                                                      "metadatametrics",
                                                      Metrics)

        ice_metadata_source_service_runner = service_runner_factory.get_service_runner(
            IceMetadataSourceService, {
                "name": "ice_metadata_source_service",
                "metadata_endpoint": metadata_stream.get_write_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            metrics_stream=metadata_metrics_stream,
            configuration_stream=configuration_stream)

        datagram_stream = messager.get_stream(messaging_system, "datagram",
                                              VisibilityDatagram)
        datagram_metrics_stream = messager.get_stream(messaging_system,
                                                      "datagrammetrics",
                                                      Metrics)
        visibility_datagram_source_service_runner = service_runner_factory.get_service_runner(
            VisibilityDatagramSourceService, {
                "name":
                "visibility_datagram_source_service",
                "visibility_datagram_endpoint":
                datagram_stream.get_write_endpoint(),
                "control_endpoint":
                control_stream.get_read_endpoint()
            },
            metrics_stream=datagram_metrics_stream,
            configuration_stream=configuration_stream)

        # set up the align service
        chunk_stream = messager.get_stream(messaging_system, "chunk",
                                           VisibilityChunk)
        align_metrics_stream = messager.get_stream(messaging_system,
                                                   "alignmetrics", Metrics)
        align_service_runner = service_runner_factory.get_service_runner(
            AlignService, {
                "name": "align_service",
                "datagram_endpoint": datagram_stream.get_read_endpoint(),
                "metadata_endpoint": metadata_stream.get_read_endpoint(),
                "chunk_endpoint": chunk_stream.get_write_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            metrics_stream=align_metrics_stream,
            configuration_stream=configuration_stream)

        # set up the uvwcalculation service
        uvw_chunk_stream = messager.get_stream(messaging_system, "uvwchunk",
                                               UVWChunk)
        uvw_calculation_metrics_stream = messager.get_stream(
            messaging_system, "uvwcalcmetrics", Metrics)
        uvw_calculation_service_runner = service_runner_factory.get_service_runner(
            UVWCalculationService, {
                "name": "uvw_calculation_service",
                "observatory_name": "ASKAP",
                "visibility_chunk_endpoint": chunk_stream.get_read_endpoint(),
                "metadata_endpoint": metadata_stream.get_read_endpoint(),
                "uvw_chunk_endpoint": uvw_chunk_stream.get_write_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            metrics_stream=uvw_calculation_metrics_stream,
            configuration_stream=configuration_stream)

        uvw_chunk_string_stream = messager.get_stream(messaging_system,
                                                      "chunkstring",
                                                      StringMessage)
        to_string_metrics_stream = messager.get_stream(messaging_system,
                                                       "to_stringmetrics",
                                                       Metrics)
        to_string_service_runner = service_runner_factory.get_service_runner(
            ToStringService, {
                "name": "to_string_service",
                "input_endpoint": uvw_chunk_stream.get_read_endpoint(),
                "output_endpoint":
                uvw_chunk_string_stream.get_write_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            metrics_stream=to_string_metrics_stream,
            configuration_stream=configuration_stream)

        string_writer_metrics_stream = messager.get_stream(
            messaging_system, "stringwritermetrics", Metrics)
        string_writer_service_runner = service_runner_factory.get_service_runner(
            StringWriterService, {
                "name": "string_writer_service",
                "string_endpoint": uvw_chunk_string_stream.get_read_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            metrics_stream=string_writer_metrics_stream,
            configuration_stream=configuration_stream)

        monitor_service = GenericMonitorService("generic_monitor_service", [
            datagram_metrics_stream.get_read_endpoint(),
            metadata_metrics_stream.get_read_endpoint(),
            align_metrics_stream.get_read_endpoint(),
            uvw_calculation_metrics_stream.get_read_endpoint(),
            to_string_metrics_stream.get_read_endpoint(),
            string_writer_metrics_stream.get_read_endpoint()
        ])
        monitor_service_runner = ServiceRunner(monitor_service, messager)

        configuration_control_stream = messager.get_stream(
            messaging_system, "configurationcontrol", StringMessage)
        configuration_service = HardConfigurationService(
            "configuration_service",
            configuration_control_stream.get_read_endpoint(),
            configuration_stream.get_write_endpoint())
        configuration_service_runner = ServiceRunner(configuration_service,
                                                     messager)

