use of org.apache.samza.sql.data.SamzaSqlRelMsgMetadata in project samza by apache.
the class SamzaSqlInputTransformer method apply.
@Override
public Object apply(IncomingMessageEnvelope ime) {
Assert.notNull(ime, "ime is null");
KV<Object, Object> keyAndMessageKV = KV.of(ime.getKey(), ime.getMessage());
SamzaSqlRelMsgMetadata metadata = new SamzaSqlRelMsgMetadata(ime.getEventTime(), ime.getArrivalTime());
SamzaSqlInputMessage samzaMsg = SamzaSqlInputMessage.of(keyAndMessageKV, metadata);
return samzaMsg;
}
use of org.apache.samza.sql.data.SamzaSqlRelMsgMetadata in project samza by apache.
the class AvroRelConverter method convertToRelMessage.
/**
* Converts the nested avro object in SamzaMessage to relational message corresponding to
* the tableName with relational schema.
*/
@Override
public SamzaSqlRelMessage convertToRelMessage(KV<Object, Object> samzaMessage) {
List<String> payloadFieldNames = new ArrayList<>();
List<Object> payloadFieldValues = new ArrayList<>();
Object value = samzaMessage.getValue();
if (value instanceof IndexedRecord) {
fetchFieldNamesAndValuesFromIndexedRecord((IndexedRecord) value, payloadFieldNames, payloadFieldValues, payloadSchema);
} else if (value == null) {
// If the payload is null, set each record value as null
payloadFieldNames.addAll(payloadSchema.getFields().stream().map(Schema.Field::name).collect(Collectors.toList()));
IntStream.range(0, payloadFieldNames.size()).forEach(x -> payloadFieldValues.add(null));
} else {
String msg = "Avro message converter doesn't support messages of type " + value.getClass();
LOG.error(msg);
throw new SamzaException(msg);
}
return new SamzaSqlRelMessage(samzaMessage.getKey(), payloadFieldNames, payloadFieldValues, new SamzaSqlRelMsgMetadata(0L, 0L));
}
use of org.apache.samza.sql.data.SamzaSqlRelMsgMetadata in project samza by apache.
the class LogicalAggregateTranslator method translate.
void translate(final LogicalAggregate aggregate, final TranslatorContext context) {
validateAggregateFunctions(aggregate);
MessageStream<SamzaSqlRelMessage> inputStream = context.getMessageStream(aggregate.getInput().getId());
// At this point, the assumption is that only count function is supported.
SupplierFunction<Long> initialValue = () -> (long) 0;
FoldLeftFunction<SamzaSqlRelMessage, Long> foldCountFn = (m, c) -> c + 1;
final ArrayList<String> aggFieldNames = getAggFieldNames(aggregate);
MessageStream<SamzaSqlRelMessage> outputStream = inputStream.map(new TranslatorInputMetricsMapFunction(logicalOpId)).window(Windows.keyedTumblingWindow(m -> m, Duration.ofMillis(context.getExecutionContext().getSamzaSqlApplicationConfig().getWindowDurationMs()), initialValue, foldCountFn, new SamzaSqlRelMessageSerdeFactory.SamzaSqlRelMessageSerde(), new LongSerde()).setAccumulationMode(AccumulationMode.DISCARDING), changeLogStorePrefix + "_tumblingWindow_" + logicalOpId).map(windowPane -> {
List<String> fieldNames = windowPane.getKey().getKey().getSamzaSqlRelRecord().getFieldNames();
List<Object> fieldValues = windowPane.getKey().getKey().getSamzaSqlRelRecord().getFieldValues();
fieldNames.add(aggFieldNames.get(0));
fieldValues.add(windowPane.getMessage());
return new SamzaSqlRelMessage(fieldNames, fieldValues, new SamzaSqlRelMsgMetadata(0L, 0L));
});
context.registerMessageStream(aggregate.getId(), outputStream);
outputStream.map(new TranslatorOutputMetricsMapFunction(logicalOpId));
}
use of org.apache.samza.sql.data.SamzaSqlRelMsgMetadata in project samza by apache.
the class TestSamzaSqlRelMessageSerde method testWithDifferentFields.
@Test
public void testWithDifferentFields() {
SamzaSqlRelMessage message = new SamzaSqlRelMessage(names, values, new SamzaSqlRelMsgMetadata(0L, 0L));
SamzaSqlRelMessageSerde serde = (SamzaSqlRelMessageSerde) new SamzaSqlRelMessageSerdeFactory().getSerde(null, null);
SamzaSqlRelMessage resultMsg = serde.fromBytes(serde.toBytes(message));
Assert.assertEquals(names, resultMsg.getSamzaSqlRelRecord().getFieldNames());
Assert.assertEquals(values, resultMsg.getSamzaSqlRelRecord().getFieldValues());
}
use of org.apache.samza.sql.data.SamzaSqlRelMsgMetadata in project samza by apache.
the class TestFilterTranslator method testTranslate.
