def expand_params(self, resource):
# Use WFS Capabilities doc to get metadata for
# PARAM_DEFS ranges/defaults
try:
wfs = self.get_metadata_cached(resource, version='1.1.0')
feature_types = wfs.contents
feature_type_names = list(feature_types.keys())
self.layer_count = len(feature_type_names)
ft_namespaces = set([name.split(':')[0] if ':' in name else None
for name in feature_type_names])
ft_namespaces = filter(None, list(ft_namespaces))
# In some cases default NS is used: no FT NSs
nsmap = None
if len(ft_namespaces) > 0:
try:
# issue #243 this depends if lxml etree present
# and used by OWSLib ! Otherwise fall-back.
nsmap = wfs._capabilities.nsmap
except Exception as err:
# Fall-back
pass
if not nsmap:
# Just build dummy NS map, to satisfy REQUEST_TEMPLATE
ft_namespaces = ['dummyns']
nsmap = {ft_namespaces[0]: 'http://dummy.ns/'}
self.PARAM_DEFS['type_ns_prefix']['value'] = ft_namespaces[0]
self.PARAM_DEFS['type_ns_uri']['value'] = \
nsmap[ft_namespaces[0]]
# FeatureTypes to select
self.PARAM_DEFS['type_name']['range'] = feature_type_names
self.PARAM_DEFS['type_ns_prefix']['range'] = ft_namespaces
self.PARAM_DEFS['type_ns_uri']['range'] = \
[nsmap[ns] for ns in ft_namespaces]
# Image Format
# for oper in wfs.operations:
# if oper.name == 'GetFeature':
# self.PARAM_DEFS['format']['range'] = \
# oper.formatOptions
# break
# Take random feature_type to determine generic attrs
for feature_type_name in feature_types:
feature_type_entry = feature_types[feature_type_name]
break
# SRS
crs_list = feature_type_entry.crsOptions
srs_range = ['EPSG:%s' % crs.code for crs in crs_list]
self.PARAM_DEFS['srs']['range'] = srs_range
default_srs = srs_range[0]
self.PARAM_DEFS['srs']['default'] = default_srs
# bbox as list: 0-3 is bbox llx, lly, ulx, uly
bbox = feature_type_entry.boundingBoxWGS84
# It looks like the first SRS is the default
# if it is not EPSG:4326 we need to transform bbox
if default_srs != 'EPSG:4326':
bbox = transform_bbox('EPSG:4326', srs_range[0], bbox)
# Convert bbox floats to str
self.PARAM_DEFS['bbox']['default'] = \
[str(f) for f in bbox]
# self.PARAM_DEFS['exceptions']['range'] = wfs.exceptions
except Exception as err:
raise err
def expand_params(self, resource):
# Use WFS Capabilities doc to get metadata for
# PARAM_DEFS ranges/defaults
try:
wfs = self.get_metadata_cached(resource, version='1.1.0')
feature_types = wfs.contents
if not feature_types:
raise Exception('No Feature Types in WFS')
feature_type_names = list(feature_types.keys())
self.layer_count = len(feature_type_names)
ft_namespaces = set([
name.split(':')[0] if ':' in name else None
for name in feature_type_names
])
ft_namespaces = list(filter(None, list(ft_namespaces)))
# In some cases default NS is used: no FT NSs
nsmap = None
if len(ft_namespaces) > 0:
try:
