XslNamespaceAlias


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   * the xsl:namespace-alias tag
37   */
38  public class XslNamespaceAlias extends XslNode implements XslTopNode {
39    private String   _stylesheetPrefix;
40    private String   _resultPrefix;
41    
42    /**
43     * Returns the tag name.
44     */
45    public String   getTagName()
46    {
47      return "xsl:namespace-alias";
48    }
49    
50    /**
51     * Adds an attribute.
52     */
53    public void addAttribute(QName name, String   value)
54      throws XslParseException
55    {
56      if (name.getName().equals("stylesheet-prefix")) {
57        _stylesheetPrefix = value;
58      }
59      else if (name.getName().equals("result-prefix")) {
60        _resultPrefix = value;
61      }
62      else
63        super.addAttribute(name, value);
64    }
65    
66    /**
67     * called at end of the attributes
68     */
69    public void endAttributes()
70      throws XslParseException
71    {
72      if (_stylesheetPrefix == null)
73        throw error(L.l("'stylesheet-prefix' is a required attribute of <xsl:namespace-alias>"));
74      if (_resultPrefix == null)
75        throw error(L.l("'result-prefix' is a required attribute of <xsl:namespace-alias>"));
76    }
77  
78    /**
79     * Called when the element ends.
80     */
81    public void endElement()
82      throws Exception  
83    {
84      String   stylesheetNs = getNamespace(_stylesheetPrefix);
85      
86      if (_stylesheetPrefix.equals("#default"))
87        stylesheetNs = "";
88      else if (stylesheetNs.equals(""))
89        throw error(L.l("'{0}' is not a valid namespace prefix",
90                _stylesheetPrefix));
91      
92      String   resultNs = getNamespace(_resultPrefix);
93      if (_resultPrefix.equals("#default")) {
94        _resultPrefix = "";
95        resultNs = "";
96      }
97      else if (resultNs == null)
98        throw error(L.l("'{0}' is not a valid namespace prefix",
99                _resultPrefix));
100     
101     String   result[] = new String  [] { _resultPrefix, resultNs };
102 
103     _gen.addNamespaceAlias(stylesheetNs, result);
104   }
105 
106   /**
107    * Generates the code for the tag
108    *
109    * @param out the output writer for the generated java.
110    */
111   public void generate(JavaWriter out)
112     throws Exception  
113   {
114   }
115 }
116
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags