def list_records(target, date_from, date_until, setspec):
#logging.debug("list_records")
if target is not None:
client = Client(target['url'], registry)
# todo : clean this, find simplified cases
if date_from is not None and date_until is not None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from, until=date_until, set=setspec)
elif date_from is not None and date_until is not None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from, until=date_until)
elif date_from is not None and date_until is None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from, set=setspec)
elif date_from is None and date_until is not None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], until=date_until, set=setspec)
elif date_from is not None and date_until is None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from)
elif date_from is None and date_until is not None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], until=date_until)
elif date_from is None and date_until is None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], set=setspec)
elif date_from is None and date_until is None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'])
if records is not None:
for record in records:
yield convert_record(record, target['metadata_prefix'], target['title'])
def list_records(target, date_from, date_until, setspec):
logging.debug("list_records")
if target is not None:
client = Client(target['url'], registry)
# todo : clean this, find simplified cases
if date_from is not None and date_until is not None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from, until=date_until, set=setspec)
elif date_from is not None and date_until is not None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from, until=date_until)
elif date_from is not None and date_until is None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from, set=setspec)
elif date_from is None and date_until is not None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], until=date_until, set=setspec)
elif date_from is not None and date_until is None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from)
elif date_from is None and date_until is not None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], until=date_until)
elif date_from is None and date_until is None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], set=setspec)
elif date_from is None and date_until is None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'])
if records is not None:
for record in records:
yield convert_record(record, target['metadata_prefix'], target['title'])
def list_records(target, date_from, date_until, setspec):
if target is not None:
client = Client(target['url'], registry)
# todo : clean this, find simplified cases
if date_from is not None and date_until is not None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from, until=date_until, set=setspec)
elif date_from is not None and date_until is not None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from, until=date_until)
elif date_from is not None and date_until is None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from, set=setspec)
elif date_from is None and date_until is not None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], until=date_until, set=setspec)
elif date_from is not None and date_until is None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], from_=date_from)
elif date_from is None and date_until is not None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], until=date_until)
elif date_from is None and date_until is None and setspec is not None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'], set=setspec)
elif date_from is None and date_until is None and setspec is None:
records = client.listRecords(metadataPrefix=target['metadata_prefix'])
results = []
if records is not None:
results = []
for record in records:
results.append(convert_record(record, target['metadata_prefix'], target['title']))
return results
def scrape(self):
raise Exception("not finished")
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
url = self.setting('pmh-endpoint')
client = Client(url, registry)
print " OAI Repository", url
print " Available sets:"
for s in client.listSets():
print " ", s
oai_set = self.setting('set')
oai_from = self.setting('from')
oai_until = self.setting('until')
kwargs = {}
if oai_set:
kwargs['set'] = oai_set
if oai_from is not None:
date_args = [int(arg) for arg in oai_from.split("-")]
kwargs['from_'] = datetime.datetime(*date_args)
if oai_until is not None:
date_args = [int(arg) for arg in oai_until.split("-")]
kwargs['until'] = datetime.datetime(*date_args)
records = [r for r in client.listRecords(metadataPrefix='oai_dc', **kwargs)]
data_filepath = os.path.join(self.work_dir(), self.setting('data-file'))
with open(data_filepath, 'wb') as f:
print " picking", len(records), "records"
pickle.dump(records, f)
def insertAll(time, time2):
registry = MetadataRegistry()
registry.registerReader('arXivRaw', arXivRaw_reader)
client = Client(URL, registry)
client.updateGranularity()
list = client.listRecords(metadataPrefix='arXivRaw', from_=time, until=time2)
errors = 0
for a in list:
#a = list.next()
try:
title = '\n'.join(a[1]['title'])
sr2 = str(' '.join(a[1]['categories']).replace('-','_')).split(' ')
abstract = '\n'.join(a[1]['abstract'])
url = 'http://arxiv.org/abs/' + a[1]['id'][0]
date = datetime.strptime(a[1]['created'][0], '%a, %d %b %Y %H:%M:%S %Z')
authors = a[1]['authors'][0]# '; '.join(a[1]['keynames'])
abstract = abstract + '\nBy: ' + authors + '\nIn: ' + ', '.join(sr2)
print title
print sr2
print abstract
print url
print date
print authors
insert(title + ' (' + authors + ')', str("fullarxiv"), url, abstract, date=date, cross_srs=sr2)
except:
print 'ERROR'
print a
errors = errors+1
print 'Completed with %s errors' % errors
def arxiv_oai_scraper(subject, start, end, sleep_time=0):
base_url = "http://export.arxiv.org/oai2"
output = list()
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(base_url, registry)
client.updateGranularity()
records = client.listRecords(metadataPrefix='oai_dc', set="{}".format(subject), from_=start, until=end)
for _, md, _ in records:
# print md.getField("title")
# checks for the case in 2010 when there is no title for something
if md is not None:
txt_dict = {"title": md["title"],
"abstract": md["description"],
"date": md["date"],
"subject": md["subject"],
"url": md["identifier"],
"authors": md['creator']}
output.append(txt_dict)
time.sleep(sleep_time)
return output
def _listRecords(self, baseUrl, metadataPrefix="oai_dc", **kwargs):
# Generator to yield records from baseUrl in the given metadataPrefix
# Add metatdataPrefix to args
kwargs['metadataPrefix'] = metadataPrefix
client = Client(baseUrl, metadata_registry)
# Check server timestamp granularity support
client.updateGranularity()
for record in client.listRecords(**kwargs):
yield record
def pull_data(source):
list_of_records = []
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
# Get list of public experiments at sources
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(source
+ "/apps/oaipmh/?verb=ListRecords&metadataPrefix=oai_dc", registry)
try:
exps_date = []
exps_metadata = []
for (header, meta, extra) in client.listRecords(metadataPrefix='oai_dc'):
exps_date.append(str(header._datestamp))
exps_metadata.append(meta)
logger.debug('Date=%s' % header._datestamp)
except AttributeError as e:
msg = "Error reading experiment %s" % e
logger.error(msg)
raise OAIPMHError(msg)
except error.NoRecordsMatchError as e:
msg = "no public records found on source %s" % e
logger.warn(msg)
return
exp_counter = 0
for exp_metadata in exps_metadata:
user_id = exp_metadata.getField('creator')[0]
user_profile = json.loads(_get_user(source, user_id))
data_tobe_indexed = dict(user_profile)
data_tobe_indexed['user_id'] = user_id
exp_id = exp_metadata.getField('identifier')[0]
description = exp_metadata.getField('description')[0]
title = exp_metadata.getField('title')[0]
if settings.EXPERIMENT_PATH[0] == '/':
settings.EXPERIMENT_PATH = settings.EXPERIMENT_PATH[1:]
experiment_url = os.path.join(source,
settings.EXPERIMENT_PATH % exp_id)
data_tobe_indexed['experiment_id'] = exp_id
data_tobe_indexed['experiment_title'] = title
data_tobe_indexed['experiment_description'] = description
data_tobe_indexed['experiment_url'] = experiment_url
data_tobe_indexed['id'] = experiment_url
data_tobe_indexed['experiment_date'] = exps_date[exp_counter]
exp_counter += 1
for k, v in data_tobe_indexed.items():
logger.debug('%s = %s' % (k, v))
logger.debug('')
list_of_records.append(json.dumps(data_tobe_indexed))
return list_of_records
def harvest_oai_collection_records(self, collection):
records = []
try:
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(collection.community.repository.base_url, registry)
records = client.listRecords(
metadataPrefix='oai_dc', set=collection.identifier)
except:
return
return records
def index_documents(main_url, database_name, url, reader, prefix, format):
registry = MetadataRegistry()
registry.registerReader(prefix, reader)
client = Client(url, registry)
return_stuff = []
for record in client.listRecords(metadataPrefix=prefix):
r = record[1]
value = format(r, record[0].identifier())
if value != None:
return_stuff.append(value)
if len(return_stuff) >= 10000:
sync_files(main_url, database_name, return_stuff)
return_stuff = []
sync_files(main_url, database_name, return_stuff)
def read_base_records(self):
registry = MetadataRegistry()
registry.registerReader('base_dc', base_dc_reader)
client = Client('http://doai.io/oai', registry)
for header, record, _ in client.listRecords(metadataPrefix='base_dc'):
# only process records for which base was unsure
if '2' not in record['oa']:
continue
# extract splash_url
for link in record['identifier']:
metadata = {'base_oa':''.join(record['oa']),
'splash_url':link,
'from_identifier':header.identifier()}
yield self.filter_url(link,metadata, looking_for='any')
def index_documents(main_url, database_name, url, reader, prefix, format):
registry = MetadataRegistry()
registry.registerReader(prefix, reader)
client = Client(url, registry)
return_stuff = []
for record in client.listRecords(metadataPrefix=prefix):
r = record[1]
value = format(r,record[0].identifier())
if value != None:
return_stuff.append(value)
if len(return_stuff) >= 10000:
sync_files(main_url, database_name, return_stuff)
return_stuff = []
sync_files(main_url, database_name, return_stuff)
def scrape(start=START, end=END, set=SET_THESIS, type='Thesis'):
"""
Create an OAI-PMH client, gather metadata and output it.
"""
total = num = 0
msg = "Fetching records between " + str(start) + " and " + str(end)
sys.stderr.write(msg + "\n")
#
# Set up metadata readers
#
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
registry.registerReader('qdc', qdc_reader)
# registry.registerReader('rdf', rdf_reader) # no reader yet
# registry.registerReader('ore', ore_reader) # no reader yet
# registry.registerReader('mets', mets_reader) # no reader yet
client = Client(URL, registry)
records = client.listRecords(metadataPrefix='qdc',
from_=start,
until=end,
set=set)
for (h, m, a) in records:
print h, m, a
if not m:
sys.stderr.write("o")
continue
total = total + 1
handle = m.getField('identifier')
if not handle:
sys.stderr.write("Record without a handle.\n")
continue
r = dict({'handle': handle[0]})
for key in qdc_reader._fields.keys():
r[key] = m.getField(key)
RECORDS.append(r)
sys.stderr.write('.')
sys.stderr.flush()
num = num + 1
msg = "\nCollected " + str(num) + " records, out of " + str(total)
sys.stderr.write('\n' + msg + '\n')
if options.store:
pickle.dump(RECORDS, open(options.store, "wb"))
def update(self, from_date=None):
self._log.info('Harvesting oai server: %s' % self._url)
registry = MetadataRegistry()
registry.registerReader(self._prefix, lambda el: el)
client = Client(self._url, registry)
try:
for header, element, about in client.listRecords(
metadataPrefix=self._prefix, from_=from_date):
added = self._process_record(header, element)
if added:
yield self._get_id(header)
except NoRecordsMatchError:
pass
super(OAIBasedContentProvider, self).update()
def _listRecords(self, baseUrl, metadataPrefix="oai_dc", **kwargs):
# Generator to yield records from baseUrl in the given metadataPrefix
# Add metatdataPrefix to args
kwargs['metadataPrefix'] = metadataPrefix
client = Client(baseUrl, self._mdRegistry)
# Check that baseUrl actually represents an OAI-PMH target
try:
client.identify()
except IndexError:
raise NotOAIPMHBaseURLException(
"{0} does not appear to be an OAI-PMH compatible base URL"
"".format(baseUrl))
# Check server timestamp granularity support
client.updateGranularity()
for record in client.listRecords(**kwargs):
yield record
def scrape(start=START, end=END, set=SET_THESIS, type='Thesis'):
"""
Create an OAI-PMH client, gather metadata and output it.
