content: package com.pivotallabs.api;
  
  import org.w3c.dom.Document;
  import org.w3c.dom.Element;
  import org.w3c.dom.NodeList;
  import org.xml.sax.SAXException;
  
  import javax.xml.parsers.DocumentBuilderFactory;
  import javax.xml.parsers.ParserConfigurationException;
  import java.io.IOException;
  import java.io.InputStream;
  
  public class Xmls {
  
      public static Document getDocument(InputStream xmlStream) throws SAXException, IOException, ParserConfigurationException {
          Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(xmlStream, "UTF-8");
          document.normalize();
          return document;
      }
  
      public static Element getElement(Document document, String tagName, int index) {
          return (Element) document.getElementsByTagName(tagName).item(index);
      }
  
      public static String getTextContentOfChild(Element element, String childTagName) {
          return getText(element.getElementsByTagName(childTagName));
      }
  
      public static String getTextContentOfChild(Document document, String childTagName) {
          return getText(document.getElementsByTagName(childTagName));
      }
  
      private static String getText(NodeList nodeList) {
          return nodeList.item(0).getFirstChild().getNodeValue();
      }
  }
  