def drawsimplegraph(req, rrdpathname, rrd, ds, rra, height=600, width=1200, start='default', end='default' ):
filename = Rrdpath.objects.get(name=str(rrdpathname)).path
fullfilename = filename + '/' + rrd
if os.path.isfile(fullfilename):
rrdobj = RRD(fullfilename, mode='r')
info = rrdobj.getData()
ds = str(ds)
rra = str(rra)
#step = info['step']
if (start == 'default'):
start = info['lastupdate'] - (7 * 86400)
if (end == 'default'):
end = info['lastupdate']
gitems = []
gitems.append(DEF(rrdfile=fullfilename, vname="fudge", dsName=ds))
gitems.append(CDEF(vname='kmh', rpn='%s' % gitems[0].vname))
gitems.append(AREA(defObj=gitems[1], color='#006600', legend=rrd+" "+str(start)+" "+str(end)))
g = Graph('-', imgformat='png', start=str(start), end=str(end), vertical_label=ds)
g.title = rrd + '/' + ds + '/' + rra
g.full_size_mode = True
g.only_graph = req.GET.get('onlygraph', False)
g.no_legend = req.GET.get('nolegend', True)
g.height = req.GET.get('height', 600)
g.width = req.GET.get('width', 1200)
g.data.extend(gitems)
a = g.write()
return HttpResponse(a,content_type="image/png")
def drawgraph(req, graphid):
now = int(time.time())
ginfo = Rrdgraph.objects.get(pk=graphid)
gobjects = GraphItems.objects.filter(graph__id=graphid).order_by('seq')
gitems = []
secondsago = secsago(req)
if secondsago == 0:
secondsago = 3600
# secsago = ginfo.timespan
end = int(req.GET.get('end', now))
start = int(req.GET.get('start', end - secondsago))
for gobject in gobjects: #cycle through graph items...need to order this above
if gobject.itemtype == 'S': #Handle Static RRD DataSources
rootdir = gobject.rrdds.rootdir.path
subpath = gobject.rrdds.subpath
rrdds = gobject.rrdds.ds
filename = rootdir + '/' + gobject.rrdds.subpath
rra = gobject.rra
namesuff = str(gobject.seq)
legendtext = subpath+" "+rrdds+" "+rra+ " "
gitems.append(DEF(rrdfile=filename, vname='d'+namesuff, dsName=rrdds))
gitems.append(CDEF(vname='c'+namesuff, rpn='%s' % 'd'+namesuff))
linetype = gobject.linetype.upper()
mycolor = '#' + gobject.color + gobject.transparency
if linetype == 'A':
gitems.append(AREA(value='c'+namesuff, color=mycolor, legend=legendtext, stack=gobject.stack))
elif linetype[:1] == 'L':
gitems.append(LINE(linetype[-1:], 'c'+namesuff, color=mycolor, legend=legendtext, stack=gobject.stack))
else:
gitems.append(LINE(0, 'c'+namesuff, color=mycolor, legend=legendtext, stack=gobject.stack))
if gobject.itemtype == 'R': #Handle Regex
regtextarr = gobject.option_text.rsplit(' ',2)
rrddslist = Rrdfiles.objects.filter(rootdir__name__regex=regtextarr[0]).filter(subpath__regex=regtextarr[1]).filter(ds__regex=regtextarr[2])
i = 0
colors = []
colorset = GraphItemColorCycleColor.objects.filter(name='weeee').order_by('seq')
for x in colorset:
colors.append(str('#' + x.color))
for rrdds in rrddslist:
rootdir = rrdds.rootdir.path
subpath = rrdds.subpath
rrdds = rrdds.ds
filename = rootdir + subpath
rra = gobject.rra
linetype = gobject.linetype.upper()
mycolor = colors[i % len(colors)]
