Examples with Context org.apache.samza.context.Context used on opensource projects

Example 11 with Context

use of org.apache.samza.context.Context in project samza by apache.

the class TestProjectTranslator method testTranslate.

@Test
public void testTranslate() throws IOException, ClassNotFoundException {
    // setup mock values to the constructor of FilterTranslator
    LogicalProject mockProject = PowerMockito.mock(LogicalProject.class);
    Context mockContext = mock(Context.class);
    ContainerContext mockContainerContext = mock(ContainerContext.class);
    TranslatorContext mockTranslatorContext = mock(TranslatorContext.class);
    TestMetricsRegistryImpl testMetricsRegistryImpl = new TestMetricsRegistryImpl();
    RelNode mockInput = mock(RelNode.class);
    List<RelNode> inputs = new ArrayList<>();
    inputs.add(mockInput);
    when(mockInput.getId()).thenReturn(1);
    when(mockProject.getId()).thenReturn(2);
    when(mockProject.getInputs()).thenReturn(inputs);
    when(mockProject.getInput()).thenReturn(mockInput);
    RelDataType mockRowType = mock(RelDataType.class);
    when(mockRowType.getFieldCount()).thenReturn(1);
    when(mockProject.getRowType()).thenReturn(mockRowType);
    RexNode mockRexField = mock(RexNode.class);
    List<Pair<RexNode, String>> namedProjects = new ArrayList<>();
    namedProjects.add(Pair.of(mockRexField, "test_field"));
    when(mockProject.getNamedProjects()).thenReturn(namedProjects);
    StreamApplicationDescriptorImpl mockAppDesc = mock(StreamApplicationDescriptorImpl.class);
    OperatorSpec<Object, SamzaSqlRelMessage> mockInputOp = mock(OperatorSpec.class);
    MessageStream<SamzaSqlRelMessage> mockStream = new MessageStreamImpl<>(mockAppDesc, 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(testMetricsRegistryImpl);
    // Apply translate() method to verify that we are getting the correct map operator constructed
    ProjectTranslator projectTranslator = new ProjectTranslator(1);
    projectTranslator.translate(mockProject, LOGICAL_OP_ID, mockTranslatorContext);
    // make sure that context has been registered with LogicFilter and output message streams
    verify(mockTranslatorContext, times(1)).registerRelNode(2, mockProject);
    verify(mockTranslatorContext, times(1)).registerMessageStream(2, this.getRegisteredMessageStream(2));
    when(mockTranslatorContext.getRelNode(2)).thenReturn(mockProject);
    when(mockTranslatorContext.getMessageStream(2)).thenReturn(this.getRegisteredMessageStream(2));
    StreamOperatorSpec projectSpec = (StreamOperatorSpec) Whitebox.getInternalState(this.getRegisteredMessageStream(2), "operatorSpec");
    assertNotNull(projectSpec);
    assertEquals(projectSpec.getOpCode(), OperatorSpec.OpCode.MAP);
    // Verify that the bootstrap() method will establish the context for the map function
    Map<Integer, TranslatorContext> mockContexts = new HashMap<>();
    mockContexts.put(1, mockTranslatorContext);
    when(mockContext.getApplicationTaskContext()).thenReturn(new SamzaSqlApplicationContext(mockContexts));
    projectSpec.getTransformFn().init(mockContext);
    MapFunction mapFn = (MapFunction) Whitebox.getInternalState(projectSpec, "mapFn");
    assertNotNull(mapFn);
    assertEquals(mockTranslatorContext, Whitebox.getInternalState(mapFn, "translatorContext"));
    assertEquals(mockProject, Whitebox.getInternalState(mapFn, "project"));
    assertEquals(mockExpr, Whitebox.getInternalState(mapFn, "expr"));
    // Verify TestMetricsRegistryImpl works with Project
    assertEquals(1, testMetricsRegistryImpl.getGauges().size());
    assertEquals(2, testMetricsRegistryImpl.getGauges().get(LOGICAL_OP_ID).size());
    assertEquals(1, testMetricsRegistryImpl.getCounters().size());
    assertEquals(2, testMetricsRegistryImpl.getCounters().get(LOGICAL_OP_ID).size());
    assertEquals(0, testMetricsRegistryImpl.getCounters().get(LOGICAL_OP_ID).get(0).getCount());
    assertEquals(0, testMetricsRegistryImpl.getCounters().get(LOGICAL_OP_ID).get(1).getCount());
    // Calling mapFn.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];
    final Object mockFieldObj = new Object();
    doAnswer(invocation -> {
        Object[] retValue = invocation.getArgumentAt(4, Object[].class);
        retValue[0] = mockFieldObj;
        return null;
    }).when(mockExpr).execute(eq(executionContext), eq(mockContext), eq(dataContext), eq(mockInputMsg.getSamzaSqlRelRecord().getFieldValues().toArray()), eq(result));
    SamzaSqlRelMessage retMsg = (SamzaSqlRelMessage) mapFn.apply(mockInputMsg);
    assertEquals(retMsg.getSamzaSqlRelRecord().getFieldNames(), Collections.singletonList("test_field"));
    assertEquals(retMsg.getSamzaSqlRelRecord().getFieldValues(), Collections.singletonList(mockFieldObj));
    // Verify mapFn.apply() updates the TestMetricsRegistryImpl metrics
    assertEquals(1, testMetricsRegistryImpl.getCounters().get(LOGICAL_OP_ID).get(0).getCount());
    assertEquals(1, testMetricsRegistryImpl.getCounters().get(LOGICAL_OP_ID).get(1).getCount());
}

Example 12 with Context

use of org.apache.samza.context.Context in project samza by apache.

the class TestStreamTableJoinOperatorImpl method testJoinFunctionIsInvokedOnlyOnce.

