Example usage for org.springframework.core ResolvableType forInstance

Introduction

In this page you can find the example usage for org.springframework.core ResolvableType forInstance.

Prototype

public static ResolvableType forInstance(Object instance) 

Source Link

Document

Return a ResolvableType for the specified instance.

Usage

From source file:org.springframework.context.event.SimpleApplicationEventMulticaster.java

private ResolvableType resolveDefaultEventType(ApplicationEvent event) {
    return ResolvableType.forInstance(event);
}

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From source file:org.springframework.messaging.handler.invocation.reactive.AbstractEncoderMethodReturnValueHandler.java

@SuppressWarnings("unchecked")
private Flux<DataBuffer> encodeContent(@Nullable Object content, MethodParameter returnType,
        DataBufferFactory bufferFactory, @Nullable MimeType mimeType, Map<String, Object> hints) {

    ResolvableType returnValueType = ResolvableType.forMethodParameter(returnType);
    ReactiveAdapter adapter = getAdapterRegistry().getAdapter(returnValueType.resolve(), content);

    Publisher<?> publisher;//from w  ww.  j  a va2 s . c  o m
    ResolvableType elementType;
    if (adapter != null) {
        publisher = adapter.toPublisher(content);
        boolean isUnwrapped = KotlinDetector.isKotlinReflectPresent()
                && KotlinDetector.isKotlinType(returnType.getContainingClass())
                && KotlinDelegate.isSuspend(returnType.getMethod())
                && !COROUTINES_FLOW_CLASS_NAME.equals(returnValueType.toClass().getName());
        ResolvableType genericType = isUnwrapped ? returnValueType : returnValueType.getGeneric();
        elementType = getElementType(adapter, genericType);
    } else {
        publisher = Mono.justOrEmpty(content);
        elementType = (returnValueType.toClass() == Object.class && content != null
                ? ResolvableType.forInstance(content)
                : returnValueType);
    }

    if (elementType.resolve() == void.class || elementType.resolve() == Void.class) {
        return Flux.from(publisher).cast(DataBuffer.class);
    }

    Encoder<?> encoder = getEncoder(elementType, mimeType);
    return Flux.from((Publisher) publisher)
            .map(value -> encodeValue(value, elementType, encoder, bufferFactory, mimeType, hints));
}

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From source file:org.springframework.messaging.handler.invocation.reactive.AbstractEncoderMethodReturnValueHandler.java

@SuppressWarnings("unchecked")
private <T> DataBuffer encodeValue(Object element, ResolvableType elementType, @Nullable Encoder<T> encoder,
        DataBufferFactory bufferFactory, @Nullable MimeType mimeType, @Nullable Map<String, Object> hints) {

    if (encoder == null) {
        encoder = getEncoder(ResolvableType.forInstance(element), mimeType);
        if (encoder == null) {
            throw new MessagingException(
                    "No encoder for " + elementType + ", current value type is " + element.getClass());
        }//from w w w  .  j  av  a 2 s  .c  om
    }
    return encoder.encodeValue((T) element, bufferFactory, elementType, mimeType, hints);
}

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