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.java;
30:
31: import com.caucho.java.JavaWriter;
32: import com.caucho.xml.QName;
33: import com.caucho.xsl.XslParseException;
34:
35: /**
36: * Represents any XSL node from the stylesheet.
37: */
38: public class XslIf extends XslNode {
39: private int _test = -1;
40:
41: /**
42: * Returns the tag name.
43: */
44: public String getTagName() {
45: return "xsl:if";
46: }
47:
48: /**
49: * Adds an attribute.
50: */
51: public void addAttribute(QName name, String value)
52: throws XslParseException {
53: if (name.getName().equals("test"))
54: _test = _gen.addExpr(parseExpr(value));
55: else
56: super .addAttribute(name, value);
57: }
58:
59: /**
60: * Ends the attributes.
61: */
62: public void endAttributes() throws XslParseException {
63: if (_test < 0)
64: throw error(L.l("xsl:if needs a 'test' attribute."));
65: }
66:
67: /**
68: * Generates the code for the tag
69: *
70: * @param out the output writer for the generated java.
71: */
72: public void generate(JavaWriter out) throws Exception {
73: out.print("if (");
74: printExprTest(out, _test, "node");
75: out.println(") {");
76: out.pushDepth();
77: generateChildren(out);
78: out.popDepth();
79: out.println("}");
80: }
81: }
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