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Java > Open Source Codes > org > tigris > scarab > util > Log


1 package org.tigris.scarab.util;
2
3 /* ================================================================
4  * Copyright (c) 2000-2002 CollabNet. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are
8  * met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution.
16  *
17  * 3. The end-user documentation included with the redistribution, if
18  * any, must include the following acknowlegement: "This product includes
19  * software developed by Collab.Net <http://www.Collab.Net/>."
20  * Alternately, this acknowlegement may appear in the software itself, if
21  * and wherever such third-party acknowlegements normally appear.
22  *
23  * 4. The hosted project names must not be used to endorse or promote
24  * products derived from this software without prior written
25  * permission. For written permission, please contact info@collab.net.
26  *
27  * 5. Products derived from this software may not use the "Tigris" or
28  * "Scarab" names nor may "Tigris" or "Scarab" appear in their names without
29  * prior written permission of Collab.Net.
30  *
31  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
32  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
33  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
34  * IN NO EVENT SHALL COLLAB.NET OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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38  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
39  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
40  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42  *
43  * ====================================================================
44  *
45  * This software consists of voluntary contributions made by many
46  * individuals on behalf of Collab.Net.
47  */
48
49 import org.apache.log4j.Logger;
50
51 /**
52  * A simple wrapper around a logger object to use to log to the
53  * org.tigris.scarab category.
54  *
55  * @author <a HREF="mailto:jmcnally@collab.net">John McNally</a>
56  * @version $Id: Log.java 7502 2003-03-28 00:02:24Z jon $
57  */
58 public abstract class Log
59 {
60     private static final Logger LOG =
61         Logger.getLogger("org.tigris.scarab");
62
63     public static final Logger get()
64     {
65         return LOG;
66     }
67
68     public static final Logger get(String JavaDoc s)
69     {
70         return Logger.getLogger(s);
71     }
72
73
74     /**
75      * Log free and total memory at DEBUG level. Invokes Runtime.gc() prior
76      * to taking memory snapshot.
77      */
78     public static String JavaDoc debugMemory()
79     {
80         Runtime JavaDoc rt = Runtime.getRuntime();
81         rt.gc();
82         long newtotal = rt.totalMemory();
83         long newfree = rt.freeMemory();
84
85         String JavaDoc m = "MEMORY Free=" + newfree + "; Total=" + newtotal + " bytes";
86         get().debug(m);
87         return m;
88     }
89 }
90
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