PWCThreadPoolStats


1   /*
2    * The contents of this file are subject to the terms 
3    * of the Common Development and Distribution License 
4    * (the License).  You may not use this file except in
5    * compliance with the License.
6    * 
7    * You can obtain a copy of the license at 
8    * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9    * glassfish/bootstrap/legal/CDDLv1.0.txt.
10   * See the License for the specific language governing 
11   * permissions and limitations under the License.
12   * 
13   * When distributing Covered Code, include this CDDL 
14   * Header Notice in each file and include the License file 
15   * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
16   * If applicable, add the following below the CDDL Header, 
17   * with the fields enclosed by brackets [] replaced by
18   * you own identifying information: 
19   * "Portions Copyrighted [year] [name of copyright owner]"
20   * 
21   * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22   */
23  
24  /*
25   * Copyright 2004-2005 Sun Microsystems, Inc.  All rights reserved.
26   * Use is subject to license terms.
27   */
28  
29  /*
30   * PWCThreadPoolStats.java
31   *
32   * Created on April 2, 2004, 10:19 AM
33   */
34  
35  package com.sun.enterprise.admin.monitor.stats;
36  
37  /**
38   *
39   * @author  nsegura
40   */
41  import javax.management.j2ee.statistics.Stats  ;
42  import javax.management.j2ee.statistics.CountStatistic  ;
43  import com.sun.enterprise.admin.monitor.stats.StringStatistic;
44  
45  /** 
46   * Returns the statistical information associated with 
47   * the HttpService thread pool 
48   */
49  public interface PWCThreadPoolStats extends Stats   {
50      
51      /** 
52       * Returns the thread pool Id
53       * @return id
54       */    
55      public StringStatistic getId();
56      
57      /** 
58       * Returns the number of threads that are currently idle
59       * @return idle threads
60       */    
61      public CountStatistic   getCountThreadsIdle();
62      
63      /** 
64       * Returns current number of threads
65       * @return current threads
66       */    
67      public CountStatistic   getCountThreads();
68      
69      /** 
70       * Returns the maximum number of native threads allowed in the thread pool
71       * @return max number of threads allowed
72       */    
73      public CountStatistic   getMaxThreads();
74      
75      /** 
76       * Returns the current number of requests waiting for a native thread
77       * @return queued requests
78       */    
79      public CountStatistic   getCountQueued();
80      
81      /** 
82       * Returns the highest number of requests that were ever queued up
83       * simultaneously for the use of a native thread since the server
84       * was started
85       */    
86      public CountStatistic   getPeakQueued();
87      
88      /** 
89       * Returns the maximum number of requests that can be queued at one
90       * time to wait for a native thread
91       * @return max number of request to be queued
92       */    
93      public CountStatistic   getMaxQueued();
94      
95  }
96
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