XSLTransformer


1   package org.apache.slide.projector.processor.xml;
2   
3   import java.io.IOException  ;
4   
5   import javax.xml.transform.Transformer  ;
6   import javax.xml.transform.TransformerConfigurationException  ;
7   import javax.xml.transform.TransformerFactory  ;
8   import javax.xml.transform.stream.StreamSource  ;
9   
10  import org.apache.slide.projector.ConfigurableProcessor;
11  import org.apache.slide.projector.ConfigurationException;
12  import org.apache.slide.projector.Context;
13  import org.apache.slide.projector.descriptor.ParameterDescriptor;
14  import org.apache.slide.projector.descriptor.ResultEntryDescriptor;
15  import org.apache.slide.projector.descriptor.XMLValueDescriptor;
16  import org.apache.slide.projector.i18n.DefaultMessage;
17  import org.apache.slide.projector.i18n.ErrorMessage;
18  import org.apache.slide.projector.i18n.ParameterMessage;
19  import org.apache.slide.projector.processor.SimpleProcessor;
20  import org.apache.slide.projector.value.DocumentValue;
21  import org.apache.slide.projector.value.StreamableValue;
22  import org.apache.slide.projector.value.Value;
23  import org.jdom.Document;
24  import org.jdom.transform.JDOMResult;
25  import org.jdom.transform.JDOMSource;
26  
27  /**
28   * @version $Revision: 1.3 $
29   */
30  
31  public class XSLTransformer extends SimpleProcessor implements ConfigurableProcessor {
32      private Transformer   transformer;
33  
34      public Value process(Value input, Context context) throws Exception   {
35          Document document = ((DocumentValue)input).getDocument();
36          JDOMResult result = new JDOMResult();
37          transformer.transform(new JDOMSource(document), result);
38          return new DocumentValue(result.getDocument());
39      }
40  
41      public ParameterDescriptor getParameterDescriptor() {
42          return new ParameterDescriptor(INPUT, new ParameterMessage("xslTransformer/parameter/input"), new XMLValueDescriptor());
43      }
44  
45      public ResultEntryDescriptor getResultEntryDescriptor() {
46          return new ResultEntryDescriptor(OUTPUT, new DefaultMessage("xslTransformer/result/output"), "text/xml", true);
47      }
48  
49      public void configure(StreamableValue config) throws ConfigurationException   {
50          try {
51              transformer = TransformerFactory.newInstance().newTransformer(new StreamSource  (config.getInputStream()));
52          } catch (TransformerConfigurationException   e) {
53              throw new ConfigurationException  (new ErrorMessage("xslTransformer/creationgFailed"), e);
54          } catch (IOException   e) {
55              throw new ConfigurationException  (new ErrorMessage("xslTransformer/ioException"), e);
56          }
57      }
58  }
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags