|
1 package demo.hw.jmxconsole;
2
3 import java.util.Iterator  ;
4 import java.util.Set ;
5 import javax.management.Attribute ;
6 import javax.management.MBeanAttributeInfo ;
7 import javax.management.MBeanInfo ;
8 import javax.management.MBeanServerConnection ;
9 import javax.management.ObjectName ;
10 import javax.management.remote.JMXConnector ;
11 import javax.management.remote.JMXConnectorFactory ;
12 import javax.management.remote.JMXServiceURL ;
13
14 public final class Client {
15
16 private static MBeanServerConnection mbsc;
17
18 private Client() {
19
20 }
21 public static void main(String [] args) {
22 try {
23
24 JMXServiceURL url = new JMXServiceURL (
25 "service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi/server");
26 JMXConnector jmxc = JMXConnectorFactory.connect(url, null);
27
28 mbsc = jmxc.getMBeanServerConnection();
29
30 String domain = "org.objectweb.celtix.instrumentation";
31
32 echo("\n The Celtix Management Demo MBeanServer has " + mbsc.getMBeanCount() + " MBeans");
33 echo("\n There are :");
34
35 Set names = mbsc.queryNames(null, null);
36 for (Iterator i = names.iterator(); i.hasNext();) {
37 ObjectName on = (ObjectName )i.next();
38 echo("\n\t get ObjectName = " + on + "\n\t Its Attributes are :");
39 getInstrumentationAttributes(on);
40 }
41
42 ObjectName serviceMBeanName = new ObjectName (
43 domain + ":type=ServerMBean,Bus=celtix,name=ServerMBean");
44 echo("\n >>> get the ServiceMBean infor <<<");
45
46 echo("\nServiceMBean.ServiceName = " + mbsc.getAttribute(serviceMBeanName, "ServiceName"));
47 echo("\nServiceMBean.Address = " + mbsc.getAttribute(serviceMBeanName, "Address"));
48
49 ObjectName greeterInstrumentation = new ObjectName (
50 domain + ":type=GreeterInstrumentation,Bus=celtix,name=Demo.Management");
51
52 echo("\n >>> get the GreeterInstrumentation counter infor <<<");
53
54 getInstrumentationAttributes(greeterInstrumentation);
55
56
57 mbsc.setAttribute(greeterInstrumentation,
58 new Attribute ("PingMeCounter", new Integer ("20")));
59 echo("\n >>> set the GreeterInstrumentation PingMeCounter to be 20 <<<");
60 echo("\n >>> get the GreeterInstrumentation counter infor <<<");
61
62 getInstrumentationAttributes(greeterInstrumentation);
63
64 Object [] params = new Object [1];
65 params[0] = "JMXConsoleName";
66 String [] signature = new String [1];
67 signature[0] = "java.lang.String";
68 mbsc.invoke(greeterInstrumentation,
69 "setSayHiReturnName", params, signature);
70 echo("\n >>> invoke the GreeterInstrumentation setSayHiReturnName method");
71 echo("\n JMXConsole runs Successfully!");
72 } catch (Exception e) {
73 e.printStackTrace();
74 }
75 }
76
77 public static void getInstrumentationAttributes(ObjectName name) throws Exception {
78
79 MBeanInfo info = mbsc.getMBeanInfo(name);
80 MBeanAttributeInfo [] attrs = info.getAttributes();
81 if (attrs == null) {
82 return;
83 }
84 for (int i = 0; i < attrs.length; i++) {
85 if (attrs[i].isReadable()) {
86 try {
87 Object o = mbsc.getAttribute(name, attrs[i].getName());
88 echo("\n\t\t" + attrs[i].getName() + " = " + o);
89 } catch (Exception e) {
90 e.printStackTrace();
91 }
92 }
93 }
94 }
95
96 public static void echo(String msg) {
97 System.out.print(msg);
98 }
99
100
101 }
102 |
Popular Tags |
Java API By Example, From Geeks To Geeks.