예제 #1
0
    def test_dm_end_2_end(self):
        #--------------------------------------------------------------------------------
        # Set up a stream and have a mock instrument (producer) send data
        #--------------------------------------------------------------------------------
        self.event.clear()

        # Get a precompiled parameter dictionary with basic ctd fields
        pdict_id = self.dataset_management.read_parameter_dictionary_by_name('ctd_parsed_param_dict',id_only=True)
        context_ids = self.dataset_management.read_parameter_contexts(pdict_id, id_only=True)

        # Add a field that supports binary data input.
        bin_context = ParameterContext('binary',  param_type=ArrayType())
        context_ids.append(self.dataset_management.create_parameter_context('binary', bin_context.dump()))
        # Add another field that supports dictionary elements.
        rec_context = ParameterContext('records', param_type=RecordType())
        context_ids.append(self.dataset_management.create_parameter_context('records', rec_context.dump()))

        pdict_id = self.dataset_management.create_parameter_dictionary('replay_pdict', parameter_context_ids=context_ids, temporal_context='time')
        
        stream_definition = self.pubsub_management.create_stream_definition('ctd data', parameter_dictionary_id=pdict_id)


        stream_id, route = self.pubsub_management.create_stream('producer', exchange_point=self.exchange_point_name, stream_definition_id=stream_definition)

        #--------------------------------------------------------------------------------
        # Start persisting the data on the stream 
        # - Get the ingestion configuration from the resource registry
        # - Create the dataset
        # - call persist_data_stream to setup the subscription for the ingestion workers
        #   on the stream that you specify which causes the data to be persisted
        #--------------------------------------------------------------------------------

        ingest_config_id = self.get_ingestion_config()
        dataset_id = self.create_dataset(pdict_id)
        self.ingestion_management.persist_data_stream(stream_id=stream_id, ingestion_configuration_id=ingest_config_id, dataset_id=dataset_id)
        self.addCleanup(self.stop_ingestion, stream_id)

        #--------------------------------------------------------------------------------
        # Now the granules are ingesting and persisted
        #--------------------------------------------------------------------------------

        self.launch_producer(stream_id)
        self.wait_until_we_have_enough_granules(dataset_id,40)
        
        #--------------------------------------------------------------------------------
        # Now get the data in one chunk using an RPC Call to start_retreive
        #--------------------------------------------------------------------------------
        
        replay_data = self.data_retriever.retrieve(dataset_id)
        self.assertIsInstance(replay_data, Granule)
        rdt = RecordDictionaryTool.load_from_granule(replay_data)
        self.assertTrue((rdt['time'][:10] == np.arange(10)).all(),'%s' % rdt['time'][:])
        self.assertTrue((rdt['binary'][:10] == np.array(['hi']*10, dtype='object')).all())

        
        #--------------------------------------------------------------------------------
        # Now to try the streamed approach
        #--------------------------------------------------------------------------------
        replay_stream_id, replay_route = self.pubsub_management.create_stream('replay_out', exchange_point=self.exchange_point_name, stream_definition_id=stream_definition)
        self.replay_id, process_id =  self.data_retriever.define_replay(dataset_id=dataset_id, stream_id=replay_stream_id)
        log.info('Process ID: %s', process_id)

        replay_client = ReplayClient(process_id)

    
        #--------------------------------------------------------------------------------
        # Create the listening endpoint for the the retriever to talk to 
        #--------------------------------------------------------------------------------
        sub_id = self.pubsub_management.create_subscription(self.exchange_space_name,stream_ids=[replay_stream_id])
        self.addCleanup(self.pubsub_management.delete_subscription, sub_id)
        self.pubsub_management.activate_subscription(sub_id)
        self.addCleanup(self.pubsub_management.deactivate_subscription, sub_id)
        subscriber = StandaloneStreamSubscriber(self.exchange_space_name, self.validate_granule_subscription)
        subscriber.start()
        self.addCleanup(subscriber.stop)

        self.data_retriever.start_replay_agent(self.replay_id)

        self.assertTrue(replay_client.await_agent_ready(5), 'The process never launched')
        replay_client.start_replay()
        
        self.assertTrue(self.event.wait(10))

        self.data_retriever.cancel_replay_agent(self.replay_id)


        #--------------------------------------------------------------------------------
        # Test the slicing capabilities
        #--------------------------------------------------------------------------------

        granule = self.data_retriever.retrieve(dataset_id=dataset_id, query={'tdoa':slice(0,5)})
        rdt = RecordDictionaryTool.load_from_granule(granule)
        b = rdt['time'] == np.arange(5)
        self.assertTrue(b.all() if not isinstance(b,bool) else b)