        # start Ice
        logging.info("Starting Ice")
        ice_runner = IceRunner("testbed_data")
        ice_runner.start()

        logging.info("Starting services")
        configuration_service_runner.start()
        monitor_service_runner.start()
        visibility_datagram_source_service_runner.start()
        ice_metadata_source_service_runner.start()
        align_service_runner.start()
        uvw_calculation_service_runner.start()
        to_string_service_runner.start()
        string_writer_service_runner.start()

        logging.info("Publishing configuration")
        mainline_configuration_control_endpoint = configuration_control_stream.get_write_endpoint(
        )

        logging.info("Issuing configuration")
        messager.publish(mainline_configuration_control_endpoint,
                         StringMessage("Start"))

        time.sleep(10)

        logging.info("Starting processing")
        mainline_control_endpoint = control_stream.get_write_endpoint()
        messager.publish(mainline_control_endpoint, StringMessage("Start"))

        # start playback
        logging.info("Starting playback")
        playback = Playback("testbed_data")
        playback.playback("data/ade1card.ms")
        playback.wait()

        time.sleep(10)

        messager.publish(mainline_control_endpoint, StringMessage("Stop"))

        time.sleep(10)

        ice_metadata_source_service_runner.terminate()
        visibility_datagram_source_service_runner.terminate()
        align_service_runner.terminate()
        uvw_calculation_service_runner.terminate()
        to_string_service_runner.terminate()
        string_writer_service_runner.terminate()
        monitor_service_runner.terminate()
        configuration_service_runner.terminate()

        # stop Ice
        logging.info("stopping Ice")
        ice_runner.stop()
Пример #8
0
    def test(self):
        messaging_system = QueueMessagingSystem()
        messager = Messager()

        configuration_stream = messager.get_stream(messaging_system,
                                                   "configuration",
                                                   ConfigurationMessage)
        control_stream = messager.get_stream(messaging_system, "control",
                                             StringMessage)

        service_runner_factory = ServiceRunnerFactory(messager)

        letter1_stream = messager.get_stream(messaging_system, "letter1",
                                             StringMessage)
        letter1_metrics_stream = messager.get_stream(messaging_system,
                                                     "letter1_metrics",
                                                     Metrics)
        letter1_generator_service_runner = service_runner_factory.get_service_runner(
            LetterGeneratorService, {
                "name": "letter1_generator_service",
                "endpoint": letter1_stream.get_write_endpoint()
            },
            configuration_stream=configuration_stream,
            metrics_stream=letter1_metrics_stream)

        letter2_stream = messager.get_stream(messaging_system, "letter2",
                                             StringMessage)
        letter2_metrics_stream = messager.get_stream(messaging_system,
                                                     "letter2_metrics",
                                                     Metrics)
        letter2_generator_service_runner = service_runner_factory.get_service_runner(
            LetterGeneratorService, {
                "name": "letter2_generator_service",
                "endpoint": letter2_stream.get_write_endpoint()
            },
            configuration_stream=configuration_stream,
            metrics_stream=letter2_metrics_stream)

        concatenation_stream = messager.get_stream(messaging_system,
                                                   "concatenation",
                                                   StringMessage)
        concatenator_metrics_stream = messager.get_stream(
            messaging_system, "concatenator_metrics", Metrics)
        string_concatenator_service_runner = service_runner_factory.get_service_runner(
            StringConcatenatorService, {
                "name": "string_concatenator_service",
                "first_endpoint": letter1_stream.get_read_endpoint(),
                "second_endpoint": letter2_stream.get_read_endpoint(),
                "concatenation_endpoint":
                concatenation_stream.get_write_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            configuration_stream=configuration_stream,
            metrics_stream=concatenator_metrics_stream)

        writer_metrics_stream = messager.get_stream(messaging_system,
                                                    "writer_metrics", Metrics)
        string_writer_service_runner = service_runner_factory.get_service_runner(
            StringWriterService, {
                "name": "string_writer_service",
                "string_endpoint": concatenation_stream.get_read_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            configuration_stream=configuration_stream,
            metrics_stream=writer_metrics_stream)

        monitor_service = GenericMonitorService("generic_monitor_service", [
            letter1_metrics_stream.get_read_endpoint(),
            letter2_metrics_stream.get_read_endpoint(),
            concatenator_metrics_stream.get_read_endpoint(),
            writer_metrics_stream.get_read_endpoint()
        ])
        monitor_service_runner = ServiceRunner(monitor_service, messager)

