org.glassfish.jersey.message.internal
Class MessageBodyFactory

java.lang.Object
  org.glassfish.jersey.message.internal.MessageBodyFactory

All Implemented Interfaces:

MessageBodyWorkers

public class MessageBodyFactory
extends Object
implements MessageBodyWorkers

A factory for managing MessageBodyReader, MessageBodyWriter instances.

Author:

Paul Sandoz, Marek Potociar (marek.potociar at oracle.com), Jakub Podlesak (jakub.podlesak at oracle.com)

Nested Class Summary

static class

MessageBodyFactory.Binder Message body factory injection binder.

Field Summary

static KeyComparator<MediaType>

MEDIA_TYPE_COMPARATOR Media type comparator.

Constructor Summary

MessageBodyFactory(org.glassfish.hk2.api.ServiceLocator locator, Configuration configuration)
Create new message body workers factory.

Method Summary

<T> MessageBodyReader<T>	getMessageBodyReader(Class<T> c, Type t, Annotation[] as, MediaType mediaType) Get a message body reader that matches a set of criteria.
List<MediaType>	getMessageBodyReaderMediaTypes(Class<?> type, Type genericType, Annotation[] annotations) Get the list of media types supported for a Java type.
List<MediaType>	getMessageBodyReaderMediaTypesByType(Class<?> type) Get the list of media types supported for a Java type.
List<MessageBodyReader>	getMessageBodyReadersForType(Class<?> clazz) Get a list of MessageBodyReaders that are suitable for the given type.
<T> MessageBodyWriter<T>	getMessageBodyWriter(Class<T> c, Type t, Annotation[] as, MediaType mediaType) Get a message body writer that matches a set of criteria.
MediaType	getMessageBodyWriterMediaType(Class<?> c, Type t, Annotation[] as, List<MediaType> acceptableMediaTypes) Get the most acceptable media type supported for a Java type given a set of acceptable media types.
List<MediaType>	getMessageBodyWriterMediaTypes(Class<?> c, Type t, Annotation[] as) Get the list of media types supported for a Java type.
List<MediaType>	getMessageBodyWriterMediaTypesByType(Class<?> type) Get the list of media types supported for a Java type.
List<MessageBodyWriter>	getMessageBodyWritersForType(Class<?> clazz) Get a list of MessageBodyWriters that are suitable for the given type.
Map<MediaType,List<MessageBodyReader>>	getReaders(MediaType mediaType) Get the map of media type to list of message body writers that are compatible with a media type.
Map<MediaType,List<MessageBodyWriter>>	getWriters(MediaType mediaType) Get the map of media type to list of message body writers that are compatible with a media type.
String	readersToString(Map<MediaType,List<MessageBodyReader>> readers) Convert a map media type to list of message body readers to a string.
Object	readFrom(Class<?> rawType, Type type, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String,String> httpHeaders, PropertiesDelegate propertiesDelegate, InputStream entityStream, Iterable<ReaderInterceptor> readerInterceptors, boolean translateNce) Reads a type from the entityStream using interceptors.
String	writersToString(Map<MediaType,List<MessageBodyWriter>> writers) Convert a map media type to list of message body writers to a string.
OutputStream	writeTo(Object t, Class<?> rawType, Type type, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String,Object> httpHeaders, PropertiesDelegate propertiesDelegate, OutputStream entityStream, Iterable<WriterInterceptor> writerInterceptors) Writers a type to the entityStream using interceptors.

Methods inherited from class java.lang.Object

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

Field Detail

MEDIA_TYPE_COMPARATOR

public static final KeyComparator<MediaType> MEDIA_TYPE_COMPARATOR

Media type comparator.

Constructor Detail

MessageBodyFactory

@Inject
public MessageBodyFactory(org.glassfish.hk2.api.ServiceLocator locator,
                                 @Optional
                                 Configuration configuration)

Create new message body workers factory.

Parameters:

locator - service locator.

configuration - configuration. Optional - can be null.

Method Detail

getReaders

public Map<MediaType,List<MessageBodyReader>> getReaders(MediaType mediaType)

Description copied from interface: MessageBodyWorkers

Get the map of media type to list of message body writers that are compatible with a media type.

Specified by:

getReaders in interface MessageBodyWorkers

Parameters:

mediaType - the compatible media type.

Returns:

the map of media type to list of message body writers.

getWriters

public Map<MediaType,List<MessageBodyWriter>> getWriters(MediaType mediaType)

Description copied from interface: MessageBodyWorkers

Get the map of media type to list of message body writers that are compatible with a media type.

Specified by:

getWriters in interface MessageBodyWorkers

Parameters:

mediaType - the compatible media type.

Returns:

the map of media type to list of message body writers.

readersToString

public String readersToString(Map<MediaType,List<MessageBodyReader>> readers)

Description copied from interface: MessageBodyWorkers

Convert a map media type to list of message body readers to a string.

