circuitbreaker/jmx/JMXWrapper.java

package dk.thoerup.circuitbreaker.jmx;

import java.lang.management.ManagementFactory;
import java.util.Set;
import java.util.TreeSet;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.management.MBeanServer;
import javax.management.ObjectName;

import dk.thoerup.circuitbreaker.CircuitBreaker;
import dk.thoerup.circuitbreaker.CircuitBreakerManager;

public class JMXWrapper {
        static Logger logger = Logger.getLogger(JMXWrapper.class.getName());
        
        private static Set<ObjectName> objectNames = new TreeSet<ObjectName>();
        
        
        public static ObjectName registerCircuitBreaker(CircuitBreaker cb) {
                Object jmxBean;
                String className;
                

                jmxBean = new JmxCircuitBreaker(cb);
                className = "CircuitBreaker";                   
                
                
                String name = cb.getName();
                
                try {
                        
                        ObjectName beanName = new ObjectName("dk.thoerup.circuitbreaker:type=" + className + ",name=" + name);
                        
                        MBeanServer server = ManagementFactory.getPlatformMBeanServer();
                        if (server.isRegistered(beanName))
                                server.unregisterMBean(beanName);
                        server.registerMBean(jmxBean, beanName);
                        objectNames.add(beanName);
                        return beanName;
                        
                } catch (Exception e) {
                        logger.log(Level.SEVERE, "Mbean failure",e );
                        return null;
                }
        }
        
        public static void registerAllCircuitBreakers() {
                CircuitBreakerManager mgr = CircuitBreakerManager.getManager();
                
                for (String cbName : mgr.getCircuitBreakerNames()) {
                        CircuitBreaker cb = mgr.getCircuitBreaker(cbName);
                        registerCircuitBreaker(cb);
                }
        }
        
        public static void unregisterAllCircuitBreakers() {
                MBeanServer server = ManagementFactory.getPlatformMBeanServer();
                
                for (ObjectName objName : objectNames) {
                        if (server.isRegistered(objName)) {
                                try {
                                        server.unregisterMBean(objName);
                                } catch (Exception e) {
                                        //At this point we don't care why it wasn't in the system - all that matter is that it's gone
                                }
                        }
                }
        }
}
1	package dk.thoerup.circuitbreaker.jmx;
2
3	import java.lang.management.ManagementFactory;
4	import java.util.Set;
5	import java.util.TreeSet;
6	import java.util.logging.Level;
7	import java.util.logging.Logger;
8
9	import javax.management.MBeanServer;
10	import javax.management.ObjectName;
11
12	import dk.thoerup.circuitbreaker.CircuitBreaker;
13	import dk.thoerup.circuitbreaker.CircuitBreakerManager;
14
15	public class JMXWrapper {
16	static Logger logger = Logger.getLogger(JMXWrapper.class.getName());
17
18	private static Set<ObjectName> objectNames = new TreeSet<ObjectName>();
19
20
21	public static ObjectName registerCircuitBreaker(CircuitBreaker cb) {
22	Object jmxBean;
23	String className;
24
25
26	jmxBean = new JmxCircuitBreaker(cb);
27	className = "CircuitBreaker";
28
29
30	String name = cb.getName();
31
32	try {
33
34	ObjectName beanName = new ObjectName("dk.thoerup.circuitbreaker:type=" + className + ",name=" + name);
35
36	MBeanServer server = ManagementFactory.getPlatformMBeanServer();
37	if (server.isRegistered(beanName))
38	server.unregisterMBean(beanName);
39	server.registerMBean(jmxBean, beanName);
40	objectNames.add(beanName);
41	return beanName;
42
43	} catch (Exception e) {
44	logger.log(Level.SEVERE, "Mbean failure",e );
45	return null;
46	}
47	}
48
49	public static void registerAllCircuitBreakers() {
50	CircuitBreakerManager mgr = CircuitBreakerManager.getManager();
51
52	for (String cbName : mgr.getCircuitBreakerNames()) {
53	CircuitBreaker cb = mgr.getCircuitBreaker(cbName);
54	registerCircuitBreaker(cb);
55	}
56	}
57
58	public static void unregisterAllCircuitBreakers() {
59	MBeanServer server = ManagementFactory.getPlatformMBeanServer();
60
61	for (ObjectName objName : objectNames) {
62	if (server.isRegistered(objName)) {
63	try {
64	server.unregisterMBean(objName);
65	} catch (Exception e) {
66	//At this point we don't care why it wasn't in the system - all that matter is that it's gone
67	}
68	}
69	}
70	}
71	}