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Java > Open Source Codes > com > caucho > xsl > java > XslElement


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * 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 the generation of an XSL node.
37  */
38 public class XslElement extends XslNode {
39   private String JavaDoc _name;
40   private String JavaDoc _namespace;
41
42   /**
43    * Adds an attribute.
44    */
45   public void addAttribute(QName name, String JavaDoc value)
46     throws XslParseException
47   {
48     if (name.getName().equals("name"))
49       _name = value;
50     else if (name.getName().equals("namespace"))
51       _namespace = value;
52     else if (name.getName().equals("use-attribute-sets")) {
53       XslUseAttributeSets attr = new XslUseAttributeSets(value);
54       
55       attr.setGenerator(_gen);
56     
57       addChild(attr);
58     }
59     else
60       super.addAttribute(name, value);
61   }
62
63   /**
64    * Ends the attributes.
65    */
66   public void endAttributes()
67     throws XslParseException
68   {
69     if (_name == null)
70       throw error(L.l("xsl:element needs a 'name' attribute."));
71   }
72
73   /**
74    * Generates the code for the tag
75    *
76    * @param out the output writer for the generated java.
77    */
78   public void generate(JavaWriter out)
79     throws Exception JavaDoc
80   {
81     if (_namespace != null) {
82       out.print("out.pushElementNs(");
83
84       generateString(out, _name, '+');
85       
86       out.print(", ");
87       generateString(out, _namespace, '+');
88       out.println(");");
89     }
90     else {
91       out.print("out.pushElement(");
92
93       generateString(out, _name, '+');
94
95       if (getOutputNamespace() != null) {
96     out.print(", ");
97     printNamespace(out, getOutputNamespace());
98       }
99     
100       out.println(");");
101     }
102     
103     generateChildren(out);
104     
105     out.println("out.popElement();");
106   }
107 }
108
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