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from .elasticsearch import release_to_elasticsearch
def release_ingest_request(release, oa_only=False, ingest_request_source='fatcat'):
"""
Takes a full release entity object and returns an ingest request (as dict),
or None if it seems like this release shouldn't be ingested.
The release entity should have the container, file, fileset, and webcapture
fields set.
The 'oa_only' boolean flag indicates that we should only return an ingest
request if we have reason to believe this is an OA release (or, eg, in
arxiv or pubmed central). Respecting this flag means we are likely to miss
a lot of "hybrid" and "bronze" content, but could reduce load
significantly.
The type of the ingest request may depend on release type and container
metadata (eg, as to whether we expect a PDF, datasets, web page), so
calling code should check the returned type field.
"""
if release.state != 'active':
return None
# generate a URL where we expect to find fulltext
url = None
expect_mimetypes = []
if release.ext_ids.arxiv:
url = "https://arxiv.org/pdf/{}.pdf".format(release.ext_ids.arxiv)
expect_mimetypes = ['application/pdf']
elif release.ext_ids.pmcid:
#url = "https://www.ncbi.nlm.nih.gov/pmc/articles/{}/pdf/".format(release.ext_ids.pmcid)
url = "http://europepmc.org/backend/ptpmcrender.fcgi?accid={}&blobtype=pdf".format(release.ext_ids.pmcid)
expect_mimetypes = ['application/pdf']
elif release.ext_ids.doi:
url = "https://doi.org/{}".format(release.ext_ids.doi)
if not url:
return None
ext_ids = dict()
for k in ('doi', 'pmid', 'pmcid', 'arxiv'):
v = getattr(release.ext_ids, k)
if v:
ext_ids[k] = v
if oa_only and not ext_ids.get('arxiv') and not ext_ids.get('pmcid'):
es = release_to_elasticsearch(release)
if not es['is_oa']:
return None
ingest_request = {
'ingest_type': 'file',
'ingest_request_source': ingest_request_source,
'base_url': url,
'fatcat': {
'release_stage': release.release_stage,
'release_ident': release.ident,
'work_ident': release.work_id,
},
'ext_ids': ext_ids,
'expect_mimetypes': expect_mimetypes or None,
}
return ingest_request
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