Examples with InputEventStream software.amazon.awssdk.services.json.model.InputEventStream used on opensource projects

Example 1 with InputEventStream

use of software.amazon.awssdk.services.json.model.InputEventStream in project aws-sdk-java-v2 by aws.

the class DefaultJsonAsyncClient method eventStreamOperation.

/**
 * Invokes the EventStreamOperation operation asynchronously.
 *
 * @param eventStreamOperationRequest
 * @return A Java Future containing the result of the EventStreamOperation operation returned by the service.<br/>
 *         The CompletableFuture returned by this method can be completed exceptionally with the following
 *         exceptions.
 *         <ul>
 *         <li>SdkException Base class for all exceptions that can be thrown by the SDK (both service and client).
 *         Can be used for catch all scenarios.</li>
 *         <li>SdkClientException If any client side error occurs such as an IO related failure, failure to get
 *         credentials, etc.</li>
 *         <li>JsonException Base class for all service exceptions. Unknown exceptions will be thrown as an instance
 *         of this type.</li>
 *         </ul>
 * @sample JsonAsyncClient.EventStreamOperation
 * @see <a href="https://docs.aws.amazon.com/goto/WebAPI/json-service-2010-05-08/EventStreamOperation"
 *      target="_top">AWS API Documentation</a>
 */
@Override
public CompletableFuture<Void> eventStreamOperation(EventStreamOperationRequest eventStreamOperationRequest, Publisher<InputEventStream> requestStream, EventStreamOperationResponseHandler asyncResponseHandler) {
    List<MetricPublisher> metricPublishers = resolveMetricPublishers(clientConfiguration, eventStreamOperationRequest.overrideConfiguration().orElse(null));
    MetricCollector apiCallMetricCollector = metricPublishers.isEmpty() ? NoOpMetricCollector.create() : MetricCollector.create("ApiCall");
    try {
        apiCallMetricCollector.reportMetric(CoreMetric.SERVICE_ID, "Json Service");
        apiCallMetricCollector.reportMetric(CoreMetric.OPERATION_NAME, "EventStreamOperation");
        eventStreamOperationRequest = applySignerOverride(eventStreamOperationRequest, EventStreamAws4Signer.create());
        JsonOperationMetadata operationMetadata = JsonOperationMetadata.builder().hasStreamingSuccessResponse(false).isPayloadJson(true).build();
        HttpResponseHandler<EventStreamOperationResponse> responseHandler = new AttachHttpMetadataResponseHandler(protocolFactory.createResponseHandler(operationMetadata, EventStreamOperationResponse::builder));
        HttpResponseHandler<SdkResponse> voidResponseHandler = protocolFactory.createResponseHandler(JsonOperationMetadata.builder().isPayloadJson(false).hasStreamingSuccessResponse(true).build(), VoidSdkResponse::builder);
        HttpResponseHandler<? extends EventStream> eventResponseHandler = protocolFactory.createResponseHandler(JsonOperationMetadata.builder().isPayloadJson(true).hasStreamingSuccessResponse(false).build(), EventStreamTaggedUnionPojoSupplier.builder().putSdkPojoSupplier("EventOne", EventStream::eventOneBuilder).putSdkPojoSupplier("EventTheSecond", EventStream::eventTheSecondBuilder).putSdkPojoSupplier("secondEventOne", EventStream::secondEventOneBuilder).putSdkPojoSupplier("eventThree", EventStream::eventThreeBuilder).defaultSdkPojoSupplier(() -> new SdkPojoBuilder(EventStream.UNKNOWN)).build());
        HttpResponseHandler<AwsServiceException> errorResponseHandler = createErrorResponseHandler(protocolFactory, operationMetadata);
        EventStreamTaggedUnionJsonMarshaller eventMarshaller = EventStreamTaggedUnionJsonMarshaller.builder().putMarshaller(DefaultInputEvent.class, new InputEventMarshaller(protocolFactory)).build();
        SdkPublisher<InputEventStream> eventPublisher = SdkPublisher.adapt(requestStream);
        Publisher<ByteBuffer> adapted = eventPublisher.map(event -> eventMarshaller.marshall(event)).map(AwsClientHandlerUtils::encodeEventStreamRequestToByteBuffer);
        CompletableFuture<Void> future = new CompletableFuture<>();
        EventStreamAsyncResponseTransformer<EventStreamOperationResponse, EventStream> asyncResponseTransformer = EventStreamAsyncResponseTransformer.<EventStreamOperationResponse, EventStream>builder().eventStreamResponseHandler(asyncResponseHandler).eventResponseHandler(eventResponseHandler).initialResponseHandler(responseHandler).exceptionResponseHandler(errorResponseHandler).future(future).executor(executor).serviceName(serviceName()).build();
        CompletableFuture<Void> executeFuture = clientHandler.execute(new ClientExecutionParams<EventStreamOperationRequest, SdkResponse>().withOperationName("EventStreamOperation").withMarshaller(new EventStreamOperationRequestMarshaller(protocolFactory)).withAsyncRequestBody(AsyncRequestBody.fromPublisher(adapted)).withFullDuplex(true).withInitialRequestEvent(true).withResponseHandler(voidResponseHandler).withErrorResponseHandler(errorResponseHandler).withMetricCollector(apiCallMetricCollector).withInput(eventStreamOperationRequest), asyncResponseTransformer);
        CompletableFuture<Void> whenCompleted = executeFuture.whenComplete((r, e) -> {
            if (e != null) {
                try {
                    asyncResponseHandler.exceptionOccurred(e);
                } finally {
                    future.completeExceptionally(e);
                }
            }
            metricPublishers.forEach(p -> p.publish(apiCallMetricCollector.collect()));
        });
        executeFuture = CompletableFutureUtils.forwardExceptionTo(whenCompleted, executeFuture);
        return CompletableFutureUtils.forwardExceptionTo(future, executeFuture);
    } catch (Throwable t) {
        runAndLogError(log, "Exception thrown in exceptionOccurred callback, ignoring", () -> asyncResponseHandler.exceptionOccurred(t));
        metricPublishers.forEach(p -> p.publish(apiCallMetricCollector.collect()));
        return CompletableFutureUtils.failedFuture(t);
    }
}