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From "iris ding (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-6369) org.apache.cxf.jaxrs.impl.ConfigurationImpl does not comply with SPEC
Date Fri, 24 Apr 2015 06:54:38 GMT

    [ https://issues.apache.org/jira/browse/CXF-6369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14510572#comment-14510572
] 

iris ding commented on CXF-6369:
--------------------------------

The proposed change is in org.apache.cxf.jaxrs.impl.ConfigurationImpl, Two methods need be
modified:

 @Override
    public boolean isRegistered(Class<?> cls) {
        for (Object o : getInstances()) {
            // if (cls.isAssignableFrom(o.getClass())) {
            if (cls == (o.getClass())) {
                return true;
            }
        }
        return false;
    }


 public void register(Object provider, Map<Class<?>, Integer> contracts) {
       //need to check whether existed already, If so, remove the old entry before hand -start
here
        Object duplicate = null;
        for (Object o : providers.keySet())
        {
            if (o.getClass() == provider.getClass())
            {
                duplicate = o;
                break;
            }

        }
        providers.remove(duplicate);
      ////need to check whether existed already, If so, remove the old entry before hand --
end here
        if (provider.getClass() == Class.class) {
            provider = createProvider((Class<?>) provider);
        }
        Map<Class<?>, Integer> metadata = providers.get(provider);
        if (metadata == null) {
            metadata = new HashMap<Class<?>, Integer>();
            providers.put(provider, metadata);
        }
        for (Class<?> contract : contracts.keySet()) {
            if (contract.isAssignableFrom(provider.getClass())) {
                metadata.put(contract, contracts.get(contract));
            }
        }
    }


> org.apache.cxf.jaxrs.impl.ConfigurationImpl does not comply with SPEC
> ---------------------------------------------------------------------
>
>                 Key: CXF-6369
>                 URL: https://issues.apache.org/jira/browse/CXF-6369
>             Project: CXF
>          Issue Type: Bug
>          Components: JAX-RS
>    Affects Versions: 3.0.3, 3.0.4, 2.7.15
>            Reporter: iris ding
>
> According to http://docs.oracle.com/javaee/7/api/javax/ws/rs/core/Configurable.html
> As a general rule, for each JAX-RS component class there can be at most one registration
— class-based or instance-based — configured at any given moment. Implementations MUST
reject any attempts to configure a new registration for a provider class that has been already
registered in the given configurable context earlier. Implementations SHOULD also raise a
warning to inform the user about the rejected component registration.
> For example:
>  config.register(GzipInterceptor.class, WriterInterceptor.class);
>  config.register(GzipInterceptor.class);       // Rejected by runtime.
>  config.register(new GzipInterceptor());       // Rejected by runtime.
>  config.register(GzipInterceptor.class, 6500); // Rejected by runtime.
> So we need to check whether the same class's instances have already been put into config
before hand.
> Also to check whether the class/instance has been registered via  public boolean isRegistered(Class<?>
cls) , we need to check whether the two class is the same other than just isAssignableFrom.



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