def _update_report_item(self, **update_props):
""" Update the text for each element at the configured path if attribute matches """
tree_to_update = update_props['tree_to_update']
prop = update_props['prop']
values = wrap_value(update_props['values'])
xroot = self._get_xroot_for(prop)
attr_key = 'type'
attr_val = u''
if prop == 'attribute_accuracy':
attr_val = 'DQQuanAttAcc'
elif prop == 'dataset_completeness':
attr_val = 'DQCompOm'
# Clear (make empty) all elements of the appropriate type
for elem in get_elements(tree_to_update, xroot):
if get_element_attributes(elem).get(attr_key) == attr_val:
clear_element(elem)
# Remove all empty elements, including those previously cleared
remove_empty_element(tree_to_update, xroot)
# Insert elements with correct attributes for each new value
attrs = {attr_key: attr_val}
updated = []
for idx, value in enumerate(values):
elem = insert_element(tree_to_update, idx, xroot, **attrs)
updated.append(insert_element(elem, idx, 'measDesc', value))
return updated
def _update_report_item(self, **update_props):
""" Update the text for each element at the configured path if attribute matches """
tree_to_update = update_props['tree_to_update']
prop = update_props['prop']
values = wrap_value(update_props['values'])
xroot = self._get_xroot_for(prop)
attr_key = 'type'
attr_val = u''
if prop == 'attribute_accuracy':
attr_val = 'DQQuanAttAcc'
elif prop == 'dataset_completeness':
attr_val = 'DQCompOm'
# Clear (make empty) all elements of the appropriate type
for elem in get_elements(tree_to_update, xroot):
if get_element_attributes(elem).get(attr_key) == attr_val:
clear_element(elem)
# Remove all empty elements, including those previously cleared
remove_empty_element(tree_to_update, xroot)
# Insert elements with correct attributes for each new value
attrs = {attr_key: attr_val}
updated = []
for idx, value in enumerate(values):
elem = insert_element(tree_to_update, idx, xroot, **attrs)
updated.append(insert_element(elem, idx, 'measDesc', value))
return updated
def has_property(elem_to_parse, xpath):
"""
Parse xpath for any attribute reference "path/@attr" and check for root and presence of attribute.
:return: True if xpath is present in the element along with any attribute referenced, otherwise False
"""
xroot, attr = get_xpath_tuple(xpath)
if not xroot:
return False
elif not attr:
return bool(get_elements_text(elem_to_parse, xroot))
else:
return bool(get_element_attributes(elem_to_parse, xroot).get(attr))
def has_property(elem_to_parse, xpath):
"""
Parse xpath for any attribute reference "path/@attr" and check for root and presence of attribute.
:return: True if xpath is present in the element along with any attribute referenced, otherwise False
"""
xroot, attr = get_xpath_tuple(xpath)
if not xroot and not attr:
return False
elif not attr:
return bool(get_elements_text(elem_to_parse, xroot))
else:
return bool(get_element_attributes(elem_to_parse, xroot).get(attr))
def parse_property(tree_to_parse, xpath_root, xpath_map, prop):
"""
Defines the default parsing behavior for metadata values.
:param tree_to_parse: the XML tree compatible with element_utils to be parsed
:param xpath_root: used to determine the relative XPATH location within the parent element
:param xpath_map: a dict of XPATHs that may contain alternate locations for a property
:param prop: the property to parse: corresponds to a key in xpath_map
"""
xpath = xpath_map[prop]
if isinstance(xpath, ParserProperty):
if xpath.xpath is None:
return xpath.get_prop(prop)
xpath = xpath.xpath
if xpath_root:
xpath = get_xpath_branch(xpath_root, xpath)
parsed = None
if not has_property(tree_to_parse, xpath):
# Element has no text: try next alternate location
alternate = '_' + prop
if alternate in xpath_map:
return parse_property(tree_to_parse, xpath_root, xpath_map,
alternate)
elif '@' not in xpath:
parsed = get_elements_text(tree_to_parse, xpath)
else:
xroot, xattr = get_xpath_tuple(xpath)
parsed = get_element_attributes(tree_to_parse, xroot).get(xattr)
return get_default_for(prop, parsed)
def parse_property(tree_to_parse, xpath_root, xpath_map, prop):
"""
Defines the default parsing behavior for metadata values.
:param tree_to_parse: the XML tree compatible with element_utils to be parsed
:param xpath_root: used to determine the relative XPATH location within the parent element
:param xpath_map: a dict of XPATHs that may contain alternate locations for a property
:param prop: the property to parse: corresponds to a key in xpath_map
"""
xpath = xpath_map[prop]
if isinstance(xpath, ParserProperty):
if xpath.xpath is None:
return xpath.get_prop(prop)
xpath = xpath.xpath
if xpath_root:
xpath = get_xpath_branch(xpath_root, xpath)
parsed = None
if not has_property(tree_to_parse, xpath):
# Element has no text: try next alternate location
alternate = '_' + prop
if alternate in xpath_map:
return parse_property(tree_to_parse, xpath_root, xpath_map, alternate)
elif '@' not in xpath:
parsed = get_elements_text(tree_to_parse, xpath)
else:
xroot, xattr = get_xpath_tuple(xpath)
parsed = get_element_attributes(tree_to_parse, xroot).get(xattr)
return get_default_for(prop, parsed)
