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1   /*
2    * Copyright 2002,2004 The Apache Software Foundation.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.commons.jelly.tags.xml;
17  
18  import org.apache.commons.jelly.JellyTagException;
19  import org.apache.commons.jelly.TagSupport;
20  import org.apache.commons.jelly.XMLOutput;
21  
22  /*** Adds an XML attribute to the parent element tag like
23    * the <code>&lt;xsl:attribute&gt;</code> tag.
24    *
25    * @author James Strachan
26    * @version $Revision: 1.6 $
27    */
28  public class AttributeTag extends TagSupport {
29  
30      /*** the name of the attribute. */
31      private String name;
32  
33  
34      public AttributeTag() {
35      }
36  
37      // Tag interface
38      //-------------------------------------------------------------------------
39      public void doTag(XMLOutput output) throws JellyTagException {
40          ElementTag tag = (ElementTag) findAncestorWithClass( ElementTag.class );
41          if ( tag == null ) {
42              throw new JellyTagException( "<attribute> tag must be enclosed inside an <element> tag" );
43          }
44          tag.setAttributeValue( getName(), getBodyText( false ) );
45      }
46  
47      // Properties
48      //-------------------------------------------------------------------------
49  
50      /***
51       * @return the name of the attribute.
52       */
53      public String getName() {
54          return name;
55      }
56      /***
57       * Sets the name of the attribute
58       */
59      public void setName(String name) {
60          this.name = name;
61      }
62  }