Checking if class is proxified with CDI 1.2

Question

In CDI 1.2 there is a way to check if a class instance is proxified? I need this because I need to get the name of original class, not the proxy name.

@Inject Bean bean;

public void sysout() {
    // will print something like com.Bean$$Weld9239823
    System.out.println(bean.getClass()); 

    // I don't know how to check if the bean instance if a proxy or real class instance
}

Using Weld classes I can do this job:

public void sysout() {
    // will print true because this is a proxy
    System.out.println(ProxyObject.class.isAssignableFrom(bean)); 

    // will print com.Bean
    System.out.println(((TargetInstanceProxy) bean).getTargetInstance());
}

In CDI 1.1 there is no method to do this. I search inside CDI 1.2 docs if a method was added about this, but I don't found anything.

So... I miss something and CDI 1.2 there is a method to get original class name and instance? Or if not, there is a plain to add this feature in near feature?

Answer 1

For Weld on WildFly do this:

public boolean isProxy(Object obj) {
    try{
        return Class.forName("org.jboss.weld.bean.proxy.ProxyObject").isInstance(obj);
    } catch (Exception e) {
        log.error("Unable to check if object is proxy", e);
    }
    return false;
}

To retrive actual object instead of proxy (I need to serialize it) I do this:

public Object getObject(Object obj) {
    Field f = null;
    boolean isAccessible = false;
    try {
        for(Field fi : Class.forName(handler).getDeclaredFields()) {
            if(fi.getName().equals(field)) {
                f = fi;
                isAccessible = f.isAccessible();
                f.setAccessible(true);
            }
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    if(f == null) {
        throw new RuntimeException(new NoSuchFieldException(String.format(
                "The required field '%s' not found in '%s'. " +
                        "May be the code is obsolete for running on this application server.",
                field, method)));
    } else {
        try{
            obj = f.get(getHandler(obj));
            for(Method m : Class.forName(instance).getMethods()) {
                if(m.getName().equals(value)) {
                    return m.invoke(obj);
                }
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        } finally {
            f.setAccessible(isAccessible);
        }
        throw new NoSuchMethodError(String.format(
               "The required method '%s' not found in '%s'. " +
                       "May be the code is obsolete for running on this application server.",
                value, instance));
    }
}

Be aware, that it is the darkest magic as possible, have very poor performance and can break at any WildFly update, if they change classes, methods for fields in it.