Examples with SystemStream org.apache.samza.system.SystemStream used on opensource projects

Example 61 with SystemStream

use of org.apache.samza.system.SystemStream in project samza by apache.

the class TestRunner method initializeInMemoryInputStream.

/**
 * Creates an in memory stream with {@link InMemorySystemFactory} and feeds its partition with stream of messages
 * @param partitionData key of the map represents partitionId and value represents messages in the partition
 * @param descriptor describes a stream to initialize with the in memory system
 */
private <StreamMessageType> void initializeInMemoryInputStream(InMemoryInputDescriptor<?> descriptor, Map<Integer, Iterable<StreamMessageType>> partitionData) {
    String systemName = descriptor.getSystemName();
    String streamName = (String) descriptor.getPhysicalName().orElse(descriptor.getStreamId());
    if (this.app instanceof LegacyTaskApplication) {
        // for legacy applications that only specify task.class.
        if (configs.containsKey(TaskConfig.INPUT_STREAMS)) {
            configs.put(TaskConfig.INPUT_STREAMS, configs.get(TaskConfig.INPUT_STREAMS).concat("," + systemName + "." + streamName));
        } else {
            configs.put(TaskConfig.INPUT_STREAMS, systemName + "." + streamName);
        }
    }
    InMemorySystemDescriptor imsd = (InMemorySystemDescriptor) descriptor.getSystemDescriptor();
    imsd.withInMemoryScope(this.inMemoryScope);
    addConfig(descriptor.toConfig());
    addConfig(descriptor.getSystemDescriptor().toConfig());
    addSerdeConfigs(descriptor);
    StreamSpec spec = new StreamSpec(descriptor.getStreamId(), streamName, systemName, partitionData.size());
    SystemFactory factory = new InMemorySystemFactory();
    Config config = new MapConfig(descriptor.toConfig(), descriptor.getSystemDescriptor().toConfig());
    factory.getAdmin(systemName, config).createStream(spec);
    InMemorySystemProducer producer = (InMemorySystemProducer) factory.getProducer(systemName, config, null);
    SystemStream sysStream = new SystemStream(systemName, streamName);
    partitionData.forEach((partitionId, partition) -> {
        partition.forEach(e -> {
            Object key = e instanceof KV ? ((KV) e).getKey() : null;
            Object value = e instanceof KV ? ((KV) e).getValue() : e;
            if (value instanceof IncomingMessageEnvelope) {
                producer.send((IncomingMessageEnvelope) value);
            } else {
                producer.send(systemName, new OutgoingMessageEnvelope(sysStream, Integer.valueOf(partitionId), key, value));
            }
        });
        producer.send(systemName, new OutgoingMessageEnvelope(sysStream, Integer.valueOf(partitionId), null, new EndOfStreamMessage(null)));
    });
}

Example 62 with SystemStream

use of org.apache.samza.system.SystemStream in project samza by apache.

the class TestSamzaSqlRelMessageSerde method testNestedRecordConversion.

@Test
public void testNestedRecordConversion() {
    Map<String, String> props = new HashMap<>();
    SystemStream ss1 = new SystemStream("test", "nestedRecord");
    props.put(String.format(ConfigBasedAvroRelSchemaProviderFactory.CFG_SOURCE_SCHEMA, ss1.getSystem(), ss1.getStream()), Profile.SCHEMA$.toString());
    ConfigBasedAvroRelSchemaProviderFactory factory = new ConfigBasedAvroRelSchemaProviderFactory();
    AvroRelSchemaProvider nestedRecordSchemaProvider = (AvroRelSchemaProvider) factory.create(ss1, new MapConfig(props));
    AvroRelConverter nestedRecordAvroRelConverter = new AvroRelConverter(ss1, nestedRecordSchemaProvider, new MapConfig());
    Pair<SamzaSqlRelMessage, GenericData.Record> messageRecordPair = createNestedSamzaSqlRelMessage(nestedRecordAvroRelConverter);
    SamzaSqlRelMessageSerde serde = (SamzaSqlRelMessageSerde) new SamzaSqlRelMessageSerdeFactory().getSerde(null, null);
    SamzaSqlRelMessage resultMsg = serde.fromBytes(serde.toBytes(messageRecordPair.getKey()));
    KV<Object, Object> samzaMessage = nestedRecordAvroRelConverter.convertToSamzaMessage(resultMsg);
    GenericRecord recordPostConversion = (GenericRecord) samzaMessage.getValue();
    for (Schema.Field field : Profile.SCHEMA$.getFields()) {
        // equals() on GenericRecord does the nested record equality check as well.
        Assert.assertEquals(messageRecordPair.getValue().get(field.name()), recordPostConversion.get(field.name()));
    }
}

