Java Code Examples for org.springframework.util.Assert#isInstanceOf()

void flush() {
    Object obj;
    synchronized (this) {
        if(this.value == null) {
            // no value set, nothing to flush
            return;
        }
        this.dirty = false;
        obj = adapter.get(this.key, this.value);
    }
    // Note that message will be concatenated with type of object by `Assert.isInstanceOf`
    Assert.isInstanceOf(mapper.getType(), obj, "Adapter " + adapter + " return object of inappropriate");
    Assert.notNull(obj, "Adapter " + adapter + " return null from " + this.value + " that is not allowed");
    mapper.save(key, obj, (name, res) -> {
        synchronized (this) {
            index.put(toIndexKey(name), res.getIndex());
        }
    });
}
 

@Override
public DeferredResult<?> adaptToDeferredResult(Object returnValue) {
	Assert.isInstanceOf(ListenableFuture.class, returnValue, "ListenableFuture expected");
	final DeferredResult<Object> result = new DeferredResult<Object>();
	((ListenableFuture<?>) returnValue).addCallback(new ListenableFutureCallback<Object>() {
		@Override
		public void onSuccess(Object value) {
			result.setResult(value);
		}
		@Override
		public void onFailure(Throwable ex) {
			result.setErrorResult(ex);
		}
	});
	return result;
}
 

private static ReactiveFirestoreTransactionObject extractFirestoreTransaction(Object transaction) {

		Assert.isInstanceOf(ReactiveFirestoreTransactionObject.class, transaction,
				() -> String.format("Expected to find a %s but it turned out to be %s.",
						ReactiveFirestoreTransactionObject.class,
						transaction.getClass()));

		return (ReactiveFirestoreTransactionObject) transaction;
	}
 

public static HttpServletResponse getHttpServletResponse(
    final RequestContext context) {
    Assert.isInstanceOf(ServletExternalContext.class, context
        .getExternalContext(),
        "Cannot obtain HttpServletResponse from event of type: "
            + context.getExternalContext().getClass().getName());
    return (HttpServletResponse) context.getExternalContext()
        .getNativeResponse();
}
 

/**
 * Construct a new {@code MappingJackson2XmlHttpMessageConverter} with a custom {@link ObjectMapper}
 * (must be a {@link XmlMapper} instance).
 * You can use {@link Jackson2ObjectMapperBuilder} to build it easily.
 * @see Jackson2ObjectMapperBuilder#xml()
 */
public MappingJackson2XmlHttpMessageConverter(ObjectMapper objectMapper) {
	super(objectMapper, new MediaType("application", "xml"),
			new MediaType("text", "xml"),
			new MediaType("application", "*+xml"));
	Assert.isInstanceOf(XmlMapper.class, objectMapper, "XmlMapper required");
}
 

protected ParameterizedTypeReference() {
	Class<?> parameterizedTypeReferenceSubclass = findParameterizedTypeReferenceSubclass(getClass());
	Type type = parameterizedTypeReferenceSubclass.getGenericSuperclass();
	Assert.isInstanceOf(ParameterizedType.class, type, "Type must be a parameterized type");
	ParameterizedType parameterizedType = (ParameterizedType) type;
	Assert.isTrue(parameterizedType.getActualTypeArguments().length == 1, "Number of type arguments must be 1");
	this.type = parameterizedType.getActualTypeArguments()[0];
}
 

/**
 * Construct a new {@code MappingJackson2XmlHttpMessageConverter} with a custom {@link ObjectMapper}
 * (must be a {@link XmlMapper} instance).
 * You can use {@link Jackson2ObjectMapperBuilder} to build it easily.
 * @see Jackson2ObjectMapperBuilder#xml()
 */
public MappingJackson2XmlHttpMessageConverter(ObjectMapper objectMapper) {
	super(objectMapper, new MediaType("application", "xml"),
			new MediaType("text", "xml"),
			new MediaType("application", "*+xml"));
	Assert.isInstanceOf(XmlMapper.class, objectMapper, "XmlMapper required");
}
 

