org.apache.hadoop.mapred
Class StatusHttpServer.TaskGraphServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.apache.hadoop.mapred.StatusHttpServer.TaskGraphServlet

All Implemented Interfaces:

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

Enclosing class:

StatusHttpServer

public static class StatusHttpServer.TaskGraphServlet
extends javax.servlet.http.HttpServlet

The servlet that outputs svg graphics for map / reduce task statuses

See Also:

Serialized Form

Field Summary

static int	height height of the graph w/o margins
static int	width height of the graph w/o margins
static int	xmargin margin space on x axis
static int	ymargin margin space on y axis

Constructor Summary

StatusHttpServer.TaskGraphServlet()

Method Summary

void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)

Methods inherited from class javax.servlet.http.HttpServlet

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

Field Detail

width

public static final int width

height of the graph w/o margins

See Also:

Constant Field Values

height

public static final int height

height of the graph w/o margins

See Also:

Constant Field Values

ymargin

public static final int ymargin

margin space on y axis

See Also:

Constant Field Values

xmargin

public static final int xmargin

margin space on x axis

See Also:

Constant Field Values

Constructor Detail

StatusHttpServer.TaskGraphServlet

public StatusHttpServer.TaskGraphServlet()

Method Detail

doGet

public void doGet(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws javax.servlet.ServletException,
                  IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException