I'm using org.apache.hc.client5.http.impl.async.HttpAsyncClients.create() to create org.apache.hc.client5.http.impl.async.CloseableHttpAsyncClient for my HTTP/2 requests. I'm looking for some functionality to abort the request after reading some amount of data from the socket channel.
i tried with the cancel(mayInterruptIfRunning) method from the Future instance. But after abort it i can't get the response headers and the downloaded content.
Future<SimpleHttpResponse> future = null;
CloseableHttpAsyncClient httpClient = null;
try {
httpClient = httpAsyncClientBuilder.build();
httpClient.start();
future = httpClient.execute(target, asyncRequestProducer, SimpleResponseConsumer.create(), null, this.httpClientContext, this);
future.get(10, TimeUnit.SECONDS);
} catch (Exception ex) {
ex.printStackTrace();
} finally {
httpClient.close(CloseMode.GRACEFUL);
}
Is there any other way to achieve this with httpclient-5.x?
Thanks in advance.
Of course, it is. But you need to implement your own custom response consumer that can return a partial message content
try (CloseableHttpAsyncClient httpClient = HttpAsyncClients.createDefault()) {
httpClient.start();
final Future<Void> future = httpClient.execute(
new BasicRequestProducer(Method.GET, new URI("http://httpbin.org/")),
new AbstractCharResponseConsumer<Void>() {
@Override
protected void start(
final HttpResponse response,
final ContentType contentType) throws HttpException, IOException {
System.out.println(response.getCode());
}
@Override
protected int capacityIncrement() {
return Integer.MAX_VALUE;
}
@Override
protected void data(final CharBuffer src, final boolean endOfStream) throws IOException {
}
@Override
protected Void buildResult() throws IOException {
return null;
}
@Override
public void releaseResources() {
}
}, null, null);
try {
future.get(1, TimeUnit.SECONDS);
} catch (TimeoutException ex) {
future.cancel(true);
}
}