def _prepare_request_data(self, eopatch, bbox, time_interval):
""" Collects all parameters used for DataRequest, each one is taken either from initialization parameters or
from EOPatch
"""
service_type = ServiceType(self._get_parameter('service_type', eopatch))
if service_type is ServiceType.WMS:
size_x_name, size_y_name = 'width', 'height'
else:
size_x_name, size_y_name = 'resx', 'resy'
return {
'layer': self.layer,
'bbox': bbox if bbox is not None else self._get_parameter('bbox', eopatch),
'time': time_interval if time_interval is not None else[
datetime_to_iso(x) if not isinstance(x, str) else x
for x in self._get_parameter('time_interval', eopatch)],
'time_difference': self._get_parameter('time_difference', eopatch),
'maxcc': self._get_parameter('maxcc', eopatch),
'image_format': self.image_format,
'custom_url_params': self.custom_url_params,
'data_source': self.data_source,
'instance_id': self.instance_id,
size_x_name: self._get_parameter('size_x', eopatch),
size_y_name: self._get_parameter('size_y', eopatch)
}, service_type
def _make_request(self, bbox, meta_info, timestamps):
""" Make OGC request to create input for cloud detector classifier
:param bbox: Bounding box
:param meta_info: Meta-info dictionary of input eopatch
:return: Requested data
"""
service_type = ServiceType(meta_info['service_type'])
# Raise error if resolutions are not specified
if self.cm_size_x is None and self.cm_size_y is None:
raise ValueError("Specify size_x and size_y for data request")
# If WCS request, make sure both resolutions are set
if service_type == ServiceType.WCS:
if self.cm_size_y is None:
self.cm_size_y = self.cm_size_x
elif self.cm_size_x is None:
self.cm_size_x = self.cm_size_y
custom_url_params = {
CustomUrlParam.SHOWLOGO: False,
CustomUrlParam.TRANSPARENT: False,
CustomUrlParam.EVALSCRIPT: self.model_evalscript
}
build_request = {
ServiceType.WMS: self._get_wms_request,
ServiceType.WCS: self._get_wcs_request
}[service_type]
request = build_request(bbox, meta_info['time_interval'],
self.cm_size_x, self.cm_size_y,
meta_info['maxcc'],
meta_info['time_difference'],
custom_url_params)
request_dates = request.get_dates()
download_frames = get_common_timestamps(request_dates, timestamps)
request_return = request.get_data(raise_download_errors=False,
data_filter=download_frames)
bad_data = [
idx for idx, value in enumerate(request_return) if value is None
]
for idx in reversed(sorted(bad_data)):
LOGGER.warning('Data from %s could not be downloaded for %s!',
str(request_dates[idx]), self.data_feature)
del request_return[idx]
del request_dates[idx]
return np.asarray(request_return), request_dates
def _get_rescale_factors(self, reference_shape, meta_info):
""" Compute the resampling factor for height and width of the input array
:param reference_shape: Tuple specifying height and width in pixels of high-resolution array
:type reference_shape: tuple of ints
:param meta_info: Meta-info dictionary of input eopatch. Defines OGC request and parameters used to create the
eopatch
:return: Rescale factor for rows and columns
:rtype: tuple of floats
"""
# Figure out resampling size
height, width = reference_shape
service_type = ServiceType(meta_info['service_type'])
rescale = None
if service_type == ServiceType.WMS:
if (self.cm_size_x is None) and (self.cm_size_y is not None):
rescale = (self.cm_size_y / height, self.cm_size_y / height)
elif (self.cm_size_x is not None) and (self.cm_size_y is None):
rescale = (self.cm_size_x / width, self.cm_size_x / width)
else:
rescale = (self.cm_size_y / height, self.cm_size_x / width)
elif service_type == ServiceType.WCS:
# Case where only one resolution for cloud masks is specified in WCS
if self.cm_size_y is None:
self.cm_size_y = self.cm_size_x
elif self.cm_size_x is None:
self.cm_size_x = self.cm_size_y
hr_res_x, hr_res_y = int(meta_info['size_x'].strip('m')), int(
meta_info['size_y'].strip('m'))
lr_res_x, lr_res_y = int(self.cm_size_x.strip('m')), int(
self.cm_size_y.strip('m'))
rescale = (hr_res_y / lr_res_y, hr_res_x / lr_res_x)
return rescale
