Examples with RestEventStreamAsyncResponseTransformer software.amazon.awssdk.awscore.eventstream.RestEventStreamAsyncResponseTransformer used on opensource projects

Example 1 with RestEventStreamAsyncResponseTransformer

use of software.amazon.awssdk.awscore.eventstream.RestEventStreamAsyncResponseTransformer in project aws-sdk-java-v2 by aws.

the class DefaultXmlAsyncClient 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>XmlException Base class for all service exceptions. Unknown exceptions will be thrown as an instance
 *         of this type.</li>
 *         </ul>
 * @sample XmlAsyncClient.EventStreamOperation
 * @see <a href="https://docs.aws.amazon.com/goto/WebAPI/xml-service-2010-05-08/EventStreamOperation"
 *      target="_top">AWS API Documentation</a>
 */
@Override
public CompletableFuture<Void> eventStreamOperation(EventStreamOperationRequest eventStreamOperationRequest, 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, "Xml Service");
        apiCallMetricCollector.reportMetric(CoreMetric.OPERATION_NAME, "EventStreamOperation");
        HttpResponseHandler<EventStreamOperationResponse> responseHandler = protocolFactory.createResponseHandler(EventStreamOperationResponse::builder, XmlOperationMetadata.builder().hasStreamingSuccessResponse(true).build());
        HttpResponseHandler<AwsServiceException> errorResponseHandler = protocolFactory.createErrorResponseHandler();
        HttpResponseHandler<? extends EventStream> eventResponseHandler = protocolFactory.createResponseHandler(EventStreamTaggedUnionPojoSupplier.builder().putSdkPojoSupplier("EventPayloadEvent", EventStream::eventPayloadEventBuilder).putSdkPojoSupplier("NonEventPayloadEvent", EventStream::nonEventPayloadEventBuilder).putSdkPojoSupplier("SecondEventPayloadEvent", EventStream::secondEventPayloadEventBuilder).defaultSdkPojoSupplier(() -> new SdkPojoBuilder(EventStream.UNKNOWN)).build(), XmlOperationMetadata.builder().hasStreamingSuccessResponse(false).build());
        CompletableFuture<Void> eventStreamTransformFuture = new CompletableFuture<>();
        EventStreamAsyncResponseTransformer<EventStreamOperationResponse, EventStream> asyncResponseTransformer = EventStreamAsyncResponseTransformer.<EventStreamOperationResponse, EventStream>builder().eventStreamResponseHandler(asyncResponseHandler).eventResponseHandler(eventResponseHandler).initialResponseHandler(responseHandler).exceptionResponseHandler(errorResponseHandler).future(eventStreamTransformFuture).executor(executor).serviceName(serviceName()).build();
        RestEventStreamAsyncResponseTransformer<EventStreamOperationResponse, EventStream> restAsyncResponseTransformer = RestEventStreamAsyncResponseTransformer.<EventStreamOperationResponse, EventStream>builder().eventStreamAsyncResponseTransformer(asyncResponseTransformer).eventStreamResponseHandler(asyncResponseHandler).build();
        CompletableFuture<Void> executeFuture = clientHandler.execute(new ClientExecutionParams<EventStreamOperationRequest, EventStreamOperationResponse>().withOperationName("EventStreamOperation").withMarshaller(new EventStreamOperationRequestMarshaller(protocolFactory)).withResponseHandler(responseHandler).withErrorResponseHandler(errorResponseHandler).withMetricCollector(apiCallMetricCollector).withInput(eventStreamOperationRequest), restAsyncResponseTransformer);
        CompletableFuture<Void> whenCompleteFuture = null;
        whenCompleteFuture = executeFuture.whenComplete((r, e) -> {
            if (e != null) {
                runAndLogError(log, "Exception thrown in exceptionOccurred callback, ignoring", () -> asyncResponseHandler.exceptionOccurred(e));
                eventStreamTransformFuture.completeExceptionally(e);
            }
            metricPublishers.forEach(p -> p.publish(apiCallMetricCollector.collect()));
        });
        CompletableFutureUtils.forwardExceptionTo(whenCompleteFuture, executeFuture);
        return CompletableFutureUtils.forwardExceptionTo(eventStreamTransformFuture, 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);
    }
}

Example 2 with RestEventStreamAsyncResponseTransformer

use of software.amazon.awssdk.awscore.eventstream.RestEventStreamAsyncResponseTransformer in project aws-sdk-java-v2 by aws.

the class XmlProtocolSpec method eventStreamResponseTransformers.

private CodeBlock eventStreamResponseTransformers(OperationModel opModel, String eventTransformerFutureName) {
    ShapeModel shapeModel = EventStreamUtils.getEventStreamInResponse(opModel.getOutputShape());
    ClassName pojoResponseType = poetExtensions.getModelClass(opModel.getReturnType().getReturnType());
    ClassName eventStreamBaseClass = poetExtensions.getModelClassFromShape(shapeModel);
    CodeBlock.Builder builder = CodeBlock.builder();
    ParameterizedTypeName transformerType = ParameterizedTypeName.get(ClassName.get(EventStreamAsyncResponseTransformer.class), pojoResponseType, eventStreamBaseClass);
    builder.addStatement("$1T<$2T> $3N = new $1T<>()", ClassName.get(CompletableFuture.class), ClassName.get(Void.class), eventTransformerFutureName).add("$T asyncResponseTransformer = $T.<$T, $T>builder()\n", transformerType, ClassName.get(EventStreamAsyncResponseTransformer.class), pojoResponseType, eventStreamBaseClass).add(".eventStreamResponseHandler(asyncResponseHandler)\n").add(".eventResponseHandler(eventResponseHandler)\n").add(".initialResponseHandler(responseHandler)\n").add(".exceptionResponseHandler(errorResponseHandler)\n").add(".future($N)\n", eventTransformerFutureName).add(".executor(executor)\n").add(".serviceName(serviceName())\n").addStatement(".build()");
    ParameterizedTypeName restTransformType = ParameterizedTypeName.get(ClassName.get(RestEventStreamAsyncResponseTransformer.class), pojoResponseType, eventStreamBaseClass);
    // Wrap the event transformer with this so that the caller's response handler's onResponse() method is invoked. See
    // docs for RestEventStreamAsyncResponseTransformer for more info on why it's needed
    builder.addStatement("$T restAsyncResponseTransformer = $T.<$T, $T>builder()\n" + ".eventStreamAsyncResponseTransformer(asyncResponseTransformer)\n" + ".eventStreamResponseHandler(asyncResponseHandler)\n" + ".build()", restTransformType, RestEventStreamAsyncResponseTransformer.class, pojoResponseType, eventStreamBaseClass);
    return builder.build();
}