GWT XML Indenter/Formatter

So while I was working on one of my outreach projects as a graduate student, I wanted to write a simple XML indenter to make my GWT generated xml more aesthetically appealing using stock GWT. The xml document is assumed to be as lean as possible (There are no empty #text nodes that are usually in xml because of the indentation.)

I should also mention that I’m posting this because I didn’t really see any stock simple GWT indenters after a quick google. The following is not meant to be a complete indenter, just something quick and simple to organize xml.

Here’s a basic indenter.

 public String formatXML(Node node,String tab_str)
 {
  String formatted="";
 
  if (node.getNodeType()==Node.ELEMENT_NODE)
  {
   String attributes="";
   for (int k=0;k < node.getAttributes().getLength();k++)
    attributes+=" "+node.getAttributes().item(k).getNodeName()+"=\""+node.getAttributes().item(k).getNodeValue()+"\"";
 
   formatted=tab_str+"<"+node.getNodeName()+attributes+">\n";
 
   for (int i=0;i< node.getChildNodes().getLength();i++)
   {
    formatted=formatted+formatXML(node.getChildNodes().item(i),tab_str+"    ");
   }
   formatted=formatted+tab_str+"+node.getNodeName()+">\n";
  }
  else
  {
   if (node.toString().trim().length()>0)
    formatted=tab_str+node.toString()+"\n";
  }
 
  return formatted;
 }