package dk.thoerup.traininfoservice;

import java.util.logging.Logger;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;

import dk.thoerup.circuitbreaker.AccountingCircuitBreaker;
import dk.thoerup.circuitbreaker.LoggingCircuitBreaker;
import dk.thoerup.circuitbreaker.CircuitBreakerManager;
import dk.thoerup.circuitbreaker.jmx.JMXWrapper;
import dk.thoerup.circuitbreaker.notification.*;


/**
 * Application Lifecycle Listener implementation class JmxListener
 *
 */
@WebListener
public class CircuitBreakerListener implements ServletContextListener {

	Logger logger = Logger.getLogger(CircuitBreakerListener.class.getName());

    public CircuitBreakerListener() {
    }

	/**
     * @see ServletContextListener#contextInitialized(ServletContextEvent)
     */
    public void contextInitialized(ServletContextEvent sce) {
        logger.warning("Context Init");
        
        int threshold = Integer.parseInt(sce.getServletContext().getInitParameter("banedk_threshold") );
        int timeout = Integer.parseInt( sce.getServletContext().getInitParameter("banedk_timeout") );
        CircuitBreakerManager mgr = CircuitBreakerManager.getManager();
        
		CompositeNotifier notif = new CompositeNotifier();
		notif.addNotifier( new JavaLogNotifier() );
		notif.addNotifier( new MailNotifier("traininfo@t-hoerup.dk", "torben@t-hoerup.dk", "192.168.10.5") );
		
        
		LoggingCircuitBreaker banedk = new LoggingCircuitBreaker("banedk", threshold, timeout);
		banedk.setNotifier(notif);
		mgr.addCircuitBreaker( banedk );
		
		
		AccountingCircuitBreaker metro = new AccountingCircuitBreaker("metro", threshold, timeout);
		metro.setNotifier(notif);
		mgr.addCircuitBreaker( metro );
		
		//JMXWrapper.registerAllCircuitBreakers();
    }

	/**
     * @see ServletContextListener#contextDestroyed(ServletContextEvent)
     */
    public void contextDestroyed(ServletContextEvent sce) {
    	logger.warning("Context Destroyed");
    	CircuitBreakerManager.getManager().shutdown(); 

    	//JMXWrapper.unregisterAllCircuitBreakers();
    }
	
}