thoerup/traininfoservice/CircuitBreakerListener.java

package dk.thoerup.traininfoservice;

import java.util.logging.Logger;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import dk.thoerup.circuitbreaker.AccountingCircuitBreaker;
import dk.thoerup.circuitbreaker.CircuitBreakerManager;
import dk.thoerup.circuitbreaker.jmx.JMXWrapper;
import dk.thoerup.circuitbreaker.notification.JavaLogNotifier;

/**
 * Application Lifecycle Listener implementation class JmxListener
 *
 */
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();
        
                AccountingCircuitBreaker banedk = new AccountingCircuitBreaker("banedk", threshold, timeout);
                banedk.setNotifier( new JavaLogNotifier() );
                mgr.addCircuitBreaker( banedk );                
                
                JMXWrapper.registerAllCircuitBreakers();
    }

        /**
     * @see ServletContextListener#contextDestroyed(ServletContextEvent)
     */
    public void contextDestroyed(ServletContextEvent sce) {
        logger.warning("Context Destroyed");
        JMXWrapper.unregisterAllCircuitBreakers();
    }
        
}
1	package dk.thoerup.traininfoservice;
2
3	import java.util.logging.Logger;
4
5	import javax.servlet.ServletContextEvent;
6	import javax.servlet.ServletContextListener;
7
8	import dk.thoerup.circuitbreaker.AccountingCircuitBreaker;
9	import dk.thoerup.circuitbreaker.CircuitBreakerManager;
10	import dk.thoerup.circuitbreaker.jmx.JMXWrapper;
11	import dk.thoerup.circuitbreaker.notification.JavaLogNotifier;
12
13	/**
14	* Application Lifecycle Listener implementation class JmxListener
15	*
16	*/
17	public class CircuitBreakerListener implements ServletContextListener {
18
19	Logger logger = Logger.getLogger(CircuitBreakerListener.class.getName());
20
21	public CircuitBreakerListener() {
22	}
23
24	/**
25	* @see ServletContextListener#contextInitialized(ServletContextEvent)
26	*/
27	public void contextInitialized(ServletContextEvent sce) {
28	logger.warning("Context Init");
29
30	int threshold = Integer.parseInt(sce.getServletContext().getInitParameter("banedk_threshold") );
31	int timeout = Integer.parseInt( sce.getServletContext().getInitParameter("banedk_timeout") );
32	CircuitBreakerManager mgr = CircuitBreakerManager.getManager();
33
34	AccountingCircuitBreaker banedk = new AccountingCircuitBreaker("banedk", threshold, timeout);
35	banedk.setNotifier( new JavaLogNotifier() );
36	mgr.addCircuitBreaker( banedk );
37
38	JMXWrapper.registerAllCircuitBreakers();
39	}
40
41	/**
42	* @see ServletContextListener#contextDestroyed(ServletContextEvent)
43	*/
44	public void contextDestroyed(ServletContextEvent sce) {
45	logger.warning("Context Destroyed");
46	JMXWrapper.unregisterAllCircuitBreakers();
47	}
48
49	}