SourceDataHandlerSerializer


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  
17  package org.apache.axis.encoding.ser;
18  
19  import org.apache.axis.attachments.SourceDataSource;
20  import org.apache.axis.components.logger.LogFactory;
21  import org.apache.axis.encoding.SerializationContext;
22  import org.apache.axis.utils.Messages;
23  import org.apache.commons.logging.Log;
24  import org.xml.sax.Attributes  ;
25  
26  import javax.activation.DataHandler  ;
27  import javax.xml.namespace.QName  ;
28  import javax.xml.transform.stream.StreamSource  ;
29  import java.io.IOException  ;
30  
31  /**
32   * SourceDataHandler Serializer
33   * @author Russell Butek (butek@us.ibm.com)
34   */
35  public class SourceDataHandlerSerializer extends JAFDataHandlerSerializer {
36  
37      protected static Log log =
38          LogFactory.getLog(SourceDataHandlerSerializer.class.getName());
39  
40      /**
41       * Serialize a Source DataHandler quantity.
42       */
43      public void serialize(QName   name, Attributes   attributes,
44                            Object   value, SerializationContext context)
45          throws IOException  
46      {
47          if (value != null) {
48              if (!(value instanceof StreamSource  )) {
49                  throw new IOException  (Messages.getMessage("badSource",
50                          value.getClass().getName()));
51              }
52              DataHandler   dh = new DataHandler  (new SourceDataSource("source",
53                      "text/xml", (StreamSource  ) value));
54              super.serialize(name, attributes, dh, context);
55          }
56      } // serialize
57  } // class SourceDataHandlerSerializer
58
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