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Java > Open Source Codes > com > caucho > management > j2ee > JVM


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.management.j2ee;
31
32 import com.caucho.server.resin.Resin;
33 import com.caucho.server.util.CauchoSystem;
34
35 import javax.management.j2ee.statistics.BoundedRangeStatistic JavaDoc;
36 import javax.management.j2ee.statistics.CountStatistic JavaDoc;
37 import javax.management.j2ee.statistics.JVMStats JavaDoc;
38
39 /**
40  * Management interface for the JVM.
41  */
42 public class JVM
43   extends J2EEManagedObject
44   implements StatisticsProvider<JVMStats JavaDoc>
45 {
46   public JVM()
47   {
48   }
49
50   protected String JavaDoc getName()
51   {
52     String JavaDoc name = Resin.getLocal().getServerId();
53
54     return (name == null) ? "" : name;
55   }
56
57   protected boolean isJ2EEApplication()
58   {
59     return false;
60   }
61
62   /**
63    * Returns the java version
64    */
65   public String JavaDoc getJavaVersion()
66   {
67     return System.getProperty("java.version");
68   }
69
70   /**
71    * Returns the java vendor
72    */
73   public String JavaDoc getJavaVendor()
74   {
75     return System.getProperty("java.vendor");
76   }
77
78   /**
79    * Returns the machine the JVM is running on, i.e. the fully
80    * qualified hostname.
81    */
82   public String JavaDoc getNode()
83   {
84     return CauchoSystem.getLocalHost();
85   }
86
87   public JVMStats JavaDoc getStats()
88   {
89     return new JVMStatsImpl(this);
90   }
91
92   class JVMStatsImpl
93     extends StatsSupport
94     implements JVMStats JavaDoc
95   {
96     public JVMStatsImpl(J2EEManagedObject j2eeManagedObject)
97     {
98       super(j2eeManagedObject);
99     }
100
101     public BoundedRangeStatistic JavaDoc getHeapSize()
102     {
103       return new UnimplementedBoundedRangeStatistic("HeapSize");
104     }
105
106     public CountStatistic JavaDoc getUpTime()
107     {
108       return new UnimplementedCountStatistic("UpTime");
109     }
110   }
111 }
112
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