"""
total = num = 0
msg = "Fetching records between " + str(start) + " and " + str(end)
sys.stderr.write(msg + "\n")
#
# Set up metadata readers
#
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
registry.registerReader('qdc', qdc_reader)
# registry.registerReader('rdf', rdf_reader) # no reader yet
# registry.registerReader('ore', ore_reader) # no reader yet
# registry.registerReader('mets', mets_reader) # no reader yet
client = Client(URL, registry)
records = client.listRecords(metadataPrefix='qdc',
from_=start, until=end, set=set)
for (h, m, a) in records:
print h, m, a
if not m:
sys.stderr.write("o")
continue
total = total + 1
handle = m.getField('identifier')
if not handle:
sys.stderr.write("Record without a handle.\n")
continue
r = dict({ 'handle' : handle[0] })
for key in qdc_reader._fields.keys():
r[key] = m.getField(key)
RECORDS.append(r)
sys.stderr.write('.')
sys.stderr.flush()
num = num + 1
msg = "\nCollected " + str(num) + " records, out of " + str(total)
sys.stderr.write('\n' + msg + '\n');
if options.store:
pickle.dump(RECORDS, open(options.store, "wb"))
def update(self, from_date=None):
self._log.info('Harvesting oai server: %s' % self._url)
registry = MetadataRegistry()
registry.registerReader(self._prefix, lambda el: el)
client = Client(self._url, registry)
try:
for header, element, about in client.listRecords(
metadataPrefix = self._prefix,
from_ = from_date):
added = self._process_record(header, element)
if added:
yield self._get_id(header)
except NoRecordsMatchError:
pass
super(OAIBasedContentProvider, self).update()
def _listRecords(self, baseUrl, metadataPrefix="oai_dc", **kwargs):
# Generator to yield records from baseUrl in the given metadataPrefix
# Add metatdataPrefix to args
kwargs['metadataPrefix'] = metadataPrefix
client = Client(baseUrl, self._mdRegistry)
# Check that baseUrl actually represents an OAI-PMH target
try:
client.identify()
except IndexError:
raise NotOAIPMHBaseURLException(
"{0} does not appear to be an OAI-PMH compatible base URL"
"".format(baseUrl)
)
# Check server timestamp granularity support
client.updateGranularity()
for record in client.listRecords(**kwargs):
yield record
def processItems():
oai_oi_reader = MetadataReader(
fields={
'title': ('textList', 'oai_oi:oi/oi:title/text()'),
'alternative': ('textList', 'oai_oi:oi/oi:alternative/text()'),
'creator': ('textList', 'oai_oi:oi/oi:creator/text()'),
'subject': ('textList', 'oai_oi:oi/oi:subject/text()'),
'description': ('textList', 'oai_oi:oi/oi:description/text()'),
'abstract': ('textList', 'oai_oi:oi/oi:abstract/text()'),
'publisher': ('textList', 'oai_oi:oi/oi:publisher/text()'),
'contributor': ('textList', 'oai_oi:oi/oi:contributor/text()'),
'date': ('textList', 'oai_oi:oi/oi:date/text()'),
'type': ('textList', 'oai_oi:oi/oi:type/text()'),
'extent': ('textList', 'oai_oi:oi/oi:extend/text()'),
'medium': ('textList', 'oai_oi:oi/oi:medium/text()'),
'identifier': ('textList', 'oai_oi:oi/oi:identifier/text()'),
'source': ('textList', 'oai_oi:oi/oi:source/text()'),
'language': ('textList', 'oai_oi:oi/oi:language/text()'),
'references': ('textList', 'oai_oi:oi/oi:references/text()'),
'spatial': ('textList', 'oai_oi:oi/oi:spatial/text()'),
'attributionName':
('textList', 'oai_oi:oi/oi:attributionName/text()'),
'attributionURL':
('textList', 'oai_oi:oi/oi:attributionURL/text()'),
'license': ('textList', 'oai_oi:oi/oi:license/text()'),
#Zitten er niet in
#'rights': ('textList', 'oai_oi:oi/oi:rights/text()'),
#'relation': ('textList', 'oai_oi:oi/oi:relation/text()'),
#'coverage': ('textList', 'oai_oi:oi/oi:coverage/text()'),
#'format': ('textList', 'oai_oi:oi/oi:format/text()'),
},
namespaces={
'oi': 'http://www.openbeelden.nl/oai/',
'oai_oi': 'http://www.openarchives.org/OAI/2.0/oai_dc/',
'dc': 'http://purl.org/dc/elements/1.1/',
'dcterms': 'http://purl.org/dc/terms',
})
url = u'http://www.openbeelden.nl/feeds/oai/'
registry = MetadataRegistry()
registry.registerReader('oai_oi', oai_oi_reader)
client = Client(url, registry)
for record in client.listRecords(metadataPrefix='oai_oi'):
processItem(record)
def processItems():
oai_oi_reader = MetadataReader(
fields={
'title': ('textList', 'oai_oi:oi/oi:title/text()'),
'alternative': ('textList', 'oai_oi:oi/oi:alternative/text()'),
'creator': ('textList', 'oai_oi:oi/oi:creator/text()'),
'subject': ('textList', 'oai_oi:oi/oi:subject/text()'),
'description': ('textList', 'oai_oi:oi/oi:description/text()'),
'abstract': ('textList', 'oai_oi:oi/oi:abstract/text()'),
'publisher': ('textList', 'oai_oi:oi/oi:publisher/text()'),
'contributor': ('textList', 'oai_oi:oi/oi:contributor/text()'),
'date': ('textList', 'oai_oi:oi/oi:date/text()'),
'type': ('textList', 'oai_oi:oi/oi:type/text()'),
'extent': ('textList', 'oai_oi:oi/oi:extend/text()'),
'medium': ('textList', 'oai_oi:oi/oi:medium/text()'),
'identifier': ('textList', 'oai_oi:oi/oi:identifier/text()'),
'source': ('textList', 'oai_oi:oi/oi:source/text()'),
'language': ('textList', 'oai_oi:oi/oi:language/text()'),
'references': ('textList', 'oai_oi:oi/oi:references/text()'),
'spatial': ('textList', 'oai_oi:oi/oi:spatial/text()'),
'attributionName': ('textList', 'oai_oi:oi/oi:attributionName/text()'),
'attributionURL': ('textList', 'oai_oi:oi/oi:attributionURL/text()'),
'license': ('textList', 'oai_oi:oi/oi:license/text()'),
#Zitten er niet in
#'rights': ('textList', 'oai_oi:oi/oi:rights/text()'),
#'relation': ('textList', 'oai_oi:oi/oi:relation/text()'),
#'coverage': ('textList', 'oai_oi:oi/oi:coverage/text()'),
#'format': ('textList', 'oai_oi:oi/oi:format/text()'),
},
namespaces={
'oi' : 'http://www.openbeelden.nl/oai/',
'oai_oi' : 'http://www.openarchives.org/OAI/2.0/oai_dc/',
'dc' : 'http://purl.org/dc/elements/1.1/',
'dcterms' : 'http://purl.org/dc/terms',
}
)
url = u'http://www.openbeelden.nl/feeds/oai/'
registry = MetadataRegistry()
registry.registerReader('oai_oi', oai_oi_reader)
client = Client(url, registry)
for record in client.listRecords(metadataPrefix='oai_oi'):
processItem(record)
def iter_items(self, partition):
""" Partition is an OAI-PMH endpoint """
# source = "oai:%s" % partition
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(partition, registry)
for record in client.listRecords(metadataPrefix='oai_dc'):
header, metadata, _ = record
if header.isDeleted():
continue
# _id = header.identifier()
# date = header.datestamp()
meta = metadata.getMap()
# TODO: there are much validation and heuristics to be done here!
# format0 = (meta.get("format") or [None])[0]
# if not format0:
# continue
# if format0 not in ("application/pdf", ):
# continue
url0 = (meta.get("identifier") or [None])[0]
if not url0:
continue
title0 = (meta.get("title") or [""])[0].encode("utf-8")
desc0 = (meta.get("description") or [""])[0].encode("utf-8")
# TODO: validate that the url0 is not on another domain?!
yield url0, {}, "html", 2, """
<html><head><title>%s</title></head><body>%s</body></html>
""" % (title0, desc0)
def _listRecords(self, baseUrl, metadataPrefix="oai_dc", **kwargs):
# Generator to yield records from baseUrl in the given metadataPrefix
# Add metatdataPrefix to args
kwargs['metadataPrefix'] = metadataPrefix
client = Client(baseUrl, self._mdRegistry)
# Check that baseUrl actually represents an OAI-PMH target
try:
client.identify()
except IndexError:
raise NotOAIPMHBaseURLException(
"{0} does not appear to be an OAI-PMH compatible base URL"
"".format(baseUrl))
# Check server timestamp granularity support
client.updateGranularity()
for record in client.listRecords(**kwargs):
# Unit test hotfix
header, metadata, about = record
# Fix pyoai returning a "b'...'" string for py3k
if isinstance(metadata, str) and metadata.startswith("b'"):
metadata = ast.literal_eval(metadata).decode("utf-8")
yield (header, metadata, about)
def _listRecords(self, baseUrl, metadataPrefix="oai_dc", **kwargs):
# Generator to yield records from baseUrl in the given metadataPrefix
# Add metatdataPrefix to args
kwargs['metadataPrefix'] = metadataPrefix
client = Client(baseUrl, self._mdRegistry)
# Check that baseUrl actually represents an OAI-PMH target
try:
client.identify()
except IndexError:
raise NotOAIPMHBaseURLException(
"{0} does not appear to be an OAI-PMH compatible base URL"
"".format(baseUrl)
)
# Check server timestamp granularity support
client.updateGranularity()
for record in client.listRecords(**kwargs):
# Unit test hotfix
header, metadata, about = record
# Fix pyoai returning a "b'...'" string for py3k
if isinstance(metadata, str) and metadata.startswith("b'"):
metadata = ast.literal_eval(metadata).decode("utf-8")
yield (header, metadata, about)
def acquire_and_publish_documents(oai_url, publish_url, reader, prefix, pwd):
registry = MetadataRegistry()
registry.registerReader(prefix, reader)
client = Client(oai_url, registry)
documents = []
count = 0
for record in client.listRecords(metadataPrefix=prefix):
header = record[0]
metadata = record[1]
rawMetadata = urllib2.urlopen("{0}?verb=GetRecord&metadataPrefix={1}&identifier={2}".format(oai_url,prefix,header.identifier())).read()
# re-format Jorum id
identifier = header.identifier()
identifier = identifier.replace("oai:dspace.jorum.ac.uk:","")
uri = "http://dspace.jorum.ac.uk/xmlui/handle/" + identifier
print(uri)
# create keys from dc.subject terms
fo = StringIO.StringIO(rawMetadata)
tree = parse(fo) # can only parse files or file objects
keys = []
for elem in tree.getiterator():
# print("tag " + str(elem.tag))
# print("text " + str(elem.text))
if elem.tag == "{http://purl.org/dc/elements/1.1/}subject":
keys.append(elem.text)
fo.close()
print(keys)
print("\n")
value = convert_to_envelope(metadata, rawMetadata, uri, keys)
# print (value)
# print(dir(header))
if value != None:
documents.append(value)
count += 1
if (count % 10 == 0) or (count == 3):
publish_documents(publish_url, documents, pwd)
documents = []
publish_documents(publish_url, documents, pwd)
#try this and see if it works; if it does resumption tokens right, this should work fine.
chunk = timedelta(days=1)
oneday = timedelta(days=1)
#TODO: clearly they don't do this whole "ordered" thing. Grab records by month or year or something instead of all at once.
