|
1
5 package net.sf.panoptes.registry;
6
7 import java.io.IOException  ;
8 import java.util.Collection ;
9 import java.util.HashMap ;
10
11 import javax.management.InstanceNotFoundException ;
12 import javax.management.IntrospectionException ;
13 import javax.management.MalformedObjectNameException ;
14 import javax.management.ObjectName ;
15 import javax.management.ReflectionException ;
16
17 import net.sf.panoptes.component.jmx.model.MBeanWrapper;
18 import net.sf.panoptes.component.jmx.model.MBeanServerNode;
19 import net.sf.panoptes.component.jmx.model.ServerRegistry;
20
21 import org.apache.commons.logging.Log;
22 import org.apache.commons.logging.LogFactory;
23
24
30 public class AliasRegistry {
31
32 public HashMap aliases = new HashMap ();
33 private Log log = LogFactory.getLog(getClass());
34
35 private static AliasRegistry instance;
36
37 private AliasRegistry() {
38 try {
39 aliases.put("servers", new Alias(new ObjectName ("jboss.system:type=Server"), true));
40 aliases.put(
41 "serverInfo",
42 new Alias(new ObjectName ("jboss.system:type=ServerInfo"), false));
43 aliases.put(
44 "mainDeployer",
45 new Alias(new ObjectName ("jboss.system:service=MainDeployer"), false));
46 } catch (MalformedObjectNameException e) {
47 e.printStackTrace();
49 }
50 }
51
52 public static AliasRegistry getInstance() {
53 if (instance == null)
54 instance = new AliasRegistry();
55 return instance;
56 }
57
58 public Object get(String aliasName, MBeanServerNode server)
59 throws InstanceNotFoundException , IntrospectionException , ReflectionException , IOException {
60 if (!aliases.containsKey(aliasName)) {
61 log.warn("Alias '" + aliasName + "' is not bound");
62 return null;
63 } else {
64 Collection s;
65 Alias alias = (Alias) aliases.get(aliasName);
66 if (alias.isGlobal()) {
67 s = ServerRegistry.getInstance().queryMBeans(alias.getObjectName(), null);
68 if (s.size() == 1)
69 return (MBeanWrapper) s.iterator().next();
71 else
72 return s.toArray();
73
74 } else {
75 s = server.getServerConnection().queryNames(alias.getObjectName(), null);
76 if (s.size() == 1)
77 return new MBeanWrapper(server, (ObjectName ) s.iterator().next());
79 else
80 return s.toArray();
81 }
82 }
83 }
84
85 public static class Context {
86 private MBeanWrapper component;
87 public Context(MBeanWrapper component) {
88 this.component = component;
89 }
90
91 public Object get(String alias)
92 throws InstanceNotFoundException , IntrospectionException , ReflectionException , IOException {
93 return getInstance().get(alias, component.getServer());
94 }
95
96
102 public Object get(String alias, MBeanWrapper mbean) throws InstanceNotFoundException , IntrospectionException , ReflectionException , IOException {
103 return getInstance().get(alias, mbean.getServer());
104 }
105 }
106
107 }
108 |
Popular Tags |
Java API By Example, From Geeks To Geeks.