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Java > Open Source Codes > org > continuent > sequoia > common > jmx > monitoring > virtualdatabase > DatabaseThreadsCollector


1 /**
2  * Sequoia: Database clustering technology.
3  * Copyright (C) 2002-2004 French National Institute For Research In Computer
4  * Science And Control (INRIA).
5  * Copyright (C) 2005 AmicoSoft, Inc. dba Emic Networks
6  * Contact: sequoia@continuent.org
7  *
8  * Licensed under the Apache License, Version 2.0 (the "License");
9  * you may not use this file except in compliance with the License.
10  * You may obtain a copy of the License at
11  *
12  * http://www.apache.org/licenses/LICENSE-2.0
13  *
14  * Unless required by applicable law or agreed to in writing, software
15  * distributed under the License is distributed on an "AS IS" BASIS,
16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17  * See the License for the specific language governing permissions and
18  * limitations under the License.
19  *
20  * Initial developer(s): Nicolas Modrzyk.
21  * Contributor(s):
22  */

23
24 package org.continuent.sequoia.common.jmx.monitoring.virtualdatabase;
25
26 import org.continuent.sequoia.common.i18n.Translate;
27 import org.continuent.sequoia.controller.virtualdatabase.VirtualDatabase;
28
29 /**
30  * Count total of threads used by a <code>VirtualDatabase</code>
31  *
32  * @author <a HREF="mailto:Nicolas.Modrzyk@inrialpes.fr">Nicolas Modrzyk</a>
33  */

34 public class DatabaseThreadsCollector
35     extends AbstractVirtualDatabaseDataCollector
36 {
37
38   private static final long serialVersionUID = 4493564478281769842L;
39
40   /**
41    * create collector
42    *
43    * @param virtualDatabaseName to get info from
44    */

45   public DatabaseThreadsCollector(String JavaDoc virtualDatabaseName)
46   {
47     super(virtualDatabaseName);
48   }
49
50   /**
51    * @see org.continuent.sequoia.common.jmx.monitoring.AbstractDataCollector#collectValue()
52    */

53   public long getValue(Object JavaDoc database)
54   {
55     return ((VirtualDatabase) database).getCurrentNbOfThreads();
56   }
57
58   /**
59    * @see org.continuent.sequoia.common.jmx.monitoring.AbstractDataCollector#getDescription()
60    */

61   public String JavaDoc getDescription()
62   {
63     return Translate.get("monitoring.virtualdatabase.threads.count"); //$NON-NLS-1$
64
}
65 }
66
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