def post(self, dataName):
"""
ref: web_api.yaml
:param dataName:
:return:
"""
data_name = utils.encode_if_unicode(dataName)
data_service = DataService(data_name)
if data_service.exists():
return self.render(msg='%s is exists' % data_name, status=422)
if len(request.files) < 1:
return self.render(msg='expect file input', status=422)
upload_file = request.files.values()[0]
try:
# parses the incoming csv into long format
# points, time_formatter = self._parse_file(upload_file) # parse data in csv
points, time_formatter = self._parse_file_pd(
upload_file) # parse data in csv
except Exception as e:
return self.render(msg=e.message, status=422)
if len(points) < 2:
return self.render(msg='at least 2 point', status=422)
timestamps = np.asarray(sorted(points.keys()))
periods = np.diff(timestamps)
period = int(np.median(periods))
start_time = utils.ifloor(timestamps.min(), period)
end_time = utils.ifloor(timestamps.max(), period) + period
# # drop those points not divisible by period
# data_raw = []
# data_raw_list = []
# in_points = 0
# for timestamp in range(start_time, end_time, period):
# if timestamp in points:
# point = points[timestamp]
# data_raw.append(
# Raw(timestamp=point[0], value=point[1], label=point[2]))
# data_raw_list.append((point[0], point[1], None))
# in_points += 1
# else:
# data_raw.append(Raw(timestamp=timestamp))
# data_raw_list.append((timestamp, None, None))
# use raw points regardless of divisibility by period
data_raw = []
data_raw_list = []
for timestamp, point in points.iteritems():
data_raw.append(
Raw(timestamp=point[0], value=point[1], label=point[2]))
data_raw_list.append((point[0], point[1], None))
logger.debug("""
start_time: {},
end_time: {},
period: {}""".format(start_time, end_time, period))
plugin = Plugin(data_service)
try:
_, (axis_min,
axis_max) = plugin('y_axis',
data_raw_list) # cal y_axis for data
except Exception as e:
logger.error(
"Error implementing 'y_axis' plugin\nError: {}".format(
e.message))
raise e
data_abstract = DataAbstract( # save abstract for data
start_time=start_time,
end_time=end_time,
y_axis_min=axis_min,
y_axis_max=axis_max,
period=period,
period_ratio=len(periods[periods == period]) * 1. / len(periods),
label_ratio=sum([1 for point in data_raw if point.label]) * 1. /
len(data_raw),
time_formatter=time_formatter.__name__)
data_service.abstract = data_abstract
try:
_, thumb = plugin('sampling', data_raw_list,
config.SAMPLE_PIXELS) # init thumb for data
except Exception as e:
logger.error("Error calling 'sampling' plugin\nError: {}".format(
e.message))
raise e
thumb = Thumb(thumb=json.dumps(
{
'msg': 'OK',
'server': request.host,
'traceId': '',
'data': {
'data': [(point[0] * 1000, point[1]) for point in thumb],
'name': 'thumb',
'type': 'line'
}
},
ensure_ascii=False))
refs = plugin('reference', data_raw_list) # init ref for data
bands = plugin('init_band', data_raw_list) # init band
data_service.set(data_abstract, data_raw, thumb, refs, bands)
return self.render(data=data_service.get_abstract().view(),
status=201,
header={'Location': '/v1/data/%s' % data_name})
def post(self, dataName):
"""
ref: web_api.yaml
:param dataName:
:return:
"""
data_name = utils.encode_if_unicode(dataName)
data_service = DataService(data_name)
if data_service.exists():
return self.render(msg='%s is exists' % data_name, status=422)
if len(request.files) < 1:
return self.render(msg='expect file input', status=422)
upload_file = request.files['file']
current_app.logger.info('Info: %s %s %s', request.files['file'], request.files, request.files['file'].filename)
try:
points, time_formatter = self._parse_file(upload_file) # parse data in csv
except Exception as e:
return self.render(msg=str(e), status=422)
if len(points) < 2:
return self.render(msg='at least 2 point', status=422)
timestamps = np.asarray(sorted(points.keys()))
periods = np.diff(timestamps)
period = int(np.median(periods))
start_time = utils.ifloor(timestamps.min(), period)
end_time = utils.ifloor(timestamps.max(), period) + period
data_raw = [] # drop those points not divisible by period
data_raw_list = []
for timestamp in range(start_time, end_time, period):
if timestamp in points:
point = points[timestamp]
data_raw.append(
Raw(timestamp=point[0], value=point[1], label=point[2]))
data_raw_list.append((point[0], point[1], None))
else:
data_raw.append(Raw(timestamp=timestamp))
data_raw_list.append((timestamp, None, None))
plugin = Plugin(data_service)
#for item in data_raw_list:
_, (axis_min, axis_max) = plugin('y_axis', data_raw_list) # cal y_axis for data
data_abstract = DataAbstract( # save abstract for data
start_time=start_time,
end_time=end_time,
y_axis_min=axis_min,
y_axis_max=axis_max,
period=period,
period_ratio=len(periods[periods == period]) * 1. / len(periods),
label_ratio=sum([1 for point in data_raw if point.label]) * 1. / len(data_raw),
time_formatter=time_formatter.__name__
)
data_service.abstract = data_abstract
_, thumb = plugin('sampling', data_raw_list, config.SAMPLE_PIXELS) # init thumb for data
thumb = Thumb(thumb=json.dumps({
'msg': 'OK',
'server': request.host,
'traceId': '',
'data': {
'data': [(point[0] * 1000, point[1]) for point in thumb],
'name': 'thumb',
'type': 'line'
}
}, ensure_ascii=False))
refs = plugin('reference', data_raw_list) # init ref for data
bands = plugin('init_band', data_raw_list) # init band
data_service.set(data_abstract, data_raw, thumb, refs, bands)
return self.render(
data=data_service.get_abstract().view(),
status=201,
header={'Location': '/v1/data/%s' % data_name}
)