LogicsheetFilter


1   /*
2    * Copyright 1999-2005 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.cocoon.components.language.markup;
17  
18  import org.xml.sax.SAXException  ;
19  import org.xml.sax.XMLReader  ;
20  import org.xml.sax.helpers.XMLFilterImpl  ;
21  
22  import java.util.Map  ;
23  
24  /**
25   * This filter listen for source SAX events, and registers all declared
26   * namespaces into a <code>Map</code> object.
27   *
28   * @see org.xml.sax.XMLFilter
29   * @see org.xml.sax.ContentHandler
30   * @version $Id: LogicsheetFilter.java 306625 2005-10-06 13:07:58Z vgritsenko $
31   */
32  public class LogicsheetFilter extends XMLFilterImpl   {
33      private Map   namespaces;
34  
35      /**
36       * The filter needs an initialized <code>Map</code> object where it
37       * can store the found namespace declarations.
38       * @param originalNamepaceURIs a initialized <code>Map</code> instance.
39       */
40      public void setNamespaceMap(Map   originalNamepaceURIs) {
41          this.namespaces = originalNamepaceURIs;
42      }
43  
44      public void setParent(XMLReader   reader) {
45          super.setParent(reader);
46          reader.setContentHandler(this);
47      }
48  
49      public void startPrefixMapping(String   prefix, String   uri)
50      throws SAXException   {
51          if (namespaces != null) {
52              namespaces.put(uri, prefix);
53          }
54          super.startPrefixMapping(prefix, uri);
55      }
56  }
57
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