@Test
public void testTranslate() throws IOException, ClassNotFoundException {
// setup mock values to the constructor of FilterTranslator
LogicalFilter mockFilter = PowerMockito.mock(LogicalFilter.class);
Context mockContext = mock(Context.class);
ContainerContext mockContainerContext = mock(ContainerContext.class);
TranslatorContext mockTranslatorContext = mock(TranslatorContext.class);
TestMetricsRegistryImpl metricsRegistry = new TestMetricsRegistryImpl();
RelNode mockInput = mock(RelNode.class);
when(mockFilter.getInput()).thenReturn(mockInput);
when(mockInput.getId()).thenReturn(1);
when(mockFilter.getId()).thenReturn(2);
StreamApplicationDescriptorImpl mockGraph = mock(StreamApplicationDescriptorImpl.class);
OperatorSpec<Object, SamzaSqlRelMessage> mockInputOp = mock(OperatorSpec.class);
MessageStream<SamzaSqlRelMessage> mockStream = new MessageStreamImpl<>(mockGraph, mockInputOp);
when(mockTranslatorContext.getMessageStream(eq(1))).thenReturn(mockStream);
doAnswer(this.getRegisterMessageStreamAnswer()).when(mockTranslatorContext).registerMessageStream(eq(2), any(MessageStream.class));
RexToJavaCompiler mockCompiler = mock(RexToJavaCompiler.class);
when(mockTranslatorContext.getExpressionCompiler()).thenReturn(mockCompiler);
Expression mockExpr = mock(Expression.class);
when(mockCompiler.compile(any(), any())).thenReturn(mockExpr);
when(mockContext.getContainerContext()).thenReturn(mockContainerContext);
when(mockContainerContext.getContainerMetricsRegistry()).thenReturn(metricsRegistry);
// Apply translate() method to verify that we are getting the correct filter operator constructed
FilterTranslator filterTranslator = new FilterTranslator(1);
filterTranslator.translate(mockFilter, LOGICAL_OP_ID, mockTranslatorContext);
// make sure that context has been registered with LogicFilter and output message streams
verify(mockTranslatorContext, times(1)).registerRelNode(2, mockFilter);
verify(mockTranslatorContext, times(1)).registerMessageStream(2, this.getRegisteredMessageStream(2));
when(mockTranslatorContext.getRelNode(2)).thenReturn(mockFilter);
when(mockTranslatorContext.getMessageStream(2)).thenReturn(this.getRegisteredMessageStream(2));
StreamOperatorSpec filterSpec = (StreamOperatorSpec) Whitebox.getInternalState(this.getRegisteredMessageStream(2), "operatorSpec");
assertNotNull(filterSpec);
assertEquals(filterSpec.getOpCode(), OperatorSpec.OpCode.FILTER);
// Verify that the describe() method will establish the context for the filter function
Map<Integer, TranslatorContext> mockContexts = new HashMap<>();
mockContexts.put(1, mockTranslatorContext);
when(mockContext.getApplicationTaskContext()).thenReturn(new SamzaSqlApplicationContext(mockContexts));
filterSpec.getTransformFn().init(mockContext);
FilterFunction filterFn = (FilterFunction) Whitebox.getInternalState(filterSpec, "filterFn");
assertNotNull(filterFn);
assertEquals(mockTranslatorContext, Whitebox.getInternalState(filterFn, "translatorContext"));
assertEquals(mockFilter, Whitebox.getInternalState(filterFn, "filter"));
assertEquals(mockExpr, Whitebox.getInternalState(filterFn, "expr"));
// Verify MetricsRegistry works with Project
assertEquals(1, metricsRegistry.getGauges().size());
assertTrue(metricsRegistry.getGauges().get(LOGICAL_OP_ID).size() > 0);
assertEquals(1, metricsRegistry.getCounters().size());
assertEquals(3, metricsRegistry.getCounters().get(LOGICAL_OP_ID).size());
assertEquals(0, metricsRegistry.getCounters().get(LOGICAL_OP_ID).get(0).getCount());
assertEquals(0, metricsRegistry.getCounters().get(LOGICAL_OP_ID).get(1).getCount());
// Calling filterFn.apply() to verify the filter function is correctly applied to the input message
SamzaSqlRelMessage mockInputMsg = new SamzaSqlRelMessage(new ArrayList<>(), new ArrayList<>(), new SamzaSqlRelMsgMetadata(0L, 0L));
SamzaSqlExecutionContext executionContext = mock(SamzaSqlExecutionContext.class);
DataContext dataContext = mock(DataContext.class);
when(mockTranslatorContext.getExecutionContext()).thenReturn(executionContext);
when(mockTranslatorContext.getDataContext()).thenReturn(dataContext);
Object[] result = new Object[1];
doAnswer(invocation -> {
Object[] retValue = invocation.getArgumentAt(4, Object[].class);
retValue[0] = new Boolean(true);
return null;
}).when(mockExpr).execute(eq(executionContext), eq(mockContext), eq(dataContext), eq(mockInputMsg.getSamzaSqlRelRecord().getFieldValues().toArray()), eq(result));
assertTrue(filterFn.apply(mockInputMsg));
doAnswer(invocation -> {
Object[] retValue = invocation.getArgumentAt(4, Object[].class);
retValue[0] = new Boolean(false);
return null;
}).when(mockExpr).execute(eq(executionContext), eq(mockContext), eq(dataContext), eq(mockInputMsg.getSamzaSqlRelRecord().getFieldValues().toArray()), eq(result));
assertFalse(filterFn.apply(mockInputMsg));
// Verify filterFn.apply() updates the MetricsRegistry metrics
assertEquals(2, metricsRegistry.getCounters().get(LOGICAL_OP_ID).get(0).getCount());
assertEquals(1, metricsRegistry.getCounters().get(LOGICAL_OP_ID).get(1).getCount());
}
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