/**
 * {@inheritDoc}
 * <p>This implementation uses Netty's {@link CompositeByteBuf}.
 */
@Override
public DataBuffer join(List<? extends DataBuffer> dataBuffers) {
	Assert.notEmpty(dataBuffers, "DataBuffer List must not be empty");
	int bufferCount = dataBuffers.size();
	if (bufferCount == 1) {
		return dataBuffers.get(0);
	}
	CompositeByteBuf composite = this.byteBufAllocator.compositeBuffer(bufferCount);
	for (DataBuffer dataBuffer : dataBuffers) {
		Assert.isInstanceOf(NettyDataBuffer.class, dataBuffer);
		composite.addComponent(true, ((NettyDataBuffer) dataBuffer).getNativeBuffer());
	}
	return new NettyDataBuffer(composite, this);
}
 

@Nullable
@Override
public Object resolveArgumentValue(
		MethodParameter parameter, BindingContext bindingContext, ServerWebExchange exchange) {

	Assert.isInstanceOf(InitBinderBindingContext.class, bindingContext);
	return ((InitBinderBindingContext) bindingContext).getSessionStatus();
}
 

@PostMapping(path = "genericMapListUser")
public Generic<Map<String, List<User>>> genericMapListUser(
    @RequestBody Generic<Map<String, List<User>>> mapListUserGeneric) {
  Assert.isInstanceOf(Generic.class, mapListUserGeneric);
  Assert.isInstanceOf(Map.class, mapListUserGeneric.value);
  return mapListUserGeneric;
}
 

/**
 * {@inheritDoc}
 * <p>This implementation uses Netty's {@link CompositeByteBuf}.
 */
@Override
public DataBuffer join(List<? extends DataBuffer> dataBuffers) {
	Assert.notEmpty(dataBuffers, "DataBuffer List must not be empty");
	int bufferCount = dataBuffers.size();
	if (bufferCount == 1) {
		return dataBuffers.get(0);
	}
	CompositeByteBuf composite = this.byteBufAllocator.compositeBuffer(bufferCount);
	for (DataBuffer dataBuffer : dataBuffers) {
		Assert.isInstanceOf(NettyDataBuffer.class, dataBuffer);
		composite.addComponent(true, ((NettyDataBuffer) dataBuffer).getNativeBuffer());
	}
	return new NettyDataBuffer(composite, this);
}
 

/**
 * Gets the http servlet response.
 *
 * @param context the context
 * @return the http servlet response
 */
public static HttpServletResponse getHttpServletResponse(
    final RequestContext context) {
    Assert.isInstanceOf(ServletExternalContext.class, context
        .getExternalContext(),
        "Cannot obtain HttpServletResponse from event of type: "
            + context.getExternalContext().getClass().getName());
    return (HttpServletResponse) context.getExternalContext()
        .getNativeResponse();
}
 

@Test
public void testServiceOverrideFromPlugin() {
    ContextManagerExtendService service = ServiceManager.INSTANCE.findService(ContextManagerExtendService.class);

    Assert.isInstanceOf(ContextManagerExtendOverrideService.class, service);
}
 

private static PropertySources getSources(Environment environment) {
    Assert.notNull(environment, "Environment must not be null");
    Assert.isInstanceOf(ConfigurableEnvironment.class, environment,
            "Environment must be a ConfigurableEnvironment");
    return ((ConfigurableEnvironment) environment).getPropertySources();
}
 

private HttpServletRequest getHttpServletRequest(ServerHttpRequest request) {
	Assert.isInstanceOf(AbstractServerHttpRequest.class, request);
	return ((AbstractServerHttpRequest) request).getNativeRequest();
}
 

