[EXTCDI-120] StartupEventBroadcaster

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.3
• Component/s: Core
• Assignee: Gerhard Petracek
• Reporter: Gerhard Petracek
• Created: 14/Jan/11 20:15
• Updated: 03/Mar/11 19:21
• Resolved: 14/Jan/11 20:28

Description

before codi configures anything it should be possible to process initialization tasks.

public interface StartupEventBroadcaster
{
void broadcastStartup();
}

example for an use-case:

it can be used for an improved app-server support in combination with mojarra
the basic problem is the early config approach of mojarra.
if mojarra gets invoked before the bootstrapping process of a cdi container, it starts to configure everything immediately and codi gets invoked (outside a cdi context).

in such a case it's possible to use a custom ServletContextListener for bootsrapping the container.
in case of owb it's possible to extend WebBeansConfigurationListener

example:

public class MojarraAwareWebBeansConfigurationListener extends WebBeansConfigurationListener implements StartupEventBroadcaster
{
private static Boolean initialized = false;

private static ContainerLifecycle storedContainerLifecycle;

public void contextInitialized(ServletContextEvent event)
{
if (!initialized)

{ //in this case CDI is bootstrapped already super.contextInitialized(event); initialized = true; storedContainerLifecycle = this.lifeCycle; }

}

public void broadcastStartup()
{
if (initialized)

{ return; }

//in this case Mojarra was invoked too soon

FacesContext facesContext = FacesContext.getCurrentInstance();

if (facesContext != null && facesContext.getExternalContext() != null)

{ //force bootstrapping of OWB contextInitialized(new ServletContextEvent((ServletContext) facesContext.getExternalContext().getContext())); initialized = true; }

}

public void requestInitialized(ServletRequestEvent event)
{
if (this.lifeCycle == null)

{ //here we have a different instance this.lifeCycle = storedContainerLifecycle; }

super.requestInitialized(event);
}
}