org.glassfish.jersey.message.internal
Class OutboundJaxrsResponse

java.lang.Object
  javax.ws.rs.core.Response
      org.glassfish.jersey.message.internal.OutboundJaxrsResponse

public class OutboundJaxrsResponse
extends Response

An outbound JAX-RS response message. The implementation delegates method calls to an underlying outbound message context.

Author:

Marek Potociar (marek.potociar at oracle.com)

Nested Class Summary

static class

OutboundJaxrsResponse.Builder Outbound JAX-RS Response.ResponseBuilder implementation.

Nested classes/interfaces inherited from class javax.ws.rs.core.Response

Response.ResponseBuilder, Response.Status, Response.StatusType

Constructor Summary

OutboundJaxrsResponse(Response.StatusType status, OutboundMessageContext context)
Create new outbound JAX-RS response message instance.

Method Summary

boolean	bufferEntity() Buffer the message entity data.
void	close() Close the underlying message entity input stream (if available and open) as well as releases any other resources associated with the response (e.g.
static OutboundJaxrsResponse	from(Response response) Get an OutboundJaxrsResponse instance for a given JAX-RS response.
Set<String>	getAllowedMethods() Get the allowed HTTP methods from the Allow HTTP header.
OutboundMessageContext	getContext() Get the underlying outbound message context.
Map<String,NewCookie>	getCookies() Get any new cookies set on the response message.
Date	getDate() Get message date.
Object	getEntity() Get the message entity Java instance.
EntityTag	getEntityTag() Get the entity tag.
String	getHeaderString(String name) Get a message header as a single string value.
Locale	getLanguage() Get the language of the message entity.
Date	getLastModified() Get the last modified date.
int	getLength() Get Content-Length value.
Link	getLink(String relation) Get the link for the relation.
Link.Builder	getLinkBuilder(String relation) Convenience method that returns a Link.Builder for the relation.
Set<Link>	getLinks() Get the links attached to the message as headers.
URI	getLocation() Get the location.
MediaType	getMediaType() Get the media type of the message entity.
MultivaluedMap<String,Object>	getMetadata() See Response.getHeaders().
int	getStatus() Get the status code associated with the response.
Response.StatusType	getStatusInfo() Get the complete status information associated with the response.
MultivaluedMap<String,String>	getStringHeaders() Get view of the response headers and their string values.
boolean	hasEntity() Check if there is an entity available in the response.
boolean	hasLink(String relation) Check if link for relation exists.
<T> T	readEntity(Class<T> type) Read the message entity input stream as an instance of specified Java type using a MessageBodyReader that supports mapping the message entity stream onto the requested type.
<T> T	readEntity(Class<T> type, Annotation[] annotations) Read the message entity input stream as an instance of specified Java type using a MessageBodyReader that supports mapping the message entity stream onto the requested type.
<T> T	readEntity(GenericType<T> entityType) Read the message entity input stream as an instance of specified Java type using a MessageBodyReader that supports mapping the message entity stream onto the requested type.
<T> T	readEntity(GenericType<T> entityType, Annotation[] annotations) Read the message entity input stream as an instance of specified Java type using a MessageBodyReader that supports mapping the message entity stream onto the requested type.
String	toString()

Methods inherited from class javax.ws.rs.core.Response

accepted, accepted, created, fromResponse, getHeaders, noContent, notAcceptable, notModified, notModified, notModified, ok, ok, ok, ok, ok, seeOther, serverError, status, status, status, temporaryRedirect

Methods inherited from class java.lang.Object

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

Constructor Detail

OutboundJaxrsResponse

public OutboundJaxrsResponse(Response.StatusType status,
                             OutboundMessageContext context)

Create new outbound JAX-RS response message instance.

Parameters:

status - response status.

context - underlying outbound message context.

Method Detail

from

public static OutboundJaxrsResponse from(Response response)

Get an OutboundJaxrsResponse instance for a given JAX-RS response.

Parameters:

response - response instance to from.

Returns:

corresponding OutboundJaxrsResponse instance.

getContext

public OutboundMessageContext getContext()

Get the underlying outbound message context.

Returns:

underlying outbound message context.

getStatus

public int getStatus()

Description copied from class: Response

Get the status code associated with the response.

