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#!/usr/bin/env python3
import traceback
import time
import sys
import sickle
from lxml import etree
# monkey patch sickle.response to handle large XML responses
# by enabling the huge_tree option (aka XML_PARSE_HUGE)
sickle.response.XMLParser = etree.XMLParser(remove_blank_text=True,
recover=True,
resolve_entities=False,
huge_tree=True)
headers = {
'User-Agent': 'Annif-Finna-collect'
}
sickle = sickle.Sickle('https://api.finna.fi/OAI/Server', headers=headers)
if len(sys.argv) > 1:
current_token = sys.argv[1]
else:
current_token = None
while True:
params = { 'metadataPrefix': 'oai_vufind_json',
'set': 'non_dedup',
'timeout': 30 }
if current_token is not None:
params['resumptionToken'] = current_token
try:
print("Performing call with params {}".format(params), file=sys.stderr)
records = sickle.ListRecords(**params)
for idx, rec in enumerate(records):
if records.resumption_token:
token = records.resumption_token.token
if token != current_token:
print("Resumption token: {} expires: {}".format(token, records.resumption_token.expiration_date), file=sys.stderr)
current_token = token
else:
print("No resumption token in response", file=sys.stderr)
print(records.oai_response.raw, file=sys.stderr)
current_token = None
if 'metadata' in rec.metadata and len(rec.metadata['metadata']) > 0:
json_data = rec.metadata['metadata'][0]
print(json_data)
if current_token is None:
# all records received, no token - we have probably reached the end
print("No further records, all done.", file=sys.stderr)
break
except Exception as e:
print(traceback.format_exc(), file=sys.stderr)
print("Waiting for 10 seconds before retrying...", file=sys.stderr)
time.sleep(10)
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