Examples with TestingReaderContext org.apache.flink.connector.testutils.source.reader.TestingReaderContext used on opensource projects

Example 11 with TestingReaderContext

use of org.apache.flink.connector.testutils.source.reader.TestingReaderContext in project flink by apache.

the class SourceReaderBaseTest method createReaderAndAwaitAvailable.

// ------------------------------------------------------------------------
// Testing Setup Helpers
// ------------------------------------------------------------------------
private static <E> SourceReader<E, ?> createReaderAndAwaitAvailable(final String splitId, final RecordsWithSplitIds<E> records) throws Exception {
    final FutureCompletingBlockingQueue<RecordsWithSplitIds<E>> elementsQueue = new FutureCompletingBlockingQueue<>();
    final SourceReader<E, TestingSourceSplit> reader = new SingleThreadMultiplexSourceReaderBase<E, E, TestingSourceSplit, TestingSourceSplit>(elementsQueue, () -> new TestingSplitReader<>(records), new PassThroughRecordEmitter<>(), new Configuration(), new TestingReaderContext()) {

        @Override
        public void notifyCheckpointComplete(long checkpointId) {
        }

        @Override
        protected void onSplitFinished(Map<String, TestingSourceSplit> finishedSplitIds) {
        }

        @Override
        protected TestingSourceSplit initializedState(TestingSourceSplit split) {
            return split;
        }

        @Override
        protected TestingSourceSplit toSplitType(String splitId, TestingSourceSplit splitState) {
            return splitState;
        }
    };
    reader.start();
    final List<TestingSourceSplit> splits = Collections.singletonList(new TestingSourceSplit(splitId));
    reader.addSplits(splits);
    reader.isAvailable().get();
    return reader;
}

Example 12 with TestingReaderContext

use of org.apache.flink.connector.testutils.source.reader.TestingReaderContext in project flink by apache.

the class SourceReaderBaseTest method createReader.

// ---------------- helper methods -----------------
@Override
protected MockSourceReader createReader() {
    FutureCompletingBlockingQueue<RecordsWithSplitIds<int[]>> elementsQueue = new FutureCompletingBlockingQueue<>();
    MockSplitReader mockSplitReader = MockSplitReader.newBuilder().setNumRecordsPerSplitPerFetch(2).setBlockingFetch(true).build();
    return new MockSourceReader(elementsQueue, () -> mockSplitReader, getConfig(), new TestingReaderContext());
}

Example 13 with TestingReaderContext

use of org.apache.flink.connector.testutils.source.reader.TestingReaderContext in project flink by apache.

the class SourceReaderBaseTest method testMultipleSplitsWithSeparatedFinishedRecord.

@Test
void testMultipleSplitsWithSeparatedFinishedRecord() throws Exception {
    FutureCompletingBlockingQueue<RecordsWithSplitIds<int[]>> elementsQueue = new FutureCompletingBlockingQueue<>();
    MockSplitReader mockSplitReader = MockSplitReader.newBuilder().setNumRecordsPerSplitPerFetch(2).setSeparatedFinishedRecord(true).setBlockingFetch(false).build();
    MockSourceReader reader = new MockSourceReader(elementsQueue, () -> mockSplitReader, getConfig(), new TestingReaderContext());
    reader.start();
    List<MockSourceSplit> splits = Arrays.asList(getSplit(0, 10, Boundedness.BOUNDED), getSplit(1, 10, Boundedness.BOUNDED));
    reader.addSplits(splits);
    reader.notifyNoMoreSplits();
    while (true) {
        InputStatus status = reader.pollNext(new TestingReaderOutput<>());
        if (status == InputStatus.END_OF_INPUT) {
            break;
        }
        if (status == InputStatus.NOTHING_AVAILABLE) {
            reader.isAvailable().get();
        }
    }
}

Example 14 with TestingReaderContext

use of org.apache.flink.connector.testutils.source.reader.TestingReaderContext in project flink by apache.

the class HybridSourceReaderTest method testReaderRecovery.

@Test
public void testReaderRecovery() throws Exception {
    TestingReaderContext readerContext = new TestingReaderContext();
    TestingReaderOutput<Integer> readerOutput = new TestingReaderOutput<>();
    MockBaseSource source = new MockBaseSource(1, 1, Boundedness.BOUNDED);
    HybridSourceReader<Integer> reader = new HybridSourceReader<>(readerContext);
    reader.start();
    assertAndClearSourceReaderFinishedEvent(readerContext, -1);
    reader.handleSourceEvents(new SwitchSourceEvent(0, source, false));
    MockSourceSplit mockSplit = new MockSourceSplit(0, 0, 2147483647);
    SwitchedSources switchedSources = new SwitchedSources();
    switchedSources.put(0, source);
    HybridSourceSplit hybridSplit = HybridSourceSplit.wrapSplit(mockSplit, 0, switchedSources);
    reader.addSplits(Collections.singletonList(hybridSplit));
    List<HybridSourceSplit> snapshot = reader.snapshotState(0);
    Assert.assertThat(snapshot, Matchers.contains(hybridSplit));
    // reader recovery
    readerContext.clearSentEvents();
    reader = new HybridSourceReader<>(readerContext);
    reader.addSplits(snapshot);
    Assert.assertNull(currentReader(reader));
    reader.start();
    Assert.assertNull(currentReader(reader));
    assertAndClearSourceReaderFinishedEvent(readerContext, -1);
    reader.handleSourceEvents(new SwitchSourceEvent(0, source, false));
    Assert.assertNotNull(currentReader(reader));
    Assert.assertThat(reader.snapshotState(1), Matchers.contains(hybridSplit));
    reader.close();
}

Example 15 with TestingReaderContext

use of org.apache.flink.connector.testutils.source.reader.TestingReaderContext in project flink by apache.

the class HybridSourceReaderTest method testDefaultMethodDelegation.

@Test
public void testDefaultMethodDelegation() throws Exception {
    TestingReaderContext readerContext = new TestingReaderContext();
    TestingReaderOutput<Integer> readerOutput = new TestingReaderOutput<>();
    MockBaseSource source = new MockBaseSource(1, 1, Boundedness.BOUNDED) {

        @Override
        public SourceReader<Integer, MockSourceSplit> createReader(SourceReaderContext readerContext) {
            return Mockito.spy(super.createReader(readerContext));
        }
    };
    HybridSourceReader<Integer> reader = new HybridSourceReader<>(readerContext);
    reader.start();
    assertAndClearSourceReaderFinishedEvent(readerContext, -1);
    reader.handleSourceEvents(new SwitchSourceEvent(0, source, false));
    SourceReader<Integer, MockSourceSplit> underlyingReader = currentReader(reader);
    reader.notifyCheckpointComplete(1);
    Mockito.verify(underlyingReader).notifyCheckpointComplete(1);
    reader.notifyCheckpointAborted(1);
    Mockito.verify(underlyingReader).notifyCheckpointAborted(1);
    reader.close();
}