namesuff = str(gobject.seq) + '_' + str(i)
legendtext = subpath+" "+rrdds+" ("+rra+ ") "
gitems.append(DEF(rrdfile=filename, vname='d'+namesuff, dsName=rrdds))
gitems.append(CDEF(vname='c'+namesuff, rpn='%s' % 'd'+namesuff))
if linetype == 'A':
gitems.append(AREA(value='c'+namesuff, color=mycolor, legend=legendtext, stack=gobject.stack))
elif linetype[:1] == 'L':
gitems.append(LINE(linetype[-1:], 'c'+namesuff, color=mycolor, legend=legendtext, stack=gobject.stack))
else:
gitems.append(LINE(0, 'c'+namesuff, color=mycolor, legend=legendtext, stack=gobject.stack))
prnFmt = '%6.2lf'
vdef = VDEF(vname='va'+namesuff, rpn='%s,AVERAGE' % ('d'+namesuff) )
gitems.append(vdef)
gitems.append(GPRINT(vdef, ('Avg\:'+prnFmt)))
vdef = VDEF(vname='vn'+namesuff, rpn='%s,MINIMUM' % ('d'+namesuff) )
gitems.append(vdef)
gitems.append(GPRINT(vdef, ('Min\:'+prnFmt)))
vdef = VDEF(vname='vx'+namesuff, rpn='%s,MAXIMUM' % ('d'+namesuff) )
gitems.append(vdef)
gitems.append(GPRINT(vdef, ('Max\:'+prnFmt)))
vdef = VDEF(vname='vl'+namesuff, rpn='%s,LAST' % ('d'+namesuff) )
gitems.append(vdef)
gitems.append(GPRINT(vdef, ('LAST\:'+prnFmt+'\\n')))
#gitems.append(COMMENT('\\n', False))
i = i + 1
if gobject.itemtype == 'C': #Handle Custom CDEFS
pass
if gobject.itemtype == 'V': #Handle Custom VDEFs
pass
cs = req.GET.get('cs', ginfo.gcolorscheme)
colsch = GraphColorScheme.objects.get(pk=cs)
ca = ColorAttributes()
ca.back = '#' + colsch.cback + colsch.tback
ca.canvas = '#' + colsch.ccanvas + colsch.tcanvas
ca.shadea = '#' + colsch.cshadea + colsch.tshadea
ca.shadeb = '#' + colsch.cshadeb + colsch.tshadeb
ca.mgrid = '#' + colsch.cmgrid + colsch.tmgrid
ca.axis = '#' + colsch.caxis + colsch.taxis
ca.frame = '#' + colsch.cframe + colsch.tframe
ca.font = '#' + colsch.cfont + colsch.tfont
ca.arrow = '#' + colsch.carrow + colsch.tarrow
#make a pyrrd Graph object, destination standard out (-)
g = Graph('-', imgformat='png', start=start, end=end, color=ca, vertical_label='"'+ginfo.vertical_label+'"')
#populate it with our url params, defaulting to Rrdgraph instance (ginfo) options
fullsizemode = req.GET.get('fullsizemode')
if (fullsizemode in ['0', 'False' , 'false', 'no', 'No']):
g.full_size_mode = False
else:
g.full_size_mode = True
graphonly = req.GET.get('graphonly')
if (graphonly in ['1', 'True' , 'true', 'yes']):
g.only_graph = True
noleg = req.GET.get('nolegend')
if (noleg in ['1', 'True' , 'true', 'yes']):
g.no_legend = True
log = req.GET.get('logarithmic')
if (log in ['1', 'True' , 'true', 'yes', 'Yes']):
g.logarithmic = True
elif (log in ['0', 'False' , 'false', 'no', 'No']):
g.logarithmic = False
else:
g.logarithmic = getattr(ginfo, 'logarithmic', False)
g.disable_rrdtool_tags = True
g.height = req.GET.get('height', 600)
g.width = req.GET.get('width', 1200)
g.title = '"'+ginfo.name+'"'
g.data.extend(gitems) #write in our gitems we generated
a = g.write() #gets the binary image finally
#minetype #just a thing to cause an error and debug
return HttpResponse(a,mimetype="image/png")
