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

public class EventQueryServlet
extends javax.servlet.http.HttpServlet

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

Author:

Lawrence Karnowski , OpenNMS

See Also:

Serialized Form

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
EventQueryServlet()

Method Summary

Modifier and Type	Method and Description
void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.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 event filter.
protected AfterDateFilter	getAfterDateFilter(javax.servlet.http.HttpServletRequest request) getAfterDateFilter
protected BeforeDateFilter	getBeforeDateFilter(javax.servlet.http.HttpServletRequest request) getBeforeDateFilter
protected Date	getDateFromRequest(javax.servlet.http.HttpServletRequest request, String prefix) getDateFromRequest
protected String[]	getRequiredDateFields(String prefix) getRequiredDateFields
void	init() 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 servlet.

redirectUrl

protected String redirectUrl

The URL for the servlet. 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 javax.servlet.ServletException

init

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException - if any.

doGet

public void doGet(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws javax.servlet.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 event filter.

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

getBeforeDateFilter

protected BeforeDateFilter getBeforeDateFilter(javax.servlet.http.HttpServletRequest request)

getBeforeDateFilter

Parameters:

request - a HttpServletRequest object.

Returns:

a BeforeDateFilter object.

getAfterDateFilter

protected AfterDateFilter getAfterDateFilter(javax.servlet.http.HttpServletRequest request)

getAfterDateFilter

Parameters:

request - a HttpServletRequest object.

Returns:

a AfterDateFilter object.

getDateFromRequest

protected Date getDateFromRequest(javax.servlet.http.HttpServletRequest request,
                                  String prefix)
                           throws MissingParameterException

getDateFromRequest

Parameters:

request - a HttpServletRequest object.

prefix - a String object.

Returns:

a java$util$Date object.

Throws:

MissingParameterException - if any.

getRequiredDateFields

protected String[] getRequiredDateFields(String prefix)

getRequiredDateFields

Parameters:

prefix - a String object.

Returns:

an array of String objects.