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use std::collections::HashMap;
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use oxigraph::model::NamedNode;
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use oxigraph::sparql::results::{QueryResultsFormat, QueryResultsParser, SliceQueryResultsParserOutput};
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use gl_inference::Channel;
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use gl_inference::proto::ontology_client::OntologyClient;
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use gl_inference::proto::OntologyQueryRequest;
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use gl_search::{Field, OwnedValue, Schema};
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use crate::class::Class;
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use crate::{curie, CurieHelper};
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use crate::helpers::{term_as_str, term_to_named_node};
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use crate::language::LanguageCondition;
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pub async fn index_ontology(
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client: &mut OntologyClient<Channel>,
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language: &LanguageCondition,
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) -> crate::Result<Vec<HashMap<Field, OwnedValue>>> {
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let curie_helper = CurieHelper::new((&*curie::PREFIXES).clone());
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let label_filter = language.to_filter_expression("label");
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let description_filter = language.to_filter_expression("description");
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let mut request = OntologyQueryRequest::default();
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request.sparql_query = format!(r#"PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
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PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
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PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
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SELECT ?class ?subject ?label ?description WHERE {{
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VALUES ?class {{ rdf:Property rdfs:Class skos:Concept }}
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?subject a ?class ;
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rdfs:label ?label .
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{label_filter}
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OPTIONAL {{ ?subject rdfs:comment ?comment }}
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OPTIONAL {{ ?subject skos:definition ?definition }}
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BIND(COALESCE(?definition, ?comment) AS ?description)
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{description_filter}
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}}"#);
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let response = client.query(request).await.unwrap();
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let parser_output = QueryResultsParser::from_format(QueryResultsFormat::Json)
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.for_slice(&response.get_ref().results)
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.unwrap();
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let mut results = Vec::new();
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if let SliceQueryResultsParserOutput::Solutions(solutions) = parser_output {
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let primary_language = language.primary_language();
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let label_field = Schema::field("label", primary_language);
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let definition_field = Schema::field("definition", primary_language);
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for solution in solutions.filter_map(Result::ok) {
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let mut document = HashMap::with_capacity(4);
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let discriminant = solution
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.get("class")
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.and_then(term_to_named_node)
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.and_then(Class::try_from_named_node)
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.map(|doc_type| doc_type as u64)
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.map(OwnedValue::U64)
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.unwrap_or(OwnedValue::Null);
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document.insert(Schema::discriminant_field(), discriminant);
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let subject_str = solution
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.get("subject")
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.and_then(term_to_named_node)
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.map(NamedNode::as_str);
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let curie = subject_str
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.and_then(|subject| curie_helper.abbreviate(None, subject))
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.map(OwnedValue::Str)
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.unwrap_or(OwnedValue::Null);
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document.insert(Schema::curie_field(), curie);
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let subject = subject_str
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.map(OwnedValue::from)
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.unwrap_or(OwnedValue::Null);
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document.insert(Schema::iri_field(), subject);
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let label = solution
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.get("label")
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.and_then(term_as_str)
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.map(OwnedValue::from)
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.unwrap_or(OwnedValue::Null);
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document.insert(label_field, label);
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let definition = solution
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.get("description")
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.and_then(term_as_str)
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.map(OwnedValue::from)
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.unwrap_or(OwnedValue::Null);
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document.insert(definition_field, definition);
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results.push(document);
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}
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}
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Ok(results)
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}
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