#TODO: luckily, once we've done a full slurp, we only need to remember when the last full slurp was and start since then. But if interrupted, we need to start back from where the last *full* slurp was, due to the ordering problem.
#TODO: structure this better, with the try effectively moved much further above. Really, move a lot more into functions
try:
current = start #TODO: make a nice little generator so I can use a for loop
while current <= datetime.now():
print >>sys.stderr, "fetching records @", now(), "starting with", current.strftime('%Y-%m-%d')
try:
records = client.listRecords(metadataPrefix='oai_dc', from_=current, until=(current + chunk))
except NoRecordsMatchError:
print >>sys.stderr, "no records for this chunk, continuing to next"
current += chunk
store.write_last(current)
continue
print >>sys.stderr, "record fetch finished @", now()
for index, (header, metadata, _) in enumerate(records, start=1):
store.write_record(header, metadata)
if index == 1 or index % 1000 == 0:
print >>sys.stderr, " wrote record", index, "of", header.datestamp().strftime('%Y-%m-%d'), "with id", header.identifier()
current += chunk
store.write_last(current)
finally:
print >>sys.stderr, "closing store"
store.close()
class NSDLDCImport(object):
'''
Class exports the required fields from the UCAR OAI-PMH data repository using NSDL_DC.
'''
def __init__(self, url, prefix=nsdl.LR_NSDL_PREFIX, reader=None, fields=None, namespaces=None, fieldMap=None):
'''
Constructor
'''
if fields == None:
self._fields = nsdl.LR_NSDL_DC_FIELDS
else:
self._fields = fields
if fieldMap == None:
self._fieldMap = nsdl.NSDL_TO_LR_MAP
else:
self._fieldMap = fieldMap
if namespaces == None:
self._namespaces = nsdl.LR_NSDL_DC_NAMESPACES
else:
self._namespaces = namespaces
if reader == None:
reader = MetadataReader(fields = self._fields, namespaces = self._namespaces)
self._url = url
self._registry = MetadataRegistry()
self._prefix = prefix
self._registry.registerReader(prefix, reader)
self._client = Client(url, self._registry)
def _format(self, doc):
value = {}
# merge all the fields
for (fieldname, fieldconfig) in self._fieldMap.items():
if fieldconfig["type"] == "const" and "const" in fieldconfig:
value[fieldname] = fieldconfig["const"]
elif fieldconfig["type"] == "[string]" and len(fieldconfig["fields"]) > 0:
value[fieldname] = []
for field in fieldconfig["fields"]:
value[fieldname].extend(doc.getField(field))
elif fieldconfig["type"] == "string" and len(fieldconfig["fields"]) > 0:
value[fieldname] = ""
for field in fieldconfig["fields"]:
value[fieldname] += ", ".join(doc.getField(field))
elif fieldconfig["type"] == "boolean" and len(fieldconfig["fields"]) > 0:
value[fieldname] = True
for field in fieldconfig["fields"]:
value[fieldname] &= doc.getField(field)
return value
def fetch_documents(self, range=10000):
return_stuff = []
for record in self._client.listRecords(metadataPrefix=self._prefix):
r = record[1]
value = self._format(r)
if value != None:
return_stuff.append(value)
if len(return_stuff) >= range:
yield return_stuff
return_stuff = []
if os.path.exists(LANG_CACHE_FILE):
lcf = codecs.open(LANG_CACHE_FILE, 'r', 'utf-8')
for line in lcf:
lang, text = line.rstrip("\r\n").split("\t")
if lang == '': lang = None
lang_cache[text] = lang
lcf.close()
label_to_uri = {}
# pass 1: convert MARC data to basic RDF
oai = Client('https://fennica.linneanet.fi/cgi-bin/oai-pmh-fennica-asteri-aut.cgi', registry)
#recs = oai.listRecords(metadataPrefix='marc21', set='corporateNames', from_=datetime(2019,05,15))
recs = oai.listRecords(metadataPrefix='marc21', set='corporateNames')
for oaipmhrec in recs:
convert_record(oaipmhrec)
recs = oai.listRecords(metadataPrefix='marc21', set='meetingNames')
for oaipmhrec in recs:
convert_record(oaipmhrec)
# pass 2: convert literal values to resources
for prop in (relatedCorporateBody, predecessor, successor, hierarchicalSuperior):
for s,o in g.subject_objects(prop):
if isinstance(o, Literal):
g.remove((s,prop,o)) # remove original
res = label_to_uri.get(u"%s" % o, None)
if res is None:
SETSPEC = sys.argv[3]
else:
SETSPEC = None
registry = MetadataRegistry()
registry.registerReader('mods', mods_reader)
#registry.registerReader('didl', didl_reader)
#registry.registerReader('oac_dc', oai_dc_reader)
client = Client(URL, registry)
record_count = 0
deleted_count = 0
if SETSPEC:
records = client.listRecords(metadataPrefix=METADATA_PREFIX, set=SETSPEC)
else:
records = client.listRecords(metadataPrefix=METADATA_PREFIX)
for num, record in enumerate(records):
record_count += 1
delinfo = ''
if record[0].isDeleted():
deleted_count += 1
delinfo = '(deleted)'
print '%0.6d %s %s' % (num, record[0].identifier(), delinfo)
if record[1] is not None:
# metadata = client.getMetadata(metadataPrefix='mods', identifier=record[0].identifier())
# print type(metadata), metadata.tag
print "MAP: ", record[1].getMap()
# print ' %s' % ';'.join(record[0].setSpec())
class Repository(object):
""" Repository handles interaction with the various interfaces provided by
the dspace repository. """
def __init__(self, url=None, **kwargs):
self.base_url = kwargs.pop('base_url', None)
self.oai_path = kwargs.pop('oai_path', None)
self.oai_enabled = bool(kwargs.pop('oai_enabled', True))
self.sword_enabled = bool(kwargs.pop('sword_enabled', False))
if url is not None:
warn(
'The url paramater will not be supported in version 3, '
'use base_url and oai_path instead', DeprecationWarning)
if (self.base_url and url.startswith(self.base_url)
and self.oai_path is None):
self.oai_path = url.replace(self.base_url, '', 1).lstrip('/')
elif not self.base_url:
if self.oai_path is None:
self.oai_path = 'dspace-oai/request'
if url.endswith(self.oai_path):
self.base_url = url[:-(len(self.oai_path) + 1)]
if self.base_url is None:
raise ValueError('base_url argument must be specified')
if not 'metadata_registry' in kwargs:
kwargs['metadata_registry'] = MetadataRegistry()
kwargs['metadata_registry'].registerReader('mets',
dspace_mets_reader)
if self.sword_enabled:
skwargs = {'base_url': self.base_url}
for key in kwargs.keys():
if key.startswith('sword_'):
skwargs[key[6:]] = kwargs.pop(key)
self.sword = SwordService(**skwargs)
if self.oai_enabled:
self.oai = Client('/'.join((
self.base_url,
self.oai_path,
)), **kwargs)
self.identifier_base = self._extractIdentifierBase(self.base_url)
def _extractIdentifierBase(self, url):
""" From a given URL, extract the OAI identifier base (hostname) """
return urlparse(url).hostname
def _extractSet(self, handle):
""" Determine the OAI set from a collection handle """
if not isinstance(handle, basestring):
raise ValueError('Collection handles must be strings')
return 'hdl_' + handle.replace('/', '_').replace(':', '_')
def getName(self):
""" Get the configured name of the repository """
assert self.oai_enabled, 'Requires OAI-PMH to be enabled'
return self.oai.identify().repositoryName()
def getCollections(self):
""" Get a list of the collections in the repository """
assert self.oai_enabled, 'Requires OAI-PMH to be enabled'
return map(lambda c: c[0:2], self.oai.listSets())
def getItemHandles(self, collection=None, **kw):
""" Get item handles from the OAI-PMH interface """
assert self.oai_enabled, 'Requires OAI-PMH to be enabled'
for item in self.getItemIdentifiers(collection=collection, **kw):
yield item.identifier().split(':', 2)[2]
def getItemIdentifiers(self, collection=None, **kw):
""" Get item identifiers from the OAI-PMH interface """
assert self.oai_enabled, 'Requires OAI-PMH to be enabled'
kw.setdefault('metadataPrefix', 'mets')
if collection:
kw['set'] = self._extractSet(collection)
return self.oai.listIdentifiers(**kw)
def getItems(self, collection=None, **kw):
""" Get full items from the OAI-PMH interface """
assert self.oai_enabled, 'Requires OAI-PMH to be enabled'
kw.setdefault('metadataPrefix', 'mets')
if collection:
kw['set'] = self._extractSet(collection)
return self.oai.listRecords(**kw)
def getItem(self, handle=None, identifier=None, **kwargs):
""" Get a single item from the OAI-PMH interface either by handle or
identifier """
assert self.oai_enabled, 'Requires OAI-PMH to be enabled'
kwargs.setdefault('metadataPrefix', 'mets')
if handle is None and identifier is None:
raise ValueError('Either handle or identifier must be provided')
if handle is not None:
if identifier is not None:
raise ValueError('Either a handle or identifier must be '
'provided, not both')
identifier = 'oai:%s:%s' % (
self.identifier_base,
handle,
)
return self.oai.getRecord(identifier=identifier, **kwargs)
def getOAIItemIdentifier(self, handle):
return 'oai:%s:%s' % (self._extractIdentifierBase(
self.base_url), handle)
def getSwordCollections(self):
pass
def getSwordCollection(self, args):
pass
#!/usr/bin/env python
# uses http://www.infrae.com/download/OAI/pyoai
from oaipmh.client import Client
from oaipmh.metadata import MetadataRegistry, oai_dc_reader
URL = 'http://researchcommons.waikato.ac.nz/dspace-oai/request'
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(URL, registry)
for record in client.listRecords(metadataPrefix='oai_dc'):
print record[0].identifier()
class ZoraAPI:
METADATA_PREFIX = 'oai_dc'
# In the constructor, we register to the ZORA API and initialize the necessary class variables
def __init__(self, url):
registry = MetadataRegistry()
registry.registerReader(ZoraAPI.METADATA_PREFIX, oai_dc_reader)
self.client = Client(url, registry)
self.institutes = {}
self.resource_types = []
self.load_institutes_and_types()
# Returns the hierarchical dictionary of institutes
def get_institutes(self):
return self.institutes
# Returns the list of resource types
def get_resource_types(self):
