Example usage for org.springframework.web.client MessageBodyClientHttpResponseWrapper hasEmptyMessageBody

Introduction

In this page you can find the example usage for org.springframework.web.client MessageBodyClientHttpResponseWrapper hasEmptyMessageBody.

Prototype

@SuppressWarnings("ConstantConditions")
public boolean hasEmptyMessageBody() throws IOException 

Source Link

Document

Indicates whether the response has an empty message body.

Usage

From source file:org.springframework.web.client.HttpMessageConverterExtractor.java

@Override
@SuppressWarnings({ "unchecked", "rawtypes", "resource" })
public T extractData(ClientHttpResponse response) throws IOException {
    MessageBodyClientHttpResponseWrapper responseWrapper = new MessageBodyClientHttpResponseWrapper(response);
    if (!responseWrapper.hasMessageBody() || responseWrapper.hasEmptyMessageBody()) {
        return null;
    }//w w  w. j a v a2s  . c om
    MediaType contentType = getContentType(responseWrapper);

    try {
        for (HttpMessageConverter<?> messageConverter : this.messageConverters) {
            if (messageConverter instanceof GenericHttpMessageConverter) {
                GenericHttpMessageConverter<?> genericMessageConverter = (GenericHttpMessageConverter<?>) messageConverter;
                if (genericMessageConverter.canRead(this.responseType, null, contentType)) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Reading [" + this.responseType + "] as \"" + contentType + "\" using ["
                                + messageConverter + "]");
                    }
                    return (T) genericMessageConverter.read(this.responseType, null, responseWrapper);
                }
            }
            if (this.responseClass != null) {
                if (messageConverter.canRead(this.responseClass, contentType)) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Reading [" + this.responseClass.getName() + "] as \"" + contentType
                                + "\" using [" + messageConverter + "]");
                    }
                    return (T) messageConverter.read((Class) this.responseClass, responseWrapper);
                }
            }
        }
    } catch (IOException | HttpMessageNotReadableException ex) {
        throw new RestClientException("Error while extracting response for type [" + this.responseType
                + "] and content type [" + contentType + "]", ex);
    }

    throw new RestClientException("Could not extract response: no suitable HttpMessageConverter found "
            + "for response type [" + this.responseType + "] and content type [" + contentType + "]");
}

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