Example usage for org.springframework.web.client AsyncRestTemplate exchange

Introduction

In this page you can find the example usage for org.springframework.web.client AsyncRestTemplate exchange.

Prototype

@Override
    public <T> ListenableFuture<ResponseEntity<T>> exchange(URI url, HttpMethod method,
            @Nullable HttpEntity<?> requestEntity, ParameterizedTypeReference<T> responseType)
            throws RestClientException 

Source Link

Usage

From source file:NNIOEngine.java

@Override
public ResponseEntity<String> submit(JCurlRequestOptions requestOptions) throws Exception {
    int ioWorkerCount = Runtime.getRuntime().availableProcessors() * 2;
    NioEventLoopGroup eventLoopGroup = new NioEventLoopGroup(ioWorkerCount);

    try {/*from  w  ww  .j  a  v a2  s  .  co  m*/
        final Netty4ClientHttpRequestFactory netty4ClientHttpRequestFactory = new Netty4ClientHttpRequestFactory(
                eventLoopGroup);
        netty4ClientHttpRequestFactory.setConnectTimeout(2000);
        netty4ClientHttpRequestFactory.setReadTimeout(2000);
        /*
                    SslContext sslContext = SslContextBuilder
        .forClient()
        .sslProvider(SslProvider.JDK)
        .build()
                    ;
        */
        if (requestOptions.getUrl().toLowerCase().startsWith("https://")) {
            SslContext sslContext = new DefaultClientSslContext();
            netty4ClientHttpRequestFactory.setSslContext(sslContext);
        }
        netty4ClientHttpRequestFactory.afterPropertiesSet();

        ResponseEntity<String> stringResponseEntity = null;
        for (int i = 0; i < requestOptions.getCount(); i++) {
            final HttpHeaders headers = new HttpHeaders();
            for (Map.Entry<String, String> e : requestOptions.getHeaderMap().entrySet()) {
                headers.put(e.getKey(), Collections.singletonList(e.getValue()));
            }

            final HttpEntity<Void> requestEntity = new HttpEntity<>(headers);

            AsyncRestTemplate template = new AsyncRestTemplate(netty4ClientHttpRequestFactory);
            final ListenableFuture<ResponseEntity<String>> exchange = template.exchange(requestOptions.getUrl(),
                    HttpMethod.GET, requestEntity, String.class);
            stringResponseEntity = exchange.get();
            System.out.println(stringResponseEntity.getBody());
        }
        return stringResponseEntity;
    } finally {
        eventLoopGroup.shutdownGracefully(100, 500, TimeUnit.MILLISECONDS);
    }
}

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From source file:HCNIOEngine.java

@Override
public ResponseEntity<String> submit(JCurlRequestOptions requestOptions) throws Exception {
    ResponseEntity<String> stringResponseEntity = null;
    try (CloseableHttpAsyncClient hc = createCloseableHttpAsyncClient()) {
        for (int i = 0; i < requestOptions.getCount(); i++) {
            final HttpHeaders headers = new HttpHeaders();
            for (Map.Entry<String, String> e : requestOptions.getHeaderMap().entrySet()) {
                headers.put(e.getKey(), Collections.singletonList(e.getValue()));
            }// w  w  w.  j a  v  a  2  s.  c o m

            final HttpEntity<Void> requestEntity = new HttpEntity<>(headers);

            AsyncRestTemplate template = new AsyncRestTemplate(
                    new HttpComponentsAsyncClientHttpRequestFactory(hc));
            final ListenableFuture<ResponseEntity<String>> exchange = template.exchange(requestOptions.getUrl(),
                    HttpMethod.GET, requestEntity, String.class);
            stringResponseEntity = exchange.get();
            System.out.println(stringResponseEntity.getBody());

        }
        return stringResponseEntity;
    }
}

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