Specified by:

getStatus in class Response

Returns:

the response status code.

getStatusInfo

public Response.StatusType getStatusInfo()

Description copied from class: Response

Get the complete status information associated with the response.

Specified by:

getStatusInfo in class Response

Returns:

the response status information. The returned value is never null.

getEntity

public Object getEntity()

Description copied from class: Response

Get the message entity Java instance. Returns null if the message does not contain an entity body.

If the entity is represented by an un-consumed input stream the method will return the input stream.

Specified by:

getEntity in class Response

Returns:

the message entity or null if message does not contain an entity body (i.e. when Response.hasEntity() returns false).

readEntity

public <T> T readEntity(Class<T> type)
             throws ProcessingException

Description copied from class: Response

Read the message entity input stream as an instance of specified Java type using a MessageBodyReader that supports mapping the message entity stream onto the requested type.

Method throws an ProcessingException if the content of the message cannot be mapped to an entity of the requested type and IllegalStateException in case the entity is not backed by an input stream or if the original entity input stream has already been consumed without buffering the entity data prior consuming.

A message instance returned from this method will be cached for subsequent retrievals via Response.getEntity(). Unless the supplied entity type is an input stream, this method automatically closes the an unconsumed original response entity data stream if open. In case the entity data has been buffered, the buffer will be reset prior consuming the buffered data to enable subsequent invocations of readEntity(...) methods on this response.

Specified by:

readEntity in class Response

Type Parameters:

T - entity instance Java type.

Parameters:

type - the type of entity.

Returns:

the message entity; for a zero-length response entities returns a corresponding Java object that represents zero-length data. In case no zero-length representation is defined for the Java type, a ProcessingException wrapping the underlying NoContentException is thrown.

Throws:

ProcessingException - if the content of the message cannot be mapped to an entity of the requested type.

See Also:

MessageBodyReader

readEntity

public <T> T readEntity(GenericType<T> entityType)
             throws ProcessingException

Description copied from class: Response

Read the message entity input stream as an instance of specified Java type using a MessageBodyReader that supports mapping the message entity stream onto the requested type.

Method throws an ProcessingException if the content of the message cannot be mapped to an entity of the requested type and IllegalStateException in case the entity is not backed by an input stream or if the original entity input stream has already been consumed without buffering the entity data prior consuming.

A message instance returned from this method will be cached for subsequent retrievals via Response.getEntity(). Unless the supplied entity type is an input stream, this method automatically closes the an unconsumed original response entity data stream if open. In case the entity data has been buffered, the buffer will be reset prior consuming the buffered data to enable subsequent invocations of readEntity(...) methods on this response.

Specified by:

readEntity in class Response

Type Parameters:

T - entity instance Java type.

Parameters:

entityType - the type of entity; may be generic.

Returns:

the message entity; for a zero-length response entities returns a corresponding Java object that represents zero-length data. In case no zero-length representation is defined for the Java type, a ProcessingException wrapping the underlying NoContentException is thrown.

Throws:

ProcessingException - if the content of the message cannot be mapped to an entity of the requested type.

See Also:

MessageBodyReader

readEntity

public <T> T readEntity(Class<T> type,
                        Annotation[] annotations)
             throws ProcessingException

Description copied from class: Response

Read the message entity input stream as an instance of specified Java type using a MessageBodyReader that supports mapping the message entity stream onto the requested type.

Method throws an ProcessingException if the content of the message cannot be mapped to an entity of the requested type and IllegalStateException in case the entity is not backed by an input stream or if the original entity input stream has already been consumed without buffering the entity data prior consuming.

A message instance returned from this method will be cached for subsequent retrievals via Response.getEntity(). Unless the supplied entity type is an input stream, this method automatically closes the an unconsumed original response entity data stream if open. In case the entity data has been buffered, the buffer will be reset prior consuming the buffered data to enable subsequent invocations of readEntity(...) methods on this response.

Specified by:

readEntity in class Response

Type Parameters:

T - entity instance Java type.

Parameters:

type - the type of entity.

annotations - annotations that will be passed to the MessageBodyReader.

Returns:

the message entity; for a zero-length response entities returns a corresponding Java object that represents zero-length data. In case no zero-length representation is defined for the Java type, a ProcessingException wrapping the underlying NoContentException is thrown.