        # start them, wait ten seconds, stop them
        logging.info("starting services")
        monitor_service_runner.start()
        string_writer_service_runner.start()
        string_concatenator_service_runner.start()
        letter1_generator_service_runner.start()
        letter2_generator_service_runner.start()

        time.sleep(5)

        logging.info("Publishing ConfigurationMessage")
        mainline_configuration_endpoint = configuration_stream.get_write_endpoint(
        )
        configuration_message = ConfigurationMessage({
            "letter1_generator_service.upper":
            True,
            "string_writer_service.output_path":
            "output.txt"
        })
        messager.publish(mainline_configuration_endpoint,
                         configuration_message)

        time.sleep(5)

        mainline_control_endpoint = control_stream.get_write_endpoint()

        logging.info("Publishing 'Start' control message")
        messager.publish(mainline_control_endpoint, StringMessage("Start"))

        time.sleep(5)

        logging.info("Publishing 'Stop' control message")
        messager.publish(mainline_control_endpoint, StringMessage("Stop"))

        time.sleep(5)

        logging.info("Stopping services")
        letter1_generator_service_runner.terminate()
        letter2_generator_service_runner.terminate()
        string_concatenator_service_runner.terminate()
        string_writer_service_runner.terminate()
        monitor_service_runner.terminate()
Пример #9
0
    def test(self):
        messaging_system = QueueMessagingSystem()
        messager = Messager()

        service_runner_factory = ServiceRunnerFactory(messager)

        configuration_stream = messager.get_stream(messaging_system,
                                                   "configuration",
                                                   ConfigurationMessage)
        control_stream = messager.get_stream(messaging_system, "control",
                                             StringMessage)

        metadata_stream = messager.get_stream(messaging_system, "metadata",
                                              TOSMetadata)
        metadata_metrics_stream = messager.get_stream(messaging_system,
                                                      "metadatametrics",
                                                      Metrics)

        ice_metadata_source_service_runner = service_runner_factory.get_service_runner(
            IceMetadataSourceService, {
                "name": "ice_metadata_source_service",
                "metadata_endpoint": metadata_stream.get_write_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            metrics_stream=metadata_metrics_stream,
            configuration_stream=configuration_stream)

        datagram_stream = messager.get_stream(messaging_system, "datagram",
                                              VisibilityDatagram)
        datagram_metrics_stream = messager.get_stream(messaging_system,
                                                      "datagrammetrics",
                                                      Metrics)
        visibility_datagram_source_service_runner = service_runner_factory.get_service_runner(
            VisibilityDatagramSourceService, {
                "name":
                "visibility_datagram_source_service",
                "visibility_datagram_endpoint":
                datagram_stream.get_write_endpoint(),
                "control_endpoint":
                control_stream.get_read_endpoint()
            },
            metrics_stream=datagram_metrics_stream,
            configuration_stream=configuration_stream)

        # set up the align service
        chunk_stream = messager.get_stream(messaging_system, "chunk",
                                           VisibilityChunk)
        align_metrics_stream = messager.get_stream(messaging_system,
                                                   "alignmetrics", Metrics)
        align_service_runner = service_runner_factory.get_service_runner(
            AlignService, {
                "name": "align_service",
                "datagram_endpoint": datagram_stream.get_read_endpoint(),
                "metadata_endpoint": metadata_stream.get_read_endpoint(),
                "chunk_endpoint": chunk_stream.get_write_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            metrics_stream=align_metrics_stream,
            configuration_stream=configuration_stream)

        chunk_string_stream = messager.get_stream(messaging_system,
                                                  "chunkstring", StringMessage)
        to_string_metrics_stream = messager.get_stream(messaging_system,
                                                       "to_stringmetrics",
                                                       Metrics)
        to_string_service_runner = service_runner_factory.get_service_runner(
            ToStringService, {
                "name": "to_string_service",
                "input_endpoint": chunk_stream.get_read_endpoint(),
                "output_endpoint": chunk_string_stream.get_write_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            metrics_stream=to_string_metrics_stream,
            configuration_stream=configuration_stream)

        string_writer_metrics_stream = messager.get_stream(
            messaging_system, "stringwritermetrics", Metrics)
        string_writer_service_runner = service_runner_factory.get_service_runner(
            StringWriterService, {
                "name": "string_writer_service",
                "string_endpoint": chunk_string_stream.get_read_endpoint(),
                "control_endpoint": control_stream.get_read_endpoint()
            },
            metrics_stream=string_writer_metrics_stream,
            configuration_stream=configuration_stream)

        monitor_service = GenericMonitorService("generic_monitor_service", [
            datagram_metrics_stream.get_read_endpoint(),
            metadata_metrics_stream.get_read_endpoint(),
            align_metrics_stream.get_read_endpoint(),
            to_string_metrics_stream.get_read_endpoint(),
            string_writer_metrics_stream.get_read_endpoint()
        ])
        monitor_service_runner = ServiceRunner(monitor_service, messager)