return self.resource_types
# Loads all institutes and resource types. The institutes also get parsed into a hierarchical dictionary.
def load_institutes_and_types(self):
institutes_list = []
resource_type_list = []
for item in self.client.listSets():
split = item[1].split(' = ')
if len(split) != 2:
continue
set_type, set_value = split
if set_type == 'Subjects':
institutes_list.append(set_value)
elif set_type == 'Type':
resource_type_list.append(set_value)
institutes_dict = self.parse_institutes(institutes_list)
self.institutes = institutes_dict
self.resource_types = resource_type_list
# Parses a list of institutes into a hierarchical dictionary
@staticmethod
def parse_institutes(institute_list_raw):
institutes_dict = {}
for institute_raw in institute_list_raw:
institutes = institute_raw.split(': ')
parent = institutes_dict
for institute in institutes:
if parent.get(institute) is None:
parent[institute] = {}
parent = parent[institute]
return institutes_dict
# Get all metadata dictionaries from ZORA
def get_metadata_dicts(self, from_):
record_list = self.get_records(from_)
metadata_dict_list = self.parse_records(record_list)
return metadata_dict_list
# Gets one specific paper from the ZORA repository and returns the record of it
def get_record(self, uid):
record = self.client.getRecord(identifier=uid,
metadataPrefix=ZoraAPI.METADATA_PREFIX)
return record
# Gets the papers from the ZORA repository and returns their records in form of a list
def get_records(self, from_):
args = {'metadataPrefix': ZoraAPI.METADATA_PREFIX}
# Add the from_ argument if it is defined (this is used to get only the most recent papers/changes)
if from_:
args['from_'] = from_
# Get the relevant papers from ZORA and parse them
record_list = []
try:
print('Loading records from ZORA API...')
record_iterator = self.client.listRecords(**args)
record_list = []
count = 0
for record in record_iterator:
record_list.append(record)
count += 1
if is_debug() and count % 1000 == 0:
print(str(count))
print(count)
print('Done')
except NoRecordsMatchError:
print('No records were found')
except RemoteDisconnected as error:
print(error)
except Exception as error:
print(error)
finally:
return record_list
# This method parses a list of records from ZORA in a easier to use metadata dictionary.
def parse_records(self, record_list):
metadata_dict_list = []
print('Parsing records...')
for record in record_list:
metadata_dict = self.parse_record(record)
if metadata_dict:
metadata_dict_list.append(metadata_dict)
print('Done')
return metadata_dict_list
# This function parses a record into a dictionary with a similar structure of the Paper database object.
# To do so, it turns some unnecessary lists into single values and parses the 'subject' field into 'ddcs' (dewey
# decimal classifications), 'keywords' and 'institutes'.
#
# NOTE: It is not possible to parse the 'subject' field properly since we lack the ability to distinguish between
# keywords and institutes (some institutes contain commas --> they will get recognized as lists of keywords).
@staticmethod
def parse_record(record):
metadata_dict = {}
metadata_dict['uid'] = record[0].identifier()
# If there is no metadata, we assume that the paper has been deleted and store that information in the dict
if not record[1]:
metadata_dict['deleted'] = True
return metadata_dict
# If there is metadata available, we parse it into a convenient form
metadata_dict = {**metadata_dict, **dict(record[1].getMap())}
metadata_dict['title'] = metadata_dict['title'][
0] if 'title' in metadata_dict and len(
metadata_dict['title']) > 0 else None
metadata_dict['creators'] = metadata_dict.pop(
'creator') if 'creator' in metadata_dict else []
# If the field 'subject' starts with three digits, it is a ddc (dewey decimal classification). If it contains a
# comma-separated list, it is a list of keywords. Otherwise it is an institute.
#
# NOTE: There are some dewey decimal classifications that contain commas, therefore we check for the three
# digits before we look for comma separated lists. Some institutes contain commas as well. This
# leads to some institutes getting recognized as a list of keywords. With the information available this problem
# unfortunately cannot be solved properly.
institute_list = []
ddc_list = []
keyword_list = []
if 'subject' in metadata_dict:
for item in metadata_dict['subject']:
# If subject starts with three digits and a space, we assume its a dewey decimal classification
regex = re.compile('^\d\d\d\s+\w')
if regex.match(item):
ddc_list.append(item)
# If the subject has the same name as an institute, we assume it is an institute
elif db.session.query(Institute).filter(
Institute.name == item).first():
institute_list.append(item)
# If it is none of the above, we assume that it is a comma-separated list of keywords
else:
for keyword in item.split(','):
keyword_list.append(keyword)
metadata_dict['institutes'] = institute_list
metadata_dict['ddcs'] = ddc_list
metadata_dict['keywords'] = keyword_list
metadata_dict['description'] = metadata_dict['description'][
0] if 'description' in metadata_dict and len(
metadata_dict['description']) > 0 else None
metadata_dict['publisher'] = metadata_dict['publisher'][
0] if 'publisher' in metadata_dict and len(
metadata_dict['publisher']) > 0 else None
metadata_dict['date'] = metadata_dict['date'][
0] if 'date' in metadata_dict and len(
metadata_dict['date']) > 0 else None
# We filter the 'type' field and only store the paper type
type_list = metadata_dict.pop(
'type') if 'type' in metadata_dict else []
resource_type_list = []
for resource_type in type_list:
if db.session.query(ResourceType).filter(
ResourceType.name == resource_type).first():
resource_type_list.append(resource_type)
metadata_dict['resource_types'] = resource_type_list
metadata_dict['language'] = metadata_dict['language'][
0] if 'language' in metadata_dict and len(
metadata_dict['language']) > 0 else None
metadata_dict['relation'] = metadata_dict['relation'][
0] if 'relation' in metadata_dict and len(
metadata_dict['relation']) > 0 else None
return metadata_dict
from pdfminer.pdfparser import PDFParser
from pdfminer.pdfdocument import PDFDocument
from urllib2 import Request, urlopen
from StringIO import StringIO
# url = 'http://export.arxiv.org/api/query?search_query=all:cs&start=0&max_results=10'
# data = urllib.urlopen(url).read()
# urlpdf = 'http://arxiv.org/pdf/1510.02262v1.pdf'
# remoteFile = urlopen(Request(urlpdf)).read()
# memoryFile = StringIO(remoteFile)
# pdfFile = pyPdf.PdfFileReader(memoryFile)
# data = pyPdf.PdfFileReader(file('http://arxiv.org/pdf/1510.02262v1.pdf','r'))
# singles = [stemmer.stem(plural) for plural in plurals]
from oaipmh.client import Client
from oaipmh.metadata import MetadataRegistry, oai_dc_reader
registry = MetadataRegistry()
URL = "http://export.arxiv.org/oai2"
registry.registerReader("oai_dc", oai_dc_reader)
clt = Client(URL, registry)
ic = 0
for record in clt.listRecords(metadataPrefix="oai_dc"):
if ic > 10:
break
print record[1]["title"][0]
record[1]["identifier"][0] # arxiv_id link
ic += 1
class OaiPaperSource(PaperSource): # TODO: this should not inherit from PaperSource
"""
A paper source that fetches records from the OAI-PMH proxy
(typically: proaixy).
It uses the ListRecord verb to fetch records from the OAI-PMH
source. Each record is then converted to a :class:`BarePaper`
by an :class:`OaiTranslator` that handles the format
the metadata is served in.
"""
def __init__(self, endpoint, day_granularity=False, *args, **kwargs):
"""
This sets up the paper source.
:param endpoint: the address of the OAI-PMH endpoint
to fetch from.
:param day_granularity: should we use day-granular timestamps
to fetch from the proxy or full timestamps (default: False,
full timestamps)
See the protocol reference for more information on timestamp
granularity:
https://www.openarchives.org/OAI/openarchivesprotocol.html
"""
super(OaiPaperSource, self).__init__(*args, **kwargs)
self.registry = MetadataRegistry()
self.registry.registerReader('oai_dc', oai_dc_reader)
self.registry.registerReader('base_dc', base_dc_reader)
self.registry.registerReader('citeproc', citeproc_reader)
self.client = Client(endpoint, self.registry)
self.client._day_granularity = day_granularity
if settings.PROAIXY_API_KEY:
self.client.extra_parameters = {
'key': settings.PROAIXY_API_KEY}
self.translators = {}
# Translator management
def add_translator(self, translator):
"""
Adds the given translator to the paper source,
so that we know how to translate papers in the given format.
The paper source cannot hold more than one translator
per OAI format (it decides what translator to use
solely based on the format) so if there is already a translator
for that format, it will be overriden.
"""
self.translators[translator.format()] = translator
# Record ingestion
def ingest(self, from_date=None, metadataPrefix='any',
resumptionToken=None):
"""
Main method to fill Dissemin with papers!
:param from_date: only fetch papers modified after that date in
the proxy (useful for incremental fetching)
:param metadataPrefix: restrict the ingest for this metadata
format
"""
args = {'metadataPrefix':metadataPrefix}
if from_date:
args['from_'] = from_date
if resumptionToken:
args['resumptionToken'] = resumptionToken
records = self.client.listRecords(**args)
self.process_records(records)
def create_paper_by_identifier(self, identifier, metadataPrefix):
"""
Queries the OAI-PMH proxy for a single paper.
:param identifier: the OAI identifier to fetch
:param metadataPrefix: the format to use (a translator
has to be registered for that format, otherwise
we return None with a warning message)
:returns: a Paper or None
"""
record = self.client.getRecord(
metadataPrefix=metadataPrefix,
identifier=identifier)
return self.process_record(record[0], record[1]._map)
# Record search utilities
def listRecords_or_empty(self, source, *args, **kwargs):
"""
pyoai raises :class:`NoRecordsMatchError` when no records match,
we would rather like to get an empty list in that case.
"""
try:
return source.listRecords(*args, **kwargs)
except NoRecordsMatchError:
return []
def process_record(self, header, metadata):
"""
Saves the record given by the header and metadata (as returned by
pyoai) into a Paper, or None if anything failed.
