package org.kuali.ole.deliver.util;
   
   import org.apache.xml.serialize.OutputFormat;
   import org.apache.xml.serialize.XMLSerializer;
   import org.w3c.dom.Document;
   import org.xml.sax.InputSource;
   import org.xml.sax.SAXException;
   
   import javax.xml.parsers.DocumentBuilder;
  import javax.xml.parsers.DocumentBuilderFactory;
  import javax.xml.parsers.ParserConfigurationException;
  import java.io.IOException;
  import java.io.StringReader;
  import java.io.StringWriter;
  import java.io.Writer;
  
  /**
   * Created by sheiksalahudeenm on 8/5/15.
   */
  public class XMLFormatterUtil {
  
      public static String formatContentForPretty(String content){
          try {
              final Document document = parseXmlFile(content);
              OutputFormat format = new OutputFormat(document);
              format.setLineWidth(65);
              format.setIndenting(true);
              format.setIndent(2);
              Writer out = new StringWriter();
              XMLSerializer serializer = new XMLSerializer(out, format);
              serializer.serialize(document);
              return out.toString();
          } catch (IOException e) {
              throw new RuntimeException(e);
          }
  
      }
  
      public static Document parseXmlFile(String in) {
          try {
              DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
              DocumentBuilder db = dbf.newDocumentBuilder();
              InputSource is = new InputSource(new StringReader(in));
              return db.parse(is);
          } catch (ParserConfigurationException e) {
              throw new RuntimeException(e);
          } catch (SAXException e) {
              throw new RuntimeException(e);
          } catch (IOException e) {
              throw new RuntimeException(e);
          }
      }
  }