Examples with JsonCodec com.facebook.airlift.json.JsonCodec used on opensource projects

Example 11 with JsonCodec

use of com.facebook.airlift.json.JsonCodec in project presto by prestodb.

the class TaskInfoFetcher method sendNextRequest.

private synchronized void sendNextRequest() {
    TaskInfo taskInfo = getTaskInfo();
    TaskStatus taskStatus = taskInfo.getTaskStatus();
    if (!running) {
        return;
    }
    // we already have the final task info
    if (isDone(getTaskInfo())) {
        stop();
        return;
    }
    // if we have an outstanding request
    if (future != null && !future.isDone()) {
        return;
    }
    // if throttled due to error, asynchronously wait for timeout and try again
    ListenableFuture<?> errorRateLimit = errorTracker.acquireRequestPermit();
    if (!errorRateLimit.isDone()) {
        errorRateLimit.addListener(this::sendNextRequest, executor);
        return;
    }
    MetadataUpdates metadataUpdateRequests = taskInfo.getMetadataUpdates();
    if (!metadataUpdateRequests.getMetadataUpdates().isEmpty()) {
        scheduleMetadataUpdates(metadataUpdateRequests);
    }
    HttpUriBuilder httpUriBuilder = uriBuilderFrom(taskStatus.getSelf());
    URI uri = summarizeTaskInfo ? httpUriBuilder.addParameter("summarize").build() : httpUriBuilder.build();
    Request.Builder uriBuilder = setContentTypeHeaders(isBinaryTransportEnabled, prepareGet());
    if (taskInfoRefreshMaxWait.toMillis() != 0L) {
        uriBuilder.setHeader(PRESTO_CURRENT_STATE, taskStatus.getState().toString()).setHeader(PRESTO_MAX_WAIT, taskInfoRefreshMaxWait.toString());
    }
    Request request = uriBuilder.setUri(uri).build();
    ResponseHandler responseHandler;
    if (isBinaryTransportEnabled) {
        responseHandler = createFullSmileResponseHandler((SmileCodec<TaskInfo>) taskInfoCodec);
    } else {
        responseHandler = createAdaptingJsonResponseHandler((JsonCodec<TaskInfo>) taskInfoCodec);
    }
    errorTracker.startRequest();
    future = httpClient.executeAsync(request, responseHandler);
    currentRequestStartNanos.set(System.nanoTime());
    Futures.addCallback(future, new SimpleHttpResponseHandler<>(this, request.getUri(), stats.getHttpResponseStats(), REMOTE_TASK_ERROR), executor);
}

Example 12 with JsonCodec

use of com.facebook.airlift.json.JsonCodec in project presto by prestodb.

the class TestRowExpressionSerde method getJsonCodec.

private JsonCodec<RowExpression> getJsonCodec() throws Exception {
    Module module = binder -> {
        binder.install(new JsonModule());
        binder.install(new HandleJsonModule());
        configBinder(binder).bindConfig(FeaturesConfig.class);
        FunctionAndTypeManager functionAndTypeManager = createTestFunctionAndTypeManager();
        binder.bind(TypeManager.class).toInstance(functionAndTypeManager);
        jsonBinder(binder).addDeserializerBinding(Type.class).to(TypeDeserializer.class);
        newSetBinder(binder, Type.class);
        binder.bind(BlockEncodingSerde.class).to(BlockEncodingManager.class).in(Scopes.SINGLETON);
        newSetBinder(binder, BlockEncoding.class);
        jsonBinder(binder).addSerializerBinding(Block.class).to(BlockJsonSerde.Serializer.class);
        jsonBinder(binder).addDeserializerBinding(Block.class).to(BlockJsonSerde.Deserializer.class);
        jsonCodecBinder(binder).bindJsonCodec(RowExpression.class);
    };
    Bootstrap app = new Bootstrap(ImmutableList.of(module));
    Injector injector = app.doNotInitializeLogging().quiet().initialize();
    return injector.getInstance(new Key<JsonCodec<RowExpression>>() {
    });
}