"""
translator = self.translators.get(header.format())
if translator is None:
print("Warning: unknown metadata format %s, skipping" %
header.format())
return
paper = translator.translate(header, metadata)
if paper is not None:
try:
with transaction.atomic():
saved = Paper.from_bare(paper)
return saved
except ValueError as e:
print "Ignoring invalid paper:"
print header.identifier()
print e
def process_records(self, listRecords):
"""
Save as :class:`Paper` all the records contained in this list
"""
# check that we have at least one translator, otherwise
# it's not really worth trying…
if not self.translators:
raise ValueError("No OAI translators have been set up: " +
"We cannot save any record.")
last_report = datetime.now()
processed_since_report = 0
for record in listRecords:
header = record[0]
metadata = record[1]._map
self.process_record(header, metadata)
# rate reporting
processed_since_report += 1
if processed_since_report >= 1000:
td = datetime.now() - last_report
rate = 'infty'
if td.seconds:
rate = unicode(processed_since_report / td.seconds)
print("current rate: %s records/s" % rate)
processed_since_report = 0
last_report = datetime.now()
#-------------------------------------------------------------------------------
# Name: module1
# Purpose:
#
# Author: dd
#
# Created: 06/05/2014
# Copyright: (c) dd 2014
# Licence: <your licence>
#-------------------------------------------------------------------------------
from __future__ import absolute_import
from __future__ import print_function
from oaipmh.client import Client
from oaipmh.metadata import MetadataRegistry, oai_dc_reader
URL = ' http://www.pubmedcentral.nih.gov/oai/oai.cgi'
bla = "set=pmc-open"
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(URL, registry)
for record in client.listRecords(metadataPrefix='oai_dc', set='pmc-open'):
print(record)
registry = MetadataRegistry()
registry.registerReader('marc21', MarcXML)
client = Client(URL, registry)
start = valid_date(start_date)
stop = valid_date(stop_date)
# main
while start < stop:
from_date = start
start = start + timedelta(days=1) # increase days one by one
until_date = start
try:
records = client.listRecords(metadataPrefix='marc21',
set='SKC',
from_=from_date,
until=until_date)
saverecords(records)
except:
pass # skipping deleted entries
print('Done.')
#%% processing mrc to df
mrc_to_mrk('C:/Users/User/Desktop/nkp_nkc_2021-04-07.marc',
'C:/Users/User/Desktop/nkp_nkc_2021-04-07.mrk')
fiction_types = ['1', 'd', 'f', 'h', 'j', 'p', 'u', '|', '\\']
filter_fiction_type = get_bool('Filter with a fiction type? ')
else:
SETSPEC = None
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
registry.registerReader(METADATA_PREFIX, oai_dc_reader)
client = Client(URL, registry)
record_count = 0
deleted_count = 0
if SETSPEC:
records = client.listRecords(metadataPrefix=METADATA_PREFIX, set=SETSPEC)
else:
records = client.listRecords(metadataPrefix=METADATA_PREFIX)
for num, record in enumerate(records):
record_count += 1
delinfo = ''
if record[0].isDeleted():
deleted_count += 1
delinfo = '(deleted)'
print '%0.6d %s %s' % (num, record[0].identifier(), delinfo)
print ' %s' % ';'.join(record[0].setSpec())
print 'Harvested %s records, of which %s were deleted' % (record_count,
deleted_count)
for line in lcf:
lang, text = line.rstrip("\r\n").split("\t")
if lang == '': lang = None
lang_cache[text] = lang
lcf.close()
label_to_uri = {}
# pass 1: convert MARC data to basic RDF
oai = Client(
'https://fennica.linneanet.fi/cgi-bin/oai-pmh-fennica-asteri-aut.cgi',
registry)
#recs = oai.listRecords(metadataPrefix='marc21', set='corporateNames', from_=datetime(2019,05,15))
recs = oai.listRecords(metadataPrefix='marc21', set='corporateNames')
for oaipmhrec in recs:
convert_record(oaipmhrec)
recs = oai.listRecords(metadataPrefix='marc21', set='meetingNames')
for oaipmhrec in recs:
convert_record(oaipmhrec)
# pass 2: convert literal values to resources
for prop in (relatedCorporateBody, predecessor, successor,
hierarchicalSuperior):
for s, o in g.subject_objects(prop):
if isinstance(o, Literal):
g.remove((s, prop, o)) # remove original
res = label_to_uri.get(u"%s" % o, None)
#aka oaijson
import sys
from oaipmh.client import Client
from oaipmh.metadata import MetadataRegistry, oai_dc_reader
import simplejson as json
import couchdb
server = couchdb.Server()
db = server['dcat']
URL = 'http://cardinalscholar.bsu.edu/cgi/oai2'
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(URL, registry)
records = client.listRecords(metadataPrefix='oai_dc')
i = 0
for hdr, metadata, _ in records:
i = i + 1
print hdr.identifier()
print hdr.datestamp()
map = metadata.getMap()
map.update({'cdmcollection': 'cardinalscholar'})
db.save(map)
print 'saved ' + str(i)
def get_names (dataname):
record_prefix = "rdf:RDF/edm:ProvidedCHO"
edm_reader = MetadataReader(
fields={
'objectId': ('textList', record_prefix + '/@rdf:about'),
'spatial': ('textList', record_prefix + '/dcterms:spatial/text()'),
},
namespaces={
'oai_dc': 'http://www.openarchives.org/OAI/2.0/oai_dc/',
'dc':'http://purl.org/dc/elements/1.1/',
'dcterms':'http://purl.org/dc/terms/',
'dct': 'http://purl.org/dc/terms/',
'edm' : 'http://www.europeana.eu/schemas/edm/',
'foaf': 'http://xmlns.com/foaf/0.1/',
'owl' : 'http://www.w3.org/2002/07/owl#',
'rdf': 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
'rdfs': 'http://www.w3.org/2000/01/rdf-schema#',
'skos': 'http://www.w3.org/2004/02/skos/core#',
'xsi' : 'http://www.w3.org/2001/XMLSchema-instance',
'ore': 'http://www.openarchives.org/ore/terms/'
}
)
dictnames={}
identifier=[]
if __name__ == "__main__":
URL = 'https://data.jhn.ngo/oai'
registry = MetadataRegistry()
registry.registerReader('edm', edm_reader)
client = Client(URL, registry )
k = 0
for record in client.listRecords(metadataPrefix='edm' , set= dataname ):
output = record[1].getMap()
k = k + 1
print(k)
if output['spatial'] !=[]:
if len(output['spatial']) ==1:
if len(output['spatial'][0])>3:
if [output['spatial'][0],output['objectId'][0]] not in identifier:
identifier.append([output['spatial'][0],output['objectId'][0]])
if output['spatial'][0] not in dictnames.keys():
key = output['spatial'][0]
dictnames.setdefault(key,[])
dictnames[key].append(output['objectId'][0])
else:
key = output['spatial'][0]
dictnames[key].append(output['objectId'][0])
else:
for j in range (0,len(output['spatial'])):
if len(output['spatial'][j])>3:
if [output['spatial'][j],output['objectId'][0]] not in identifier:
identifier.append([output['spatial'][j],output['objectId'][0]])
if output['spatial'][j] not in dictnames.keys():
key = output['spatial'][j]
dictnames.setdefault(key,[])
dictnames[key].append(output['objectId'][0])
else:
key = output['spatial'][j]
dictnames[key].append(output['objectId'][0])
#print (identifier)
return dictnames
def main():
#RDF graph initialization
g = Graph()
g.bind("dc", "http://purl.org/dc/elements/1.1/")
g.bind("bibo", "http://purl.org/ontology/bibo/")
g.bind("foaf", "http://xmlns.com/foaf/0.1/")
g.bind("owl", "http://www.w3.org/2002/07/owl#")
#OAI2 access initialization
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(HEDATUZ_URL, registry)
creator_dict = {}
creator_id_count = 1
#print dir(client.listRecords)
#Iterate over each record in headatuz database
for record in client.listRecords(metadataPrefix='oai_dc'):
for item in record:
if type(item) == Metadata:
item_dict = dict(item.getMap())
##print item_dict
record_creator_list = []
creator_list = item_dict['creator']
#Get record identifier
record_id_url = urlparse(item_dict['identifier'][0])
record_id = record_id_url.path.replace('/', '')
#Iterate over each creator of the current record
for creator in creator_list:
creator_orig = creator
if creator_orig not in creator_dict.keys():
creator = creator.replace(' ', '%20')
creator_params = urllib.urlencode({'query': creator.encode('utf-8')})
req = urllib2.Request('http://viaf.org/viaf/AutoSuggest?' + creator_params)
f = urllib2.urlopen(req)
try:
json_item = simplejson.load(f, strict=False)
except Exception as e:
print e
break
#Generate creator id
#id_len = len(str(creator_id_count))
#digits = CREATOR_ID_DIGITS - id_len
#id_formatter = '%0' + str(digits) + 'd'
creator_id = creator_id_count
creator_id_count = creator_id_count + 1
#Get results from VIAF (if any)
if json_item['result']:
viaf_id = json_item['result'][0]['viafid']
#Create new Creator instance
creator = Creator(creator_orig, creator_id, viaf_id)
else:
#Create new Creator instance
creator = Creator(creator_orig, creator_id)
creator_dict[creator_orig] = creator
record_creator_list.append(creator)
else:
record_creator_list.append(creator_dict[creator_orig])
item_dict['creator'] = record_creator_list
item_type_list = item_dict['type']
if type(item_type_list) == list:
for item_type in item_type_list:
if item_type.encode('utf-8') == 'ArtÃculo':
#print 'Articulo'
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', u'http://purl.org/ontology/bibo/Article'))
elif item_type.encode('utf-8') == 'Sección de Libro':
#print 'Seccion'
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', u'http://purl.org/ontology/bibo/BookSection'))
elif item_type == u'Libro':
#print 'Libro'
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', u'http://purl.org/ontology/bibo/Book'))
elif item_type == u'PeerReviewed':
#print 'Peer'
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://purl.org/ontology/bibo/DocumentStatus', u'http://purl.org/ontology/bibo/status/peerReviewed'))
elif item_type.encode('utf-8') == 'MonografÃa':
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', u'http://purl.org/ontology/bibo/Document'))
else:
item_type = item_dict['type']
if item_type.encode('utf-8') == 'ArtÃculo':
#print 'Articulo'
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', u'http://purl.org/ontology/bibo/Article'))
elif item_type.encode('utf-8') == 'Sección de Libro':
#print 'Seccion'
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', u'http://purl.org/ontology/bibo/BookSection'))
elif item_type == u'Libro':
#print 'Libro'
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', u'http://purl.org/ontology/bibo/Book'))
elif item_type == u'PeerReviewed':
#print 'Peer'
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://purl.org/ontology/bibo/DocumentStatus', u'http://purl.org/ontology/bibo/status/peerReviewed'))
elif item_type.encode('utf-8') == 'MonografÃa':
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', u'http://purl.org/ontology/bibo/Document'))
for key in item_dict:
obj = item_dict[key]
if type(obj) == list:
for creator_item in obj:
if key == 'creator':
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://purl.org/dc/elements/1.1/creator', RDF_DOMAIN + u'resource/author/' + str(creator_item.id)))
else:
g.add((RDF_DOMAIN + u'resource/biblio/' + record_id, u'http://purl.org/dc/elements/1.1/' + key, Literal(creator_item)))
for key in creator_dict.keys():
creator = creator_dict[key]
g.add((RDF_DOMAIN + u'resource/author/' + str(creator.id), u'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', u'http://xmlns.com/foaf/0.1/Person'))
g.add((RDF_DOMAIN + u'resource/author/' + str(creator.id), u'http://xmlns.com/foaf/0.1/name', Literal(creator.name)))
if creator.viaf_id != None:
g.add((RDF_DOMAIN + u'resource/author/' + str(creator.id), u'http://www.w3.org/2002/07/owl#sameAs', VIAF_URL + creator.viaf_id))
print len(g)
#for s, p, o in g:
##print s, p, o
f = open('hedatuz.rdf', 'w')
f.write(g.serialize(format='pretty-xml'))
g.close()
f.close()
"""Put record in ElasticSearch"""
es.index(index="hhs",
doc_type="oai",
id=record['id'],
body={
"title": record['title'],
"url": getUrl(record['url']),
"genre": record['genre'],
"name": _getNames(record['name']),
"language": record['language'],
"topics": record['topics'],
"abstract": record['abstract'],
"date": datestamp,
})
for record in client.listRecords(metadataPrefix='mods'):
#print record
if record[1] is not None:
datestamp = record[0].datestamp()
record = record[1].getMap()
print datestamp, record
#print {record['title']}, {record['url'][1]}, record['genre'], ', '.join(record['name']), record['language'], ', '.join(record['topics']), record['abstract']
doc_url = getUrl(record['url'])
if doc_url is not None:
getThumb(doc_url)
#esIndex(record, datestamp)
#raw_input("Press Enter to continue...")
