Examples with SinkFunction org.apache.samza.operators.functions.SinkFunction used on opensource projects

Example 1 with SinkFunction

use of org.apache.samza.operators.functions.SinkFunction in project samza by apache.

the class TestOperatorImpls method testCreateOperator.

@Test
public void testCreateOperator() throws NoSuchFieldException, IllegalAccessException, InvocationTargetException {
    // get window operator
    WindowOperatorSpec mockWnd = mock(WindowOperatorSpec.class);
    WindowInternal<TestMessageEnvelope, String, Integer> windowInternal = new WindowInternal<>(null, null, null, null, null, WindowType.TUMBLING);
    when(mockWnd.getWindow()).thenReturn(windowInternal);
    Config mockConfig = mock(Config.class);
    TaskContext mockContext = mock(TaskContext.class);
    OperatorImplGraph opGraph = new OperatorImplGraph();
    OperatorImpl<TestMessageEnvelope, ?> opImpl = (OperatorImpl<TestMessageEnvelope, ?>) createOpMethod.invoke(opGraph, mockWnd, mockConfig, mockContext);
    assertTrue(opImpl instanceof WindowOperatorImpl);
    Field wndInternalField = WindowOperatorImpl.class.getDeclaredField("window");
    wndInternalField.setAccessible(true);
    WindowInternal wndInternal = (WindowInternal) wndInternalField.get(opImpl);
    assertEquals(wndInternal, windowInternal);
    // get simple operator
    StreamOperatorSpec<TestMessageEnvelope, TestOutputMessageEnvelope> mockSimpleOp = mock(StreamOperatorSpec.class);
    FlatMapFunction<TestMessageEnvelope, TestOutputMessageEnvelope> mockTxfmFn = mock(FlatMapFunction.class);
    when(mockSimpleOp.getTransformFn()).thenReturn(mockTxfmFn);
    opImpl = (OperatorImpl<TestMessageEnvelope, ?>) createOpMethod.invoke(opGraph, mockSimpleOp, mockConfig, mockContext);
    assertTrue(opImpl instanceof StreamOperatorImpl);
    Field txfmFnField = StreamOperatorImpl.class.getDeclaredField("transformFn");
    txfmFnField.setAccessible(true);
    assertEquals(mockTxfmFn, txfmFnField.get(opImpl));
    // get sink operator
    SinkFunction<TestMessageEnvelope> sinkFn = (m, mc, tc) -> {
    };
    SinkOperatorSpec<TestMessageEnvelope> sinkOp = mock(SinkOperatorSpec.class);
    when(sinkOp.getSinkFn()).thenReturn(sinkFn);
    opImpl = (OperatorImpl<TestMessageEnvelope, ?>) createOpMethod.invoke(opGraph, sinkOp, mockConfig, mockContext);
    assertTrue(opImpl instanceof SinkOperatorImpl);
    Field sinkFnField = SinkOperatorImpl.class.getDeclaredField("sinkFn");
    sinkFnField.setAccessible(true);
    assertEquals(sinkFn, sinkFnField.get(opImpl));
    // get join operator
    PartialJoinOperatorSpec<String, TestMessageEnvelope, TestMessageEnvelope, TestOutputMessageEnvelope> joinOp = mock(PartialJoinOperatorSpec.class);
    opImpl = (OperatorImpl<TestMessageEnvelope, ?>) createOpMethod.invoke(opGraph, joinOp, mockConfig, mockContext);
    assertTrue(opImpl instanceof PartialJoinOperatorImpl);
}