Examples with ReduceSum org.apache.flink.state.api.utils.ReduceSum used on opensource projects

Example 6 with ReduceSum

use of org.apache.flink.state.api.utils.ReduceSum in project flink by apache.

the class SavepointWindowReaderITCase method testReduceWindowStateReader.

@Test
public void testReduceWindowStateReader() throws Exception {
    StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
    env.setStateBackend(getStateBackend());
    env.setParallelism(4);
    env.addSource(createSource(numbers)).rebalance().assignTimestampsAndWatermarks(WatermarkStrategy.<Integer>noWatermarks().withTimestampAssigner((event, timestamp) -> 0)).keyBy(id -> id).window(TumblingEventTimeWindows.of(Time.milliseconds(10))).reduce(new ReduceSum()).uid(uid).addSink(new DiscardingSink<>());
    String savepointPath = takeSavepoint(env);
    SavepointReader savepoint = SavepointReader.read(env, savepointPath, getStateBackend());
    List<Integer> results = JobResultRetriever.collect(savepoint.window(TumblingEventTimeWindows.of(Time.milliseconds(10))).reduce(uid, new ReduceSum(), Types.INT, Types.INT));
    Assert.assertThat("Unexpected results from keyed state", results, Matchers.containsInAnyOrder(numbers));
}

Example 7 with ReduceSum

use of org.apache.flink.state.api.utils.ReduceSum in project flink by apache.

the class SavepointWindowReaderITCase method testReduceEvictorWindowStateReader.

@Test
public void testReduceEvictorWindowStateReader() throws Exception {
    StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
    env.setStateBackend(getStateBackend());
    env.setParallelism(4);
    env.addSource(createSource(numbers)).rebalance().assignTimestampsAndWatermarks(WatermarkStrategy.<Integer>noWatermarks().withTimestampAssigner((event, timestamp) -> 0)).keyBy(id -> id).window(TumblingEventTimeWindows.of(Time.milliseconds(10))).evictor(new NoOpEvictor<>()).reduce(new ReduceSum()).uid(uid).addSink(new DiscardingSink<>());
    String savepointPath = takeSavepoint(env);
    SavepointReader savepoint = SavepointReader.read(env, savepointPath, getStateBackend());
    List<Integer> results = JobResultRetriever.collect(savepoint.window(TumblingEventTimeWindows.of(Time.milliseconds(10))).evictor().reduce(uid, new ReduceSum(), Types.INT, Types.INT));
    Assert.assertThat("Unexpected results from keyed state", results, Matchers.containsInAnyOrder(numbers));
}

Example 8 with ReduceSum

use of org.apache.flink.state.api.utils.ReduceSum in project flink by apache.

the class WindowReaderTest method testSessionWindow.

@Test
public void testSessionWindow() throws Exception {
    WindowOperator<Integer, Integer, ?, Void, ?> operator = getWindowOperator(stream -> stream.window(EventTimeSessionWindows.withGap(Time.milliseconds(3))).reduce(new ReduceSum()));
    OperatorState operatorState = getOperatorState(operator);
    KeyedStateInputFormat<Integer, TimeWindow, Integer> format = new KeyedStateInputFormat<>(operatorState, new MemoryStateBackend(), new Configuration(), WindowReaderOperator.reduce(new ReduceSum(), new PassThroughReader<>(), Types.INT, new TimeWindow.Serializer(), Types.INT));
    List<Integer> list = readState(format);
    Assert.assertEquals(Collections.singletonList(2), list);
}