#Conecta com o provedor OAI-PMH
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(url_provider, registry)
print("Conexão estabelecida")
sets = client.listSets() #lista os conjuntos
print("Conjuntos encontrados")
for setSpec, setName, setDescription in sets: #percorre cada conjunto do provedor
try:
records = client.listRecords(
metadataPrefix='oai_dc',
set=setSpec) #lista os registros
print("Coletando dados do conjunto {}, do provedor {} \n".
format(setName, provider_name))
count = 1
for record in records: #percorre os registros
header, metadata, about = record
if metadata:
#getMap return dictonary with all metadata fields
doc = metadata.getMap()
doc['_id'] = re.sub('[:/.]', '-',
from oaipmh.client import Client
from oaipmh.metadata import MetadataRegistry, oai_dc_reader
import json
URL = 'http://oai.narcis.nl/oai' #?verb=GetRecord&metadataPrefix=oai_dc&identifier='
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(URL, registry)
for header, record, other in client.listRecords(metadataPrefix='oai_dc'):
if not record:
continue
datarecord = record.getMap()
datarecord['id'] = header.identifier()
datarecord['datestamp'] = str(header.datestamp())
print(json.dumps(datarecord))
def retrieval(self, repository):
self.logger.info(u'Trying to retrieve url {0}'.format(repository[1]).encode(ENCODE))
registry = MetadataRegistry()
registry.registerReader(METADATA, oai_dc_reader)
try:
client = Client(repository[1], registry)
self.logger.info(SEPARATOR)
self.logger.info(u'Connection established successfully...')
# identify info
identify = client.identify()
repository_name = identify.repositoryName()
repository_name_normalized = re.sub(re.compile(FILE_ESCAPE_CHARS), '', repository_name).strip() \
.replace(' ', '_').lower()
base_url = identify.baseURL().encode(ENCODE)
protocol_version = identify.protocolVersion().encode(ENCODE)
granularity = identify.granularity().encode(ENCODE)
compression = identify.compression()
deleted_record = identify.deletedRecord().encode(ENCODE)
metadata = {'repository_name': repository_name,
'base_url': base_url,
'latest_url': repository[1],
'protocol_version': protocol_version,
'granularity': granularity,
'compression': str(compression).strip('[]'),
'deleted_record': deleted_record}
self.logger.info(u'Repository name: {0}'.format(repository_name))
self.logger.info(u'URL connected: {0}'.format(repository[1]))
self.logger.info(u'Base URL: {0}'.format(base_url))
self.logger.info(u'Protocol version: {0}'.format(protocol_version))
self.logger.info(u'Granularity: {0}'.format(granularity))
self.logger.info(u'Compression: {0}'.format(compression))
self.logger.info(u'Deleted record: {0}'.format(deleted_record))
records_count = 0
deleted_count = 0
records_list = list()
parsed_records_list = list()
# we're not interested in all sets, so we must iterate over the ones we have and want to crawl
if repository[2] is not None:
self.logger.info(u'Fetching set {0}...'.format(repository[2]))
records_list = client.listRecords(metadataPrefix=METADATA, set=repository[2])
else:
records_list = client.listRecords(metadataPrefix=METADATA)
if records_list is not None:
for record in records_list:
records_count += 1
if record[0].isDeleted():
deleted_count += 1
if record[1] is not None:
parsed_records_list.append(tostring(record[1].element()))
self.logger.info(
u'Retrieved {0} records from set {1} where {2} were deleted'.format(records_count, repository[2],
deleted_count))
if not exists(''.join(['files/', repository_name_normalized, '/'])):
self.logger.info('Creating storage folder for {0}...'.format(repository_name))
makedirs(''.join(['files/', repository_name_normalized, '/']))
self.logger.info(u'Creating storage files...')
meta_file = open(''.join(['files/', repository_name_normalized, '/metadata.xml']), 'w')
metadata[repository[2] + '_records_number'] = records_count
metadata[repository[2] + '_deleted_number'] = deleted_count
meta_file.write(tostring(dict_to_xml('metadata', metadata)))
meta_file.close()
record_file = open(''.join(
['files/', repository_name_normalized, '/', repository_name_normalized, '_', repository[2], '.xml']),
'w')
record_file.write(''.join(parsed_records_list))
record_file.close()
except NoRecordsMatchError, nrme:
self.logger.error(u'{0} on repository {1}'.format(nrme.message, repository_name))
# add url to unvisited_url and ask retrieval to try to crawl them again
if nrme.message == 'No matches for the query':
self.unvisited_repository.append(repository)
g.namespace_manager.bind('dc', DC)
g.namespace_manager.bind('dct', DCT)
if len(sys.argv) != 4:
print >>sys.stderr, "Usage: %s <oai-pmh-provider> <set-name> <namespace-URI>" % sys.argv[0]
sys.exit(1)
provider, setname, urins = sys.argv[1:]
metans = urins[:-1] + "-meta/"
g.namespace_manager.bind(metans.split('/')[-2], Namespace(metans))
oai = Client(provider, registry)
#recs = oai.listRecords(metadataPrefix='marc21', set=setname, from_=datetime(2014,10,1))
recs = oai.listRecords(metadataPrefix='marc21', set=setname)
LANGMAP = {
'fin': 'fi',
'swe': 'sv',
}
# temporary dicts to store label/URI mappings between passes
labelmap = {} # key: prefLabel, val: URIRef
relationmap = {} # key: prefLabel, val: [ (property, prefLabel), ... ]
RELMAP = { # MARC21 control field w value to RDF property + inverse
'g': (SKOS.broader, SKOS.narrower),
'h': (SKOS.narrower, SKOS.broader),
# 'a': (DCT.replaces, DCT.isReplacedBy),
# 'b': (DCT.isReplacedBy, DCT.replaces),
def oai_metadata(oai_endpoint):
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(oai_endpoint, registry)
return make_graphs(client.listRecords(metadataPrefix='oai_dc'))
def get_names(dataname):
record_prefix = "rdf:RDF/edm:ProvidedCHO"
# Modidy/add Xpath mappings to get other fields and other objects (agent, place etc)
edm_reader = MetadataReader(
fields={
'title': ('textList', record_prefix + '/dc:title/text()'),
'creator': ('textList', record_prefix + '/dc:creator/text()'),
'subject': ('textList', record_prefix + '/dc:subject/text()'),
'description':
('textList', record_prefix + '/dc:description/text()'),
'publisher': ('textList', record_prefix + '/dc:publisher/text()'),
'contributor':
('textList', record_prefix + '/dc:contributor/text()'),
'date': ('textList', record_prefix + '/dc:date/text()'),
'type': ('textList', record_prefix + '/dc:type/text()'),
'format': ('textList', record_prefix + '/dc:format/text()'),
'identifier':
('textList', record_prefix + '/dc:identifier/text()'),
'source': ('textList', record_prefix + '/dc:source/text()'),
'language': ('textList', record_prefix + '/dc:language/text()'),
'relation': ('textList', record_prefix + '/dc:relation/text()'),
'coverage': ('textList', record_prefix + '/dc:coverage/text()'),
'rights': ('textList', record_prefix + '/dc:rights/text()'),
'spatial': ('textList', record_prefix + '/dc:spatial/text()'),
'objectId': ('textList', record_prefix + '/@rdf:about'),
},
namespaces={
'oai_dc': 'http://www.openarchives.org/OAI/2.0/oai_dc/',
'dc': 'http://purl.org/dc/elements/1.1/',
'dcterms': 'http://purl.org/dc/terms/',
'dct': 'http://purl.org/dc/terms/',
'edm': 'http://www.europeana.eu/schemas/edm/',
'foaf': 'http://xmlns.com/foaf/0.1/',
'owl': 'http://www.w3.org/2002/07/owl#',
'rdf': 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
'rdfs': 'http://www.w3.org/2000/01/rdf-schema#',
'skos': 'http://www.w3.org/2004/02/skos/core#',
'xsi': 'http://www.w3.org/2001/XMLSchema-instance',
'ore': 'http://www.openarchives.org/ore/terms/'
})
names = []
identifier = []
if __name__ == "__main__":
URL = 'https://data.jhn.ngo/oai'
registry = MetadataRegistry()
registry.registerReader('edm', edm_reader)
client = Client(URL, registry)
# To harvest specific dataset, use "set" parameter: set='AIUJE1_MARC21'
for record in client.listRecords(metadataPrefix='edm', set=dataname):
output = record[1].getMap()
if output['creator'] != []:
names.append([output['creator'][0]])
identifier.append(
[output['creator'][0], output['objectId'][0]])
if output['contributor'] != []:
names.append([output['contributor'][0]])
identifier.append(
[output['contributor'][0], output['objectId'][0]])
print(names)
return identifier
def oai_metadata(oai_endpoint):
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(oai_endpoint, registry)
return make_graphs(client.listRecords(metadataPrefix='oai_dc'))
def transfer_experiment(source):
"""
Pull public experiments from source into current mytardis.
"""
#TODO: Cleanup error messages
#TODO: does not transfer liences as not part of METS format.