Throws:

ProcessingException - if the content of the message cannot be mapped to an entity of the requested type.

See Also:

MessageBodyReader

readEntity

public <T> T readEntity(GenericType<T> entityType,
                        Annotation[] annotations)
             throws ProcessingException

Description copied from class: Response

Read the message entity input stream as an instance of specified Java type using a MessageBodyReader that supports mapping the message entity stream onto the requested type.

Method throws an ProcessingException if the content of the message cannot be mapped to an entity of the requested type and IllegalStateException in case the entity is not backed by an input stream or if the original entity input stream has already been consumed without buffering the entity data prior consuming.

A message instance returned from this method will be cached for subsequent retrievals via Response.getEntity(). Unless the supplied entity type is an input stream, this method automatically closes the an unconsumed original response entity data stream if open. In case the entity data has been buffered, the buffer will be reset prior consuming the buffered data to enable subsequent invocations of readEntity(...) methods on this response.

Specified by:

readEntity in class Response

Type Parameters:

T - entity instance Java type.

Parameters:

entityType - the type of entity; may be generic.

annotations - annotations that will be passed to the MessageBodyReader.

Returns:

the message entity; for a zero-length response entities returns a corresponding Java object that represents zero-length data. In case no zero-length representation is defined for the Java type, a ProcessingException wrapping the underlying NoContentException is thrown.

Throws:

ProcessingException - if the content of the message cannot be mapped to an entity of the requested type.

See Also:

MessageBodyReader

hasEntity

public boolean hasEntity()

Description copied from class: Response

Check if there is an entity available in the response. The method returns true if the entity is present, returns false otherwise.

Note that the method may return true also for response messages with a zero-length content, in case the "Content-Length" and "Content-Type" headers are specified in the message. In such case, an attempt to read the entity using one of the readEntity(...) methods will return a corresponding instance representing a zero-length entity for a given Java type or produce a ProcessingException in case no such instance is available for the Java type.

Specified by:

hasEntity in class Response

Returns:

true if there is an entity present in the message, false otherwise.

bufferEntity

public boolean bufferEntity()
                     throws ProcessingException

Description copied from class: Response

Buffer the message entity data.

In case the message entity is backed by an unconsumed entity input stream, all the bytes of the original entity input stream are read and stored in a local buffer. The original entity input stream is consumed and automatically closed as part of the operation and the method returns true.

In case the response entity instance is not backed by an unconsumed input stream an invocation of bufferEntity method is ignored and the method returns false.

This operation is idempotent, i.e. it can be invoked multiple times with the same effect which also means that calling the bufferEntity() method on an already buffered (and thus closed) message instance is legal and has no further effect. Also, the result returned by the bufferEntity() method is consistent across all invocations of the method on the same Response instance.

Buffering the message entity data allows for multiple invocations of readEntity(...) methods on the response instance. Note however, that once the response instance itself is closed, the implementations are expected to release the buffered message entity data too. Therefore any subsequent attempts to read a message entity stream on such closed response will result in an IllegalStateException being thrown.

Specified by:

bufferEntity in class Response

Returns:

true if the message entity input stream was available and was buffered successfully, returns false if the entity stream was not available.

Throws:

ProcessingException - if there was an error while buffering the entity input stream.

close

public void close()
           throws ProcessingException

Description copied from class: Response

Close the underlying message entity input stream (if available and open) as well as releases any other resources associated with the response (e.g. buffered message entity data).

This operation is idempotent, i.e. it can be invoked multiple times with the same effect which also means that calling the close() method on an already closed message instance is legal and has no further effect.

The close() method should be invoked on all instances that contain an un-consumed entity input stream to ensure the resources associated with the instance are properly cleaned-up and prevent potential memory leaks. This is typical for client-side scenarios where application layer code processes only the response headers and ignores the response entity.

Any attempts to manipulate (read, get, buffer) a message entity on a closed response will result in an IllegalStateException being thrown.

Specified by:

close in class Response

Throws:

ProcessingException - if there is an error closing the response.

getStringHeaders

public MultivaluedMap<String,String> getStringHeaders()

Description copied from class: Response

Get view of the response headers and their string values. The underlying header data may be subsequently modified by the JAX-RS runtime on the server side. Changes in the underlying header data are reflected in this view.