Specified by:

readersToString in interface MessageBodyWorkers

Parameters:

readers - the map media type to list of message body readers

Returns:

the string representation.

writersToString

public String writersToString(Map<MediaType,List<MessageBodyWriter>> writers)

Description copied from interface: MessageBodyWorkers

Convert a map media type to list of message body writers to a string.

Specified by:

writersToString in interface MessageBodyWorkers

Parameters:

writers - the map media type to list of message body readers

Returns:

the string representation.

getMessageBodyReader

public <T> MessageBodyReader<T> getMessageBodyReader(Class<T> c,
                                                     Type t,
                                                     Annotation[] as,
                                                     MediaType mediaType)

Description copied from interface: MessageBodyWorkers

Get a message body reader that matches a set of criteria.

Specified by:

getMessageBodyReader in interface MessageBodyWorkers

Type Parameters:

T - the type of object to be read.

Parameters:

c - the class of object to be read.

t - the type of object 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 Class.getGenericParameterTypes.

as - 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 Class.getParameterAnnotations.

mediaType - the media type of the data that will be read, this will be compared to the values of Consumes for each candidate reader and only matching readers will be queried.

Returns:

a MessageBodyReader that matches the supplied criteria or null if none is found.

getMessageBodyReaderMediaTypes

public List<MediaType> getMessageBodyReaderMediaTypes(Class<?> type,
                                                      Type genericType,
                                                      Annotation[] annotations)

Description copied from interface: MessageBodyWorkers

Get the list of media types supported for a Java type.

Specified by:

getMessageBodyReaderMediaTypes in interface MessageBodyWorkers

Parameters:

type - the class of object that is to be read.

genericType - the type of object to be read. E.g. if the message body is to be read as a method parameter, this will be the declared type of the parameter as returned by Method.getGenericParameterTypes.

annotations - an array of the annotations on the declaration of the artifact that will be read. E.g. if the message body is to be consumed as a method parameter, this will be the annotations on that parameter returned by Method.getParameterAnnotations.

Returns:

the list of supported media types, the list is ordered as follows: a/b < a/* < \*\/*

getMessageBodyWriter

public <T> MessageBodyWriter<T> getMessageBodyWriter(Class<T> c,
                                                     Type t,
                                                     Annotation[] as,
                                                     MediaType mediaType)

Description copied from interface: MessageBodyWorkers

Get a message body writer that matches a set of criteria.

Specified by:

getMessageBodyWriter in interface MessageBodyWorkers

Type Parameters:

T - the type of the object that is to be written.

Parameters:

c - the class of object that is to be written.

t - the type of object to be written. E.g. if the message body is to be produced from a field, this will be the declared type of the field as returned by Field.getGenericType.

as - an array of the annotations on the declaration of the artifact that will be written. E.g. if the message body is to be produced from a field, this will be the annotations on that field returned by Field.getDeclaredAnnotations.

mediaType - the media type of the data that will be written, this will be compared to the values of Produces for each candidate writer and only matching writers will be queried.

Returns:

a MessageBodyReader that matches the supplied criteria or null if none is found.

getMessageBodyWriterMediaTypes

public List<MediaType> getMessageBodyWriterMediaTypes(Class<?> c,
                                                      Type t,
                                                      Annotation[] as)

Description copied from interface: MessageBodyWorkers

Get the list of media types supported for a Java type.

Specified by:

getMessageBodyWriterMediaTypes in interface MessageBodyWorkers

Parameters:

c - the class of object that is to be written.

t - the type of object to be written. E.g. if the message body is to be produced from a field, this will be the declared type of the field as returned by Field.getGenericType.

as - an array of the annotations on the declaration of the artifact that will be written. E.g. if the message body is to be produced from a field, this will be the annotations on that field returned by Field.getDeclaredAnnotations.

Returns:

the list of supported media types, the list is ordered as follows: a/b < a/* < \*\/*

getMessageBodyWritersForType

public List<MessageBodyWriter> getMessageBodyWritersForType(Class<?> clazz)

Description copied from interface: MessageBodyWorkers

Get a list of MessageBodyWriters that are suitable for the given type. The list is sorted based on the class hierarchy (most specific writers are first).

Specified by:

getMessageBodyWritersForType in interface MessageBodyWorkers

Parameters:

clazz - the class of object writers are requested for.

Returns:

the list of supported MessageBodyWriters for given class.

getMessageBodyWriterMediaTypesByType

public List<MediaType> getMessageBodyWriterMediaTypesByType(Class<?> type)

Description copied from interface: MessageBodyWorkers

Get the list of media types supported for a Java type.

