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

Example 6 with NoSuchEventTypeException

use of org.zalando.nakadi.exceptions.NoSuchEventTypeException 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 7 with NoSuchEventTypeException

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

the class EventPublishingController method postEventInternal.

private ResponseEntity postEventInternal(final String eventTypeName, final String eventsAsString, final NativeWebRequest nativeWebRequest, final EventTypeMetrics eventTypeMetrics, final Client client) throws AccessDeniedException, ServiceTemporarilyUnavailableException {
    final long startingNanos = System.nanoTime();
    try {
        final EventPublishResult result = publisher.publish(eventsAsString, eventTypeName);
        final int eventCount = result.getResponses().size();
        final int totalSizeBytes = eventsAsString.getBytes(Charsets.UTF_8).length;
        reportMetrics(eventTypeMetrics, result, totalSizeBytes, eventCount);
        reportSLOs(startingNanos, totalSizeBytes, eventCount, result, eventTypeName, client);
        return response(result);
    } catch (final JSONException e) {
        LOG.debug("Problem parsing event", e);
        return processJSONException(e, nativeWebRequest);
    } catch (final NoSuchEventTypeException e) {
        LOG.debug("Event type not found.", e);
        return create(e.asProblem(), nativeWebRequest);
    } catch (final NakadiException e) {
        LOG.debug("Failed to publish batch", e);
        return create(e.asProblem(), nativeWebRequest);
    } finally {
        eventTypeMetrics.updateTiming(startingNanos, System.nanoTime());
    }
}

Example 8 with NoSuchEventTypeException

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

the class EventStreamController method streamEvents.

@RequestMapping(value = "/event-types/{name}/events", method = RequestMethod.GET)
public StreamingResponseBody streamEvents(@PathVariable("name") final String eventTypeName, @Nullable @RequestParam(value = "batch_limit", required = false) final Integer batchLimit, @Nullable @RequestParam(value = "stream_limit", required = false) final Integer streamLimit, @Nullable @RequestParam(value = "batch_flush_timeout", required = false) final Integer batchTimeout, @Nullable @RequestParam(value = "stream_timeout", required = false) final Integer streamTimeout, @Nullable @RequestParam(value = "stream_keep_alive_limit", required = false) final Integer streamKeepAliveLimit, @Nullable @RequestHeader(name = "X-nakadi-cursors", required = false) final String cursorsStr, final HttpServletRequest request, final HttpServletResponse response, final Client client) {
    final String flowId = FlowIdUtils.peek();
    return outputStream -> {
        FlowIdUtils.push(flowId);
        if (blacklistService.isConsumptionBlocked(eventTypeName, client.getClientId())) {
            writeProblemResponse(response, outputStream, Problem.valueOf(Response.Status.FORBIDDEN, "Application or event type is blocked"));
            return;
        }
        final AtomicBoolean connectionReady = closedConnectionsCrutch.listenForConnectionClose(request);
        Counter consumerCounter = null;
        EventStream eventStream = null;
        List<ConnectionSlot> connectionSlots = ImmutableList.of();
        final AtomicBoolean needCheckAuthorization = new AtomicBoolean(false);
        LOG.info("[X-NAKADI-CURSORS] \"{}\" {}", eventTypeName, Optional.ofNullable(cursorsStr).orElse("-"));
        try (Closeable ignore = eventTypeChangeListener.registerListener(et -> needCheckAuthorization.set(true), Collections.singletonList(eventTypeName))) {
            final EventType eventType = eventTypeRepository.findByName(eventTypeName);
            authorizeStreamRead(eventTypeName);
            // validate parameters
            final EventStreamConfig streamConfig = EventStreamConfig.builder().withBatchLimit(batchLimit).withStreamLimit(streamLimit).withBatchTimeout(batchTimeout).withStreamTimeout(streamTimeout).withStreamKeepAliveLimit(streamKeepAliveLimit).withEtName(eventTypeName).withConsumingClient(client).withCursors(getStreamingStart(eventType, cursorsStr)).withMaxMemoryUsageBytes(maxMemoryUsageBytes).build();
            // acquire connection slots to limit the number of simultaneous connections from one client
            if (featureToggleService.isFeatureEnabled(LIMIT_CONSUMERS_NUMBER)) {
                final List<String> partitions = streamConfig.getCursors().stream().map(NakadiCursor::getPartition).collect(Collectors.toList());
                connectionSlots = consumerLimitingService.acquireConnectionSlots(client.getClientId(), eventTypeName, partitions);
            }
            consumerCounter = metricRegistry.counter(metricNameFor(eventTypeName, CONSUMERS_COUNT_METRIC_NAME));
            consumerCounter.inc();
            final String kafkaQuotaClientId = getKafkaQuotaClientId(eventTypeName, client);
            response.setStatus(HttpStatus.OK.value());
            response.setHeader("Warning", "299 - nakadi - the Low-level API is deprecated and will " + "be removed from a future release. Please consider migrating to the Subscriptions API.");
            response.setContentType("application/x-json-stream");
            final EventConsumer eventConsumer = timelineService.createEventConsumer(kafkaQuotaClientId, streamConfig.getCursors());
            final String bytesFlushedMetricName = MetricUtils.metricNameForLoLAStream(client.getClientId(), eventTypeName);
            final Meter bytesFlushedMeter = this.streamMetrics.meter(bytesFlushedMetricName);
            eventStream = eventStreamFactory.createEventStream(outputStream, eventConsumer, streamConfig, bytesFlushedMeter);
            // Flush status code to client
            outputStream.flush();
            eventStream.streamEvents(connectionReady, () -> {
                if (needCheckAuthorization.getAndSet(false)) {
                    authorizeStreamRead(eventTypeName);
                }
            });
        } catch (final UnparseableCursorException e) {
            LOG.debug("Incorrect syntax of X-nakadi-cursors header: {}. Respond with BAD_REQUEST.", e.getCursors(), e);
            writeProblemResponse(response, outputStream, BAD_REQUEST, e.getMessage());
        } catch (final NoSuchEventTypeException e) {
            writeProblemResponse(response, outputStream, NOT_FOUND, "topic not found");
        } catch (final NoConnectionSlotsException e) {
            LOG.debug("Connection creation failed due to exceeding max connection count");
            writeProblemResponse(response, outputStream, e.asProblem());
        } catch (final NakadiException e) {
            LOG.error("Error while trying to stream events.", e);
            writeProblemResponse(response, outputStream, e.asProblem());
        } catch (final InvalidCursorException e) {
            writeProblemResponse(response, outputStream, PRECONDITION_FAILED, e.getMessage());
        } catch (final AccessDeniedException e) {
            writeProblemResponse(response, outputStream, FORBIDDEN, e.explain());
        } catch (final Exception e) {
            LOG.error("Error while trying to stream events. Respond with INTERNAL_SERVER_ERROR.", e);
            writeProblemResponse(response, outputStream, INTERNAL_SERVER_ERROR, e.getMessage());
        } finally {
            connectionReady.set(false);
            consumerLimitingService.releaseConnectionSlots(connectionSlots);
            if (consumerCounter != null) {
                consumerCounter.dec();
            }
            if (eventStream != null) {
                eventStream.close();
            }
            try {
                outputStream.flush();
            } finally {
                outputStream.close();
            }
        }
    };
}

