Example usage for org.springframework.core KotlinDetector isKotlinReflectPresent

Introduction

In this page you can find the example usage for org.springframework.core KotlinDetector isKotlinReflectPresent.

Prototype

public static boolean isKotlinReflectPresent() 

Source Link

Document

Determine whether Kotlin reflection is present.

Usage

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;//  ww w  . j  a va2s  .c  om
    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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