org.jcoderz.phoenix.servlet
Class PingServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.jcoderz.phoenix.servlet.PingServlet

All Implemented Interfaces:

Serializable, Servlet, ServletConfig

public final class PingServlet
extends HttpServlet

This servlet sends a simple ping to the given host and returns a 1 pixel image with a color representing the host status.

Author:

Andreas Mandel

See Also:

Serialized Form

web.servlet

name="ping"

web.servlet-mapping

url-pattern="/ping/*"

Field Summary

static String	DATE_TIME_FORMAT The format used to write date values.
static TimeZone	TIME_ZONE Timezone used by the protocol.

Constructor Summary

PingServlet()

Method Summary

protected org.jcoderz.phoenix.servlet.PingServlet.PingResult	check(String host)
protected void	doGet(HttpServletRequest req, HttpServletResponse rsp)
protected void	doPost(HttpServletRequest req, HttpServletResponse rsp)
protected static long	ping(InetAddress host)
protected static long	ping(String hostname)

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, 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

TIME_ZONE

public static final TimeZone TIME_ZONE

Timezone used by the protocol.

DATE_TIME_FORMAT

public static final String DATE_TIME_FORMAT

The format used to write date values.

See Also:

Constant Field Values

Constructor Detail

PingServlet

public PingServlet()

Method Detail

doPost

protected void doPost(HttpServletRequest req,
                      HttpServletResponse rsp)
               throws IOException

Overrides:

doPost in class HttpServlet

Throws:

IOException

doGet

protected void doGet(HttpServletRequest req,
                     HttpServletResponse rsp)
              throws IOException

Overrides:

doGet in class HttpServlet

Throws:

IOException

check

protected org.jcoderz.phoenix.servlet.PingServlet.PingResult check(String host)

ping

protected static long ping(String hostname)

ping

protected static long ping(InetAddress host)