/**
* Create a new instance of the {@code AsyncRestTemplate} using the given {@link
* AsyncTaskExecutor}.
*
* <p>This constructor uses a {@link SimpleClientHttpRequestFactory} in combination with the given
* {@code AsyncTaskExecutor} for asynchronous execution.
*/
public AsyncRestTemplate(AsyncListenableTaskExecutor taskExecutor) {
Assert.notNull(taskExecutor, "AsyncTaskExecutor must not be null");
SimpleClientHttpRequestFactory requestFactory = new SimpleClientHttpRequestFactory();
requestFactory.setTaskExecutor(taskExecutor);
this.syncTemplate = new RestTemplate(requestFactory);
setAsyncRequestFactory(requestFactory);
}
@Bean
@Qualifier("dnsClientHttpRequestFactory")
public SimpleClientHttpRequestFactory dnsClientHttpRequestFactory() {
SimpleClientHttpRequestFactory clientHttpRequestFactory = new SimpleClientHttpRequestFactory();
// Set timeouts (1 second to connect, unlimited - for response)
clientHttpRequestFactory.setConnectTimeout(500);
clientHttpRequestFactory.setReadTimeout(1000);
// Setting the ThreadPoolTaskExecutor for the Async calls
ThreadPoolTaskExecutor pool = new ThreadPoolTaskExecutor();
pool.setCorePoolSize(5);
pool.setMaxPoolSize(10);
pool.setWaitForTasksToCompleteOnShutdown(true);
pool.initialize();
// Setting the TaskExecutor to the ThreadPoolTaskExecutor
clientHttpRequestFactory.setTaskExecutor(pool);
return clientHttpRequestFactory;
}