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: * Free SoftwareFoundation, Inc.
23: * 59 Temple Place, Suite 330
24: * Boston, MA 02111-1307 USA
25: *
26: * @author Scott Ferguson
27: */
28:
29: package com.caucho.xsl.fun;
30:
31: import com.caucho.xpath.Expr;
32: import com.caucho.xpath.ExprEnvironment;
33: import com.caucho.xpath.XPathException;
34: import com.caucho.xpath.XPathFun;
35: import com.caucho.xpath.pattern.AbstractPattern;
36:
37: import org.w3c.dom.Node;
38:
39: import java.util.ArrayList;
40:
41: /**
42: * The system-property(...) function.
43: */
44: public class SystemPropertyFun extends XPathFun {
45: /**
46: * Evaluate the function.
47: *
48: * @param pattern The context pattern.
49: * @param args The evaluated arguments
50: */
51: public Object eval(Node node, ExprEnvironment env,
52: AbstractPattern pattern, ArrayList args)
53: throws XPathException {
54: if (args.size() < 1)
55: return "";
56:
57: String name = Expr.toString(args.get(0));
58:
59: if (name.equals("xsl:version"))
60: return new Double(1.0);
61: else if (name.equals("xsl:vendor"))
62: return "Caucho Technology";
63: else if (name.equals("xsl:vendor-url"))
64: return "http://www.caucho.com";
65: else
66: return System.getProperty(name);
67: }
68: }
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