Specified by:

getStringHeaders in class Response

Returns:

response headers as a string view of header values.

See Also:

Response.getHeaders(), Response.getHeaderString(java.lang.String)

getHeaderString

public String getHeaderString(String name)

Description copied from class: Response

Get a message header as a single string value. Each single header value is converted to String using a RuntimeDelegate.HeaderDelegate if one is available via RuntimeDelegate.createHeaderDelegate(java.lang.Class) for the header value class or using its toString method if a header delegate is not available.

Specified by:

getHeaderString in class Response

Parameters:

name - the message header.

Returns:

the message header value. If the message header is not present then null is returned. If the message header is present but has no value then the empty string is returned. If the message header is present more than once then the values of joined together and separated by a ',' character.

See Also:

Response.getHeaders(), Response.getStringHeaders()

getMediaType

public MediaType getMediaType()

Description copied from class: Response

Get the media type of the message entity.

Specified by:

getMediaType in class Response

Returns:

the media type or null if there is no response entity.

getLanguage

public Locale getLanguage()

Description copied from class: Response

Get the language of the message entity.

Specified by:

getLanguage in class Response

Returns:

the language of the entity or null if not specified.

getLength

public int getLength()

Description copied from class: Response

Get Content-Length value.

Specified by:

getLength in class Response

Returns:

Content-Length as integer if present and valid number. In other cases returns -1.

getCookies

public Map<String,NewCookie> getCookies()

Description copied from class: Response

Get any new cookies set on the response message.

Specified by:

getCookies in class Response

Returns:

a read-only map of cookie name (String) to Cookie.

getEntityTag

public EntityTag getEntityTag()

Description copied from class: Response

Get the entity tag.

Specified by:

getEntityTag in class Response

Returns:

the entity tag, otherwise null if not present.

getDate

public Date getDate()

Description copied from class: Response

Get message date.

Specified by:

getDate in class Response

Returns:

the message date, otherwise null if not present.

getLastModified

public Date getLastModified()

Description copied from class: Response

Get the last modified date.

Specified by:

getLastModified in class Response

Returns:

the last modified date, otherwise null if not present.

getAllowedMethods

public Set<String> getAllowedMethods()

Description copied from class: Response

Get the allowed HTTP methods from the Allow HTTP header.

Specified by:

getAllowedMethods in class Response

Returns:

the allowed HTTP methods, all methods will returned as upper case strings.

getLocation

public URI getLocation()

Description copied from class: Response

Get the location.

Specified by:

getLocation in class Response

Returns:

the location URI, otherwise null if not present.

getLinks

public Set<Link> getLinks()

Description copied from class: Response

Get the links attached to the message as headers. Any links in the message that are relative must be resolved with respect to the actual request URI that produced this response. Note that request URIs may be updated by filters, so the actual request URI may differ from that in the original invocation.

Specified by:

getLinks in class Response

Returns:

links, may return empty Set if no links are present. Does not return null.

hasLink

public boolean hasLink(String relation)

Description copied from class: Response

Check if link for relation exists.

Specified by:

hasLink in class Response

Parameters:

relation - link relation.

Returns:

true if the link for the relation is present in the message headers, false otherwise.

getLink

public Link getLink(String relation)

Description copied from class: Response

Get the link for the relation. A relative link is resolved with respect to the actual request URI that produced this response. Note that request URIs may be updated by filters, so the actual request URI may differ from that in the original invocation.

Specified by:

getLink in class Response

Parameters:

relation - link relation.

Returns:

the link for the relation, otherwise null if not present.

getLinkBuilder

public Link.Builder getLinkBuilder(String relation)

Description copied from class: Response

Convenience method that returns a Link.Builder for the relation. See Response.getLink(java.lang.String) for more information.

Specified by:

getLinkBuilder in class Response

Parameters:

relation - link relation.

Returns:

the link builder for the relation, otherwise null if not present.

getMetadata

public MultivaluedMap<String,Object> getMetadata()

Description copied from class: Response

See Response.getHeaders(). This method is considered deprecated. Users are encouraged to switch their code to use the getHeaders() method instead. The method may be annotated as @Deprecated in a future release of JAX-RS API.

Specified by:

getMetadata in class Response

Returns:

response headers as a multivalued map.

toString

public String toString()

Overrides:

toString in class Object