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 |
|
|
|
8 |
torben |
468 |
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 |
torben |
421 |
|
13 |
|
|
/** |
14 |
|
|
* Application Lifecycle Listener implementation class JmxListener |
15 |
|
|
* |
16 |
|
|
*/ |
17 |
torben |
1080 |
|
18 |
torben |
421 |
public class CircuitBreakerListener implements ServletContextListener { |
19 |
|
|
|
20 |
|
|
Logger logger = Logger.getLogger(CircuitBreakerListener.class.getName()); |
21 |
|
|
|
22 |
|
|
public CircuitBreakerListener() { |
23 |
|
|
} |
24 |
|
|
|
25 |
|
|
/** |
26 |
|
|
* @see ServletContextListener#contextInitialized(ServletContextEvent) |
27 |
|
|
*/ |
28 |
|
|
public void contextInitialized(ServletContextEvent sce) { |
29 |
|
|
logger.warning("Context Init"); |
30 |
|
|
|
31 |
torben |
584 |
int threshold = Integer.parseInt(sce.getServletContext().getInitParameter("banedk_threshold") ); |
32 |
|
|
int timeout = Integer.parseInt( sce.getServletContext().getInitParameter("banedk_timeout") ); |
33 |
torben |
421 |
CircuitBreakerManager mgr = CircuitBreakerManager.getManager(); |
34 |
|
|
|
35 |
torben |
584 |
AccountingCircuitBreaker banedk = new AccountingCircuitBreaker("banedk", threshold, timeout); |
36 |
torben |
421 |
banedk.setNotifier( new JavaLogNotifier() ); |
37 |
torben |
1042 |
mgr.addCircuitBreaker( banedk ); |
38 |
torben |
421 |
|
39 |
torben |
1042 |
AccountingCircuitBreaker metro = new AccountingCircuitBreaker("metro", threshold, timeout); |
40 |
|
|
metro.setNotifier( new JavaLogNotifier() ); |
41 |
|
|
mgr.addCircuitBreaker( metro ); |
42 |
|
|
|
43 |
torben |
1080 |
//JMXWrapper.registerAllCircuitBreakers(); |
44 |
torben |
421 |
} |
45 |
|
|
|
46 |
|
|
/** |
47 |
|
|
* @see ServletContextListener#contextDestroyed(ServletContextEvent) |
48 |
|
|
*/ |
49 |
|
|
public void contextDestroyed(ServletContextEvent sce) { |
50 |
|
|
logger.warning("Context Destroyed"); |
51 |
torben |
866 |
CircuitBreakerManager.getManager().removeCircuitBreaker("banedk"); |
52 |
|
|
|
53 |
torben |
1080 |
//JMXWrapper.unregisterAllCircuitBreakers(); |
54 |
torben |
421 |
} |
55 |
|
|
|
56 |
|
|
} |