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Posted to issues@cxf.apache.org by "Andriy Redko (JIRA)" <ji...@apache.org> on 2017/10/28 13:48:00 UTC

[jira] [Resolved] (CXF-7501) Cannot inject field in ContainerRequestFilter

     [ https://issues.apache.org/jira/browse/CXF-7501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andriy Redko resolved CXF-7501.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 3.2.1
                   3.1.14

> Cannot inject field in ContainerRequestFilter
> ---------------------------------------------
>
>                 Key: CXF-7501
>                 URL: https://issues.apache.org/jira/browse/CXF-7501
>             Project: CXF
>          Issue Type: Bug
>          Components: JAX-RS
>    Affects Versions: 3.1.10, 3.2.0
>         Environment: Linux Mint 64 bit, TomEE Plus 7.0.3, JavaEE 7 application using MVC specification and reference implementation(Libs Attached)
>            Reporter: Jeyvison Nascimento
>            Assignee: Andriy Redko
>              Labels: cdi
>             Fix For: 3.1.14, 3.2.1
>
>         Attachments: javax-mvc.jar, ozark.jar
>
>
> Hey folks.
> We found a weird behavior while running MVC specification(JSR 371) on TomEE witch CXF. We have a *ContainerRequestFilter* defined called *JaxRsContextFilter* 
> {code:java}
> @PreMatching
> @Priority(0)
> public class JaxRsContextFilter implements ContainerRequestFilter {
>     @Inject
>     private JaxRsContextProducer jaxRsContextProducer;
>     @Context
>     private Configuration configuration;
>     @Context
>     private HttpServletRequest request;
>     @Context
>     private HttpServletResponse response;
>     public JaxRsContextFilter() {
>     }
>     public void filter(ContainerRequestContext requestContext) throws IOException {
>         this.jaxRsContextProducer.populate(this.configuration, this.request, this.response);
>     }
> }
> {code}
> You can see that we have a JaxRsContextProducer annotated to be injected as a field in our object but when JAXRSUtils is called to run the the container filters it injects the fields annotated as *@Context* , not the fields annotated with *@Inject*.
> {code:java}
>  for (ProviderInfo<ContainerRequestFilter> filter : containerFilters) {
>                 try {
>                     InjectionUtils.injectContexts(filter.getProvider(), filter, m);
>                     filter.getProvider().filter(context);
>                 } catch (IOException ex) {
>                     throw ExceptionUtils.toInternalServerErrorException(ex, null); 
>                 }
> {code}
> It causes our filter(*JaxRsContextFilter*) to throw a NullPointerException when filtering the request because it uses the producer to perform some actions in  this operation.
> I believe this field should be injected as well, not only the *@Context* fields.



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