/**
 * {@inheritDoc}
 * The {@code ObjectMapper} must be configured with a {@code SmileFactory} instance.
 */
@Override
public void setObjectMapper(ObjectMapper objectMapper) {
	Assert.isInstanceOf(SmileFactory.class, objectMapper.getFactory(), "SmileFactory required");
	super.setObjectMapper(objectMapper);
}
 

protected final HttpServletResponse getHttpServletResponse(ServerHttpResponse response) {
	Assert.isInstanceOf(ServletServerHttpResponse.class, response, "ServletServerHttpResponse required");
	return ((ServletServerHttpResponse) response).getServletResponse();
}
 

private HttpServletResponse getHttpServletResponse(ServerHttpResponse response) {
	Assert.isInstanceOf(AbstractServerHttpResponse.class, response, "ServletServerHttpResponse required");
	return ((AbstractServerHttpResponse) response).getNativeResponse();
}
 

/**
 * An alternative to {@link #fromMethodCall(Object)} that accepts a
 * {@code UriComponentsBuilder} representing the base URL. This is useful
 * when using MvcUriComponentsBuilder outside the context of processing a
 * request or to apply a custom baseUrl not matching the current request.
 * <p><strong>Note:</strong> This method extracts values from "Forwarded"
 * and "X-Forwarded-*" headers if found. See class-level docs.
 * @param builder the builder for the base URL; the builder will be cloned
 * and therefore not modified and may be re-used for further calls.
 * @param info either the value returned from a "mock" controller
 * invocation or the "mock" controller itself after an invocation
 * @return a UriComponents instance
 */
public static UriComponentsBuilder fromMethodCall(UriComponentsBuilder builder, Object info) {
	Assert.isInstanceOf(MethodInvocationInfo.class, info, "MethodInvocationInfo required");
	MethodInvocationInfo invocationInfo = (MethodInvocationInfo) info;
	Class<?> controllerType = invocationInfo.getControllerType();
	Method method = invocationInfo.getControllerMethod();
	Object[] arguments = invocationInfo.getArgumentValues();
	return fromMethodInternal(builder, controllerType, method, arguments);
}
 

/**
 * Create a {@link UriComponentsBuilder} by invoking a "mock" controller method.
 * The controller method and the supplied argument values are then used to
 * delegate to {@link #fromMethod(Class, Method, Object...)}.
 * <p>For example, given this controller:
 * <pre class="code">
 * &#064;RequestMapping("/people/{id}/addresses")
 * class AddressController {
 *
 *   &#064;RequestMapping("/{country}")
 *   public HttpEntity&lt;Void&gt; getAddressesForCountry(&#064;PathVariable String country) { ... }
 *
 *   &#064;RequestMapping(value="/", method=RequestMethod.POST)
 *   public void addAddress(Address address) { ... }
 * }
 * </pre>
 * A UriComponentsBuilder can be created:
 * <pre class="code">
 * // Inline style with static import of "MvcUriComponentsBuilder.on"
 *
 * MvcUriComponentsBuilder.fromMethodCall(
 * 		on(AddressController.class).getAddressesForCountry("US")).buildAndExpand(1);
 *
 * // Longer form useful for repeated invocation (and void controller methods)
 *
 * AddressController controller = MvcUriComponentsBuilder.on(AddressController.class);
 * controller.addAddress(null);
 * builder = MvcUriComponentsBuilder.fromMethodCall(controller);
 * controller.getAddressesForCountry("US")
 * builder = MvcUriComponentsBuilder.fromMethodCall(controller);
 * </pre>
 * <p><strong>Note:</strong> This method extracts values from "Forwarded"
 * and "X-Forwarded-*" headers if found. See class-level docs.
 * @param info either the value returned from a "mock" controller
 * invocation or the "mock" controller itself after an invocation
 * @return a UriComponents instance
 * @see #on(Class)
 * @see #controller(Class)
 */
public static UriComponentsBuilder fromMethodCall(Object info) {
	Assert.isInstanceOf(MethodInvocationInfo.class, info, "MethodInvocationInfo required");
	MethodInvocationInfo invocationInfo = (MethodInvocationInfo) info;
	Class<?> controllerType = invocationInfo.getControllerType();
	Method method = invocationInfo.getControllerMethod();
	Object[] arguments = invocationInfo.getArgumentValues();
	return fromMethodInternal(null, controllerType, method, arguments);
}