EmptyEntityResolver


1   package org.directwebremoting.util;
2   
3   import java.io.IOException  ;
4   import java.io.StringReader  ;
5   
6   import org.directwebremoting.impl.DefaultPageNormalizer;
7   import org.xml.sax.EntityResolver  ;
8   import org.xml.sax.InputSource  ;
9   import org.xml.sax.SAXException  ;
10  
11  /**
12   * An EntityResolver for use when you don't want to do any entity resolving.
13   * <p>I think this is technically a violation of all sorts of things because the
14   * DTD affects how a document is parsed, and this just dumps all DTDs. However
15   * when you are not interested in validity, you just want to get informaion when
16   * you know that the DTD won't affect the documnent, this could be useful.
17   * @author Joe Walker [joe at getahead dot ltd dot uk]
18   */
19  public class EmptyEntityResolver implements EntityResolver  
20  {
21      /* (non-Javadoc)
22       * @see org.xml.sax.EntityResolver#resolveEntity(java.lang.String, java.lang.String)
23       */
24      public InputSource   resolveEntity(String   publicId, String   systemId) throws SAXException  , IOException  
25      {
26          log.debug("resolveEntity(publicId=" + publicId + ", systemId=" + systemId + ") returning null");
27  
28          InputSource   is = new InputSource  (new StringReader  (""));
29          is.setPublicId(publicId);
30          is.setSystemId(systemId);
31  
32          return is;
33      }
34  
35      /**
36       * The log stream
37       */
38      private static final Logger log = Logger.getLogger(DefaultPageNormalizer.class);
39  }
40

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