Examples with ServiceUnavailableException org.zalando.nakadi.exceptions.ServiceUnavailableException used on opensource projects

Example 11 with ServiceUnavailableException

use of org.zalando.nakadi.exceptions.ServiceUnavailableException in project nakadi by zalando.

the class CursorOperationsController method getDistance.

@RequestMapping(path = "/event-types/{eventTypeName}/cursor-distances", method = RequestMethod.POST)
public ResponseEntity<?> getDistance(@PathVariable("eventTypeName") final String eventTypeName, @Valid @RequestBody final ValidListWrapper<CursorDistance> queries) throws InternalNakadiException, NoSuchEventTypeException {
    final EventType eventType = eventTypeRepository.findByName(eventTypeName);
    authorizationValidator.authorizeStreamRead(eventType);
    queries.getList().forEach(query -> {
        try {
            final NakadiCursor initialCursor = cursorConverter.convert(eventTypeName, query.getInitialCursor());
            final NakadiCursor finalCursor = cursorConverter.convert(eventTypeName, query.getFinalCursor());
            final Long distance = cursorOperationsService.calculateDistance(initialCursor, finalCursor);
            query.setDistance(distance);
        } catch (InternalNakadiException | ServiceUnavailableException e) {
            throw new MyNakadiRuntimeException1("problem calculating cursors distance", e);
        } catch (final NoSuchEventTypeException e) {
            throw new NotFoundException("event type not found", e);
        } catch (final InvalidCursorException e) {
            throw new CursorConversionException("problem converting cursors", e);
        }
    });
    return status(OK).body(queries.getList());
}

Example 12 with ServiceUnavailableException

use of org.zalando.nakadi.exceptions.ServiceUnavailableException in project nakadi by zalando.

the class EventStreamController method getStreamingStart.

@VisibleForTesting
List<NakadiCursor> getStreamingStart(final EventType eventType, final String cursorsStr) throws UnparseableCursorException, ServiceUnavailableException, InvalidCursorException, InternalNakadiException, NoSuchEventTypeException {
    List<Cursor> cursors = null;
    if (cursorsStr != null) {
        try {
            cursors = jsonMapper.readValue(cursorsStr, new TypeReference<ArrayList<Cursor>>() {
            });
        } catch (final IOException ex) {
            throw new UnparseableCursorException("incorrect syntax of X-nakadi-cursors header", ex, cursorsStr);
        }
        // Unfortunately, In order to have consistent exception checking, one can not just call validator
        for (final Cursor cursor : cursors) {
            if (null == cursor.getPartition()) {
                throw new InvalidCursorException(CursorError.NULL_PARTITION, cursor);
            } else if (null == cursor.getOffset()) {
                throw new InvalidCursorException(CursorError.NULL_OFFSET, cursor);
            }
        }
    }
    final Timeline latestTimeline = timelineService.getActiveTimeline(eventType);
    if (null != cursors) {
        if (cursors.isEmpty()) {
            throw new InvalidCursorException(CursorError.INVALID_FORMAT);
        }
        final List<NakadiCursor> result = new ArrayList<>();
        for (final Cursor c : cursors) {
            result.add(cursorConverter.convert(eventType.getName(), c));
        }
        for (final NakadiCursor c : result) {
            if (c.getTimeline().isDeleted()) {
                throw new InvalidCursorException(CursorError.UNAVAILABLE, c);
            }
        }
        final Map<Storage, List<NakadiCursor>> groupedCursors = result.stream().collect(Collectors.groupingBy(c -> c.getTimeline().getStorage()));
        for (final Map.Entry<Storage, List<NakadiCursor>> entry : groupedCursors.entrySet()) {
            timelineService.getTopicRepository(entry.getKey()).validateReadCursors(entry.getValue());
        }
        return result;
    } else {
        final TopicRepository latestTopicRepository = timelineService.getTopicRepository(latestTimeline);
        // if no cursors provided - read from the newest available events
        return latestTopicRepository.loadTopicStatistics(Collections.singletonList(latestTimeline)).stream().map(PartitionStatistics::getLast).collect(Collectors.toList());
    }
}

Example 13 with ServiceUnavailableException

use of org.zalando.nakadi.exceptions.ServiceUnavailableException in project nakadi by zalando.

the class CursorsControllerTest method whenServiceUnavailableExceptionThenServiceUnavailable.

@Test
public void whenServiceUnavailableExceptionThenServiceUnavailable() throws Exception {
    when(cursorsService.commitCursors(any(), any(), any())).thenThrow(new ServiceUnavailableException("dummy-message"));
    final Problem expectedProblem = Problem.valueOf(SERVICE_UNAVAILABLE, "dummy-message");
    checkForProblem(postCursors(DUMMY_CURSORS), expectedProblem);
}

Example 14 with ServiceUnavailableException

use of org.zalando.nakadi.exceptions.ServiceUnavailableException in project nakadi by zalando.

the class TimelineService method createTimeline.

public void createTimeline(final String eventTypeName, final String storageId) throws AccessDeniedException, TimelineException, TopicRepositoryException, InconsistentStateException, RepositoryProblemException, DbWriteOperationsBlockedException {
    if (featureToggleService.isFeatureEnabled(FeatureToggleService.Feature.DISABLE_DB_WRITE_OPERATIONS)) {
        throw new DbWriteOperationsBlockedException("Cannot create timeline: write operations on DB " + "are blocked by feature flag.");
    }
    try {
        final EventType eventType = eventTypeCache.getEventType(eventTypeName);
        if (!adminService.isAdmin(AuthorizationService.Operation.WRITE)) {
            final Resource resource = new EventTypeResource(eventTypeName, eventType.getAuthorization());
            throw new AccessDeniedException(AuthorizationService.Operation.ADMIN, resource);
        }
        final Storage storage = storageDbRepository.getStorage(storageId).orElseThrow(() -> new UnableProcessException("No storage with id: " + storageId));
        final Timeline activeTimeline = getActiveTimeline(eventType);
        final TopicRepository currentTopicRepo = topicRepositoryHolder.getTopicRepository(activeTimeline.getStorage());
        final TopicRepository nextTopicRepo = topicRepositoryHolder.getTopicRepository(storage);
        final List<PartitionStatistics> partitionStatistics = currentTopicRepo.loadTopicStatistics(Collections.singleton(activeTimeline));
        final String newTopic = nextTopicRepo.createTopic(partitionStatistics.size(), eventType.getOptions().getRetentionTime());
        final Timeline nextTimeline = Timeline.createTimeline(activeTimeline.getEventType(), activeTimeline.getOrder() + 1, storage, newTopic, new Date());
        switchTimelines(activeTimeline, nextTimeline);
    } catch (final TopicCreationException | ServiceUnavailableException | InternalNakadiException e) {
        throw new TimelineException("Internal service error", e);
    } catch (final NoSuchEventTypeException e) {
        throw new NotFoundException("EventType \"" + eventTypeName + "\" does not exist", e);
    }
}

Example 15 with ServiceUnavailableException

use of org.zalando.nakadi.exceptions.ServiceUnavailableException in project nakadi by zalando.

the class SubscriptionControllerTest method whenListSubscriptionsAndExceptionThenServiceUnavailable.

@Test
public void whenListSubscriptionsAndExceptionThenServiceUnavailable() throws Exception {
    when(subscriptionRepository.listSubscriptions(any(), any(), anyInt(), anyInt())).thenThrow(new ServiceUnavailableException("dummy message"));
    final Problem expectedProblem = Problem.valueOf(SERVICE_UNAVAILABLE, "dummy message");
    checkForProblem(getSubscriptions(), expectedProblem);
}