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# Trivial use of convert filter: convert XML DOM (etree_doc) to string and back.
[etl]
chains = input_xml_file|convert_xml_to_string|convert_string_to_xml|output_xml_file,
input_complex_xml_file|convert_to_json|output_json_file,
input_gml_sf_file|convert_to_geojson|output_geojson_file
# XML to String and back
[input_xml_file]
class = inputs.fileinput.XmlFileInput
file_path = input/cities.xml
[convert_xml_to_string]
class = filters.formatconverter.FormatConverter
input_format = etree_doc
output_format = string
[convert_string_to_xml]
class = filters.formatconverter.FormatConverter
input_format = string
output_format = etree_doc
[output_xml_file]
class = outputs.fileoutput.FileOutput
file_path = output/cities.xml
# XML to JSON
[input_complex_xml_file]
class = inputs.fileinput.XmlFileInput
file_path = input/building-dutch-bag.xml
[convert_to_json]
class = filters.formatconverter.FormatConverter
input_format = etree_doc
output_format = struct
[output_json_file]
class = outputs.fileoutput.FileOutput
file_path = output/building-dutch.json
# GML to GeoJSON
[input_gml_sf_file]
class = inputs.fileinput.XmlFileInput
file_path = input/cities.gml
# The GML must be a simple features collection
[convert_to_geojson]
class = filters.formatconverter.FormatConverter
input_format = etree_doc
output_format = geojson_collection
converter_args = {
'root_tag': 'FeatureCollection',
'feature_tag': 'featureMember',
'feature_id_attr': 'fid'
}
[output_geojson_file]
class = outputs.fileoutput.FileOutput
file_path = output/cities-gjson.json
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