KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > objectweb > cjdbc > common > monitor > backend > ActiveConnectionsCollector


1 /**
2  * C-JDBC: Clustered JDBC.
3  * Copyright (C) 2002-2005 French National Institute For Research In Computer
4  * Science And Control (INRIA).
5  * Contact: c-jdbc@objectweb.org
6  *
7  * This library is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU Lesser General Public License as published by the
9  * Free Software Foundation; either version 2.1 of the License, or any later
10  * version.
11  *
12  * This library is distributed in the hope that it will be useful, but WITHOUT
13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
15  * for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public License
18  * along with this library; if not, write to the Free Software Foundation,
19  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20  *
21  * Initial developer(s): Nicolas Modrzyk.
22  * Contributor(s):
23  */
24
25 package org.objectweb.cjdbc.common.monitor.backend;
26
27 import org.objectweb.cjdbc.common.i18n.Translate;
28 import org.objectweb.cjdbc.controller.backend.DatabaseBackend;
29
30 /**
31  * Return total of currently active connections on this backend
32  *
33  * @author <a HREF="mailto:Nicolas.Modrzyk@inrialpes.fr">Nicolas Modrzyk </a>
34  */
35 public class ActiveConnectionsCollector extends AbstractBackendDataCollector
36 {
37   private static final long serialVersionUID = -819859983753949567L;
38
39   /**
40    * new collector
41    *
42    * @param backendName of the backend
43    * @param virtualDatabaseName of the database
44    */
45   public ActiveConnectionsCollector(String JavaDoc backendName,
46       String JavaDoc virtualDatabaseName)
47   {
48     super(backendName, virtualDatabaseName);
49   }
50
51   /**
52    * Get total number of active connections on the given backend.
53    *
54    * @param backend backend
55    * @return total number of active connections
56    * @see org.objectweb.cjdbc.common.monitor.AbstractDataCollector#collectValue()
57    */
58   public long getValue(Object JavaDoc backend)
59   {
60     return ((DatabaseBackend) backend).getTotalActiveConnections();
61   }
62
63   /**
64    * @see org.objectweb.cjdbc.common.monitor.AbstractDataCollector#getDescription()
65    */
66   public String JavaDoc getDescription()
67   {
68     return Translate.get("monitoring.backend.active.connections");
69   }
70 }
Popular Tags