Example 63 with SystemStream

use of org.apache.samza.system.SystemStream in project samza by apache.

the class TestSamzaSqlRelRecordSerde method testNestedRecordConversion.

@Test
public void testNestedRecordConversion() {
    Map<String, String> props = new HashMap<>();
    SystemStream ss1 = new SystemStream("test", "nestedRecord");
    props.put(String.format(ConfigBasedAvroRelSchemaProviderFactory.CFG_SOURCE_SCHEMA, ss1.getSystem(), ss1.getStream()), Profile.SCHEMA$.toString());
    ConfigBasedAvroRelSchemaProviderFactory factory = new ConfigBasedAvroRelSchemaProviderFactory();
    AvroRelSchemaProvider nestedRecordSchemaProvider = (AvroRelSchemaProvider) factory.create(ss1, new MapConfig(props));
    AvroRelConverter nestedRecordAvroRelConverter = new AvroRelConverter(ss1, nestedRecordSchemaProvider, new MapConfig());
    Pair<SamzaSqlRelMessage, GenericData.Record> messageRecordPair = TestSamzaSqlRelMessageSerde.createNestedSamzaSqlRelMessage(nestedRecordAvroRelConverter);
    SamzaSqlRelRecordSerdeFactory.SamzaSqlRelRecordSerde serde = (SamzaSqlRelRecordSerdeFactory.SamzaSqlRelRecordSerde) new SamzaSqlRelRecordSerdeFactory().getSerde(null, null);
    SamzaSqlRelRecord resultRecord = serde.fromBytes(serde.toBytes(messageRecordPair.getKey().getSamzaSqlRelRecord()));
    GenericData.Record recordPostConversion = (GenericData.Record) nestedRecordAvroRelConverter.convertToAvroObject(resultRecord, Profile.SCHEMA$);
    for (Schema.Field field : Profile.SCHEMA$.getFields()) {
        // equals() on GenericRecord does the nested record equality check as well.
        Assert.assertEquals(messageRecordPair.getValue().get(field.name()), recordPostConversion.get(field.name()));
    }
}

Example 64 with SystemStream

use of org.apache.samza.system.SystemStream in project samza by apache.

the class TestSamzaSqlRemoteTableJoinFunction method testWithInnerJoinWithTableOnRight.