Example 9 with NoSuchEventTypeException

use of org.zalando.nakadi.exceptions.NoSuchEventTypeException 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 10 with NoSuchEventTypeException

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

the class PartitionsController method listPartitions.

@RequestMapping(value = "/event-types/{name}/partitions", method = RequestMethod.GET)
public ResponseEntity<?> listPartitions(@PathVariable("name") final String eventTypeName, final NativeWebRequest request) {
    LOG.trace("Get partitions endpoint for event-type '{}' is called", eventTypeName);
    try {
        final EventType eventType = eventTypeRepository.findByName(eventTypeName);
        authorizationValidator.authorizeStreamRead(eventType);
        final List<Timeline> timelines = timelineService.getActiveTimelinesOrdered(eventTypeName);
        final List<PartitionStatistics> firstStats = timelineService.getTopicRepository(timelines.get(0)).loadTopicStatistics(Collections.singletonList(timelines.get(0)));
        final List<PartitionStatistics> lastStats;
        if (timelines.size() == 1) {
            lastStats = firstStats;
        } else {
            lastStats = timelineService.getTopicRepository(timelines.get(timelines.size() - 1)).loadTopicStatistics(Collections.singletonList(timelines.get(timelines.size() - 1)));
        }
        final List<EventTypePartitionView> result = firstStats.stream().map(first -> {
            final PartitionStatistics last = lastStats.stream().filter(l -> l.getPartition().equals(first.getPartition())).findAny().get();
            return new EventTypePartitionView(eventTypeName, first.getPartition(), cursorConverter.convert(first.getFirst()).getOffset(), cursorConverter.convert(last.getLast()).getOffset());
        }).collect(Collectors.toList());
        return ok().body(result);
    } catch (final NoSuchEventTypeException e) {
        return create(Problem.valueOf(NOT_FOUND, "topic not found"), request);
    } catch (final NakadiException e) {
        LOG.error("Could not list partitions. Respond with SERVICE_UNAVAILABLE.", e);
        return create(e.asProblem(), request);
    }
}