package liquibase.util.xml;

 import org.w3c.dom.Document;

 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 java.io.IOException;

 import java.io.OutputStream;

 import java.io.OutputStreamWriter;

 public class DefaultXmlWriter implements XmlWriter {

     public void write(Document doc, OutputStream outputStream) throws IOException {

         try {

             TransformerFactory factory = TransformerFactory.newInstance();

             try {

                 factory.setAttribute("indent-number", 4);

             } catch (Exception e) {

                 ; // guess we can't set it, that's ok

             }

             Transformer transformer = factory.newTransformer();

             transformer.setOutputProperty(OutputKeys.METHOD, "xml");

             transformer.setOutputProperty(OutputKeys.INDENT, "yes");

             transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");

             // need to nest outputStreamWriter to get around JDK 5 bug. See

             // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6296446

             transformer.transform(new DOMSource(doc), new StreamResult(new OutputStreamWriter(outputStream, "utf-8")));

         } catch (TransformerException e) {

             throw new IOException(e.getMessage());

         }

     }

 }