thoerup/traininfoservice/CircuitBreakerListener.java

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

/**
 * 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();
        
                AccountingCircuitBreaker banedk = new AccountingCircuitBreaker("banedk", threshold, timeout);
                banedk.setNotifier( new JavaLogNotifier() );
                mgr.addCircuitBreaker( banedk );
                
                AccountingCircuitBreaker metro = new AccountingCircuitBreaker("metro", threshold, timeout);
                metro.setNotifier( new JavaLogNotifier() );
                mgr.addCircuitBreaker( metro );
                
                JMXWrapper.registerAllCircuitBreakers();
    }

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

        JMXWrapper.unregisterAllCircuitBreakers();
    }
        
}
1	torben	421	package dk.thoerup.traininfoservice;
2
3			import java.util.logging.Logger;
4
5			import javax.servlet.ServletContextEvent;
6			import javax.servlet.ServletContextListener;
7	torben	959	import javax.servlet.annotation.WebListener;
8	torben	421
9	torben	468	import dk.thoerup.circuitbreaker.AccountingCircuitBreaker;
10			import dk.thoerup.circuitbreaker.CircuitBreakerManager;
11			import dk.thoerup.circuitbreaker.jmx.JMXWrapper;
12			import dk.thoerup.circuitbreaker.notification.JavaLogNotifier;
13	torben	421
14			/**
15			* Application Lifecycle Listener implementation class JmxListener
16			*
17			*/
18	torben	959	@WebListener
19	torben	421	public class CircuitBreakerListener implements ServletContextListener {
20
21			Logger logger = Logger.getLogger(CircuitBreakerListener.class.getName());
22
23			public CircuitBreakerListener() {
24			}
25
26			/**
27			* @see ServletContextListener#contextInitialized(ServletContextEvent)
28			*/
29			public void contextInitialized(ServletContextEvent sce) {
30			logger.warning("Context Init");
31
32	torben	584	int threshold = Integer.parseInt(sce.getServletContext().getInitParameter("banedk_threshold") );
33			int timeout = Integer.parseInt( sce.getServletContext().getInitParameter("banedk_timeout") );
34	torben	421	CircuitBreakerManager mgr = CircuitBreakerManager.getManager();
35
36	torben	584	AccountingCircuitBreaker banedk = new AccountingCircuitBreaker("banedk", threshold, timeout);
37	torben	421	banedk.setNotifier( new JavaLogNotifier() );
38	torben	1042	mgr.addCircuitBreaker( banedk );
39	torben	421
40	torben	1042	AccountingCircuitBreaker metro = new AccountingCircuitBreaker("metro", threshold, timeout);
41			metro.setNotifier( new JavaLogNotifier() );
42			mgr.addCircuitBreaker( metro );
43
44	torben	421	JMXWrapper.registerAllCircuitBreakers();
45			}
46
47			/**
48			* @see ServletContextListener#contextDestroyed(ServletContextEvent)
49			*/
50			public void contextDestroyed(ServletContextEvent sce) {
51			logger.warning("Context Destroyed");
52	torben	866	CircuitBreakerManager.getManager().removeCircuitBreaker("banedk");
53
54	torben	421	JMXWrapper.unregisterAllCircuitBreakers();
55			}
56
57			}