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Add limited XML create-template support
OpenDataServices/cove#775 Based on this unmerged commit to CoVE OpenDataServices/cove@e274142
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| import sys | ||
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| from .sort_xml import XMLSchemaWalker, namespaces | ||
| from .sheet import Sheet | ||
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| class XMLSchemaWalkerForTemplate(XMLSchemaWalker): | ||
| def attribute_loop(self, element): | ||
| """ | ||
| Returns a list containing a tuple for each attribute the given element | ||
| can have. | ||
| The format of the tuple is (name, is_required) | ||
| """ | ||
| #if element.find("xsd:complexType[@mixed='true']", namespaces=namespaces) is not None: | ||
| # print_column_info('text', indent) | ||
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| a = element.attrib | ||
| type_attributes = [] | ||
| type_attributeGroups = [] | ||
| if 'type' in a: | ||
| complexType = self.get_schema_element('complexType', a['type']) | ||
| if complexType is not None: | ||
| type_attributes = ( | ||
| complexType.findall('xsd:attribute', namespaces=namespaces) + | ||
| complexType.findall('xsd:simpleContent/xsd:extension/xsd:attribute', namespaces=namespaces) | ||
| ) | ||
| type_attributeGroups = ( | ||
| complexType.findall('xsd:attributeGroup', namespaces=namespaces) + | ||
| complexType.findall('xsd:simpleContent/xsd:extension/xsd:attributeGroup', namespaces=namespaces) | ||
| ) | ||
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| group_attributes = [] | ||
| for attributeGroup in ( | ||
| element.findall('xsd:complexType/xsd:attributeGroup', namespaces=namespaces) + | ||
| element.findall('xsd:complexType/xsd:simpleContent/xsd:extension/xsd:attributeGroup', namespaces=namespaces) + | ||
| type_attributeGroups | ||
| ): | ||
| group_attributes += self.get_schema_element('attributeGroup', attributeGroup.attrib['ref']).findall('xsd:attribute', namespaces=namespaces) | ||
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| for attribute in ( | ||
| element.findall('xsd:complexType/xsd:attribute', namespaces=namespaces) + | ||
| element.findall('xsd:complexType/xsd:simpleContent/xsd:extension/xsd:attribute', namespaces=namespaces) + | ||
| type_attributes + group_attributes | ||
| ): | ||
| doc = attribute.find(".//xsd:documentation", namespaces=namespaces) | ||
| if 'ref' in attribute.attrib: | ||
| referenced_attribute = self.get_schema_element('attribute', attribute.get('ref')) | ||
| if referenced_attribute is not None: | ||
| attribute = referenced_attribute | ||
| if doc is None: | ||
| # Only fetch the documentation of the referenced definition | ||
| # if we don't already have documentation. | ||
| doc = attribute.find(".//xsd:documentation", namespaces=namespaces) | ||
| yield attribute.get('name') or attribute.get('ref'), attribute.get('use') == 'required' | ||
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| def has_simple_content(self, element): | ||
| a = element.attrib | ||
| simple_content = False | ||
| if 'type' in a: | ||
| complexType = self.get_schema_element('complexType', a['type']) | ||
| if complexType is not None: | ||
| simple_content = bool(complexType.findall('xsd:simpleContent', namespaces=namespaces)) | ||
| return simple_content or bool(element.findall('xsd:complexType/xsd:simpleContent', namespaces=namespaces)) | ||
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| def generate_paths(self, parent_name, parent_element=None, parent_path=''): | ||
| if parent_element is None: | ||
| parent_element = self.get_schema_element('element', parent_name) | ||
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| for name, required, in self.attribute_loop(parent_element): | ||
| if name == 'xml:lang': | ||
| # Namespaces not supported yet https://github.com/OpenDataServices/flatten-tool/issues/148 | ||
| # And no way to specify two narrative elements anyway https://github.com/OpenDataServices/cove/issues/777 | ||
| continue | ||
| yield parent_path + '@' + name | ||
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| for name, element, _, minOccurs, maxOccurs in self.element_loop(parent_element): | ||
| if element is None: | ||
| element = self.get_schema_element('element', name) | ||
| path = parent_path + name | ||
| if self.has_simple_content(element): | ||
| yield path | ||
| if maxOccurs == 'unbounded' or int(maxOccurs) > 1: | ||
| path += '/0/' | ||
| else: | ||
| path += '/' | ||
| yield from list(self.generate_paths(name, element, path)) | ||
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| class XMLSchemaParser(object): | ||
| """Parse the fields of a JSON schema into a flattened structure.""" | ||
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| def __init__(self, xml_schemas=[], root_list_path=None): | ||
| self.sub_sheets = {} | ||
| self.main_sheet = Sheet() | ||
| self.sub_sheet_mapping = {} | ||
| self.xml_schemas = xml_schemas | ||
| assert root_list_path is not None | ||
| self.root_list_path = root_list_path | ||
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| def parse(self): | ||
| for path in XMLSchemaWalkerForTemplate(self.xml_schemas).generate_paths(self.root_list_path): | ||
| self.main_sheet.append(path) | ||
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