org.jboss.resteasy.plugins.providers.jaxb.json

Class JsonMapProvider

java.lang.Object

org.jboss.resteasy.plugins.providers.jaxb.MapProvider

org.jboss.resteasy.plugins.providers.jaxb.json.JsonMapProvider

All Implemented Interfaces:

MessageBodyReader<Object>, MessageBodyWriter<Object>

@Provider
@Produces(value="application/*+json")
@Consumes(value="application/*+json")
public class JsonMapProvider
extends MapProvider

Version:

$Revision: 1 $

Author:

Bill Burke

Field Summary

Fields inherited from class org.jboss.resteasy.plugins.providers.jaxb.MapProvider

providers

Constructor Summary

Constructors

Constructor and Description
JsonMapProvider()

Method Summary

Methods

Modifier and Type	Method and Description
static String	getCharset(MediaType mediaType)
Object	readFrom(Class<Object> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String,String> httpHeaders, InputStream entityStream) Read a type from the InputStream.
void	writeTo(Object target, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String,Object> httpHeaders, OutputStream entityStream) Write a type to an HTTP message.

Methods inherited from class org.jboss.resteasy.plugins.providers.jaxb.MapProvider

getFinder, getJAXBObject, getSize, isExpandEntityReferences, isReadable, isWrapped, isWriteable, setExpandEntityReferences, suppressExpandEntityExpansion

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonMapProvider

public JsonMapProvider()

Method Detail

readFrom

public Object readFrom(Class<Object> type,
              Type genericType,
              Annotation[] annotations,
              MediaType mediaType,
              MultivaluedMap<String,String> httpHeaders,
              InputStream entityStream)
                throws IOException,
                       WebApplicationException

Description copied from interface: MessageBodyReader

Read a type from the InputStream.

In case the entity input stream is empty, the reader is expected to either return a Java representation of a zero-length entity or throw a NoContentException in case no zero-length entity representation is defined for the supported Java type. A NoContentException, if thrown by a message body reader while reading a server request entity, is automatically translated by JAX-RS server runtime into a BadRequestException wrapping the original NoContentException and rethrown for a standard processing by the registered exception mappers.

Specified by:

readFrom in interface MessageBodyReader<Object>

Overrides:

readFrom in class MapProvider

Parameters:

type - the type that is to be read from the entity stream.

genericType - the type of instance to be produced. E.g. if the message body is to be converted into a method parameter, this will be the formal type of the method parameter as returned by Method.getGenericParameterTypes.

annotations - an array of the annotations on the declaration of the artifact that will be initialized with the produced instance. E.g. if the message body is to be converted into a method parameter, this will be the annotations on that parameter returned by Method.getParameterAnnotations.

mediaType - the media type of the HTTP entity.

httpHeaders - the read-only HTTP headers associated with HTTP entity.

entityStream - the InputStream of the HTTP entity. The caller is responsible for ensuring that the input stream ends when the entity has been consumed. The implementation should not close the input stream.

Returns:

the type that was read from the stream. In case the entity input stream is empty, the reader is expected to either return an instance representing a zero-length entity or throw a NoContentException in case no zero-length entity representation is defined for the supported Java type.

Throws:

IOException - if an IO error arises. In case the entity input stream is empty and the reader is not able to produce a Java representation for a zero-length entity, NoContentException is expected to be thrown.

WebApplicationException - if a specific HTTP error response needs to be produced. Only effective if thrown prior to the response being committed.

getCharset

public static String getCharset(MediaType mediaType)

writeTo

public void writeTo(Object target,
           Class<?> type,
           Type genericType,
           Annotation[] annotations,
           MediaType mediaType,
           MultivaluedMap<String,Object> httpHeaders,
           OutputStream entityStream)
             throws IOException,
                    WebApplicationException

Description copied from interface: MessageBodyWriter

Write a type to an HTTP message. The message header map is mutable but any changes must be made before writing to the output stream since the headers will be flushed prior to writing the message body.

Specified by:

writeTo in interface MessageBodyWriter<Object>

Overrides:

writeTo in class MapProvider

Parameters:

target - the instance to write.

type - the class of instance that is to be written.

genericType - the type of instance to be written. GenericEntity provides a way to specify this information at runtime.

annotations - an array of the annotations attached to the message entity instance.

mediaType - the media type of the HTTP entity.

httpHeaders - a mutable map of the HTTP message headers.

entityStream - the OutputStream for the HTTP entity. The implementation should not close the output stream.

Throws:

IOException - if an IO error arises.

WebApplicationException - if a specific HTTP error response needs to be produced. Only effective if thrown prior to the message being committed.