Examples with BeanInitializingEvent io.micronaut.context.event.BeanInitializingEvent used on opensource projects

Example 1 with BeanInitializingEvent

use of io.micronaut.context.event.BeanInitializingEvent in project micronaut-core by micronaut-projects.

the class AbstractBeanDefinition method postConstruct.

/**
 * Default postConstruct hook that only invokes methods that require reflection. Generated subclasses should
 * override to call methods that don't require reflection.
 *
 * @param resolutionContext The resolution hook
 * @param context           The context
 * @param bean              The bean
 * @return The bean
 */
@SuppressWarnings({ "unused", "unchecked" })
@Internal
@UsedByGeneratedCode
protected Object postConstruct(BeanResolutionContext resolutionContext, BeanContext context, Object bean) {
    boolean addInCreationHandling = isSingleton() && !CollectionUtils.isNotEmpty(postConstructMethods);
    DefaultBeanContext.BeanKey key = null;
    if (addInCreationHandling) {
        // ensure registration as an inflight bean if a post construct is present
        // this is to ensure that if the post construct method does anything funky to
        // cause recreation of this bean then we don't have a circular problem
        key = new DefaultBeanContext.BeanKey(this, resolutionContext.getCurrentQualifier());
        resolutionContext.addInFlightBean(key, bean);
    }
    final Set<Map.Entry<Class, List<BeanInitializedEventListener>>> beanInitializedEventListeners = ((DefaultBeanContext) context).beanInitializedEventListeners;
    if (CollectionUtils.isNotEmpty(beanInitializedEventListeners)) {
        for (Map.Entry<Class, List<BeanInitializedEventListener>> entry : beanInitializedEventListeners) {
            if (entry.getKey().isAssignableFrom(getBeanType())) {
                for (BeanInitializedEventListener listener : entry.getValue()) {
                    bean = listener.onInitialized(new BeanInitializingEvent(context, this, bean));
                    if (bean == null) {
                        throw new BeanInstantiationException(resolutionContext, "Listener [" + listener + "] returned null from onInitialized event");
                    }
                }
            }
        }
    }
    DefaultBeanContext defaultContext = (DefaultBeanContext) context;
    for (int i = 0; i < methodInjectionPoints.size(); i++) {
        MethodInjectionPoint methodInjectionPoint = methodInjectionPoints.get(i);
        if (methodInjectionPoint.isPostConstructMethod() && methodInjectionPoint.requiresReflection()) {
            injectBeanMethod(resolutionContext, defaultContext, i, bean);
        }
    }
    if (bean instanceof LifeCycle) {
        bean = ((LifeCycle) bean).start();
    }
    try {
        return bean;
    } finally {
        if (addInCreationHandling) {
            // ensure registration as an inflight bean if a post construct is present
            // this is to ensure that if the post construct method does anything funky to
            // cause recreation of this bean then we don't have a circular problem
            resolutionContext.removeInFlightBean(key);
        }
    }
}