Using WELD from ServlerFilter

[flyinfish]

Is there any possibility to use WELD-Beans from non-weld-enabled components (servlet 2.5 on different platforms) like
- jsf-converter
- jsf-phase-listener
- servlet filter

in converters/phaselisteners i make roundtrip accessing them by name which works fine.

but in servlet filter this does not work because a faces-context does not exist at this time.

[wangliyu]

For JSF converter/phase-listener/system-listener, you can call FacesContext.getApplication().addConverter()/subscribe/ in the @PostConstruct method of your CDI beans.

or another way around:

public static <T> T getBean(Class<? extends T> clazz, Annotation... qualifiers) {
        logger.debug("try to get the bean as {}", clazz.toString());
        try {
            Bean<T> bean = (Bean<T>) getBeanManager().resolve(getBeanManager().getBeans(clazz, qualifiers));
            return (T) getBeanManager().getReference(bean, clazz, getBeanManager().createCreationalContext(bean));
        } catch (Exception e) {
            logger.error("can't get the bean reference", e);
        }
        return null;
    }

lookup BeanManager from jndi names: {"java:comp/BeanManager", "java:comp/env/BeanManager", "java:app/BeanManager"};

you can call this static method in the listeners.