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-rw-r--r--fatcat_scholar/sandcrawler.py11
-rw-r--r--fatcat_scholar/work_pipeline.py35
-rw-r--r--tests/test_work_pipeline.py16
3 files changed, 62 insertions, 0 deletions
diff --git a/fatcat_scholar/sandcrawler.py b/fatcat_scholar/sandcrawler.py
index 356b373..9b033b8 100644
--- a/fatcat_scholar/sandcrawler.py
+++ b/fatcat_scholar/sandcrawler.py
@@ -38,6 +38,17 @@ class SandcrawlerPostgrestClient:
else:
return None
+ def get_crossref(self, doi: str) -> Optional[Dict[str, Any]]:
+ resp = requests.get(
+ self.api_url + "/crossref", params=dict(doi="eq." + doi)
+ )
+ resp.raise_for_status()
+ resp_json = resp.json()
+ if resp_json:
+ return resp_json[0]
+ else:
+ return None
+
class SandcrawlerMinioClient:
def __init__(
diff --git a/fatcat_scholar/work_pipeline.py b/fatcat_scholar/work_pipeline.py
index 7b477a0..b90b747 100644
--- a/fatcat_scholar/work_pipeline.py
+++ b/fatcat_scholar/work_pipeline.py
@@ -218,6 +218,33 @@ class WorkPipeline:
webcapture_ident=wc.ident,
)
+ def fetch_crossref(
+ self, re: ReleaseEntity
+ ) -> Optional[Dict[str, Any]]:
+ """
+ Fetches (cached) crossref metadata JSON from sandcrawler-db via
+ postgrest HTTP interface.
+
+ Returns a JSON object on success, or None if not found.
+
+ release_ident: Optional[str]
+ doi: Optional[str]
+ record: Optional[str]
+ """
+ if not re.ext_ids.doi:
+ # can't do lookup without a DOI
+ return None
+ if re.extra and (not re.extra.get('crossref')) and (re.extra.get('datacite') or re.extra.get('jalc')):
+ # if this is definitely a Datacite or JALC DOI, can skip the Crossref cache lookup
+ return None
+ doi = re.ext_ids.doi.lower()
+ crossref_meta = self.sandcrawler_db_client.get_crossref(doi)
+ if not crossref_meta or not crossref_meta.get("record"):
+ return None
+ return dict(
+ release_ident=re.ident, doi=doi, record=crossref_meta["record"],
+ )
+
def lookup_sim(self, release: ReleaseEntity) -> Optional[SimIssueRow]:
"""
Checks in IssueDB to see if this release is likely to have a copy in a
@@ -385,6 +412,14 @@ class WorkPipeline:
if sim_fulltext:
break
+ # lookup best available crossref biblio metadata
+ biblio_crossref = None
+ for ident in pref_idents:
+ release = release_dict[ident]
+ biblio_crossref = self.fetch_crossref(release_dict[pref_idents[0]])
+ if biblio_crossref:
+ break
+
return IntermediateBundle(
doc_type=DocType.work,
releases=releases,
diff --git a/tests/test_work_pipeline.py b/tests/test_work_pipeline.py
index e0e4a82..bf423b7 100644
--- a/tests/test_work_pipeline.py
+++ b/tests/test_work_pipeline.py
@@ -69,6 +69,22 @@ def test_run_transform(mocker: Any) -> None:
],
)
+ responses.add(
+ responses.GET,
+ "http://disabled-during-tests-bogus.xyz:3333/crossref?doi=eq.10.7717%2Fpeerj.4375",
+ status=200,
+ json=[
+ {
+ "doi": "10.7717/peerj.4375",
+ "indexed": "2020-07-07T02:15:52.98309+00:00",
+ "record": {
+ "title": "something",
+ "TODO_better_object": 3,
+ },
+ }
+ ],
+ )
+
es_raw = mocker.patch("fatcat_scholar.work_pipeline.WorkPipeline.fetch_file_grobid")
es_raw.side_effect = [
{"tei_xml": "<xml>dummy", "release_ident": "asdf123", "file_ident": "xyq9876"},