HideRule


1   /*
2    * Copyright 2001-2004 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.betwixt.digester;
17  
18  import java.util.Set  ;
19  
20  import org.apache.commons.logging.Log;
21  import org.apache.commons.logging.LogFactory;
22  import org.xml.sax.Attributes  ;
23  import org.xml.sax.SAXException  ;
24  
25  /** <p><code>HideRule</code> hides the property of the given name.</p>
26    * 
27    * @author <a HREF="mailto:jstrachan@apache.org">James Strachan</a>
28    * @version $Revision: 1.9 $
29    */
30  public class HideRule extends RuleSupport {
31  
32      /** Logger */
33      private static final Log log = LogFactory.getLog( HideRule.class );
34      
35      /** Base constructor */    
36      public HideRule() {
37      }
38      
39      // Rule interface
40      //-------------------------------------------------------------------------    
41      
42      /**
43       * Process the beginning of this element.
44       *
45       * @param attributes The attribute list of this element
46       * @throws SAXException when the mandatory 'property' attribute is missing
47       */
48      public void begin(String   name, String   namespace, Attributes   attributes) throws SAXException   {
49          String   propertyAttributeValue = attributes.getValue( "property" );
50          if ( propertyAttributeValue == null || propertyAttributeValue.length() == 0 ) {
51              throw new SAXException  ( 
52                  "<hide> element is missing the mandatory attribute 'property'" );
53          }
54          Set   propertySet = getProcessedPropertyNameSet();
55          propertySet.add( propertyAttributeValue );
56      }
57  }
58
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