mapping relationship from trasformed records based on oaf:relation

dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/raw/AbstractMdRecordToOafMapper.java

@@ -18,14 +18,7 @@ import static eu.dnetlib.dhp.schema.oaf.utils.OafMapperUtils.oaiIProvenance;
 import static eu.dnetlib.dhp.schema.oaf.utils.OafMapperUtils.qualifier;
 import static eu.dnetlib.dhp.schema.oaf.utils.OafMapperUtils.structuredProperty;
 
-import java.util.ArrayList;
+import java.util.*;
-import java.util.Arrays;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
-import java.util.Set;
 
 import org.apache.commons.lang3.StringUtils;
 import org.dom4j.*;
@@ -35,6 +28,7 @@ import com.google.common.collect.Sets;
 
 import eu.dnetlib.dhp.common.vocabulary.VocabularyGroup;
 import eu.dnetlib.dhp.schema.common.ModelConstants;
+import eu.dnetlib.dhp.schema.common.ModelSupport;
 import eu.dnetlib.dhp.schema.oaf.AccessRight;
 import eu.dnetlib.dhp.schema.oaf.Author;
 import eu.dnetlib.dhp.schema.oaf.Context;
@@ -199,8 +193,13 @@ public abstract class AbstractMdRecordToOafMapper {
 		final List<Oaf> oafs = Lists.newArrayList(entity);
 
 		if (!oafs.isEmpty()) {
-			oafs.addAll(addProjectRels(doc, entity));
+			Set<Oaf> rels = Sets.newHashSet();
-			oafs.addAll(addOtherResultRels(doc, entity));
+
+			rels.addAll(addProjectRels(doc, entity));
+			rels.addAll(addOtherResultRels(doc, entity));
+			rels.addAll(addRelations(doc, entity));
+
+			oafs.addAll(rels);
 		}
 
 		return oafs;
@@ -278,6 +277,52 @@ public abstract class AbstractMdRecordToOafMapper {
 		return res;
 	}
 
+	private List<Oaf> addRelations(Document doc, OafEntity entity) {
+
+		final List<Oaf> rels = Lists.newArrayList();
+
+		for (Object o : doc.selectNodes("//oaf:relation")) {
+			Element element = (Element) o;
+
+			final Relation rel = new Relation();
+			rel.setCollectedfrom(entity.getCollectedfrom());
+			rel.setDataInfo(entity.getDataInfo());
+			rel.setLastupdatetimestamp(entity.getLastupdatetimestamp());
+
+			String relType = element.attributeValue("relType");
+			String subRelType = element.attributeValue("subRelType");
+			String relClass = element.attributeValue("relClass");
+			String relClassInverse = ModelSupport
+				.findInverse(ModelSupport.rel(relType, subRelType, relClass))
+				.getInverseRelClass();
+
+			rel.setSource(entity.getId());
+			String target = StringUtils.trim(element.getText());
+
+			final String validationdDate = ((Node) o).valueOf("@validationDate");
+
+			if (StringUtils.isNotBlank(target)) {
+
+				// TODO discover the target entity type with a dedicated attribute, e.g. @targetType.
+				final String[] parts = relType.split("(?=\\p{Upper})");
+				final String targetType = parts[1].toLowerCase();
+				final String targetId = createOpenaireId(targetType, target, true);
+
+				rels
+					.add(
+						getRelation(
+							entity.getId(), targetId, relType, subRelType, relClass, entity, validationdDate));
+				rels
+					.add(
+						getRelation(
+							targetId, entity.getId(), relType, subRelType, relClassInverse, entity, validationdDate));
+			}
+
+		}
+
+		return rels;
+	}
+
 	protected Relation getRelation(final String source,
 		final String target,
 		final String relType,

dhp-workflows/dhp-graph-mapper/src/test/java/eu/dnetlib/dhp/oa/graph/raw/MappersTest.java

@@ -57,14 +57,10 @@ class MappersTest {
 
 		final List<Oaf> list = new OafToOafMapper(vocs, false, true).processMdRecord(xml);
 
-		assertEquals(3, list.size());
+		assertEquals(1, list.stream().filter(o -> o instanceof Publication).count());
-		assertTrue(list.get(0) instanceof Publication);
+		assertEquals(4, list.stream().filter(o -> o instanceof Relation).count());
-		assertTrue(list.get(1) instanceof Relation);
-		assertTrue(list.get(2) instanceof Relation);
 
-		final Publication p = (Publication) list.get(0);
+		Publication p = (Publication) list.stream().filter(o -> o instanceof Publication).findFirst().get();
-		final Relation r1 = (Relation) list.get(1);
-		final Relation r2 = (Relation) list.get(2);
 
 		assertValidId(p.getId());
 
