dps.commons.startup.StartupInit Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dps.webapplication Show documentation

Common classes for webapplications

There is a newer version: 1.2.5

package dps.commons.startup;

import dps.logging.HasLogger;

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.Dependent;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.CDI;
import javax.inject.Singleton;
import java.util.Set;

/**
 *
 * To start startup classes, call init() from a method with this possible signature:
 * public void init(@Observes @Initialized(ApplicationScoped.class) Object init)
 *
 */
@Dependent
public class StartupInit implements HasLogger {

    public void init() {

        logInfo("Loading Startup Classes");
        BeanManager beanManager = CDI.current().getBeanManager();

        Set> beans = beanManager.getBeans(Object.class);
        for (Bean bean: beans) {
            Class beanClass = bean.getBeanClass();
            if (bean.getScope() == ApplicationScoped.class || bean.getScope() == Dependent.class || bean.getScope() == Singleton.class) {
                if (beanClass.getAnnotation(Startup.class) != null) {
                    Object o = CDI.current().select(beanClass).get();
                    logInfo("initialized: " + o.toString());
                }
            }
        }

    }
}