org.opennms.web.event
Class EventQueryServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.opennms.web.event.EventQueryServlet

All Implemented Interfaces:

Serializable, Servlet, ServletConfig

public class EventQueryServlet
extends HttpServlet

This servlet takes a large and specific request parameter set and maps it to the more robust "filter" parameter set of the EventFilterServletvia a redirect.

Author:

Lawrence Karnowski , OpenNMS

See Also:

Serialized Form

Field Summary

protected static String[]	IGNORE_LIST The list of parameters that are extracted by this servlet and not passed on to the EventFilterServlet.
protected String	redirectUrl The URL for the EventFilterServlet.

Constructor Summary

EventQueryServlet()

Method Summary

void	doGet(HttpServletRequest request, HttpServletResponse response) Extracts the key parameters from the parameter set, translates them into filter-based parameters, and then passes the modified parameter set to the EventFilterServlet.
protected AfterDateFilter	getAfterDateFilter(HttpServletRequest request)
protected BeforeDateFilter	getBeforeDateFilter(HttpServletRequest request)
protected Date	getDateFromRequest(HttpServletRequest request, String prefix)
protected String[]	getRequiredDateFields(String prefix)
void	init()

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, log, log

Methods inherited from class java.lang.Object

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

Field Detail

IGNORE_LIST

protected static String[] IGNORE_LIST

The list of parameters that are extracted by this servlet and not passed on to the EventFilterServlet.

redirectUrl

protected String redirectUrl

The URL for the EventFilterServlet. The default is "list." This URL is a sibling URL, so it is relative to the URL directory that was used to call this servlet (usually "event/").

Constructor Detail

EventQueryServlet

public EventQueryServlet()

Method Detail

init

public void init()
          throws ServletException

Overrides:

init in class GenericServlet

Throws:

ServletException

doGet

public void doGet(HttpServletRequest request,
                  HttpServletResponse response)
           throws ServletException,
                  IOException

Extracts the key parameters from the parameter set, translates them into filter-based parameters, and then passes the modified parameter set to the EventFilterServlet.

Overrides:

doGet in class HttpServlet

Throws:

ServletException

IOException

getBeforeDateFilter

protected BeforeDateFilter getBeforeDateFilter(HttpServletRequest request)

getAfterDateFilter

protected AfterDateFilter getAfterDateFilter(HttpServletRequest request)

getDateFromRequest

protected Date getDateFromRequest(HttpServletRequest request,
                                  String prefix)
                           throws MissingParameterException

Throws:

MissingParameterException

getRequiredDateFields

protected String[] getRequiredDateFields(String prefix)