Package org.springframework.web.client

Class HttpMessageConverterExtractor<T>

java.lang.Object

org.springframework.web.client.HttpMessageConverterExtractor<T>

Type Parameters:

T - the data type

All Implemented Interfaces:

ResponseExtractor<T>

public class HttpMessageConverterExtractor<T>
extends Object
implements ResponseExtractor<T>

Response extractor that uses the given entity converters to convert the response into a type T.

Since:

3.0

Author:

Arjen Poutsma, Sam Brannen

See Also:

• RestTemplate

Constructor Summary

Constructors

Constructor	Description
HttpMessageConverterExtractor(Class<T> responseType, List<HttpMessageConverter<?>> messageConverters)	Create a new instance of the HttpMessageConverterExtractor with the given response type and message converters.
HttpMessageConverterExtractor(Type responseType, List<HttpMessageConverter<?>> messageConverters)	Creates a new instance of the HttpMessageConverterExtractor with the given response type and message converters.

Method Summary

Modifier and Type	Method	Description
T	extractData(ClientHttpResponse response)	Extract data from the given ClientHttpResponse and return it.
protected MediaType	getContentType(ClientHttpResponse response)	Determine the Content-Type of the response based on the "Content-Type" header or otherwise default to MediaType.APPLICATION_OCTET_STREAM.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

HttpMessageConverterExtractor

public HttpMessageConverterExtractor(Class<T> responseType,
 List<HttpMessageConverter<?>> messageConverters)

Create a new instance of the HttpMessageConverterExtractor with the given response type and message converters. The given converters must support the response type.

HttpMessageConverterExtractor

public HttpMessageConverterExtractor(Type responseType,
 List<HttpMessageConverter<?>> messageConverters)

Creates a new instance of the HttpMessageConverterExtractor with the given response type and message converters. The given converters must support the response type.

Method Details

extractData

@Nullable
public T extractData(ClientHttpResponse response)
              throws IOException

Description copied from interface: ResponseExtractor

Extract data from the given ClientHttpResponse and return it.

Specified by:

extractData in interface ResponseExtractor<T>

Parameters:

response - the HTTP response

Returns:

the extracted data

Throws:

IOException - in case of I/O errors

getContentType

protected MediaType getContentType(ClientHttpResponse response)

Determine the Content-Type of the response based on the "Content-Type" header or otherwise default to MediaType.APPLICATION_OCTET_STREAM.

Parameters:

response - the response

Returns:

the MediaType, or "application/octet-stream"