def _parse_raster_info(self, prop=RASTER_INFO):
""" Collapses multiple dimensions into a single raster_info complex struct """
raster_info = {}.fromkeys(_iso_definitions[prop], u'')
# Ensure conversion of lists to newlines is in place
raster_info['dimensions'] = get_default_for_complex_sub(
prop=prop,
subprop='dimensions',
value=parse_property(self._xml_tree, None, self._data_map, '_ri_num_dims'),
xpath=self._data_map['_ri_num_dims']
)
xpath_root = self._get_xroot_for(prop)
xpath_map = self._data_structures[prop]
for dimension in parse_complex_list(self._xml_tree, xpath_root, xpath_map, RASTER_DIMS):
dimension_type = dimension['type'].lower()
if dimension_type == 'vertical':
raster_info['vertical_count'] = dimension['size']
elif dimension_type == 'column':
raster_info['column_count'] = dimension['size']
raster_info['x_resolution'] = u' '.join(dimension[k] for k in ['value', 'units']).strip()
elif dimension_type == 'row':
raster_info['row_count'] = dimension['size']
raster_info['y_resolution'] = u' '.join(dimension[k] for k in ['value', 'units']).strip()
return raster_info if any(raster_info[k] for k in raster_info) else {}
def _init_metadata(self):
"""
Dynamically sets attributes from a Dictionary passed in by children.
The Dictionary will contain the name of each attribute as keys, and
either an XPATH mapping to a text value in _xml_tree, or a function
that takes no parameters and returns the intended value.
"""
if self._data_map is None:
self._init_data_map()
validate_properties(self._data_map, self._metadata_props)
# Parse attribute values and assign them: key = parse(val)
for prop in self._data_map:
setattr(self, prop,
parse_property(self._xml_tree, None, self._data_map, prop))
self.has_data = any(getattr(self, prop) for prop in self._data_map)
def _parse_attribute_details_file(self, prop=ATTRIBUTES):
""" Concatenates a list of Attribute Details data structures parsed from a remote file """
# Parse content from remote file URL, which may be stored in one of two places:
# Starting at: contentInfo/MD_FeatureCatalogueDescription/featureCatalogueCitation
# ATTRIBUTE: href
# ELEMENT TEXT: CI_Citation/.../CI_Contact/onlineResource/CI_OnlineResource/linkage
self._attr_details_file_url = parse_property(
self._xml_tree, None, self._data_map, '_attributes_file'
)
if not self._attr_details_file_url:
return None
try:
tree_to_parse = get_remote_element(self._attr_details_file_url)
except Exception:
self._attr_details_file_url = None
return None
xpath_map = self._data_structures[ATTRIBUTES]
xpath_root = self._get_xroot_for(prop)
return parse_complex_list(tree_to_parse, xpath_root, xpath_map, prop)
def _parse_attribute_details_file(self, prop=ATTRIBUTES):
""" Concatenates a list of Attribute Details data structures parsed from a remote file """
# Parse content from remote file URL, which may be stored in one of two places:
# Starting at: contentInfo/MD_FeatureCatalogueDescription/featureCatalogueCitation
# ATTRIBUTE: href
# ELEMENT TEXT: CI_Citation/.../CI_Contact/onlineResource/CI_OnlineResource/linkage
self._attr_details_file_url = parse_property(
self._xml_tree, None, self._data_map, '_attributes_file'
)
if not self._attr_details_file_url:
return None
try:
tree_to_parse = get_remote_element(self._attr_details_file_url)
except:
self._attr_details_file_url = None
return None
xpath_map = self._data_structures[ATTRIBUTES]
xpath_root = self._get_xroot_for(prop)
return parse_complex_list(tree_to_parse, xpath_root, xpath_map, prop)