Examples with CreateReaderGroupEvent io.pravega.shared.controller.event.CreateReaderGroupEvent used on opensource projects

Example 1 with CreateReaderGroupEvent

use of io.pravega.shared.controller.event.CreateReaderGroupEvent in project pravega by pravega.

the class CreateReaderGroupTask method execute.

@Override
public CompletableFuture<Void> execute(final CreateReaderGroupEvent request) {
    String scope = request.getScope();
    String readerGroup = request.getRgName();
    UUID readerGroupId = request.getReaderGroupId();
    ReaderGroupConfig config = getConfigFromEvent(request);
    long requestId = request.getRequestId();
    OperationContext context = streamMetadataStore.createRGContext(scope, readerGroup, requestId);
    return streamMetadataStore.isScopeSealed(scope, context, executor).thenCompose(exists -> {
        if (exists) {
            log.warn(requestId, "Scope {} already in sealed state", scope);
            return CompletableFuture.completedFuture(null);
        }
        return RetryHelper.withRetriesAsync(() -> streamMetadataStore.getReaderGroupId(scope, readerGroup, context, executor).thenCompose(rgId -> {
            if (!rgId.equals(readerGroupId)) {
                log.warn(requestId, "Skipping processing of CreateReaderGroupEvent with stale UUID.");
                return CompletableFuture.completedFuture(null);
            }
            return streamMetadataTasks.isRGCreationComplete(scope, readerGroup, context).thenCompose(complete -> {
                if (!complete) {
                    return Futures.toVoid(streamMetadataTasks.createReaderGroupTasks(scope, readerGroup, config, request.getCreateTimeStamp(), context));
                }
                return CompletableFuture.completedFuture(null);
            });
        }), e -> Exceptions.unwrap(e) instanceof RetryableException, Integer.MAX_VALUE, executor);
    });
}

Example 2 with CreateReaderGroupEvent

use of io.pravega.shared.controller.event.CreateReaderGroupEvent in project pravega by pravega.

the class StreamMetadataTasksTest method readerGroupFailureTests.

@Test(timeout = 30000)
public void readerGroupFailureTests() throws InterruptedException {
    WriterMock requestEventWriter = new WriterMock(streamMetadataTasks, executor);
    streamMetadataTasks.setRequestEventWriter(requestEventWriter);
    UpdateReaderGroupEvent badUpdateEvent = new UpdateReaderGroupEvent(SCOPE, "rg3", 2L, UUID.randomUUID(), 0L, false, ImmutableSet.of());
    requestEventWriter.writeEvent(badUpdateEvent);
    AssertExtensions.assertFutureThrows("DataNotFoundException", processFailingEvent(requestEventWriter), e -> Exceptions.unwrap(e) instanceof StoreException.DataNotFoundException);
    String scopedStreamName = "scope/stream";
    ReaderGroupConfig rgConf = ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream(scopedStreamName).retentionType(ReaderGroupConfig.StreamDataRetention.NONE).build();
    CreateReaderGroupEvent badCreateEvent = buildCreateRGEvent(SCOPE, "rg", rgConf, 1L, System.currentTimeMillis());
    requestEventWriter.writeEvent(badCreateEvent);
    AssertExtensions.assertFutureThrows("DataNotFoundException", processFailingEvent(requestEventWriter), e -> Exceptions.unwrap(e) instanceof StoreException.DataNotFoundException);
    DeleteReaderGroupEvent badDeleteEvent = new DeleteReaderGroupEvent(SCOPE, "rg3", 1L, UUID.randomUUID());
    requestEventWriter.writeEvent(badDeleteEvent);
    AssertExtensions.assertFutureThrows("DataNotFoundException", processFailingEvent(requestEventWriter), e -> Exceptions.unwrap(e) instanceof StoreException.DataNotFoundException);
}