/**
 * Ensure join function is not invoked more than once when join function returns null on the first invocation
 */
@Test
public void testJoinFunctionIsInvokedOnlyOnce() {
    final String tableId = "testTable";
    final CountDownLatch joinInvokedLatch = new CountDownLatch(1);
    StreamTableJoinOperatorSpec mockJoinOpSpec = mock(StreamTableJoinOperatorSpec.class);
    when(mockJoinOpSpec.getTableId()).thenReturn(tableId);
    when(mockJoinOpSpec.getArgs()).thenReturn(new Object[0]);
    when(mockJoinOpSpec.getJoinFn()).thenReturn(new StreamTableJoinFunction<String, KV<String, String>, KV<String, String>, String>() {

        @Override
        public String apply(KV<String, String> message, KV<String, String> record) {
            joinInvokedLatch.countDown();
            return null;
        }

        @Override
        public String getMessageKey(KV<String, String> message) {
            return message.getKey();
        }

        @Override
        public String getRecordKey(KV<String, String> record) {
            return record.getKey();
        }
    });
    ReadWriteUpdateTable table = mock(ReadWriteUpdateTable.class);
    when(table.getAsync("1")).thenReturn(CompletableFuture.completedFuture("r1"));
    Context context = new MockContext();
    when(context.getTaskContext().getUpdatableTable(tableId)).thenReturn(table);
    MessageCollector mockMessageCollector = mock(MessageCollector.class);
    TaskCoordinator mockTaskCoordinator = mock(TaskCoordinator.class);
    StreamTableJoinOperatorImpl streamTableJoinOperator = new StreamTableJoinOperatorImpl(mockJoinOpSpec, context);
    // Table has the key
    streamTableJoinOperator.handleMessage(KV.of("1", "m1"), mockMessageCollector, mockTaskCoordinator);
    assertEquals("Join function should only be invoked once", 0, joinInvokedLatch.getCount());
}

Example 13 with Context

use of org.apache.samza.context.Context in project samza by apache.

the class TestLocalTableWrite method createTable.

private LocalTable createTable(boolean isTimerDisabled) {
    Map<String, String> config = new HashMap<>();
    if (isTimerDisabled) {
        config.put(MetricsConfig.METRICS_TIMER_ENABLED, "false");
    }
    Context context = mock(Context.class);
    JobContext jobContext = mock(JobContext.class);
    when(context.getJobContext()).thenReturn(jobContext);
    when(jobContext.getConfig()).thenReturn(new MapConfig(config));
    ContainerContext containerContext = mock(ContainerContext.class);
    when(context.getContainerContext()).thenReturn(containerContext);
    when(containerContext.getContainerMetricsRegistry()).thenReturn(metricsRegistry);
    LocalTable table = new LocalTable("t1", kvStore);
    table.init(context);
    return table;
}

Example 14 with Context

use of org.apache.samza.context.Context in project samza by apache.

the class TestRemoteTableEndToEnd method createMockContext.

private Context createMockContext() {
    MetricsRegistry metricsRegistry = mock(MetricsRegistry.class);
    doReturn(new Counter("")).when(metricsRegistry).newCounter(anyString(), anyString());
    doReturn(new Timer("")).when(metricsRegistry).newTimer(anyString(), anyString());
    Context context = new MockContext();
    doReturn(new MapConfig()).when(context.getJobContext()).getConfig();
    doReturn(metricsRegistry).when(context.getContainerContext()).getContainerMetricsRegistry();
    return context;
}

Example 15 with Context

use of org.apache.samza.context.Context in project samza by apache.

the class TestCachingTable method initTables.

private void initTables(boolean isTimerMetricsDisabled, ReadWriteUpdateTable... tables) {
    Map<String, String> config = new HashMap<>();
    if (isTimerMetricsDisabled) {
        config.put(MetricsConfig.METRICS_TIMER_ENABLED, "false");
    }
    Context context = new MockContext();
    doReturn(new MapConfig(config)).when(context.getJobContext()).getConfig();
    metricsRegistry = mock(MetricsRegistry.class);
    doReturn(mock(Timer.class)).when(metricsRegistry).newTimer(anyString(), anyString());
    doReturn(mock(Counter.class)).when(metricsRegistry).newCounter(anyString(), anyString());
    doReturn(mock(Gauge.class)).when(metricsRegistry).newGauge(anyString(), any());
    doReturn(metricsRegistry).when(context.getContainerContext()).getContainerMetricsRegistry();
    Arrays.asList(tables).forEach(t -> t.init(context));
}