Specified by:

getMessageBodyWriterMediaTypesByType in interface MessageBodyWorkers

Parameters:

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

Returns:

the list of supported media types, the list is ordered as follows: a/b < a/* < \*\/*

getMessageBodyReaderMediaTypesByType

public List<MediaType> getMessageBodyReaderMediaTypesByType(Class<?> type)

Description copied from interface: MessageBodyWorkers

Get the list of media types supported for a Java type.

Specified by:

getMessageBodyReaderMediaTypesByType in interface MessageBodyWorkers

Parameters:

type - the class of object that is to be read.

Returns:

the list of supported media types, the list is ordered as follows: a/b < a/* < \*\/*

getMessageBodyReadersForType

public List<MessageBodyReader> getMessageBodyReadersForType(Class<?> clazz)

Description copied from interface: MessageBodyWorkers

Get a list of MessageBodyReaders that are suitable for the given type. The list is sorted based on the class hierarchy (most specific readers are first).

Specified by:

getMessageBodyReadersForType in interface MessageBodyWorkers

Parameters:

clazz - the class of object readers are requested for.

Returns:

the list of supported MessageBodyReaders for given class.

getMessageBodyWriterMediaType

public MediaType getMessageBodyWriterMediaType(Class<?> c,
                                               Type t,
                                               Annotation[] as,
                                               List<MediaType> acceptableMediaTypes)

Description copied from interface: MessageBodyWorkers

Get the most acceptable media type supported for a Java type given a set of acceptable media types.

Specified by:

getMessageBodyWriterMediaType in interface MessageBodyWorkers

Parameters:

c - the class of object that is to be written.

t - the type of object to be written. E.g. if the message body is to be produced from a field, this will be the declared type of the field as returned by Field.getGenericType.

as - an array of the annotations on the declaration of the artifact that will be written. E.g. if the message body is to be produced from a field, this will be the annotations on that field returned by Field.getDeclaredAnnotations.

acceptableMediaTypes - the list of acceptable media types, sorted according to the quality with the media type of highest quality occurring first first.

Returns:

the best media types

readFrom

public Object readFrom(Class<?> rawType,
                       Type type,
                       Annotation[] annotations,
                       MediaType mediaType,
                       MultivaluedMap<String,String> httpHeaders,
                       PropertiesDelegate propertiesDelegate,
                       InputStream entityStream,
                       Iterable<ReaderInterceptor> readerInterceptors,
                       boolean translateNce)
                throws WebApplicationException,
                       IOException

Description copied from interface: MessageBodyWorkers

Reads a type from the entityStream using interceptors. If the parameter intercept is true then reader interceptors are executed before calling the message body reader. The appropriate message body reader is chosen after the interceptor execution based on parameter passed to this method and modified by the interceptors.

Specified by:

readFrom in interface MessageBodyWorkers

Parameters:

rawType - raw Java entity type.

type - generic Java entity type.

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 mutable HTTP headers associated with HTTP entity.

propertiesDelegate - request-scoped properties delegate.

entityStream - the InputStream of the HTTP entity. The stream is not closed after reading the entity.

readerInterceptors - Reader interceptor that are to be used to intercept the reading of an entity. The interceptors will be executed in the same order as given in this parameter.

translateNce - if true, the NoContentException thrown by a selected message body reader will be translated into a BadRequestException as required by JAX-RS specification on the server side.

Returns:

the entity that was read from the entityStream.

Throws:

WebApplicationException - Thrown when message body reader fails.

IOException - Thrown when reading from the entityStream fails.

writeTo

public OutputStream writeTo(Object t,
                            Class<?> rawType,
                            Type type,
                            Annotation[] annotations,
                            MediaType mediaType,
                            MultivaluedMap<String,Object> httpHeaders,
                            PropertiesDelegate propertiesDelegate,
                            OutputStream entityStream,
                            Iterable<WriterInterceptor> writerInterceptors)
                     throws IOException,
                            WebApplicationException

Description copied from interface: MessageBodyWorkers

Writers a type to the entityStream using interceptors. If the parameter intercept is true then writer interceptors are executed before calling the message body writer. The appropriate message body writer is chosen after the interceptor execution based on parameter passed to this method and modified by the interceptors.

Specified by:

writeTo in interface MessageBodyWorkers

Parameters:

t - Entity to be written to the entityStream

rawType - raw Java entity type.

type - generic Java entity type.

annotations - an array of the annotations on the resource method that returns the object.

mediaType - the media type of the HTTP entity.

httpHeaders - the mutable HTTP headers associated with HTTP entity.

propertiesDelegate - request-scoped properties delegate.

entityStream - the OutputStream for the HTTP entity.

writerInterceptors - Writer interceptor that are to be used to intercept the writing of an entity. The interceptors will be executed in the same order as given in this parameter.

Returns:

Outer output stream that should be closed by the caller.

Throws:

IOException - Thrown when reading from the entityStream fails.

WebApplicationException - Thrown when message body reader fails.