topic Re: How to replace data in service definition draft file using python? in Python Questions

How to replace data in service definition draft file using python?

RehanChaudhary — Thu, 06 Jan 2022 10:03:11 GMT

i have a service definition draft file which also contains the information about the metadata it's going to create. i want to update the metadata information before staging the draft file. The draft file looks something like this :

i am able to read the XmlDoc tag in this file using the code below and i want to replace the xml file under this tag with another xml file. This code helps me read it.

import xml.dom.minidom as DOM import shutil import xml.etree.ElementTree as ET metadata_path=r"C:\Users\arcgis\UnidataDD2MI_result.xml" meta=doc.getElementsByTagName('XmlDoc') new_metadata=DOM.parse(metadata_path) for metadata in meta: if metadata.firstChild.data: metadata.firstChild.replaceData() print (metadata.firstChild.data) sys.exit(0)

This is the file i want to have under the tag:

<?xml version="1.0" encoding="UTF-8"?> <gmd:MD_Metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:srv="http://www.isotc211.org/2005/srv" xmlns:gmx="http://www.isotc211.org/2005/gmx" xmlns:gsr="http://www.isotc211.org/2005/gsr" xmlns:gss="http://www.isotc211.org/2005/gss" xmlns:gts="http://www.isotc211.org/2005/gts" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:schemaLocation="http://www.isotc211.org/2005/gmd http://schemas.opengis.net/csw/2.0.2/profiles/apiso/1.0.0/apiso.xsd"> <gmd:fileIdentifier> <gco:CharacterString>https://hdl.handle.net/20.500.12085/1f97f2a1-75fc-4110-ae22-f873d7d86565@metadata</gco:CharacterString> </gmd:fileIdentifier> <gmd:language> <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/" codeListValue="eng">eng</gmd:LanguageCode> </gmd:language> </gmd:MD_Metadata>

How can i replace the file under the xml tag. i tried using the replaceData() function but was unable to do it?

Re: How to replace data in service definition draft file using python?

Anonymous User — Fri, 07 Jan 2022 16:34:07 GMT

Haven't tried this, but maybe you could treat this just as a text file and manipulate the tags using simple text reading, extracting/deleting the desired block, appending the replacement block, then appending the remaining xml? Or instead of replace, do a remove and insert?

Re: How to replace data in service definition draft file using python?

RehanChaudhary — Fri, 07 Jan 2022 16:52:06 GMT

@Anonymous User but as soon as i parse the xml file to be replaced, it becomes an object. how can i use it to replce it?

Re: How to replace data in service definition draft file using python?

Anonymous User — Fri, 07 Jan 2022 17:59:17 GMT

This lets me change the tags in the xml, but I'm not sure if it will validate:

metadata_path=r'path to .sddraft' tree = ET.parse(metadata_path) root = tree.getroot() xml_doc = """<gmd:MD_Metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:srv="http://www.isotc211.org/2005/srv" xmlns:gmx="http://www.isotc211.org/2005/gmx" xmlns:gsr="http://www.isotc211.org/2005/gsr" xmlns:gss="http://www.isotc211.org/2005/gss" xmlns:gts="http://www.isotc211.org/2005/gts" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:schemaLocation="http://www.isotc211.org/2005/gmd http://schemas.opengis.net/csw/2.0.2/profiles/apiso/1.0.0/apiso.xsd"> <gmd:fileIdentifier> <gco:CharacterString>https://hdl.handle.net/20.500.12085/1f97f2a1-75fc-4110-ae22-f873d7d86565@metadata</gco:CharacterString> </gmd:fileIdentifier> <gmd:language> <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/" codeListValue="eng">eng</gmd:LanguageCode> </gmd:language> </gmd:MD_Metadata>""" for xmldoc in root.iter('XmlDoc'): xmldoc.text = xml_doc tree.write(r'output.sddraft')