org.apache.hadoop.yarn.webapp
Class Dispatcher

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.apache.hadoop.yarn.webapp.Dispatcher

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

@InterfaceAudience.LimitedPrivate(value={"YARN","MapReduce"})
public class Dispatcher
extends javax.servlet.http.HttpServlet

The servlet that dispatch request to various controllers according to the user defined routes in the router.

See Also:

Serialized Form

Method Summary

void	doOptions(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
static void	redirectToErrorPage(javax.servlet.http.HttpServletResponse res, Throwable e, String path, boolean devMode)
static void	removeCookie(javax.servlet.http.HttpServletResponse res, String name, String path)
static void	removeErrorCookies(javax.servlet.http.HttpServletResponse res, String path)
void	service(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
void	setDevMode(boolean choice)

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doGet, doHead, doPost, doPut, doTrace, getLastModified, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

doOptions

public void doOptions(javax.servlet.http.HttpServletRequest req,
                      javax.servlet.http.HttpServletResponse res)

Overrides:

doOptions in class javax.servlet.http.HttpServlet

service

public void service(javax.servlet.http.HttpServletRequest req,
                    javax.servlet.http.HttpServletResponse res)
             throws javax.servlet.ServletException,
                    IOException

Overrides:

service in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

redirectToErrorPage

public static void redirectToErrorPage(javax.servlet.http.HttpServletResponse res,
                                       Throwable e,
                                       String path,
                                       boolean devMode)

removeErrorCookies

public static void removeErrorCookies(javax.servlet.http.HttpServletResponse res,
                                      String path)

removeCookie

public static void removeCookie(javax.servlet.http.HttpServletResponse res,
                                String name,
                                String path)

setDevMode

public void setDevMode(boolean choice)