def plots(request):
timeSeriesNamesString = request.GET.get('s')
requestParams = {}
if timeSeriesNamesString is not None:
if timeSeriesNamesString:
timeSeriesNames = timeSeriesNamesString.split(',')
else:
timeSeriesNames = []
requestParams['timeSeriesNames'] = timeSeriesNames
# sanity check
for name in timeSeriesNames:
if name not in meta.getTimeSeriesLookup():
return HttpResponseBadRequest('unknown time series %s' % name)
exportFields = (
'DATA_URL',
'XGDS_PLOT_DATA_SUBDIR',
'SCRIPT_NAME',
'XGDS_ZMQ_WEB_SOCKET_URL',
'XGDS_PLOT_LIVE_PLOT_HISTORY_LENGTH_MS',
'XGDS_PLOT_SEGMENT_RESOLUTION',
'XGDS_PLOT_MIN_DISPLAY_RESOLUTION',
'XGDS_PLOT_MIN_DATA_INTERVAL_MS',
'XGDS_PLOT_MAX_SEGMENT_LENGTH_MS',
'XGDS_PLOT_LIVE_MODE_DEFAULT',
'XGDS_PLOT_CHECK_FOR_NEW_DATA',
'XGDS_PLOT_TIME_OFFSET_HOURS',
'XGDS_PLOT_TIME_ZONE_NAME',
'XGDS_PLOT_LIVE_PLOT_FUTURE_TIME_MS',
)
exportSettings = dict(((k, getattr(settings, k)) for k in exportFields))
if request.META['wsgi.url_scheme'] == 'https':
# must use secure WebSockets if web site is secure
exportSettings['XGDS_ZMQ_WEB_SOCKET_URL'] = re.sub(
r'^ws:', 'wss:', exportSettings['XGDS_ZMQ_WEB_SOCKET_URL'])
return render(
request,
'xgds_plot/plots.html',
{
'settings': dumps(exportSettings),
'requestParams': dumps(requestParams)
},
)
def plots(request):
timeSeriesNamesString = request.GET.get('s')
requestParams = {}
if timeSeriesNamesString is not None:
if timeSeriesNamesString:
timeSeriesNames = timeSeriesNamesString.split(',')
else:
timeSeriesNames = []
requestParams['timeSeriesNames'] = timeSeriesNames
# sanity check
for name in timeSeriesNames:
if name not in meta.getTimeSeriesLookup():
return HttpResponseBadRequest('unknown time series %s' % name)
exportFields = ('DATA_URL',
'XGDS_PLOT_DATA_SUBDIR',
'SCRIPT_NAME',
'XGDS_ZMQ_WEB_SOCKET_URL',
'XGDS_PLOT_LIVE_PLOT_HISTORY_LENGTH_MS',
'XGDS_PLOT_SEGMENT_RESOLUTION',
'XGDS_PLOT_MIN_DISPLAY_RESOLUTION',
'XGDS_PLOT_MIN_DATA_INTERVAL_MS',
'XGDS_PLOT_MAX_SEGMENT_LENGTH_MS',
'XGDS_PLOT_LIVE_MODE_DEFAULT',
'XGDS_PLOT_CHECK_FOR_NEW_DATA',
'XGDS_PLOT_TIME_OFFSET_HOURS',
'XGDS_PLOT_TIME_ZONE_NAME',
'XGDS_PLOT_LIVE_PLOT_FUTURE_TIME_MS',
)
exportSettings = dict(((k, getattr(settings, k)) for k in exportFields))
if request.META['wsgi.url_scheme'] == 'https':
# must use secure WebSockets if web site is secure
exportSettings['XGDS_ZMQ_WEB_SOCKET_URL'] = re.sub(r'^ws:', 'wss:',
exportSettings['XGDS_ZMQ_WEB_SOCKET_URL'])
return render_to_response('xgds_plot/plots.html',
{'settings': dumps(exportSettings),
'requestParams': dumps(requestParams)},
context_instance=RequestContext(request))
def getStaticPlot(request, seriesId):
if seriesId not in meta.getTimeSeriesLookup():
return HttpResponseNotFound('<h1>404 No time series named "%s"</h1>' %
seriesId)
offset = datetime.timedelta(hours=settings.XGDS_PLOT_TIME_OFFSET_HOURS)
minTime = parseTime(request.GET.get('start', '-72'), offset)
maxTime = parseTime(request.GET.get('end', 'now'), offset)
assert minTime <= maxTime, 'HTTP GET parameters: start, end: start time must be before end time'
widthPix = int(request.GET.get('w', '800'))
heightPix = int(request.GET.get('h', '120'))
imgData = (staticPlot.getPlotDataMultiprocessing(seriesId, widthPix,
heightPix,
javaStyle(minTime),
javaStyle(maxTime)))
django.db.reset_queries() # clear query log to reduce memory usage
return HttpResponse(imgData, content_type='image/png')
def getStaticPlot(request, seriesId):
if seriesId not in meta.getTimeSeriesLookup():
return HttpResponseNotFound('<h1>404 No time series named "%s"</h1>' % seriesId)
offset = datetime.timedelta(hours=settings.XGDS_PLOT_TIME_OFFSET_HOURS)
minTime = parseTime(request.GET.get('start', '-72'), offset)
maxTime = parseTime(request.GET.get('end', 'now'), offset)
assert minTime <= maxTime, 'HTTP GET parameters: start, end: start time must be before end time'
widthPix = int(request.GET.get('w', '800'))
heightPix = int(request.GET.get('h', '120'))
imgData = (staticPlot.getPlotDataMultiprocessing
(seriesId,
widthPix,
heightPix,
javaStyle(minTime),
javaStyle(maxTime)))
django.db.reset_queries() # clear query log to reduce memory usage
return HttpResponse(imgData,
content_type='image/png')
