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1
22 package org.jboss.console.twiddle.command;
23
24 import java.io.PrintWriter  ;
25 import java.util.Set ;
26 import java.util.Iterator ;
27
28 import javax.management.ObjectName ;
29 import javax.management.MBeanServerConnection ;
30
31 import gnu.getopt.Getopt;
32 import gnu.getopt.LongOpt;
33
34 import org.jboss.util.Strings;
35
36
43 public class ServerInfoCommand
44 extends MBeanServerCommand
45 {
46 public static final int UNKNOWN = 0;
47 public static final int DEFAULT_DOMAIN = 1;
48 public static final int MBEAN_COUNT = 2;
49 public static final int LIST_NAMES = 3;
50
51 private int mode = UNKNOWN;
52
53 public ServerInfoCommand()
54 {
55 super("serverinfo", "Get information about the MBean server");
56 }
57
58 public void displayHelp()
59 {
60 PrintWriter out = context.getWriter();
61
62 out.println(desc);
63 out.println();
64 out.println("usage: " + name + " [options]");
65 out.println();
66 out.println("options:");
67 out.println(" -d, --domain Get the default domain");
68 out.println(" -c, --count Get the MBean count");
69 out.println(" -l, --list List the MBeans");
70 out.println(" -- Stop processing options");
71 }
72
73 private void processArguments(final String [] args)
74 throws CommandException
75 {
76 log.debug("processing arguments: " + Strings.join(args, ","));
77
78 if (args.length == 0)
79 {
80 throw new CommandException("Command requires arguments");
81 }
82
83 String sopts = "-:dcl";
84 LongOpt[] lopts =
85 {
86 new LongOpt("domain", LongOpt.NO_ARGUMENT, null, 'd'),
87 new LongOpt("count", LongOpt.NO_ARGUMENT, null, 'c'),
88 new LongOpt("list", LongOpt.NO_ARGUMENT, null, 'l'),
89 };
90
91 Getopt getopt = new Getopt(null, args, sopts, lopts);
92 getopt.setOpterr(false);
93
94 int code;
95 while ((code = getopt.getopt()) != -1)
96 {
97 switch (code)
98 {
99 case ':':
100 throw new CommandException
101 ("Option requires an argument: "+ args[getopt.getOptind() - 1]);
102
103 case '?':
104 throw new CommandException
105 ("Invalid (or ambiguous) option: " + args[getopt.getOptind() - 1]);
106
107 case 1:
109 throw new CommandException("Unused argument: " + getopt.getOptarg());
110
111 case 'd':
112 mode = DEFAULT_DOMAIN;
113 break;
114
115 case 'c':
116 mode = MBEAN_COUNT;
117 break;
118 case 'l':
119 mode = LIST_NAMES;
120 break;
121 }
122 }
123 }
124
125 public void execute(String [] args) throws Exception
126 {
127 processArguments(args);
128
129 PrintWriter out = context.getWriter();
130 MBeanServerConnection server = getMBeanServer();
131
132
134 switch (mode)
135 {
136 case DEFAULT_DOMAIN:
137 out.println(server.getDefaultDomain());
138 break;
139
140 case MBEAN_COUNT:
141 out.println(server.getMBeanCount());
142 break;
143
144 case LIST_NAMES:
145 ObjectName all = new ObjectName ("*:*");
146 Set names = server.queryNames(all, null);
147 Iterator iter = names.iterator();
148 while( iter.hasNext() )
149 out.println(iter.next());
150 break;
151
152 default:
153 throw new IllegalStateException ("invalid mode: " + mode);
154 }
155
156 out.flush();
157 }
158 }
159 |
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