org.craftercms.commons.rest

Class HttpMessageConvertingResponseWriter

java.lang.Object

org.craftercms.commons.rest.HttpMessageConvertingResponseWriter

public class HttpMessageConvertingResponseWriter
extends Object

Writes the response using a HttpMessageConverter chosen depending on the acceptable media types from the request (most of the code is just a copy from Spring's AbstractMessageConverterMethodProcessor).

Author:

avasquez

Field Summary

Fields

Modifier and Type	Field and Description
protected List<org.springframework.http.MediaType>	allSupportedMediaTypes
protected org.springframework.web.accept.ContentNegotiationManager	contentNegotiationManager
static String	LOG_KEY_WRITTEN_WITH_MESSAGE_CONVERTER
static org.springframework.http.MediaType	MEDIA_TYPE_APPLICATION
protected List<org.springframework.http.converter.HttpMessageConverter<?>>	messageConverters

Constructor Summary

Constructors

Constructor and Description
HttpMessageConvertingResponseWriter(org.springframework.web.accept.ContentNegotiationManager contentNegotiationManager, List<org.springframework.http.converter.HttpMessageConverter<?>> messageConverters)

Method Summary

Modifier and Type	Method and Description
protected List<org.springframework.http.MediaType>	getAcceptableMediaTypes(javax.servlet.http.HttpServletRequest request) Return the acceptable media types from the request.
protected List<org.springframework.http.MediaType>	getAllSupportedMediaTypes(List<org.springframework.http.converter.HttpMessageConverter<?>> messageConverters) Return the media types supported by all provided message converters sorted by specificity via MediaType.sortBySpecificity(List).
protected org.springframework.http.MediaType	getMostSpecificMediaType(org.springframework.http.MediaType acceptType, org.springframework.http.MediaType produceType) Return the more specific of the acceptable and the producible media types with the q-value of the former.
protected List<org.springframework.http.MediaType>	getProducibleMediaTypes(Class<?> returnValueClass) Returns the media types that can be produced: Media types of configured converters that can write the specific return value, or MediaType.ALL
<T> void	writeWithMessageConverters(T returnValue, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)

Methods inherited from class java.lang.Object

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

Field Detail

MEDIA_TYPE_APPLICATION

public static final org.springframework.http.MediaType MEDIA_TYPE_APPLICATION

LOG_KEY_WRITTEN_WITH_MESSAGE_CONVERTER

public static final String LOG_KEY_WRITTEN_WITH_MESSAGE_CONVERTER

See Also:

Constant Field Values

contentNegotiationManager

protected org.springframework.web.accept.ContentNegotiationManager contentNegotiationManager

messageConverters

protected List<org.springframework.http.converter.HttpMessageConverter<?>> messageConverters

allSupportedMediaTypes

protected List<org.springframework.http.MediaType> allSupportedMediaTypes

Constructor Detail

HttpMessageConvertingResponseWriter

public HttpMessageConvertingResponseWriter(org.springframework.web.accept.ContentNegotiationManager contentNegotiationManager,
                                           List<org.springframework.http.converter.HttpMessageConverter<?>> messageConverters)

Method Detail

writeWithMessageConverters

public <T> void writeWithMessageConverters(T returnValue,
                                           javax.servlet.http.HttpServletRequest request,
                                           javax.servlet.http.HttpServletResponse response)
                                    throws IOException,
                                           org.springframework.web.HttpMediaTypeNotAcceptableException

Throws:

IOException

org.springframework.web.HttpMediaTypeNotAcceptableException

getProducibleMediaTypes

protected List<org.springframework.http.MediaType> getProducibleMediaTypes(Class<?> returnValueClass)

Returns the media types that can be produced:

• Media types of configured converters that can write the specific return value, or
• MediaType.ALL

getAcceptableMediaTypes

protected List<org.springframework.http.MediaType> getAcceptableMediaTypes(javax.servlet.http.HttpServletRequest request)
                                                                    throws org.springframework.web.HttpMediaTypeNotAcceptableException

Return the acceptable media types from the request.

Throws:

org.springframework.web.HttpMediaTypeNotAcceptableException

getMostSpecificMediaType

protected org.springframework.http.MediaType getMostSpecificMediaType(org.springframework.http.MediaType acceptType,
                                                                      org.springframework.http.MediaType produceType)

Return the more specific of the acceptable and the producible media types with the q-value of the former.

getAllSupportedMediaTypes

protected List<org.springframework.http.MediaType> getAllSupportedMediaTypes(List<org.springframework.http.converter.HttpMessageConverter<?>> messageConverters)

Return the media types supported by all provided message converters sorted by specificity via MediaType.sortBySpecificity(List).