org.glassfish.jersey.server.filter
Class UriConnegFilter

java.lang.Object
  org.glassfish.jersey.server.filter.UriConnegFilter

All Implemented Interfaces:

ContainerRequestFilter

@PreMatching
@Priority(value=3000)
public class UriConnegFilter
extends Object
implements ContainerRequestFilter

A URI-based content negotiation filter mapping a dot-declared suffix in URI to media type that is the value of the Accept header or a language that is the value of the Accept-Language header.

This filter may be used when the acceptable media type and acceptable language need to be declared in the URI.

This class may be extended to declare the mappings and the extending class, foo.MyUriConnegFilter say, can be registered as a container request filter.

If a suffix of "atom" is registered with a media type of "application/atom+xml" then a GET request of:

GET /resource.atom

is transformed to:

GET /resource
Accept: application/atom+xml

Any existing "Accept" header value will be replaced.

If a suffix of "english" is registered with a language of "en" then a GET request of:

GET /resource.english

is transformed to:

GET /resource
Accept-Language: en

Any existing "Accept-Language"header value will be replaced.

The media type mappings are processed before the language type mappings.

Author:

Paul Sandoz, Martin Matula (martin.matula at oracle.com)

Field Summary

protected Map<String,String>	languageMappings
protected Map<String,MediaType>	mediaTypeMappings

Constructor Summary

UriConnegFilter(Configuration rc)
Create a filter that reads the configuration (media type and language mappings) from the provided ResourceConfig instance.

UriConnegFilter(Map<String,MediaType> mediaTypeMappings, Map<String,String> languageMappings)
Create a filter with suffix to media type mappings and suffix to language mappings.

Method Summary

void	filter(ContainerRequestContext rc) Filter method called before a request has been dispatched to a resource.

Methods inherited from class java.lang.Object

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

Field Detail

mediaTypeMappings

protected final Map<String,MediaType> mediaTypeMappings

languageMappings

protected final Map<String,String> languageMappings

Constructor Detail

UriConnegFilter

public UriConnegFilter(@Context
                       Configuration rc)

Create a filter that reads the configuration (media type and language mappings) from the provided ResourceConfig instance. This constructor will be called by the Jersey runtime when the filter class is returned from Application.getClasses(). The ResourceConfig instance will get auto-injected.

Parameters:

rc - ResourceConfig instance that holds the configuration for the filter.

UriConnegFilter

public UriConnegFilter(Map<String,MediaType> mediaTypeMappings,
                       Map<String,String> languageMappings)

Create a filter with suffix to media type mappings and suffix to language mappings.

Parameters:

mediaTypeMappings - the suffix to media type mappings.

languageMappings - the suffix to language mappings.

Method Detail

filter

public void filter(ContainerRequestContext rc)
            throws IOException

Description copied from interface: ContainerRequestFilter

Filter method called before a request has been dispatched to a resource.

Filters in the filter chain are ordered according to their javax.annotation.Priority class-level annotation value. If a request filter produces a response by calling ContainerRequestContext.abortWith(javax.ws.rs.core.Response) method, the execution of the (either pre-match or post-match) request filter chain is stopped and the response is passed to the corresponding response filter chain (either pre-match or post-match). For example, a pre-match caching filter may produce a response in this way, which would effectively skip any post-match request filters as well as post-match response filters. Note however that a responses produced in this manner would still be processed by the pre-match response filter chain.

Specified by:

filter in interface ContainerRequestFilter

Parameters:

rc - request context.

Throws:

IOException - if an I/O exception occurs.

See Also:

PreMatching