Convert an XML Node in pipeline to String.

When dealing with content handlers the data will come in to the pipeline as an XML node object $contentStream. This code will help convert that xml node object to string and stream outputs.

Input: node, datatype: object
Output: outString, datatype: String & outStream, datatype: object

Import the below classes.

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Node;

Code:

IDataCursor pipelineCursor = pipeline.getCursor();
        Node node = (Node) IDataUtil.get( pipelineCursor, "node" );
        pipelineCursor.destroy();
        
        StringWriter sw = new StringWriter();
            try {
                
              Transformer t = TransformerFactory.newInstance().newTransformer();
              t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
              t.setOutputProperty(OutputKeys.INDENT, "yes");
              t.transform(new DOMSource(node), new StreamResult(sw));
              // convert to string debug...........
              String x=sw.toString();
              IDataUtil.put( pipelineCursor, "outStr", x);
             
              InputStream outStream = new ByteArrayInputStream(x.getBytes("UTF-8"));
              IDataUtil.put( pipelineCursor, "outStream", outStream);
              
            } catch (TransformerException e) {              
              IDataUtil.put( pipelineCursor, "outStr", e);
          } catch (UnsupportedEncodingException e) {
              IDataUtil.put( pipelineCursor, "outStr", e);
            }