org.springframework.web.servlet.mvc.method.annotation.DeferredResultMethodReturnValueHandler java code examples

Add the Codota plugin to your IDE and get smart completions

private void myMethod () {
 DateTime d =new DateTime()
DateTimeFormatter formatter;String text;formatter.parseDateTime(text)
Object instant;new DateTime(instant)
Smart code suggestions by Codota
}

handlers.add(new HttpHeadersReturnValueHandler());
handlers.add(new CallableMethodReturnValueHandler());
handlers.add(new DeferredResultMethodReturnValueHandler());
handlers.add(new AsyncTaskMethodReturnValueHandler(this.beanFactory));

@Override
public void handleReturnValue(@Nullable Object returnValue, MethodParameter returnType,
    ModelAndViewContainer mavContainer, NativeWebRequest webRequest) throws Exception {
  if (returnValue == null) {
    mavContainer.setRequestHandled(true);
    return;
  }
  DeferredResult<?> result;
  if (returnValue instanceof DeferredResult) {
    result = (DeferredResult<?>) returnValue;
  }
  else if (returnValue instanceof ListenableFuture) {
    result = adaptListenableFuture((ListenableFuture<?>) returnValue);
  }
  else if (returnValue instanceof CompletionStage) {
    result = adaptCompletionStage((CompletionStage<?>) returnValue);
  }
  else {
    // Should not happen...
    throw new IllegalStateException("Unexpected return value type: " + returnValue);
  }
  WebAsyncUtils.getAsyncManager(webRequest).startDeferredResultProcessing(result, mavContainer);
}

@Test
public void supportsReturnType() throws Exception {
  assertTrue(this.handler.supportsReturnType(
      on(TestController.class).resolveReturnType(DeferredResult.class, String.class)));
  assertTrue(this.handler.supportsReturnType(
      on(TestController.class).resolveReturnType(ListenableFuture.class, String.class)));
  assertTrue(this.handler.supportsReturnType(
      on(TestController.class).resolveReturnType(CompletableFuture.class, String.class)));
}

private void testHandle(Object returnValue, Class<?> asyncType,
    Runnable setResultTask, Object expectedValue) throws Exception {
  ModelAndViewContainer mavContainer = new ModelAndViewContainer();
  MethodParameter returnType = on(TestController.class).resolveReturnType(asyncType, String.class);
  this.handler.handleReturnValue(returnValue, returnType, mavContainer, this.webRequest);
  assertTrue(this.request.isAsyncStarted());
  assertFalse(WebAsyncUtils.getAsyncManager(this.webRequest).hasConcurrentResult());
  setResultTask.run();
  assertTrue(WebAsyncUtils.getAsyncManager(this.webRequest).hasConcurrentResult());
  assertEquals(expectedValue, WebAsyncUtils.getAsyncManager(this.webRequest).getConcurrentResult());
}

handlers.add(new HttpHeadersReturnValueHandler());
handlers.add(new CallableMethodReturnValueHandler());
handlers.add(new DeferredResultMethodReturnValueHandler());
handlers.add(new AsyncTaskMethodReturnValueHandler(this.beanFactory));

@Override
public void handleReturnValue(@Nullable Object returnValue, MethodParameter returnType,
    ModelAndViewContainer mavContainer, NativeWebRequest webRequest) throws Exception {
  if (returnValue == null) {
    mavContainer.setRequestHandled(true);
    return;
  }
  DeferredResult<?> result;
  if (returnValue instanceof DeferredResult) {
    result = (DeferredResult<?>) returnValue;
  }
  else if (returnValue instanceof ListenableFuture) {
    result = adaptListenableFuture((ListenableFuture<?>) returnValue);
  }
  else if (returnValue instanceof CompletionStage) {
    result = adaptCompletionStage((CompletionStage<?>) returnValue);
  }
  else {
    // Should not happen...
    throw new IllegalStateException("Unexpected return value type: " + returnValue);
  }
  WebAsyncUtils.getAsyncManager(webRequest).startDeferredResultProcessing(result, mavContainer);
}

@Test
public void doesNotSupportReturnType() throws Exception {
  assertFalse(this.handler.supportsReturnType(on(TestController.class).resolveReturnType(String.class)));
}

@Before
public void setup() throws Exception {
  this.handler = new DeferredResultMethodReturnValueHandler();
  this.request = new MockHttpServletRequest();
  MockHttpServletResponse response = new MockHttpServletResponse();
  this.webRequest = new ServletWebRequest(this.request, response);
  AsyncWebRequest asyncWebRequest = new StandardServletAsyncWebRequest(this.request, response);
  WebAsyncUtils.getAsyncManager(this.webRequest).setAsyncWebRequest(asyncWebRequest);
  this.request.setAsyncSupported(true);
}

handlers.add(new HttpHeadersReturnValueHandler());
handlers.add(new CallableMethodReturnValueHandler());
handlers.add(new DeferredResultMethodReturnValueHandler());
handlers.add(new AsyncTaskMethodReturnValueHandler(this.beanFactory));

handlers.add(new HttpEntityMethodProcessor(getMessageConverters(), this.contentNegotiationManager));
handlers.add(new CallableMethodReturnValueHandler());
handlers.add(new DeferredResultMethodReturnValueHandler());
handlers.add(new AsyncTaskMethodReturnValueHandler(this.beanFactory));

handlers.add(new HttpHeadersReturnValueHandler());
handlers.add(new CallableMethodReturnValueHandler());
handlers.add(new DeferredResultMethodReturnValueHandler());
handlers.add(new AsyncTaskMethodReturnValueHandler(this.beanFactory));

Javadoc

Handler for return values of type DeferredResult, ListenableFuture, CompletionStage and any other async type with a #getAdapterMap().

Most used methods

Popular in Java

Making http requests using okhttp
findViewById (Activity)
getSupportFragmentManager (FragmentActivity)
Return the FragmentManager for interacting with fragments associated with this activity.
setScale (BigDecimal)
Returns a BigDecimal whose scale is the specified value, and whose value is numerically equal to thi
URLConnection (java.net)
The abstract class URLConnection is the superclass of all classes that represent a communications li
Semaphore (java.util.concurrent)
A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each #acquire blocks if
Collectors (java.util.stream)
ZipFile (java.util.zip)
This class provides random read access to a zip file. You pay more to read the zip file's central di
JOptionPane (javax.swing)
Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except configuration, are d

How to useDeferredResultMethodReturnValueHandler in org.springframework.web.servlet.mvc.method.annotation

Best Java code snippets using org.springframework.web.servlet.mvc.method.annotation.DeferredResultMethodReturnValueHandler (Showing top 11 results out of 315)

How to use
DeferredResultMethodReturnValueHandler
in
org.springframework.web.servlet.mvc.method.annotation