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.xsl.XslParseException;
33:
34: import java.util.ArrayList;
35:
36: /**
37: * Represents the xsl:choose element.
38: */
39: public class XslChoose extends XslNode {
40: private ArrayList<XslWhen> _tests = new ArrayList<XslWhen>();
41: private XslOtherwise _otherwise;
42:
43: /**
44: * Returns the tag name.
45: */
46: public String getTagName() {
47: return "xsl:choose";
48: }
49:
50: /**
51: * Adds a child node.
52: */
53: public void addChild(XslNode node) throws XslParseException {
54: if (node instanceof XslWhen) {
55: _tests.add((XslWhen) node);
56: } else if (node instanceof XslOtherwise) {
57: _otherwise = (XslOtherwise) node;
58: } else
59: super .addChild(node);
60: }
61:
62: /**
63: * Generates the code for the tag
64: *
65: * @param out the output writer for the generated java.
66: */
67: public void generate(JavaWriter out) throws Exception {
68: if (_tests.size() == 0) {
69: if (_otherwise != null)
70: _otherwise.generate(out);
71: } else {
72: for (int i = 0; i < _tests.size(); i++) {
73: if (i != 0)
74: out.print("else ");
75:
76: _tests.get(i).generate(out);
77: }
78:
79: if (_otherwise != null) {
80: out.print("else ");
81: _otherwise.generate(out);
82: }
83: }
84: }
85: }
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