Examples with StreamEventWriter org.apache.druid.testing.utils.StreamEventWriter used on opensource projects

Example 6 with StreamEventWriter

use of org.apache.druid.testing.utils.StreamEventWriter in project druid by druid-io.

the class AbstractStreamIndexingTest method doTestIndexDataWithAutoscaler.

protected void doTestIndexDataWithAutoscaler(@Nullable Boolean transactionEnabled) throws Exception {
    final GeneratedTestConfig generatedTestConfig = new GeneratedTestConfig(INPUT_FORMAT, getResourceAsString(JSON_INPUT_FORMAT_PATH));
    try (final Closeable closer = createResourceCloser(generatedTestConfig);
        final StreamEventWriter streamEventWriter = createStreamEventWriter(config, transactionEnabled)) {
        final String taskSpec = generatedTestConfig.getStreamIngestionPropsTransform().apply(getResourceAsString(SUPERVISOR_WITH_AUTOSCALER_SPEC_TEMPLATE_PATH));
        LOG.info("supervisorSpec: [%s]\n", taskSpec);
        // Start supervisor
        generatedTestConfig.setSupervisorId(indexer.submitSupervisor(taskSpec));
        LOG.info("Submitted supervisor");
        // Start generating half of the data
        int secondsToGenerateRemaining = TOTAL_NUMBER_OF_SECOND;
        int secondsToGenerateFirstRound = TOTAL_NUMBER_OF_SECOND / 2;
        secondsToGenerateRemaining = secondsToGenerateRemaining - secondsToGenerateFirstRound;
        final StreamGenerator streamGenerator = new WikipediaStreamEventStreamGenerator(new JsonEventSerializer(jsonMapper), EVENTS_PER_SECOND, CYCLE_PADDING_MS);
        long numWritten = streamGenerator.run(generatedTestConfig.getStreamName(), streamEventWriter, secondsToGenerateFirstRound, FIRST_EVENT_TIME);
        // Verify supervisor is healthy before suspension
        ITRetryUtil.retryUntil(() -> SupervisorStateManager.BasicState.RUNNING.equals(indexer.getSupervisorStatus(generatedTestConfig.getSupervisorId())), true, 10000, 30, "Waiting for supervisor to be healthy");
        // wait for autoScaling task numbers from 1 to 2.
        ITRetryUtil.retryUntil(() -> indexer.getRunningTasks().size() == 2, true, 10000, 50, "waiting for autoScaling task numbers from 1 to 2");
        // Start generating remainning half of the data
        numWritten += streamGenerator.run(generatedTestConfig.getStreamName(), streamEventWriter, secondsToGenerateRemaining, FIRST_EVENT_TIME.plusSeconds(secondsToGenerateFirstRound));
        // Verify that supervisor can catch up with the stream
        verifyIngestedData(generatedTestConfig, numWritten);
    }
}