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ORCID2SWORD/backend/app/services/sword_exporter.py
T

156 lines
5.6 KiB
Python

from datetime import datetime
from xml.etree.ElementTree import Element, SubElement, tostring
from io import BytesIO
import zipfile
import json
class SWORDExporter:
ATOM_NS = "http://www.w3.org/2005/Atom"
DC_NS = "http://purl.org/dc/elements/1.1/"
# ---------------------------------------------------------
# 1) XML PRINCIPAL (sword.xml)
# ---------------------------------------------------------
@staticmethod
def export_feed_xml(researcher, publications) -> bytes:
feed = Element("feed", xmlns=SWORDExporter.ATOM_NS)
title = SubElement(feed, "title")
title.text = f"Publications for {researcher.orcid_id}"
author = SubElement(feed, "author")
name = SubElement(author, "name")
name.text = researcher.name or "Unknown"
updated = SubElement(feed, "updated")
updated.text = datetime.utcnow().isoformat() + "Z"
feed_id = SubElement(feed, "id")
feed_id.text = f"urn:uuid:{researcher.id}"
for pub in publications:
entry = SubElement(feed, "entry")
entry_id = SubElement(entry, "id")
entry_id.text = f"urn:uuid:{pub.id}"
entry_updated = SubElement(entry, "updated")
entry_updated.text = datetime.utcnow().isoformat() + "Z"
dc_title = SubElement(entry, f"{{{SWORDExporter.DC_NS}}}title")
dc_title.text = pub.title
if pub.doi:
dc_identifier = SubElement(entry, f"{{{SWORDExporter.DC_NS}}}identifier")
dc_identifier.text = f"doi:{pub.doi}"
if pub.pub_year:
dc_date = SubElement(entry, f"{{{SWORDExporter.DC_NS}}}date")
dc_date.text = str(pub.pub_year)
if pub.type:
dc_type = SubElement(entry, f"{{{SWORDExporter.DC_NS}}}type")
dc_type.text = pub.type
if pub.journal:
dc_source = SubElement(entry, f"{{{SWORDExporter.DC_NS}}}source")
dc_source.text = pub.journal
xml_bytes = tostring(feed, encoding="utf-8", xml_declaration=True)
return xml_bytes
# ---------------------------------------------------------
# 2) manifest.txt
# ---------------------------------------------------------
@staticmethod
def generate_manifest(researcher, publications) -> str:
lines = [
"SWORD Deposit Package",
"----------------------",
f"Researcher ORCID: {researcher.orcid_id}",
f"Researcher Name: {researcher.name or 'Unknown'}",
f"Total Publications: {len(publications)}",
f"Generated At: {datetime.utcnow().isoformat()}Z",
"",
"Publications:",
]
for pub in publications:
lines.append(f"- {pub.title} ({pub.pub_year}) DOI={pub.doi}")
return "\n".join(lines)
# ---------------------------------------------------------
# 3) metadata.json
# ---------------------------------------------------------
@staticmethod
def generate_metadata_json(researcher, publications) -> str:
data = {
"researcher": {
"orcid_id": researcher.orcid_id,
"name": researcher.name,
"id": str(researcher.id),
},
"generated_at": datetime.utcnow().isoformat() + "Z",
"publications": [
{
"id": str(pub.id),
"title": pub.title,
"doi": pub.doi,
"year": pub.pub_year,
"type": pub.type,
"journal": pub.journal,
}
for pub in publications
],
}
return json.dumps(data, indent=4)
# ---------------------------------------------------------
# 4) mets.xml (versión simple)
# ---------------------------------------------------------
@staticmethod
def generate_mets_xml(researcher, publications) -> bytes:
mets = Element("mets", xmlns="http://www.loc.gov/METS/")
header = SubElement(mets, "metsHdr")
agent = SubElement(header, "agent", ROLE="CREATOR", TYPE="OTHER")
name = SubElement(agent, "name")
name.text = "ORCID Exporter System"
dmd_sec = SubElement(mets, "dmdSec", ID="dmd1")
md_wrap = SubElement(dmd_sec, "mdWrap", MDTYPE="DC")
xml_data = SubElement(md_wrap, "xmlData")
for pub in publications:
dc_title = SubElement(xml_data, f"{{{SWORDExporter.DC_NS}}}title")
dc_title.text = pub.title
if pub.doi:
dc_id = SubElement(xml_data, f"{{{SWORDExporter.DC_NS}}}identifier")
dc_id.text = f"doi:{pub.doi}"
return tostring(mets, encoding="utf-8", xml_declaration=True)
# ---------------------------------------------------------
# 5) ZIP FINAL
# ---------------------------------------------------------
@staticmethod
def export_zip(researcher, publications) -> bytes:
xml_bytes = SWORDExporter.export_feed_xml(researcher, publications)
manifest = SWORDExporter.generate_manifest(researcher, publications)
metadata_json = SWORDExporter.generate_metadata_json(researcher, publications)
mets_xml = SWORDExporter.generate_mets_xml(researcher, publications)
mem_file = BytesIO()
with zipfile.ZipFile(mem_file, mode="w", compression=zipfile.ZIP_DEFLATED) as zf:
zf.writestr("sword.xml", xml_bytes)
zf.writestr("manifest.txt", manifest)
zf.writestr("metadata.json", metadata_json)
zf.writestr("mets.xml", mets_xml)
mem_file.seek(0)
return mem_file.read()