How to use

getServletContext

method

in

org.apache.hadoop.hdfs.server.namenode.FsckServlet

final InetAddress remoteAddress = 
 InetAddress.getByName(request.getRemoteAddr());
final ServletContext context = getServletContext();    
final Configuration conf = NameNodeHttpServer.getConfFromContext(context);

 @SuppressWarnings("unchecked")
 public void doGet(HttpServletRequest request,
          HttpServletResponse response
          ) throws ServletException, IOException {
  Map<String,String[]> pmap = request.getParameterMap();
  ServletContext context = getServletContext();
  NameNode nn = (NameNode) context.getAttribute("name.node");
  Configuration conf = (Configuration) context.getAttribute("name.conf");
  NamenodeFsck fscker = new NamenodeFsck(conf, nn, pmap, response);
  fscker.fsck();
 }
}

final InetAddress remoteAddress = 
 InetAddress.getByName(request.getRemoteAddr());
final ServletContext context = getServletContext();    
final Configuration conf = NameNodeHttpServer.getConfFromContext(context);

 @SuppressWarnings("unchecked")
 public void doGet(HttpServletRequest request,
          HttpServletResponse response
          ) throws ServletException, IOException {
  Map<String,String[]> pmap = request.getParameterMap();
  try {
   ServletContext context = getServletContext();
   NameNode nn = (NameNode) context.getAttribute("name.node");
   Configuration conf = (Configuration) context.getAttribute("name.conf");
   NamenodeFsck fscker = new NamenodeFsck(conf, nn, pmap, response);
   fscker.fsck();
  } catch (IOException ie) {
   StringUtils.stringifyException(ie);
   LOG.warn(ie);
   String errMsg = "Fsck on path " + pmap.get("path") + " failed.";
   response.sendError(HttpServletResponse.SC_GONE, errMsg);
   throw ie;
  }
 }
}

final InetAddress remoteAddress = 
 InetAddress.getByName(request.getRemoteAddr());
final ServletContext context = getServletContext();    
final Configuration conf = NameNodeHttpServer.getConfFromContext(context);