Hi Guilhem,
What version of Jersey are you using?
It seems like when you use text/xml Jersey is processing and that
results in an exception due to some JAXB error, possibly because by
default Jersey will create a JAXBContext from the class and that may
be lacking some additional information than if you created the
JAXBContext.
The code to process text/xml and application/xml goes through the same
path so you should be able to override both or indeed any JAXB support
supplied by Jersey if your own MessageBodyWriter implementation is
registered. Would it be possible to send a simple reproducible test
case?
Note that you can also define your own ContextResolver<Marshaller>
that can pool Marshaller instances per-thread (as they are not thread
safe and reuse the existing JAXB support.
Paul.
On Aug 6, 2010, at 5:58 PM, Guilhem wrote:
> Hello,
>
> I'm using jersey in a WebService to produce XML object marshalled
> with JAXB.
> I want to use my own JAXBContext so i create a Jersey provider to
> handle the marshalling of my object.
>
> My problem is that when i use the MIME type aplication/xml, my
> provider is well used, but when i use the MIME type text/XML
> jersey generate his own marshaller and so failed to create the
> JAXBContext (because it is a little hard).
>
>
> here is my provider (simplified) :
>
> import**;
>
> @Provider
> public class CapabilitiesWriter<T extends Capabilities> implements
> MessageBodyWriter<T> {
>
> private static final MarshallerPool pool;
> static {
> MarshallerPool pool = // here i build a sort of marshaller
> }
>
> @Override
> public boolean isWriteable(Class<?> type, Type type1,
> Annotation[] antns, MediaType mt) {
> return Capabilities.class.isAssignableFrom(type);
> }
>
> @Override
> public long getSize(T t, Class<?> type, Type type1, Annotation[]
> antns, MediaType mt) {
> return -1;
> }
>
> @Override
> public void writeTo(T t, Class<?> type, Type type1, Annotation[]
> antns, MediaType mt, MultivaluedMap<String, Object> mm, OutputStream
> out) throws IOException, WebApplicationException {
> Marshaller m = // here i get my marshaller;
> m.marshal(t, out);
> }
>
> }
>
> and in my singleton I return a Response object like this :
>
> @GET
> public Response doGET() throws JAXBException {
> String currentMIME_Type = "something"; // here i have some
> process to choose the MIME type
> Capabilities capa = something; // again i have
> some process building the object
>
> return Response.ok(capa, currentMIME_Type).build();
> }
>
>
> if "currentMIME_Type"=application/xml allright everything is fine,
> i enter in the method writeTo of my provider CapabilitiesWriter.
>
> if "currentMIME_Type"=text/xml i get a JAXB Exception at (I have 2
> stack trace, don't know why) :
>
> at
> com
> .sun
> .jersey
> .core
> .provider
> .jaxb
> .AbstractRootElementProvider
> .writeTo(AbstractRootElementProvider.java:152)
> at
> com
> .sun
> .jersey.spi.container.ContainerResponse.write(ContainerResponse.java:
> 294)
> at
> com
> .sun
> .jersey
> .server
> .impl
> .application
> .WebApplicationImpl._handleRequest(WebApplicationImpl.java:1140)
> at
> com
> .sun
> .jersey
> .server
> .impl
> .application
> .WebApplicationImpl.handleRequest(WebApplicationImpl.java:1053)
> at
> com
> .sun
> .jersey
> .server
> .impl
> .application
> .WebApplicationImpl.handleRequest(WebApplicationImpl.java:1043)
> at
> com
> .sun
> .jersey.spi.container.servlet.WebComponent.service(WebComponent.java:
> 406)
> at
> com
> .sun
> .jersey
> .spi
> .container.servlet.ServletContainer.service(ServletContainer.java:477)
> at
> com
> .sun
> .jersey
> .spi
> .container.servlet.ServletContainer.service(ServletContainer.java:662)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
> at
> org
> .apache
> .catalina
> .core
> .ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
> 303)
> at
> org
> .apache
> .catalina
> .core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
> at
> org
> .apache
> .catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
> 243)
> at
> org
> .apache
> .catalina.core.StandardContextValve.invoke(StandardContextValve.java:
> 201)
> at
> org
> .apache
> .catalina.core.StandardHostValve.invoke(StandardHostValve.java:163)
> at
> org
> .apache
> .catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
> at
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:
> 556)
> at
> org
> .apache
> .catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:
> 118)
> at
> org
> .apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:
> 402)
> at
> org
> .apache.coyote.http11.Http11Processor.process(Http11Processor.java:
> 249)
> at org.apache.coyote.http11.Http11Protocol
> $Http11ConnectionHandler.process(Http11Protocol.java:267)
> at org.apache.coyote.http11.Http11Protocol
> $Http11ConnectionHandler.process(Http11Protocol.java:245)
> at org.apache.tomcat.util.net.JIoEndpoint
> $SocketProcessor.run(JIoEndpoint.java:260)
> at java.util.concurrent.ThreadPoolExecutor
> $Worker.runTask(ThreadPoolExecutor.java:886)
> at java.util.concurrent.ThreadPoolExecutor
> $Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:619)
>
>
> at com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException
> $Builder.check(IllegalAnnotationsException.java:91)
> at
> com
> .sun
> .xml
> .internal
> .bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:
> 436)
> at
> com
> .sun
> .xml
> .internal
> .bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:277)
> at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl
> $JAXBContextBuilder.build(JAXBContextImpl.java:1100)
> at
> com
> .sun
> .xml
> .internal.bind.v2.ContextFactory.createContext(ContextFactory.java:
> 143)
> at
> com
> .sun
> .xml
> .internal.bind.v2.ContextFactory.createContext(ContextFactory.java:
> 110)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun
> .reflect
> .NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun
> .reflect
> .DelegatingMethodAccessorImpl
> .invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:202)
> at javax.xml.bind.ContextFinder.find(ContextFinder.java:376)
> at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:574)
> at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:522)
> at
> com
> .sun
> .jersey
> .core
> .provider
> .jaxb
> .AbstractJAXBProvider.getStoredJAXBContext(AbstractJAXBProvider.java:
> 184)
> at
> com
> .sun
> .jersey
> .core
> .provider
> .jaxb.AbstractJAXBProvider.getJAXBContext(AbstractJAXBProvider.java:
> 177)
> at
> com
> .sun
> .jersey
> .core
> .provider
> .jaxb.AbstractJAXBProvider.getMarshaller(AbstractJAXBProvider.java:
> 155)
> at
> com
> .sun
> .jersey
> .core
> .provider
> .jaxb.AbstractJAXBProvider.getMarshaller(AbstractJAXBProvider.java:
> 134)
> at
> com
> .sun
> .jersey
> .core
> .provider
> .jaxb
> .AbstractRootElementProvider
> .writeTo(AbstractRootElementProvider.java:145)
>
>
>
> so my question is, why the MIME type change the way of using
> provider? and how redirect all mime type to my provider?
>
> Thanks,
>
> Guilhem legal
>
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