01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * 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.server.util;
31:
32: import java.util.logging.Level;
33: import java.util.logging.Logger;
34:
35: /**
36: * A wrapper for Caucho system variables, allowing tests to override
37: * the default variables.
38: */
39: public class JniCauchoSystem {
40: private static Logger log = Logger.getLogger(JniCauchoSystem.class
41: .getName());
42:
43: private static JniCauchoSystem _system;
44:
45: protected JniCauchoSystem() {
46: }
47:
48: public static JniCauchoSystem create() {
49: synchronized (JniCauchoSystem.class) {
50: if (_system == null) {
51: try {
52: Class cl = Class
53: .forName("com.caucho.server.util.JniCauchoSystemImpl");
54:
55: _system = (JniCauchoSystem) cl.newInstance();
56: } catch (Throwable e) {
57: log.log(Level.FINEST, e.toString(), e);
58: }
59:
60: if (_system == null)
61: _system = new JniCauchoSystem();
62: }
63:
64: return _system;
65: }
66: }
67:
68: /**
69: * Returns true if we're currently running a test.
70: */
71: public double getLoadAvg() {
72: return 0;
73: }
74: }
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