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package dk.thoerup.circuitbreaker.jmx; |
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import java.lang.management.ManagementFactory; |
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import java.util.Set; |
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import java.util.TreeSet; |
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import java.util.logging.Level; |
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import java.util.logging.Logger; |
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|
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import javax.management.MBeanServer; |
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import javax.management.ObjectName; |
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import dk.thoerup.circuitbreaker.AccountingCircuitBreaker; |
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import dk.thoerup.circuitbreaker.CircuitBreaker; |
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import dk.thoerup.circuitbreaker.CircuitBreakerManager; |
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public class JMXWrapper { |
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static Logger logger = Logger.getLogger(JMXWrapper.class.getName()); |
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|
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private static Set<ObjectName> objectNames = new TreeSet<ObjectName>(); |
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public static ObjectName registerCircuitBreaker(CircuitBreaker cb) { |
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Object jmxBean; |
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String className; |
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|
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if (cb instanceof AccountingCircuitBreaker) { |
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jmxBean = new JmxAccountingCircuitBreaker((AccountingCircuitBreaker)cb); |
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className = "AccountingCircuitBreaker"; |
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} else { |
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jmxBean = new JmxCircuitBreaker(cb); |
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className = "CircuitBreaker"; |
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} |
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|
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String name = cb.getName(); |
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|
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try { |
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ObjectName beanName = new ObjectName("dk.thoerup.circuitbreaker:type=" + className + ",name=" + name); |
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|
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MBeanServer server = ManagementFactory.getPlatformMBeanServer(); |
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if (server.isRegistered(beanName)) |
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server.unregisterMBean(beanName); |
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server.registerMBean(jmxBean, beanName); |
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objectNames.add(beanName); |
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return beanName; |
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|
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} catch (Exception e) { |
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logger.log(Level.SEVERE, "Mbean failure",e ); |
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return null; |
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} |
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} |
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|
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public static void registerAllCircuitBreakers() { |
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CircuitBreakerManager mgr = CircuitBreakerManager.getManager(); |
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for (String cbName : mgr.getCircuitBreakerNames()) { |
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CircuitBreaker cb = mgr.getCircuitBreaker(cbName); |
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registerCircuitBreaker(cb); |
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} |
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} |
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|
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public static void unregisterAllCircuitBreakers() { |
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MBeanServer server = ManagementFactory.getPlatformMBeanServer(); |
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|
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for (ObjectName objName : objectNames) { |
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if (server.isRegistered(objName)) { |
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try { |
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server.unregisterMBean(objName); |
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} catch (Exception e) { |
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//At this point we don't care why it wasn't in the system - all that matter is that it's gone |
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} |
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} |
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} |
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} |
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} |