@Test
public void testWithInnerJoinWithTableOnRight() {
    Map<String, String> props = new HashMap<>();
    SystemStream ss = new SystemStream("test", "nestedRecord");
    props.put(String.format(ConfigBasedAvroRelSchemaProviderFactory.CFG_SOURCE_SCHEMA, ss.getSystem(), ss.getStream()), SimpleRecord.SCHEMA$.toString());
    ConfigBasedAvroRelSchemaProviderFactory factory = new ConfigBasedAvroRelSchemaProviderFactory();
    AvroRelSchemaProvider schemaProvider = (AvroRelSchemaProvider) factory.create(ss, new MapConfig(props));
    AvroRelConverter relConverter = new AvroRelConverter(ss, schemaProvider, new MapConfig());
    SamzaRelTableKeyConverter relTableKeyConverter = new SampleRelTableKeyConverter();
    String remoteTableName = "testDb.testTable.$table";
    GenericData.Record tableRecord = new GenericData.Record(SimpleRecord.SCHEMA$);
    tableRecord.put("id", 1);
    tableRecord.put("name", "name1");
    SamzaSqlRelMessage streamMsg = new SamzaSqlRelMessage(streamFieldNames, streamFieldValues, new SamzaSqlRelMsgMetadata(0L, 0L));
    SamzaSqlRelMessage tableMsg = relConverter.convertToRelMessage(new KV(tableRecord.get("id"), tableRecord));
    JoinRelType joinRelType = JoinRelType.INNER;
    List<Integer> streamKeyIds = Arrays.asList(1);
    List<Integer> tableKeyIds = Arrays.asList(0);
    KV<Object, GenericRecord> record = KV.of(tableRecord.get("id"), tableRecord);
    JoinInputNode mockTableInputNode = mock(JoinInputNode.class);
    when(mockTableInputNode.getKeyIds()).thenReturn(tableKeyIds);
    when(mockTableInputNode.isPosOnRight()).thenReturn(true);
    when(mockTableInputNode.getFieldNames()).thenReturn(tableMsg.getSamzaSqlRelRecord().getFieldNames());
    when(mockTableInputNode.getSourceName()).thenReturn(remoteTableName);
    JoinInputNode mockStreamInputNode = mock(JoinInputNode.class);
    when(mockStreamInputNode.getKeyIds()).thenReturn(streamKeyIds);
    when(mockStreamInputNode.isPosOnRight()).thenReturn(false);
    when(mockStreamInputNode.getFieldNames()).thenReturn(streamFieldNames);
    SamzaSqlRemoteTableJoinFunction joinFn = new SamzaSqlRemoteTableJoinFunction(relConverter, relTableKeyConverter, mockStreamInputNode, mockTableInputNode, joinRelType, 0);
    SamzaSqlRelMessage outMsg = joinFn.apply(streamMsg, record);
    Assert.assertEquals(outMsg.getSamzaSqlRelRecord().getFieldValues().size(), outMsg.getSamzaSqlRelRecord().getFieldNames().size());
    List<String> expectedFieldNames = new ArrayList<>(streamFieldNames);
    expectedFieldNames.addAll(tableMsg.getSamzaSqlRelRecord().getFieldNames());
    List<Object> expectedFieldValues = new ArrayList<>(streamFieldValues);
    expectedFieldValues.addAll(tableMsg.getSamzaSqlRelRecord().getFieldValues());
    Assert.assertEquals(expectedFieldNames, outMsg.getSamzaSqlRelRecord().getFieldNames());
    Assert.assertEquals(expectedFieldValues, outMsg.getSamzaSqlRelRecord().getFieldValues());
}

Example 65 with SystemStream

use of org.apache.samza.system.SystemStream in project beam by apache.

the class TranslationContext method createDummyStreamDescriptor.

/**
 * The dummy stream created will only be used in Beam tests.
 */
private static InputDescriptor<OpMessage<String>, ?> createDummyStreamDescriptor(String id) {
    final GenericSystemDescriptor dummySystem = new GenericSystemDescriptor(id, InMemorySystemFactory.class.getName());
    final GenericInputDescriptor<OpMessage<String>> dummyInput = dummySystem.getInputDescriptor(id, new NoOpSerde<>());
    dummyInput.withOffsetDefault(SystemStreamMetadata.OffsetType.OLDEST);
    final Config config = new MapConfig(dummyInput.toConfig(), dummySystem.toConfig());
    final SystemFactory factory = new InMemorySystemFactory();
    final StreamSpec dummyStreamSpec = new StreamSpec(id, id, id, 1);
    factory.getAdmin(id, config).createStream(dummyStreamSpec);
    final SystemProducer producer = factory.getProducer(id, config, null);
    final SystemStream sysStream = new SystemStream(id, id);
    final Consumer<Object> sendFn = (msg) -> {
        producer.send(id, new OutgoingMessageEnvelope(sysStream, 0, null, msg));
    };
    final WindowedValue<String> windowedValue = WindowedValue.timestampedValueInGlobalWindow("dummy", new Instant());
    sendFn.accept(OpMessage.ofElement(windowedValue));
    sendFn.accept(new WatermarkMessage(BoundedWindow.TIMESTAMP_MAX_VALUE.getMillis()));
    sendFn.accept(new EndOfStreamMessage(null));
    return dummyInput;
}