        # start Ice
        logging.info("Starting Ice")
        ice_runner = IceRunner("testbed_data")
        ice_runner.start()

        logging.info("Starting services")
        monitor_service_runner.start()
        visibility_datagram_source_service_runner.start()
        ice_metadata_source_service_runner.start()
        align_service_runner.start()
        to_string_service_runner.start()
        string_writer_service_runner.start()

        logging.info("Publishing configuration")
        mainline_configuration_endpoint = configuration_stream.get_write_endpoint(
        )

        antennas = {
            "ant2": {
                "name": "ak02",
                "itrf": (-2556109.976515, 5097388.699862, -2848440.12097248)
            },
            "ant4": {
                "name": "ak04",
                "itrf": (-2556087.396082, 5097423.589662, -2848396.867933)
            },
            "ant5": {
                "name": "ak05",
                "itrf": (-2556028.607336, 5097451.468188, -2848399.83113161)
            },
            "ant10": {
                "name": "ak10",
                "itrf": (-2556059.228687, 5097560.766055, -2848178.119367)
            },
            "ant12": {
                "name": "ak12",
                "itrf": (-2556496.237175, 5097333.724901, -2848187.33832738)
            },
            # other to get 12-antennas
            "ant7": {
                "name": "ak07",
                "itrf": (-2556282.880670, 5097252.290820, -2848527.104272)
            },
            "ant11": {
                "name": "ak11",
                "itrf": (-2556397.233607, 5097421.429903, -2848124.497319)
            },
            # old BETA antennas
            "ant1": {
                "name": "ak01",
                "itrf": (-2556084.669, 5097398.337, -2848424.133)
            },
            "ant15": {
                "name": "ak15",
                "itrf": (-2555389.850372, 5097664.627578, -2848561.95991566)
            },
            "ant3": {
                "name": "ak03",
                "itrf": (-2556118.109261, 5097384.719695, -2848417.19642608)
            },
            "ant6": {
                "name": "ak06",
                "itrf": (-2556227.878593, 5097380.442223, -2848323.44598377)
            },
            "ant8": {
                "name": "ak08",
                "itrf": (-2556002.509816, 5097320.293832, -2848637.482106)
            },
            "ant9": {
                "name": "ak09",
                "itrf": (-2555888.891875, 5097552.280516, -2848324.679547)
            }
        }

        configuration = {
            "antennas": antennas,
            "baseline_map": {
                "name": "standard",
                "antennaidx": ["ak02", "ak04", "ak05", "ak12"],
                "antennaindices": [1, 3, 4, 11]
            },
            "metadata_source": {
                "host": "localhost",
                "port": "4061",
                "topic_manager": "IceStorm/[email protected]",
                "topic": "metadata",
                "adapter": "IngestPipeline"
            },
            "datagram_source": {
                "host": "localhost",
                "port": "3000"
            },
            "correlation_modes": {
                "standard": {
                    "channel_width": "18.518518",
                    "interval": "5000000",
                    "number_of_channels": "216",
                    "stokes": ["XX", "XY", "YX", "YY"]
                }
            },
            "maximum_number_of_beams": "36",
            "string_writer_service.output_path": "output.txt"
        }

        configuration_message = ConfigurationMessage(configuration)
        messager.publish(mainline_configuration_endpoint,
                         configuration_message)

        logging.info("Starting processing")
        mainline_control_endpoint = control_stream.get_write_endpoint()
        messager.publish(mainline_control_endpoint, StringMessage("Start"))

        # start playback
        logging.info("Starting playback")
        playback = Playback("testbed_data")
        playback.playback("data/ade1card.ms")
        playback.wait()

        time.sleep(10)

        messager.publish(mainline_control_endpoint, StringMessage("Stop"))

        time.sleep(10)

        ice_metadata_source_service_runner.terminate()
        visibility_datagram_source_service_runner.terminate()
        align_service_runner.terminate()
        to_string_service_runner.terminate()
        string_writer_service_runner.terminate()
        monitor_service_runner.terminate()

        # trying to force garbage collection
        ice_metadata_source_service_runner = None
        visibility_datagram_source_service_runner = None
        align_service_runner = None
        to_string_service_runner = None
        string_writer_service_runner = None
        monitor_service_runner = None
        playback = None
        messaging_system = None
        messager = None

        # stop Ice
        logging.info("stopping Ice")
        ice_runner.stop()