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"""RDF utilities
This module is a collection of functions that handle SPARQL queries.
"""
import re
from typing import Tuple
from string import Template
from SPARQLWrapper import JSON, SPARQLWrapper
from pymonad.maybe import Just
from gn3.monads import MonadicDict
def sparql_query(
sparql_conn: SPARQLWrapper, query: str
) -> Tuple[MonadicDict, ...]:
"""Run a SPARQL query and return the bound variables."""
sparql_conn.setQuery(query)
sparql_conn.setReturnFormat(JSON)
results = sparql_conn.queryAndConvert()
if _r := results["results"]["bindings"]: # type: ignore
return (*(MonadicDict(bindings) for bindings in _r),) # type: ignore
return (MonadicDict(),)
def get_dataset_metadata(
sparql_conn: SPARQLWrapper, name: str
) -> MonadicDict:
"""Return info about dataset with a given NAME"""
__metadata_query = """
PREFIX gn: <http://genenetwork.org/>
SELECT ?accession_id ?dataset_group ?status ?title ?geo_series ?specifics ?summary ?about_tissue
?about_platform ?about_data_processing ?notes ?experiment_design ?contributors ?citation ?acknowledgement
?platform_name ?tissue_name ?normalization_name ?species_name ?inbred_set_name
?name ?address ?city ?state ?zip ?phone ?email ?country ?homepage
WHERE {
?dataset gn:accessionId ?accession_id ;
rdf:type gn:dataset ;
gn:name "$name" .
OPTIONAL { ?dataset gn:aboutDataProcessing ?about_data_processing } .
OPTIONAL { ?dataset gn:aboutPlatform ?about_platform } .
OPTIONAL { ?dataset gn:aboutTissue ?about_tissue } .
OPTIONAL { ?dataset gn:acknowledgement ?acknowledgement } .
OPTIONAL { ?dataset gn:citation ?citation } .
OPTIONAL { ?dataset gn:contributors ?contributors } .
OPTIONAL { ?dataset gn:datasetGroup ?dataset_group } .
OPTIONAL { ?dataset gn:datasetStatus ?status } .
OPTIONAL { ?dataset gn:experimentDesign ?experiment_design } .
OPTIONAL { ?dataset gn:geoSeries ?geo_series } .
OPTIONAL { ?dataset gn:notes ?notes } .
OPTIONAL { ?dataset gn:specifics ?specifics } .
OPTIONAL { ?dataset gn:summary ?summary } .
OPTIONAL { ?dataset gn:title ?title } .
OPTIONAL {
?dataset gn:normalization ?normalization .
?normalization gn:name ?normalization_name .
} .
OPTIONAL {
?dataset gn:datasetOfPlatform ?platform .
?platform gn:name ?platform_name .
} .
OPTIONAL {
?dataset gn:datasetOfTissue ?tissue .
?tissue gn:name ?tissue_name .
} .
OPTIONAL {
?dataset gn:datasetOfSpecies ?species ;
gn:datasetOfInbredSet ?inbred_set .
?species gn:name ?species_name .
?inbred_set gn:name ?inbred_set_name .
} .
OPTIONAL {
?dataset gn:datasetOfInvestigator ?investigator .
OPTIONAL { ?investigator foaf:name ?name . }
OPTIONAL { ?investigator gn:address ?address . }
OPTIONAL { ?investigator gn:city ?city . }
OPTIONAL { ?investigator gn:state ?state . }
OPTIONAL { ?investigator gn:zipCode ?zip . }
OPTIONAL { ?investigator foaf:phone ?phone . }
OPTIONAL { ?investigator foaf:mbox ?email . }
OPTIONAL { ?investigator gn:country ?country . }
OPTIONAL { ?investigator foaf:homepage ?homepage . }
}
}
"""
result: MonadicDict = MonadicDict()
for key, value in sparql_query(
sparql_conn,
Template(__metadata_query).substitute(name=name)
)[0].items():
result[key] = value.bind(lambda x: Just(x["value"]))
return result
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