![]() Its Maven artifactId is cxf-rt-transports-http-hc5 and it serves as in-place replacement for cxf-rt-transports-http-hc (but the usage of those two transports together should be avoided). Since 3.4.6, CXF offers an HTTP client transport that is based on Apache HttpComponents HttpClient 5 library, that supports synchronous, asynchronous and reactive programming models. For example, the REST API specifies the use of PATCH for some cases, but HttpURLConnection rejects PATCH. And if TLSClientParameters sets an SSLSocketFactory, as SocketFactory class and SocketFactory#createSocket methods in particular are inherently blocking and sockets instantiated in such a way cannot be used for asynchronous, so this lead to use the HttpURLConnection based transport.Īnother reason to use the asynchronous transport is to use HTTP methods that HttpURLConnection does not support. If "true", the HttpAsyncClient will be used even for synchronous calls, if "false", asynchronous calls will rely on the traditional method of using HTTPURLConnection along with a work queue to mimic the asynchronicity. However, using a contextual property of "" and set to true/false, you can control whether the async or blocking version is used. This allows a good balance of performance for the common synchronous cases with scalability for the asynchronous cases. All Implemented Interfaces: Serializable. However, the non-blocking model does not perform quite as well as the blocking model for pure synchronous request/response transactions.īy default, if the cxf-rt-transports-http-hc module is found on the classpath, CXF will use the HttpAsyncClient based implementation for any Async calls, but will continue to use the HttpURLConnection based transport for synchronous calls. It also allows greater control over things like Keep-Alive handling which is very difficult or impossible with the HttpURLConnection based transport. This allows many more requests to be outstanding without consuming extra background threads. The HttpAsyncClient library uses a non-blocking IO model. Its Maven artifactId is cxf-rt-transports-http-hc. ![]() Apache HttpComponents 4.xĬXF also has an HTTP client transport that is based on the Apache HTTP Components HttpAsyncClient library. With the HttpURLConnection based transport, CXF was forced to consume a background thread for each outstanding request. These methods can take an AsyncHandler object and return a polling Future object so applications do not have to wait for the response. From a pure performance standpoint, this model generally performs very well, but it does have problems scaling when many requests need to be executed simultaneously.Īlso, the JAX-WS specification allows for generation of asynchronous methods on generated proxies as well as using asynchronous methods on the Dispatch objects. The HttpURLConnection object uses a blocking model for all IO operations which requires a per-thread execution model. You can simply block the calling thread to get the response.By default, CXF uses a transport based on the in-JDK HttpURLConnection object to perform HTTP requests. Use the addBodyPart method to add a multipart part to the request.ĭealing with Responses Blocking on the FutureĮxecute methods return a. Have a look at FeedableBodyGenerator if you're looking for a way to pass requests chunks on the fly. The payload of the requests is quite small (<5KB) The endpoints I hit are around 20 in number. The goal is to be able to handle more outbound connections (in the near future). .generator.BodyGeneratorīodyGenerator is a generic abstraction that let you create request bodies on the fly. I am trying to switch my application to the async version from apache http-components client.Use the setBody method to add a body to the request. executeRequest( request) Setting Request Body build() įuture whenResponse = asyncHttpClient. bound Future whenResponse = asyncHttpClient.
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