@@ -125,26 +121,58 @@ class MappersTest {
 
 		assertNotNull(p.getBestaccessright());
 		assertEquals("OPEN", p.getBestaccessright().getClassid());
-		assertValidId(r1.getSource());
+
-		assertValidId(r1.getTarget());
+		// RESULT PROJECT
-		assertValidId(r2.getSource());
+		List<Relation> resultProject = list
-		assertValidId(r2.getTarget());
+			.stream()
-		assertValidId(r1.getCollectedfrom().get(0).getKey());
+			.filter(o -> o instanceof Relation)
-		assertValidId(r2.getCollectedfrom().get(0).getKey());
+			.map(o -> (Relation) o)
-		assertNotNull(r1.getDataInfo());
+			.filter(r -> ModelConstants.RESULT_PROJECT.equals(r.getRelType()))
-		assertNotNull(r2.getDataInfo());
+			.collect(Collectors.toList());
-		assertNotNull(r1.getDataInfo().getTrust());
+
-		assertNotNull(r2.getDataInfo().getTrust());
+		assertEquals(2, resultProject.size());
-		assertEquals(r1.getSource(), r2.getTarget());
+		final Relation rp1 = resultProject.get(0);
-		assertEquals(r2.getSource(), r1.getTarget());
+		final Relation rp2 = resultProject.get(1);
-		assertTrue(StringUtils.isNotBlank(r1.getRelClass()));
+
-		assertTrue(StringUtils.isNotBlank(r2.getRelClass()));
+		verifyRelation(rp1);
-		assertTrue(StringUtils.isNotBlank(r1.getRelType()));
+		verifyRelation(rp2);
-		assertTrue(StringUtils.isNotBlank(r2.getRelType()));
+
-		assertTrue(r1.getValidated());
+		assertTrue(rp1.getValidated());
-		assertTrue(r2.getValidated());
+		assertTrue(rp2.getValidated());
-		assertEquals("2020-01-01", r1.getValidationDate());
+		assertEquals("2020-01-01", rp1.getValidationDate());
-		assertEquals("2020-01-01", r2.getValidationDate());
+		assertEquals("2020-01-01", rp2.getValidationDate());
+
+		assertEquals(rp1.getSource(), rp2.getTarget());
+		assertEquals(rp2.getSource(), rp1.getTarget());
+
+		// AFFILIATIONS
+		List<Relation> affiliation = list
+			.stream()
+			.filter(o -> o instanceof Relation)
+			.map(o -> (Relation) o)
+			.filter(r -> ModelConstants.RESULT_ORGANIZATION.equals(r.getRelType()))
+			.collect(Collectors.toList());
+
+		assertEquals(2, affiliation.size());
+		final Relation aff1 = affiliation.get(0);
+		final Relation aff2 = affiliation.get(1);
+
+		verifyRelation(aff1);
+		verifyRelation(aff2);
+
+		assertEquals(aff1.getSource(), aff2.getTarget());
+		assertEquals(aff2.getSource(), aff1.getTarget());
+	}
+
+	private void verifyRelation(Relation r) {
+		assertValidId(r.getSource());
+		assertValidId(r.getTarget());
+		assertValidId(r.getCollectedfrom().get(0).getKey());
+		assertNotNull(r.getDataInfo());
+		assertNotNull(r.getDataInfo().getTrust());
+		assertTrue(StringUtils.isNotBlank(r.getRelClass()));
+		assertTrue(StringUtils.isNotBlank(r.getRelType()));
+
 	}
 
 	@Test

dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/raw/oaf_record.xml

@@ -60,6 +60,13 @@
     <oaf:fulltext>https://oneecosystem.pensoft.net/article/13718/</oaf:fulltext>
     <oaf:journal eissn="2367-8194" issn="">One Ecosystem</oaf:journal>
     <oaf:refereed>0001</oaf:refereed>
+    <oaf:relation relClass="hasAuthorInstitution"
+                  relType="resultOrganization"
+                  subRelType="affiliation">ror_________::https://ror.org/02gdcn153</oaf:relation>
+    <oaf:relation relClass="isProducedBy"
+                  relType="resultProject"
+                  subRelType="outcome"
+                  validationDate="2020-01-01">corda_______::226852</oaf:relation>
   </metadata>
   <about xmlns:oai="http://www.openarchives.org/OAI/2.0/">
     <provenance xmlns="http://www.openarchives.org/OAI/2.0/provenance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/provenance http://www.openarchives.org/OAI/2.0/provenance.xsd">