#NOTE: As this is a pull we trust the data from the other tardis
# Check identity of the feed
from oaipmh.client import Client
from oaipmh import error
from oaipmh.metadata import MetadataRegistry, oai_dc_reader
from django.core.cache import cache
from django.utils.hashcompat import md5_constructor as md5
# The cache key consists of the task name and the MD5 digest
# of the feed URL.
cache_key = md5("token").hexdigest()
lock_id = "%s-lock-%s" % ("consume_experiment", cache_key)
LOCK_EXPIRE = 60 * 5
# cache.add fails if if the key already exists
acquire_lock = lambda: cache.add(lock_id, "true", LOCK_EXPIRE)
# memcache delete is very slow, but we have to use it to take
# advantage of using add() for atomic locking
release_lock = lambda: cache.delete(lock_id)
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
source_url = "%s/apps/oaipmh/?verb=Identify" % source
client = Client(source_url, registry)
try:
identify = client.identify()
except AttributeError as e:
msg = "Error reading repos identity: %s:%s" % (source, e)
logger.error(msg)
raise ReposReadError(msg)
except error.ErrorBase as e:
msg = "OAIPMH error: %s" % e
logger.error(msg)
raise OAIPMHError(msg)
except URLError as e:
logger.error(e)
raise
repos = identify.baseURL()
import urlparse
repos_url = urlparse.urlparse(repos)
dest_name = "%s://%s" % (repos_url.scheme, repos_url.netloc)
if dest_name != source:
msg = "Source directory reports incorrect name: %s" % dest_name
logger.error(msg)
raise BadAccessError(msg)
# Get list of public experiments at sources
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(
source + "/apps/oaipmh/?verb=ListRecords&metadataPrefix=oai_dc",
registry)
try:
exps_metadata = [
meta for (header, meta,
extra) in client.listRecords(metadataPrefix='oai_dc')
]
except AttributeError as e:
msg = "Error reading experiment %s" % e
logger.error(msg)
raise OAIPMHError(msg)
except error.NoRecordsMatchError as e:
msg = "no public records found on source %s" % e
logger.warn(msg)
return
local_ids = []
for exp_metadata in exps_metadata:
exp_id = exp_metadata.getField('identifier')[0]
user = exp_metadata.getField('creator')[0]
found_user = _get_or_create_user(source, user)
#make sure experiment is publicish
try:
xmldata = getURL("%s/apps/reposproducer/expstate/%s/" %
(source, exp_id))
except HTTPError as e:
msg = "cannot get public state of experiment %s" % exp_id
logger.error(msg)
raise BadAccessError(msg)
try:
exp_state = json.loads(xmldata)
except ValueError as e:
msg = "cannot parse public state of experiment %s" % exp_id
logger.error(msg)
raise BadAccessError(msg)
if not exp_state in [
Experiment.PUBLIC_ACCESS_FULL,
Experiment.PUBLIC_ACCESS_METADATA
]:
msg = 'cannot ingest private experiments.' % exp_id
logger.error(msg)
raise BadAccessError(msg)
# Get the usernames of isOwner django_user ACLs for the experiment
try:
xmldata = getURL("%s/apps/reposproducer/acls/%s/" %
(source, exp_id))
except HTTPError as e:
msg = "Cannot get acl list of experiment %s" % exp_id
logger.error(msg)
raise ReposReadError(msg)
try:
acls = json.loads(xmldata)
except ValueError as e:
msg = "cannot parse acl list of experiment %s" % exp_id
logger.error(msg)
raise BadAccessError(msg)
owners = []
for acl in acls:
if acl['pluginId'] == 'django_user' and acl['isOwner']:
user = _get_or_create_user(source, acl['entityId'])
owners.append(user.username)
else:
# FIXME: skips all other types of acl for now
pass
# Get the METS for the experiment
metsxml = ""
try:
metsxml = getURL("%s/experiment/metsexport/%s/?force_http_urls" %
(source, exp_id))
#metsxml = getURL("%s/experiment/metsexport/%s/"
#% (source, exp_id))
except HTTPError as e:
msg = "cannot get METS for experiment %s" % exp_id
logger.error(msg)
raise ReposReadError(msg)
# load schema and parametername for experiment keys
try:
key_schema = Schema.objects.get(namespace=settings.KEY_NAMESPACE)
except Schema.DoesNotExist as e:
msg = "No ExperimentKeyService Schema found"
logger.error(msg)
raise BadAccessError(msg)
try:
key_name = ParameterName.objects.get(name=settings.KEY_NAME)
except ParameterName.DoesNotExist as e:
msg = "No ExperimentKeyService ParameterName found"
logger.error(msg)
raise BadAccessError(msg)
try:
xmldata = getURL("%s/apps/reposproducer/key/%s/" %
(source, exp_id))
except HTTPError as e:
msg = "cannot get key of experiment %s" % exp_id
logger.error(msg)
raise BadAccessError(msg)
if not xmldata:
logger.warn(
"Unable to retrieve experiment %s key. Will try again later" %
exp_id)
return
try:
key_value = json.loads(xmldata)
except ValueError as e:
msg = "cannot parse key list of experiment %s" % exp_id
logger.error(msg)
raise BadAccessError(msg)
if not key_value:
logger.warn(
"Unable to retrieve experiment %s key value. Will try again later"
% exp_id)
return
logger.debug("retrieved key %s from experiment %s" %
(key_value, exp_id))
exps = Experiment.objects.all()
got_lock = True
if not acquire_lock():
logger.warning("another worker has access to consume experiment")
return
duplicate_exp = 0
for exp in exps:
#logger.warn("exp = %s" % exp.id)
params = ExperimentParameter.objects.filter(
name=key_name,
parameterset__schema=key_schema,
parameterset__experiment=exp)
#logger.warn("params.count() = %s" % params.count())
if params.count() >= 1:
key = params[0].string_value
if key == key_value:
duplicate_exp = exp.id
#logger.warn("found duplicate for %s" % duplicate_exp)
break
if duplicate_exp:
logger.warn(
"Found duplicate experiment form %s exp %s to exp %s" %
(source, exp_id, duplicate_exp))
if got_lock:
release_lock()
return
# TODO: Need someway of updating and existing experiment. Problem is
# that copy will have different id from original, so need unique identifier
# to allow matching
# We have not pulled everything we need from producer and are ready to create
# experiment.
# Make placeholder experiment and ready metadata
e = Experiment(
title='Placeholder Title',
approved=True,
created_by=found_user,
public_access=exp_state,
locked=False # so experiment can then be altered.
)
e.save()
# store the key
#eps, was_created = ExperimentParameterSet.objects.\
# get_or_create(experiment=e, schema=key_schema)
#if was_created:
# logger.warn("was created")
#ep, was_created = ExperimentParameter.objects.get_or_create(parameterset=eps,
# name=key_name,
# string_value=key_value)
#if was_created:
# logger.warn("was created again")
#ep.save()
if got_lock:
release_lock()
local_id = e.id
filename = path.join(e.get_or_create_directory(), 'mets_upload.xml')
f = open(filename, 'wb+')
f.write(metsxml)
f.close()
# Ingest this experiment META data and isOwner ACLS
eid = None
try:
eid, sync_path = _registerExperimentDocument(filename=filename,
created_by=found_user,
expid=local_id,
owners=owners)
logger.info('=== processing experiment %s: DONE' % local_id)
except:
# FIXME: what errors can mets return?
msg = '=== processing experiment %s: FAILED!' \
% local_id
logger.error(msg)
raise MetsParseError(msg)
# FIXME: if METS parse fails then we should go back and delete the placeholder experiment
exp = Experiment.objects.get(id=eid)
# so that tardis does not copy the data
for datafile in exp.get_datafiles():
datafile.stay_remote = True
datafile.save()
#import nose.tools
#nose.tools.set_trace()
# FIXME: reverse lookup of URLs seem quite slow.
# TODO: put this information into specific metadata schema attached to experiment
exp.description += get_audit_message(source, exp_id)
exp.save()
local_ids.append(local_id)
return local_ids
es.index(
index="hhs",
doc_type="oai",
id=record['id'],
body={
"title": record['title'],
"url": getUrl(record['url']),
"genre": record['genre'],
"name": _getNames(record['name']),
"language": record['language'],
"topics": record['topics'],
"abstract": record['abstract'],
"date": datestamp,
}
)
for record in client.listRecords(metadataPrefix='mods'):
#print record
if record[1] is not None:
datestamp = record[0].datestamp()
record = record[1].getMap()
print datestamp, record
#print {record['title']}, {record['url'][1]}, record['genre'], ', '.join(record['name']), record['language'], ', '.join(record['topics']), record['abstract']
doc_url = getUrl(record['url'])
if doc_url is not None:
getThumb(doc_url)
#esIndex(record, datestamp)
#raw_input("Press Enter to continue...")
def harvest(metadata_set, dest_folder, log_file, content_type,
from_date, until_date):
#############################
# ### FILESYSTEM CHECKS ### #
#############################
try:
if not os.path.isdir(dest_folder):
os.makedirs(dest_folder)
# Verify write permission inside the folder:
except BaseException as e:
log.error(str(e))
log.exit("Unable to create destination folder: %s" % dest_folder)
try:
test_path = os.path.join(dest_folder, '__test_permissions__')
os.makedirs(test_path)
os.rmdir(test_path)
except BaseException as e:
log.error(str(e))
log.exit("Unable to use destination folder: %s" % dest_folder)
try:
log_handle = open(log_file, 'a+')
log_handle.close()
except BaseException as e:
log.error(str(e))
log.exit("Unable to create log_file: %s" % log_file)
#################################
# ### OAI-PMH CONFIGURATION ### #
#################################
URL = 'https://node0-d-efg.d4science.org/efg/mvc/oai/oai.do'
metadata_prefix = 'efg'
###################################
# ### OPEN OAI-PMH CONNECTION ### #
###################################
registry = MetadataRegistry()
registry.registerReader(metadata_prefix, oai_dc_reader)
#print ("URL=" + str(URL))
client = Client(URL, registry)
####################################
# ### CHECK IF THIS SET EXISTS ### #
####################################
set_found = False
for s in client.listSets():
if metadata_set == s[0]:
set_found = True
if not set_found:
log.exit("Unable to find this set: %s" % metadata_set)
#############################
# ### RETRIEVE METADATA ### #
#############################
if from_date is not None:
from_date = parse_date(from_date)
if from_date is None:
log.exit("Unable to convert from date")
if until_date is not None:
until_date = parse_date(until_date)
if until_date is None:
log.exit("Unable to convert until date")
report_data = {
'downloaded': 0,
'filtered': 0,
'saved': 0,
'saved_files': [],
'missing_sourceid': [],
'wrong_content_type': []
}
timestamp = int(1000 * time.time())
log.info("Retrieving records for %s..." % metadata_set)
try:
records = client.listRecords(
metadataPrefix=metadata_prefix,
set=metadata_set,
from_=from_date,
until=until_date)
except NoRecordsMatchError as e:
log.exit(e)
log.info("Records retrieved, extracting...")
