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

Introduction

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

Prototype

public boolean hasMessageBody() throws IOException 

Source Link

Document

Indicates whether the response has a 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;
    }/*from   w ww.j  ava  2  s  . c o  m*/
    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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