Package org.opennms.web.controller

Class RrdGraphController

java.lang.Object

org.springframework.context.support.ApplicationObjectSupport

org.springframework.web.context.support.WebApplicationObjectSupport

org.springframework.web.servlet.support.WebContentGenerator

org.springframework.web.servlet.mvc.AbstractController

org.opennms.web.controller.RrdGraphController

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware, org.springframework.web.context.ServletContextAware, org.springframework.web.servlet.mvc.Controller

public class RrdGraphController
extends org.springframework.web.servlet.mvc.AbstractController

RrdGraphController class.

Is the front end handler of graph requests. Accepts start/end parameters that conform to the "specification" used by rrdfetch, as defined in it's manpage, or at http://oss.oetiker.ch/rrdtool/doc/rrdfetch.en.html Or at least, it should. If it doesn't, write a test and fix the code. NB; If the start/end are integers, they'll be interpreted as an epoch based timestamp This precludes some of the more compact forms available to rrdtool (e.g. just specifying an hour of the day without am/pm designator. But there are ways and means of working around that (specifying the time with hh:mm where mm is 00, or using am/pm; either will not parse as integers, resulting in evaluation by the rrdtool-alike parser.

Since:

1.8.1

Version:

$Id: $

Author:

ranger

Field Summary

Fields inherited from class org.springframework.web.servlet.support.WebContentGenerator

HEADER_CACHE_CONTROL, METHOD_GET, METHOD_HEAD, METHOD_POST

Fields inherited from class org.springframework.context.support.ApplicationObjectSupport

logger

Constructor Summary

Constructors

Constructor	Description
RrdGraphController()

Method Summary

Modifier and Type	Method	Description
RrdGraphService	getRrdGraphService()	getRrdGraphService
protected org.springframework.web.servlet.ModelAndView	handleRequestInternal(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
long[]	parseTimes(javax.servlet.http.HttpServletRequest request)
void	setRrdGraphService(RrdGraphService rrdGraphService)	setRrdGraphService

Methods inherited from class org.springframework.web.servlet.mvc.AbstractController

handleRequest, isSynchronizeOnSession, setSynchronizeOnSession

Methods inherited from class org.springframework.web.servlet.support.WebContentGenerator

applyCacheControl, applyCacheSeconds, applyCacheSeconds, cacheForSeconds, cacheForSeconds, checkAndPrepare, checkAndPrepare, checkRequest, getCacheControl, getCacheSeconds, getSupportedMethods, isAlwaysMustRevalidate, isRequireSession, isUseCacheControlHeader, isUseCacheControlNoStore, isUseExpiresHeader, prepareResponse, preventCaching, setAlwaysMustRevalidate, setCacheControl, setCacheSeconds, setRequireSession, setSupportedMethods, setUseCacheControlHeader, setUseCacheControlNoStore, setUseExpiresHeader

Methods inherited from class org.springframework.web.context.support.WebApplicationObjectSupport

getServletContext, getTempDir, getWebApplicationContext, initApplicationContext, initServletContext, isContextRequired, setServletContext

Methods inherited from class org.springframework.context.support.ApplicationObjectSupport

getApplicationContext, getMessageSourceAccessor, initApplicationContext, requiredContextClass, setApplicationContext

Methods inherited from class java.lang.Object

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

Constructor Detail

RrdGraphController

public RrdGraphController()

Method Detail

handleRequestInternal

protected org.springframework.web.servlet.ModelAndView handleRequestInternal(javax.servlet.http.HttpServletRequest request,
                                                                             javax.servlet.http.HttpServletResponse response)
                                                                      throws Exception

Specified by:

handleRequestInternal in class org.springframework.web.servlet.mvc.AbstractController

Throws:

Exception

parseTimes

public long[] parseTimes(javax.servlet.http.HttpServletRequest request)

getRrdGraphService

public RrdGraphService getRrdGraphService()

getRrdGraphService

Returns:

a RrdGraphService object.

setRrdGraphService

public void setRrdGraphService(RrdGraphService rrdGraphService)

setRrdGraphService

Parameters:

rrdGraphService - a RrdGraphService object.