Added missing datacite Relations into dhp-schemas

src/main/java/eu/dnetlib/dhp/schema/common/ModelConstants.java

@@ -102,6 +102,15 @@ public class ModelConstants {
 	public static final String IS_DERIVED_FROM = "IsDerivedFrom";
 	public static final String COMPILES = "Compiles";
 	public static final String IS_COMPILED_BY = "IsCompiledBy";
+	public static final String DESCRIBES = "Describes";
+	public static final String IS_DESCRIBE_DBY = "IsDescribedBy";
+	public static final String IS_METADATA_FOR = "IsMetadataFor";
+	public static final String IS_METADATA_OF = "IsMetadataOf";
+	public static final String HAS_ASSOCIATION_WITH = "HasAssociationWith";
+	public static final String IS_REQUIRED_BY = "IsRequiredBy";
+	public static final String REQUIRES = "Requires";
+
+
 
 	public static final String CITATION = "citation"; // subreltype
 	public static final String CITES = "Cites";

src/main/java/eu/dnetlib/dhp/schema/common/ModelSupport.java

@@ -125,6 +125,12 @@ public class ModelSupport {
 		set(relationInverseMap, RESULT_RESULT, RELATIONSHIP, IS_RELATED_TO, IS_RELATED_TO);
 		set(relationInverseMap, RESULT_RESULT, RELATIONSHIP, IS_COMPILED_BY, COMPILES);
 
+		set(relationInverseMap, RESULT_RESULT, RELATIONSHIP, IS_DESCRIBE_DBY, DESCRIBES);
+		set(relationInverseMap, RESULT_RESULT, RELATIONSHIP, IS_METADATA_FOR, IS_METADATA_OF);
+		set(relationInverseMap, RESULT_RESULT, RELATIONSHIP, HAS_ASSOCIATION_WITH, HAS_ASSOCIATION_WITH);
+		set(relationInverseMap, RESULT_RESULT, RELATIONSHIP, IS_REQUIRED_BY, REQUIRES);
+
+
 		set(relationInverseMap, RESULT_RESULT, VERSION, IS_PREVIOUS_VERSION_OF, IS_NEW_VERSION_OF);
 		set(relationInverseMap, RESULT_RESULT, VERSION, IS_VARIANT_FORM_OF, IS_ORIGINAL_FORM_OF);
 		set(relationInverseMap, RESULT_RESULT, VERSION, IS_OBSOLETED_BY, OBSOLETES);
@@ -152,6 +158,21 @@ public class ModelSupport {
 		}
 	}
 
+	/**
+	 * Helper method: fina a relation filtering by a relation name
+ 	 * @param relationName
+	 * @return
+	 */
+	public static RelationInverse findRelation(final String relationName) {
+		return relationInverseMap.values()
+				.stream()
+				.filter(r -> relationName.equalsIgnoreCase(r.getRelClass()))
+				.findFirst()
+				.orElse(null);
+
+
+	}
+
 	/**
 	 * Helper method: combines the relation attributes
 	 * @param relType
@@ -160,7 +181,7 @@ public class ModelSupport {
 	 * @return
 	 */
 	public static String rel(String relType, String subRelType, String relClass) {
-		return String.format("%-%-%", relType, subRelType, relClass);
+		return String.format("%s-%s-%s", relType, subRelType, relClass);
 	}
 
 	private static final String schemeTemplate = "dnet:%s_%s_relations";

src/test/java/eu/dnetlib/dhp/schema/common/ModelSupportTest.java

@@ -1,15 +1,15 @@
 
 package eu.dnetlib.dhp.schema.common;
 
-import static org.junit.jupiter.api.Assertions.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-
-import org.junit.jupiter.api.Nested;
-import org.junit.jupiter.api.Test;
-
 import eu.dnetlib.dhp.schema.oaf.OafEntity;
 import eu.dnetlib.dhp.schema.oaf.Relation;
 import eu.dnetlib.dhp.schema.oaf.Result;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+
+import static org.junit.jupiter.api.Assertions.*;
 
 public class ModelSupportTest {
 
@@ -34,4 +34,19 @@ public class ModelSupportTest {
 			assertTrue(result);
 		}
 	}
+
+
+	@Nested
+	class InverseRelation {
+
+		@Test
+		void findRelations() throws IOException {
+			assertNotNull(ModelSupport.findRelation("isMetadataFor"));
+			assertNotNull(ModelSupport.findRelation("ismetadatafor"));
+			assertNotNull(ModelSupport.findRelation("ISMETADATAFOR"));
+			assertNotNull(ModelSupport.findRelation("isRelatedTo"));
+
+
+		}
+	}
 }