# issue #243 this depends if lxml etree present
# and used by OWSLib ! Otherwise fall-back.
nsmap = wfs._capabilities.nsmap
except Exception:
# Fall-back
pass
if not nsmap:
# Just build dummy NS map, to satisfy REQUEST_TEMPLATE
ft_namespaces = ['dummyns']
nsmap = {ft_namespaces[0]: 'http://dummy.ns/'}
self.PARAM_DEFS['type_ns_prefix']['value'] = ft_namespaces[0]
self.PARAM_DEFS['type_ns_uri']['value'] = \
nsmap[ft_namespaces[0]]
# FeatureTypes to select
self.PARAM_DEFS['type_name']['range'] = feature_type_names
self.PARAM_DEFS['type_ns_prefix']['range'] = ft_namespaces
self.PARAM_DEFS['type_ns_uri']['range'] = \
[nsmap[ns] for ns in ft_namespaces]
# Image Format
# for oper in wfs.operations:
# if oper.name == 'GetFeature':
# self.PARAM_DEFS['format']['range'] = \
# oper.formatOptions
# break
# Take first feature_type to determine generic attrs
feature_type_entry = feature_types[feature_type_names[0]]
# SRS
crs_list = feature_type_entry.crsOptions
srs_range = ['EPSG:%s' % crs.code for crs in crs_list]
self.PARAM_DEFS['srs']['range'] = srs_range
default_srs = srs_range[0]
self.PARAM_DEFS['srs']['default'] = default_srs
# bbox as list: 0-3 is bbox llx, lly, ulx, uly
bbox = feature_type_entry.boundingBoxWGS84
# It looks like the first SRS is the default
# if it is not EPSG:4326 we need to transform bbox
if default_srs != 'EPSG:4326':
bbox = transform_bbox('EPSG:4326', srs_range[0], bbox)
# Convert bbox floats to str
self.PARAM_DEFS['bbox']['default'] = \
[str(f) for f in bbox]
# self.PARAM_DEFS['exceptions']['range'] = wfs.exceptions
except Exception as err:
raise err
def expand_params(self, resource):
# Use WFS Capabilities doc to get metadata for
# PARAM_DEFS ranges/defaults
try:
wfs = WebFeatureService(resource.url, version="1.1.0")
feature_types = wfs.contents
feature_type_names = list(feature_types.keys())
self.layer_count = len(feature_type_names)
ft_namespaces = set([
name.split(':')[0] if ':' in name else None
for name in feature_type_names
])
ft_namespaces = filter(None, list(ft_namespaces))
# In some cases default NS is used: no FT NSs
if len(ft_namespaces) > 0:
nsmap = wfs._capabilities.nsmap
else:
# Just use dummy NS, to satisfy REQUEST_TEMPLATE
ft_namespaces = ['notapplicable']
nsmap = {ft_namespaces[0]: 'http://not.appli.cable/'}
self.PARAM_DEFS['type_ns_prefix']['value'] = ft_namespaces[0]
self.PARAM_DEFS['type_ns_uri']['value'] = \
nsmap[ft_namespaces[0]]
# FeatureTypes to select
self.PARAM_DEFS['type_name']['range'] = feature_type_names
self.PARAM_DEFS['type_ns_prefix']['range'] = ft_namespaces
self.PARAM_DEFS['type_ns_uri']['range'] = \
[nsmap[ns] for ns in ft_namespaces]
# Image Format
# for oper in wfs.operations:
# if oper.name == 'GetFeature':
# self.PARAM_DEFS['format']['range'] = \
# oper.formatOptions
# break
# Take first feature_type to determine generic attrs
feature_type_name, feature_type_entry = feature_types.popitem()
# SRS
crs_list = feature_type_entry.crsOptions
srs_range = ['EPSG:%s' % crs.code for crs in crs_list]
self.PARAM_DEFS['srs']['range'] = srs_range
default_srs = srs_range[0]
self.PARAM_DEFS['srs']['default'] = default_srs
# bbox as list: 0-3 is bbox llx, lly, ulx, uly
bbox = feature_type_entry.boundingBoxWGS84
# It looks like the first SRS is the default
# if it is not EPSG:4326 we need to transform bbox
if default_srs != 'EPSG:4326':
bbox = transform_bbox('EPSG:4326', srs_range[0], bbox)
# Convert bbox floats to str
self.PARAM_DEFS['bbox']['default'] = \
[str(f) for f in bbox]
# self.PARAM_DEFS['exceptions']['range'] = wfs.exceptions
except Exception as err:
raise err