Examples with INTERNAL_SERVER_ERROR javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR used on opensource projects

Example 1 with INTERNAL_SERVER_ERROR

use of javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR 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 2 with INTERNAL_SERVER_ERROR

use of javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR in project component-runtime by Talend.

the class DocumentationResource method getDocumentation.

/**
 * Returns an asciidoctor version of the documentation for the component represented by its identifier `id`.
 *
 * Format can be either asciidoc or html - if not it will fallback on asciidoc - and if html is selected you get
 * a partial document.
 *
 * IMPORTANT: it is recommended to use asciidoc format and handle the conversion on your side if you can,
 * the html flavor handles a limited set of the asciidoc syntax only like plain arrays, paragraph and titles.
 *
 * The documentation will likely be the family documentation but you can use anchors to access a particular
 * component (_componentname_inlowercase).
 *
 * @param id the component identifier.
 * @param language the expected language for the documentation (default to en if not found).
 * @param format the expected format (asciidoc or html).
 * @return the documentation for that component.
 */
@GET
@Path("component/{id}")
@Produces(MediaType.APPLICATION_JSON)
public DocumentationContent getDocumentation(@PathParam("id") final String id, @QueryParam("language") @DefaultValue("en") final String language, @QueryParam("format") @DefaultValue("asciidoc") final String format) {
    final Locale locale = localeMapper.mapLocale(language);
    final Container container = ofNullable(componentDao.findById(id)).map(meta -> manager.findPlugin(meta.getParent().getPlugin()).orElseThrow(() -> new WebApplicationException(Response.status(NOT_FOUND).entity(new ErrorPayload(ErrorDictionary.PLUGIN_MISSING, "No plugin '" + meta.getParent().getPlugin() + "'")).build()))).orElseThrow(() -> new WebApplicationException(Response.status(NOT_FOUND).entity(new ErrorPayload(ErrorDictionary.COMPONENT_MISSING, "No component '" + id + "'")).build()));
    // rendering to html can be slow so do it lazily and once
    DocumentationCache cache = container.get(DocumentationCache.class);
    if (cache == null) {
        synchronized (container) {
            cache = container.get(DocumentationCache.class);
            if (cache == null) {
                cache = new DocumentationCache();
                container.set(DocumentationCache.class, cache);
            }
        }
    }
    return cache.documentations.computeIfAbsent(new DocKey(id, language, format), key -> {
        // todo: handle i18n properly, for now just fallback on not suffixed version and assume the dev put it
        // in the comp
        final String content = Stream.of("documentation_" + locale.getLanguage() + ".adoc", "documentation_" + language + ".adoc", "documentation.adoc").map(name -> container.getLoader().getResource("TALEND-INF/" + name)).filter(Objects::nonNull).findFirst().map(url -> {
            try (final BufferedReader stream = new BufferedReader(new InputStreamReader(url.openStream(), StandardCharsets.UTF_8))) {
                return stream.lines().collect(joining("\n"));
            } catch (final IOException e) {
                throw new WebApplicationException(Response.status(INTERNAL_SERVER_ERROR).entity(new ErrorPayload(ErrorDictionary.UNEXPECTED, e.getMessage())).build());
            }
        }).map(value -> {
            switch(format) {
                case "html":
                case "html5":
                    return adoc.toHtml(value);
                case "asciidoc":
                case "adoc":
                default:
                    return value;
            }
        }).orElseThrow(() -> new WebApplicationException(Response.status(NOT_FOUND).entity(new ErrorPayload(ErrorDictionary.COMPONENT_MISSING, "No component '" + id + "'")).build()));
        return new DocumentationContent(format, content);
    });
}