try:
for record in records:
element = record[1].element()
# Obtained eTree is based on namespaced XML
# Read: 19.7.1.6. Parsing XML with Namespaces
# https://docs.python.org/2/library/xml.etree.elementtree.html
# find(match)
# Finds the first subelement matching match.
# match may be a tag name or path.
# Returns an element instance or None.
# findall(match)
# Finds all matching subelements, by tag name or path.
# Returns a list containing all matching elements
# in document order.
report_data['downloaded'] += 1
if report_data['downloaded'] % 100 == 0:
print('.', end='', flush=True)
if report_data['downloaded'] % 5000 == 0:
print(
' %s downloaded - %s saved' % (
report_data['downloaded'],
report_data['saved']
), flush=True)
efgEntity = element.find(tag("efgEntity"))
if efgEntity is None:
# log.warning("efgEntity not found, skipping record")
continue
avcreation = efgEntity.find(tag("avcreation"))
nonavcreation = efgEntity.find(tag("nonavcreation"))
if avcreation is not None:
manifestation = avcreation.find(tag("avManifestation"))
recordSource = avcreation.find(tag("recordSource"))
keywords = avcreation.findall(tag("keywords"))
title_el = avcreation.find(tag("identifyingTitle"))
title = (title_el.text
if title_el is not None
else "Unknown title")
elif nonavcreation is not None:
manifestation = nonavcreation.find(tag("nonAVManifestation"))
recordSource = nonavcreation.find(tag("recordSource"))
keywords = nonavcreation.findall(tag("keywords"))
title_el = nonavcreation.find(tag("title"))
title = (title_el.find(tag("text")).text
if title_el is not None
else "Unknown title")
else:
title = "Unknown title"
# log.warning("(non)avcreation not found, skipping record")
continue
filter_keyword = "IMediaCities"
is_good = False
for keyword in keywords:
term = keyword.find(tag("term"))
if term.text == filter_keyword:
is_good = True
break
if not is_good:
continue
report_data['filtered'] += 1
if manifestation is None:
report_data['missing_sourceid'].append(title)
# log.warning("avManifestation not found, skipping record")
continue
if content_type is not None:
content_type = content_type.lower()
item = manifestation.find(tag("item"))
if item is None:
# missing <item> => type cannot be found
report_data['wrong_content_type'].append(title)
continue
item_type = item.find(tag("type"))
if item_type is None:
# missing <type>
report_data['wrong_content_type'].append(title)
continue
if item_type.text.lower() != content_type:
# wrong type
report_data['wrong_content_type'].append(title)
continue
# ATTENZIONE: il sourceID va preso dal recordSource che sta
# sotto avcreation/nonavcreation e NON sotto
# avManifestation/nonAVManifestation
#recordSource = manifestation.find(tag("recordSource"))
if recordSource is None:
report_data['missing_sourceid'].append(title)
# log.warning("recordSource not found, skipping record")
continue
sourceID = recordSource.find(tag("sourceID"))
if sourceID is None:
report_data['missing_sourceid'].append(title)
# log.warning("sourceID not found, skipping record")
continue
content = etree.tostring(efgEntity, pretty_print=False)
# id_text = urllib.parse.quote_plus(sourceID.text.strip())
# replace non alpha-numeric characters with a dash
id_text = re.sub(r'[\W_]+', '-', sourceID.text.strip())
# fine cinzia
filename = "%s_%s_%s.xml" % (
metadata_set,
id_text,
timestamp
)
filepath = os.path.join(dest_folder, filename)
# with open(filepath, 'wb') as f:
with codecs.open(filepath, 'wb', "utf-8") as f:
f.write(content.decode('utf-8'))
# OLD
#with codecs.open(filepath, 'wb', "utf-8") as f:
# f.write(html.unescape(content.decode('utf-8')))
report_data['saved'] += 1
report_data['saved_files'].append(filename)
except NoRecordsMatchError as e:
log.warning("No more records after filtering?")
log.warning(e)
# ###################
# Write report file
# ###################
# the procedure writes a report file containing the results
# of the harvesting:
# the list of records that do not contain the record ID
# (by writing the content of the element title)
with open(log_file, 'w+') as f:
json.dump(report_data, f)
f.close()
# Just to close previous dot line
print("")
log.info("""
%s records from set [%s] downloaded
open log file [%s] for details
""" % (report_data['saved'], metadata_set, log_file)
)
def oaiSpider(subject="hep-ex", section="physics", start=None, end=None, sleep_time = 0):
'''
Pull articles using the Open Archives Initiative protocol
subject - String defining the subset of the main section
section - String defining the main section (typically physics or nothing)
start - A datetime.datetime object restricting the starting date of returned articles
end - A datetime.datetime object restricting the ending date of the returned articles
sleep_time - A number specifying how many ms to wait between the record queries
Examples
oaiSpider("hep-ex", "physics")
==> returns all HEP experiment articles
oaiSpider("cs", "", datetime(2011,06,24))
==> returns all computer science articles submitted after June 24th, 2011
oaiSpider("hep-ph", "physics", None, datetime(2011,06, 24))
==> returns all HEP phenomenology articles submitted before June 24th, 2011
Returns a list of dictionaries containing the article metadata
'''
from oaipmh.client import Client
from oaipmh.metadata import MetadataRegistry, oai_dc_reader
base_url = "http://export.arxiv.org/oai2"
output = []
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(base_url, registry)
client.updateGranularity()
if section == None:
section = ""
if len(section) > 0 and section[-1] != ":":
section += ":"
# sets = client.listSets()
# for entry in sets:
# print entry
### OAIPMH module sucks donkey balls
# Causes some error when I use the from_ or until keys
records = client.listRecords(metadataPrefix='oai_dc'
, set='%s%s' % (section, subject)
, from_=start
#, from_=datestamp
, until=end
)
counter = 0
for (header, metadata, aux) in records:
print counter
# for key in metadata._map.keys():
# print key, metadata[key]
output.append({"title" : cleanText(metadata["title"][0]),
"abstract" : cleanText(metadata["description"][0]),
"date" : convertDate(max(metadata["date"])),
"subject" : subject,
"url" : metadata["identifier"][0],
"authors" : "; ".join( metadata['creator']),
})
print output[-1]
counter += 1
# break
# if counter > 15:
# break
time.sleep(sleep_time)
return output
"""Returns the PyMARC record from the OAI structure for MARC XML"""
def __call__(self, element):
print element[0][1].text
handler = marcxml.XmlHandler()
marcxml.parse_xml(StringIO(tostring(element[0])), handler)
return handler.records[0]
marcxml_reader = MARCXMLReader()
# Defining of metadata Readers in the Registry
from oaipmh import metadata
registry = metadata.MetadataRegistry()
registry.registerReader('marc21', marcxml_reader)
#### OAI-PMH Client processing
oai = Client('http://snape.mzk.cz/OAI-script', registry)
recs = oai.listRecords(metadataPrefix='marc21', set='MZK03')
for rec in recs:
print rec[0].identifier()
r = rec[1] # Get pyMARC representation
print r['856']
print r['034']
print r['008']
print
registry = metadata.MetadataRegistry()
registry.registerReader("marc21", marcxml_reader)
g = Graph()
g.namespace_manager.bind("skos", SKOS)
g.namespace_manager.bind("cn", CN)
g.namespace_manager.bind("dc", DC)
g.namespace_manager.bind("dct", DCT)
g.namespace_manager.bind("rdaa", RDAA)
g.namespace_manager.bind("rdac", RDAC)
oai = Client("https://fennica.linneanet.fi/cgi-bin/oai-pmh-fennica-asteri-aut.cgi", registry)
# recs = oai.listRecords(metadataPrefix='marc21', set='corporateNames', from_=datetime(2013,1,1))
recs = oai.listRecords(metadataPrefix="marc21", set="corporateNames")
lang_cache = {}
lcf = codecs.open(LANG_CACHE_FILE, "r", "utf-8")
for line in lcf:
lang, text = line.rstrip("\r\n").split("\t")
if lang == "":
lang = None
lang_cache[text] = lang
lcf.close()
label_to_uri = {}
def guess_language(text):
"""return the most likely language for the given unicode text string"""
def indexCollection(URL, url_base, metadata_prefix, collection, action):
#pull data from OAI endpoint
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(URL, registry, force_http_get=True)
harvested_data = []
for record in client.listRecords(metadataPrefix=metadata_prefix,
set=collection):
if not record[0].isDeleted():
fields = record[1].getMap()
if fields['subject']:
fields['subjects'] = fields['subject'][0].split(';')
del fields['subject']
fields['set'] = record[0].setSpec()
identifier = record[0].identifier().split(':')[2]
fields[
'image_url_base'] = url_base + '/digital/iiif/' + identifier + '/'
harvested_data.append(fields)
if action is 'reindex':
es.indices.delete(index='digital_collection_recs', ignore=[400, 404])
mapping = {
"mappings": {
"_doc": {
"properties": {
"title": {
"type": "text"
},
"creator": {
"type": "text"
},
"subjects": {
"type": "text"
},
"description": {
"type": "text"
},
"publisher": {
"type": "text"
},
"contributor": {
"type": "text"
},
"date": {
"type": "text"
},
"type": {
"type": "text",
"fielddata": "true"
},
"format": {
"type": "text",
"fielddata": "true"
},
"identifier": {
"type": "text"
},
"source": {
"type": "text"
},
"language": {
"type": "text",
"fielddata": "true"
},
"relation": {
"type": "text"
},
"coverage": {
"type": "text"
},
"rights": {
"type": "text"
},
"set": {
"type": "text",
"fielddata": "true"
},
"image_url_base": {
"type": "text"
}
}
}
}
}
es.indices.create(index='digital_collection_recs', body=mapping)
helpers.bulk(es,
harvested_data,
index='digital_collection_recs',
doc_type='_doc')
return "success"
# arXiv OAI url we will query
URL = "http://export.arxiv.org/oai2"
# Create OAI client; now we're all set for listing some records
client = Client(URL, registry)
# Open files for writing
titlef = open(title_file, 'w')
#abstractf = open(abstr_file, 'w')
# Keep track of run-time and number of papers
start_time = time.time()
count = 0
# Harvest
for record in client.listRecords(metadataPrefix='oai_dc', set=section):
try:
# Extract the title
title = record[1].getField('title')[0]
# Extract the abstract
abstract = record[1].getField('abstract')[0]
# And get the date (this is stored as yyyy-mm-dd in the arXiv metadata)
date = record[1].getField('date')[0]
year = int(date[0:4])
month = int(date[5:7])
# Write to file (add year info to the titles)
titlef.write("%d %d " % (year, month) + title + "\n")
# abstractf.write(abstract + "\n")
count += 1
from rdflib import URIRef, Graph, Literal, Namespace
from oaipmh.client import Client
from oaipmh.metadata import MetadataRegistry, oai_dc_reader
easy_id = Namespace('https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:')
def easy_url(oai_id):
namespace, dataset = oai_id.rsplit(':', 1)
if namespace != 'oai:easy.dans.knaw.nl:easy-dataset':
raise(Exception("Unknown namespace: {0}".format(namespace)))
return easy_id[dataset]
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client('http://easy.dans.knaw.nl/oai/', registry)
graph = Graph()
graph.namespace_manager.bind('dc11', 'http://purl.org/dc/elements/1.1/')
dc11 = Namespace('http://purl.org/dc/elements/1.1/')
# max_count = 30000
for count, (header, metadata, _) in enumerate(client.listRecords(metadataPrefix='oai_dc')):
# if count >= max_count:
# break
if metadata is not None:
metadata_fields = metadata.getMap().iteritems()
s = easy_url(header.identifier())
for p, vv in metadata_fields:
for v in vv:
graph.add((s, dc11[p], Literal(v)))
graph.serialize('easy-lod.nt', format='nt')
#!/usr/bin/env python
# Dependencies
# pioai - OAI-PMH Python Module - http://infrae.com/download/OAI/pyoai
from oaipmh.client import Client
from oaipmh.metadata import MetadataRegistry, oai_dc_reader
oaiSourceURL = 'http://digitalrepository.unm.edu/do/oai/'
registry = MetadataRegistry()
registry.registerReader('oai_dc', oai_dc_reader)
client = Client(oaiSourceURL, registry)
with open("output.txt","w") as outfile:
for record in client.listRecords(metadataPrefix='oai_dc', max=10):
outfile.write(repr(record)+"\n")
